\nAbout Arbitrum Foundation\n\n\nThe Arbitrum Foundation is dedicated to scaling Ethereum through cutting-edge Layer 2 solutions. Our flagship product, Arbitrum One, an Optimistic Rollup, enables faster, more affordable transactions while maintaining Ethereum’s security and decentralization. We empower developers to build decentralized applications (dApps) that are both scalable and secure, using Arbitrum chains, which offer flexibility in performance and cost. Our mission is to enhance the Ethereum ecosystem and drive the adoption of Web3 technology by delivering high-performance, open-source blockchain solutions. Arbitrum is already the leading Ethereum scaling solution with hundreds of dApps on the platform and over $13bn TVL.\n\n\nAt the Arbitrum Foundation, we value decentralization, innovation, and community. We are committed to shaping the future of decentralized finance and blockchain technology, and we’re looking for passionate individuals to help us build the next generation of the Web.\n\n\nYour Role\n\n\nAs a Data Engineer, you'll play a foundational role in reshaping our data infrastructure while also delivering key insights to drive decision-making. You’ll be responsible for setting up data pipelines, integrating multiple sources (on-chain & off-chain), and maintaining existing dashboards while creating new ones for our leadership and internal teams.\n\n\nThis is a hybrid role, ideal for someone who enjoys both the technical challenge of data engineering and the business impact of analytics. You’ll work closely with cross-functional teams to ensure our data is accurate, accessible, and actionable.\n\n\n\nYour Responsibilities\n* Design & implement scalable data pipelines to ingest, transform, and store data from multiple sources (blockchain data, Google Analytics, CRM, internal databases).\n* Build & maintain a centralised data warehouse (BigQuery or similar) to unify structured and unstructured data.\n* Develop & optimise SQL queries for data extraction and reporting.\n* Create and maintain dashboards to visualize key metrics, helping teams make data-driven decisions.\n* Ensure data accuracy & reliability by implementing validation and quality assurance processes.\n* Automate data processes and improve efficiency through scripting (Python, SQL).\n* Integrate Web3 analytics tools (e.g. Dune Analytics, Allium, Flipside, etc.) for blockchain data insights.\n* Assess leads (e.g. grant proposals, product requirement documents, etc)  from a technical and data standpoint, focusing on the technical team capabilities, architecture and source code and the timeline credibility.\n\n\n\nWhat You'll Need\n* Strong SQL skills (BigQuery, PostgreSQL, or similar).\n* Experience with ETL tools (e.g. Airbyte, Fivetran, or other or custom-built solutions).\n* Proficiency in Python for scripting and automation.\n* Ability to work with a variety of APIs to extract and integrate data (e.g. Google Analytics, CRM, blockchain indexers).\n* Understanding of blockchain data structures, and how to work with transaction data.\n* A pragmatic mindset—you know when to build from scratch and when to use existing solutions.\n* Experience with data visualisation tools (e.g. Looker, Google Data Studio, Metabase).\n* Ability to communicate insights to non-technical stakeholders.\n\n\n\nNice to Have\n* Knowledge of blockchain indexing (e.g. TheGraph, SubSquid, etc.) and smart contract transactions decoding.\n* Hands-on experience with Dune Analytics, Allium or Nansen.\n* Familiarity with data governance best practices.\n\n\n\n\n\n\nArbitrum Foundation Perks\n\n\nThe Arbitrum Foundation's benefits program is designed to prioritize the health and well-being of you and your family. Our comprehensive compensation package offers a range of benefits for all full-time employees:\n\n\n- Remote first global workforce\n- Industry-leading healthcare insurance\n- Home office set-up allowance\n- Wellbeing allowance\n- Growth / continuing education allowance\n- Flexible time off\n- Company-issued laptop\n\n\nThe Arbitrum Foundation is committed to a diverse and inclusive workplace and is an equal opportunity employer. We do not discriminate based on race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. The Arbitrum Foundation is committed to treating all people in a way that allows them to maintain their dignity and independence. We believe in integration and equal opportunity. Accommodations are available throughout the recruitment process and applicants with a disability may request to be accommodated throughout the recruitment process. We will work with all applicants to accommodate their individual accessibility needs.\nIf you believe you're a strong candidate but don’t meet every requirement listed in the job description, we still encourage you to reach out. We’d love the opportunity to connect and explore how you could be a great fit for the role.\n\n\nLearn More about The Arbitrum Foundation\nWebsite|Twitter|Telegram|Discord|LinkedIn \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Web3, Python, Finance and Engineer jobs that are similar:\n\n $55,000 — $90,000/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n

\nWhat is Polygon Labs?\n\n\nPolygon Labs develops Ethereum scaling solutions for Polygon protocols. Polygon Labs engages with other ecosystem developers to help make available scalable, affordable, secure and sustainable blockchain infrastructure for Web3. Polygon Labs has initially developed a growing suite of protocols for developers to gain easy access to major scaling solutions, including layer 2s (zero-knowledge rollups and optimistic rollups), sidechains, hybrid chains, app-specific chains, enterprise chains, and data availability protocols. Scaling solutions that Polygon Labs initially developed have seen widespread adoption with tens of thousands of decentralized apps, unique addresses exceeding 225 million, over 1.2 million smart contracts created and 2.56 billion total transactions processed since inception. The existing Polygon network is home for some of the biggest Web3 projects, such as Aave, Uniswap, and OpenSea, and well-known enterprises, including Robinhood, Stripe and Adobe. Polygon Labs is carbon neutral with the goal of leading Web3 in becoming carbon negative.\n\n\n\nKey Job Responsibilities\n* Responsible for investigating and resolving technical issues timely from external or internal communities on blockchain-related inquiries. \n* Create automations, Implement tooling, and write scripts to help developers and increase work efficiency. \n* Continuously improve content on Polygon technical documentation, blogs and community forum\n* Coordinate through the entire flow of incident and release management.\n* Work closely on the line between engineering, monitoring, docs, and Business team\n* Identify and work on metrics, workflows, opportunities and gaps for improving overall blockchain delivery.\n* Very flexible with capability to prioritize multiple tasks and deadlines to facilitate well in a fast-paced, rapidly evolving organization.\n* Directly support the community and developers to deploy, test, and maintain blockchain test network and production network environments’ features like Bridge features, tooling, Dapps, libraries, etc. \n\n\n\nWhat you’ll need - Preferred Qualifications\n* Excellence in communication, coordination and documentation\n* Intermediate experience in Python or JavaScript\n* Ability to proactively decide and act on ambiguous situations with minimal guidance\n* Familiarity with open source and tools involved in DevOps and software development(ex.: github, docker, grafana)\n* Basic knowledge of linux and system administration\n* Basic knowledge of blockchain concepts (ethereum, L2, rollups, nodes, bridges, txn lifecycle and RPC)\n* Background working with mission critical 24/7 systems will be beneficial\n* Must have strong capabilities to identify, analyze and resolve problems logically and systematically\n* Tech skills: Blockchain, Wallets, Web3.\n\n\n\nNice to have: \n* A mindset for web3 and crypto narrative\n* 2+ years of experience in similar roles - e.g. Technical Support\n* Attention to detail in every aspect of work\n* Interest and eagerness to learn blockchain and zero knowledge proof systems \n* Experience writing smart contracts.\n\n\n\n\n\nPolygon Labs Perks\n\n\nThe goal of the Polygon Labs total rewards program is to support the health and well-being of you and your family. Our comprehensive compensation plan includes, the following benefits:\n\n\nRemote first global workforce\nIndustry leading Medical, Dental and Vision health insurance*\nCompany matching 401k with 3% match*\n$1,500 Home Office Set Up Allowance (life-time max)\n$200 Annual Book Allowance Program \n$75 Monthly internet or phone reimbursement\nFlexible Time Off\n1 company wide wellness Friday day off per quarter\nCompany issued laptop\nEgg freezing, mental health, and employee wellness benefits\n\n\n\n\n*In certain countries medical, dental and vision is fully covered for employees & their dependents. This is country and plan specific.\n*401k is for United States employees only\n\n\nPolygon Labs is committed to a diverse and inclusive workplace and is an equal opportunity employer. We do not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. Polygon Labs is committed to treating all people in a way that allows them to maintain their dignity and independence. We believe in integration and equal opportunity. Accommodations are available throughout the recruitment process and applicants with a disability may request to be accommodated throughout the recruitment process. We will work with all applicants to accommodate their individual accessibility needs.\n\n\nIf you think you have what it takes, but don't necessarily meet every single point on the job description, please still get in touch. We'd love to have a chat and see if you could be a great fit.\n\n\nCandidate Privacy Policy\n\n\nLearn More about Polygon Labs\n\n\nWebsite | Twitter | Developer Twitter | Telegram | Reddit | Discord | Instagram | Facebook | LinkedIn\n\n \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Web3, Crypto, Python, DevOps, Engineer and Linux jobs that are similar:\n\n $75,000 — $122,500/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n
\n\n#Location\nRemote

\nWho We Are:\nEthena Labs is building the first ETH based yield-bearing synthetic dollar. Arthur Hayes is a founding advisor and the team has deep experience across traditional finance and crypto engineering from firms such as Cerberus, Wintermute, Flow Traders, Deribit, Paradigm, Aave, Blockdaemon and Kaiko. We are backed by every major exchange and trading entities in the space.\n\n\nWhat we are Doing:\nWe are building derivative infrastructure to enable Ethereum to transform into the Internet Bond via delta-neutral derivatives positions, to create the first crypto-native, yield bearing synthetic dollar: sUSDe.\n\n\nWe believe creating a synthetic dollar which is not reliant on existing banking infrastructure is the single most important problem to solve and largest opportunity in crypto today.\n\n\nUSDe will form the first part of a broader ecosystem of products we are building including fixed and floating rate internet bonds and composable repo leveraged markets.\n\n\nJoin us!!\n\n\nThe Team:\nThe DevOps team is 1 growing to 2 with this hire, together you’d be supporting the build of a Dapp, Ethereum smart contract development and the required trading infrastructure to maintain our delta-neutral USDe positions.We believe creating a synthetic dollar which is not reliant on existing banking infrastructure is the single most important problem to solve and the largest opportunity in crypto today.\n\n\nThe ideal candidate would reside in The Americas or Asia to increase the ease of 24 hour team coverage.\n\n\n\nWho We are Looking For:\n* DevOps Engineer who is passionate about building products/applications within DeFi\n* An individual who is excited by the opportunity to join an early stage team and help evolve and scale a newly launched product\n* At least 2 years of experience in building & maintaining infrastructure for live blockchain projects or organisations\n* An individual who is curious and always looking to learn new concepts on the overlap between frontier technology and financial concepts\n\n\n\nResponsibilities\n* Optimise, harden and maintain our infrastructure to monitor, detect, mitigate performance and security issues\n* Assist in systems and environmental administration, from creating secure Github repos with our engineers, to integrating and managing integrations with 3rd parties (Custody Providers, Exchanges, Wallets)\n* Maintain and improve system processes and technical documentation\n* Maintain and improve infrastructure systems and CI/CD processes\n* Monitor and analyze system performance and implement improvements\n* Stay up to date and maintain on security best practices\n* Assist the DevOps Manager generally\n\n\n\nRequirements\n* 2+ years in a DevOps/SRE role\n* Experience with containerisation and orchestration tools such as Docker and ECS\n* Good Cloud experience and associated toolchains, particularly with AWS, Terraform, Prometheus, Grafana, GitLab actions\n* A working knowledge of Python is a great asset\n* Experience interacting with exchange APIs or external integrations from an infrastructure perspective, or familiarity with Cloud networking\n* You can write and speak fluent English\n\n\n\nOur engineering stack\n* Frontend: React, NextJS, Wagmi, Viem, TailwindCSS\n* Backend: Python, Solidity, SQL, GraphQL, DGraph, Docker, AWS, Ethereum.\n* DevOps (You): AWS, Terraform, Prometheus, Grafana, GitLab actions, Docker\n\n\n\n\n$100,000 - $130,000 a year\n\nIf you subscribe to the mission of separating the dollar from the state, then we want to hear from you!\n\n\nWe look forward to receiving your application and will be in touch after having a chance to review. \n\n\nIn the meantime, here are some links to more information about Ethena Labs to help you check us out:\nWebsite\nTwitter\nLinkedIn\nDiscord \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Crypto, Ethereum, Python, Docker, DevOps, Finance, Cloud and Engineer jobs that are similar:\n\n $60,000 — $112,500/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n
\n\n#Location\nGlobally Remote

\nWho We Are:\nEthena Labs is building the first ETH based yield-bearing synthetic dollar. Arthur Hayes is a founding advisor and the team has deep experience across traditional finance and crypto engineering from firms such as Cerberus, Wintermute, Flow Traders, Deribit, Paradigm, Aave, Blockdaemon and Kaiko. We are backed by every major exchange and trading entities in the space.\n\n\nWhat we are Doing:\nWe are building derivative infrastructure to enable Ethereum to transform into the Internet Bond via delta-neutral derivatives positions, to create the first crypto-native, yield bearing synthetic dollar: sUSDe.\n\n\nWe believe creating a synthetic dollar which is not reliant on existing banking infrastructure is the single most important problem to solve and largest opportunity in crypto today.\n\n\nUSDe will form the first part of a broader ecosystem of products we are building including fixed and floating rate internet bonds and composable repo leveraged markets.\n\n\nJoin us!!\n\n\nThe Team:\nThe DevOps team is is expanding with the launch of our protocol and as such needs to provide 24/7 coverage. Together you’ll be supporting the build of a Dapp, Ethereum smart contract development and the required trading infrastructure to maintain our delta-neutral USDe positions. We believe creating a synthetic dollar which is not reliant on existing banking infrastructure is the single most important problem to solve and the largest opportunity in crypto today.\n\n\nThe ideal candidate would reside in The Americas or Asia to increase the ease of 24 hour team coverage.\n\n\n\nWho We are Looking For:\n* DevOps Engineer who is passionate about building products/applications within DeFi\n* An individual who is excited by the opportunity to join an early stage team and help evolve and scale a newly launched product\n* At least 1 year of experience in building & maintaining infrastructure for live blockchain projects or organisations\n* An individual who is curious and always looking to learn new concepts on the overlap between frontier technology and financial concepts\n\n\n\nResponsibilities\n* Help optimise, harden and maintain our infrastructure to monitor, detect, mitigate performance and security issues\n* Assist in systems and environmental administration, from creating secure Github repos with our engineers, to integrating and handling elements of integrations with 3rd parties (Custody Providers, Exchanges, Wallets)\n* Maintain and improve system processes and technical documentation\n* Maintain and improve infrastructure systems and CI/CD processes\n* Monitor and analyze system performance and implement improvements\n* Stay up to date and maintain on security best practices\n* Assist the DevOps Manager generally\n\n\n\nRequirements\n* 1+ year in a DevOps/SRE role\n* Experience with containerisation and orchestration tools such as Docker and ECS\n* Good Cloud experience and associated toolchains, particularly with AWS, Terraform, Prometheus, Grafana, GitLab actions\n* A working knowledge of Python is a great asset\n* Experience interacting with exchange APIs or external integrations from an infrastructure perspective, or familiarity with Cloud networking\n* You can write and speak fluent English\n\n\n\nOur engineering stack\n* Frontend: React, NextJS, Wagmi, Viem, TailwindCSS\n* Backend: Python, Solidity, SQL, GraphQL, DGraph, Docker, AWS, Ethereum.\n* DevOps (You): AWS, Terraform, Prometheus, Grafana, GitLab actions, Docker\n\n\n\n\n$80,000 - $100,000 a year\n\nIf you subscribe to the mission of separating the dollar from the state, then we want to hear from you!\n\n\nWe look forward to receiving your application and will be in touch after having a chance to review. \n\n\nIn the meantime, here are some links to more information about Ethena Labs to help you check us out:\nWebsite\nTwitter\nLinkedIn\nDiscord \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Crypto, Ethereum, Python, Docker, DevOps, Finance, Cloud and Engineer jobs that are similar:\n\n $60,000 — $112,500/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n
\n\n#Location\nGlobally Remote

About the Opportunity\n\nTrust Machines is incubating a DeFi Lending app, and we’re looking for a Lead Engineer to join our remote-first team as the first dedicated Lending engineer. The Lending app is building the bleeding edge of Bitcoin DeFi, using novel smart contracting functionality on Bitcoin to deliver a 10x improvement on existing DeFi lending. This role will be critical in determining vision and direction, advising on and implementing technical design, and working with the team to develop a robust and long-term product. The ideal candidate has start-up experience, is passionate about building amazing consumer apps, and is hungry to build the next big Web3 app.\nHere’s what you’ll do:\n\n\n* Collaborate with our core engineering team to architect a secure, decentralized, and highly-functional web3 lending app\n\n* Transition codebase from external engineering team, bringing development in-house and setting up operational processes for our new internal team\n\n* Partner with GM to build a team of dedicated engineers for Lending, while also collaborating with the broader Trust Machines engineering team\n\n* Help define the vision and direction for Lending and DeFi at Trust Machines\n\n* Own Lending product development, from ideation and design through deployment and operation\n\n* Design, develop, and deploy smart contracts and decentralized applications on various blockchain platforms, writing clean, efficient, and maintainable code\n\n* Collaborate cross-functionally with various TM teams including core engineering, product design, UX, and business development\n\n\n\nWhat we're looking for:\n\n\n* A passion for Bitcoin, DeFi, and crypto\n\n* Self-motivation and self-management\n\n* Strong problem-solving and analytical skills, with a focus on discovering solutions instead of identifying roadblocks\n\n* Hands-on experience with smart contract blockchains platforms like Ethereum (EVM), Cosmos, Solana, Stacks, or WebAssembly virtual machines\n\n* Fluency in Solidity or another smart contract language\n\n* Proven experience as a Blockchain Developer or similar role, with a strong understanding of blockchain concepts, consensus algorithms, and cryptographic principles\n\n* Familiarity with smart contract development tools and frameworks (e.g., Truffle, Remix, Web3.js)\n\n* 5+ years of work experience in software development, ideally including work in a consumer-facing fintech startup or defi protocol\n\n\n\nNice to haves:\n\n\n* Fluency in Rust\n\n* Experience in the end-to-end full-stack development and/or launch of a Web3 DeFi protocol\n\n* Experience at a startup as an early engineer, even better if you’ve tried to launch your own\n\n* Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field\n\n* Familiarity with scripting languages for handling and analyzing large datasets (ex: Python using using libraries like Pandas and NumPy)\n\n\n\nWhat we’ll offer:\n\n\n* Remote-first work environment (with home office subsidy)\n\n* Competitive NYC based Salary (regardless of location, benchmarked annually)\n\n\n* $150,000 - $215,000\n\n\n\n\n\n* Equity in Trust Machines\n\n* Participation in future protocol incentives\n\n* Open Vacation Policy, take the days you need\n\n* Health Benefits\n\n* Up to 16 weeks of paid parental leave\n\n* Your choice of technical setup and equipment\n\n* Awesome coworkers and a fun, collaborative environment\n\n\n \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Design, Web3, Solidity, Bitcoin, Ethereum, Python and Engineer jobs that are similar:\n\n $60,000 — $110,000/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n
\n\n#Location\nNew York City, New York, United States

 **About Status:**\nStatus is the gateway to the decentralized web. We’re building the tools and infrastructure for the advancement of a secure, private, and open web3. With the high level goals of preserving the right to privacy, mitigating the risk of censorship, and promoting economic trade in a transparent, open manner, Status is building a community where anyone is welcome to join and contribute.\nAs an organization, Status seeks to push the web3 ecosystem forward through research, creation of developer tools, and support of the open source community. Our core products include an open source, Ethereum-based app for mobile and desktop that gives users the power to chat, make payments and browse the decentralized web, as well as foundational infrastructure for the whole Ethereum ecosystem including the Nimbus ETH 1.0 and 2.0 clients, the Keycard hardware wallet, and the Waku messaging protocol which is a continuation of Whisper.\n\n**Who are we?**\nWe're a remote team made up of 70+ core-contributors and a growing community of members scattered around the globe. We care deeply about open source software, and our organizational structure has minimal hierarchy and fixed work hours. We believe in working with a high degree of autonomy while supporting the organization's priorities.\n\n**The role:**\nWe are the Vac team, and we are building a communications tool with security, censorship resistance and privacy in mind; you will help us research and develop new and existing technologies in secure messaging.\n\n**Responsibilities:**\n\nResearch and develop open protocols for secure messaging.\n\nUse a layered protocol approach that is mindful and explicit about what it requires, what it provides, under what threat models, and with what trade-offs.\n\nCombine cryptoeconomics and traditional technologies to create a sustainable distributed and fault-tolerant system.\n\nWrite and maintain Nim code.\n\nResearch and design core functionality.\n\nProvide feedback on overall design decisions, and participate in code reviews.\n\nUse libp2p to build application-level protocols.\n\nBuild incentivized, distributed systems.\n\nInterpret and implement solutions based on academic research.\n\n**Ideally you will have:**\n[Don’t worry if you don’t meet all of these criteria, we’d still love to hear from you anyway if you think you’d be a great fit for this role!]\n\nA passion for blockchain technology, privacy-preserving technology and decentralization.\n\nStrong academic or engineering background.\n\nExperience with encryption and key exchange mechanisms.\n\nExperience with low level/strongly typed languages (C/C++/Go/Rust or Java/C#).\n\nExperience building networking-heavy applications and p2p networking specifically.\n\nFamiliarity with message propagation in loosely connected networks.\n\nFamiliar with p2p building blocks such as gossiping, routing and discovery (DHTs), and Nat traversal.\n\nExperience designing incentive systems and writing/deploying smart contracts in Ethereum.\n\n**Bonus points if you have:**\n\nContributed to a blockchain-related, open source project.\n\nIn in the Ethereum community.\n\nExperience with cryptography such as OTR, X3DH, Noise protocol.\n\nExperience with Nim.\n\nExperience with off-the-shelf networking stacks such as libp2p / devp2p.\n\n**Hiring process:**\nThe hiring process for this role will be:\n\nIntroductory chat with from our People Ops team\n\nInterview with Oskar, Vac Protocol Research lead\n\nTechnical challenge / peer interview with Hanno or Sanaz from the Vac team\n\nFinal interview with Jacek (Head of Research)\n\nThe steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline. We’re looking for the new Protocol Engineer to join the team as soon as possible.\n\n**Get to know us:**\nFind out about the team here: https://vac.dev/.\nMore about Waku: https://rfc.vac.dev/ \n\nPlease mention the words **CATCH SHOOT YARD** when applying to show you read the job post completely (#RMTguMjI0LjE4NC40MQ==). This is a feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human.\n\n \n\n#Salary and compensation\n $70,000 — $140,000/year\n \n\n#Location\nWorldwide

***In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.***\n\n\n**Job type:** Full-time \n**Role:** Full-Stack Developer \n**Experience level:** Mid-Level, Senior\n**Industry:** Cryptocurrency, Cybersecurity, Network Security, Blockchain \n**Company size:** 11-50 people\n**Location:** San Diego, CA, San Juan, Puerto Rico, Tokyo, Japan or **Remote**\n\n\n**Join the Swarm**\n\nAt Swarm Technologies, Inc, we're developing innovative solutions to age-old information security problems - and we need your help.\n\nAt its core, PolySwarm is market design enabled by Ethereum smart contracts. We are programming a market that will produce crowdsourced threat intelligence (malware detection today, more tomorrow).\n\n** Blockchain experience not required! **\n\nWe're operating in a very new industry and we're prepared to bring candidates up to speed! Few sectors are hot as blockchain right now - talk about professional growth\n\nNo one has done this before. We'll get things wrong - and that's okay! With your help, we'll get fewer things wrong, identify mistakes earlier, and improve processes to prevent future missteps.\n\nYou're in on the ground floor - you'll have a say in what we do and how we do it. By joining Swarm Technologies, you'll be joining a dynamic team on the bleeding edge of information (computer) security and blockchain - answering questions few have thought to ask.\n\n**If you're interested in**\n- technical challenges that cannot be solved via iteration\n- blockchain (Ethereum smart contracts in particular)\n- information security\n- malware reverse engineering automation\n- market design (a la Who Gets What and Why by Alvin Roth)\n- software development\n- unknown unknowns\n\n**then we're interested in you!**\n\n**The Ideal Candidate Is:**\n- independently motivated & self-directing\n- introspective: able to identify weak spots / problem areas our existing processes or code and suggest / implement solutions\n- takes an interest in information security topics - huge props for capture the flag (CTF) participation!\n- enjoys developing software\n\n**At Swarm Technologies, you'll tackle both big-picture and tactical problems, the following are a few examples.**\n\n**Example Big-Picture Problems**\n\nThe Ethereum block time leaves a lot to be desired for a marketplace that intends to supplant millions of malware scans a day.\n\nHow do we best reconcile millions of scans daily with a 15 second block time and today's block size limits?\n\nIn sum: PolySwarm must scale and must support scanning artifacts (files) that may contain confidential information. How do we best reconcile these needs with a default-public, Proof-of-Work Ethereum ecosystem?\n\n**Example Tactical Problem**\n\nPolySwarm is a twist on a prediction market - where security experts attempt to "predict" whether a file / URL or network traffic is malicious or benign. Alongside their prediction ("assertion"), experts "stake" a configurable amount of Nectar (NCT), PolySwarm's crypto token.\n\nSuppose Expert A is lazy and Expert B is a hardworking, upstanding security expert. It would be bad if Expert A was able to simply duplicate the assertions coming from Expert B, exploiting Expert B's hard work for profit. If assertions are placed directly on the public Ethereum blockchain, Expert A can do exactly that.\n\nHow can we design a system that keeps the assertion secret (so Expert B is out of luck) until some configured time, after which assertions are revealed and payouts distributed appropriately?\n\n**The Ideal Candidate possesses demonstrable experience in some or all of these technologies.**\n\nPolySwarm employs the following tools & languages:\nPython\nDocker (+ Swarm, Services, Stack)\nKubernetes (+ Helm)\nTerraform\nAnsible\nSolidity\nReact\nJavaScript\nRust\n\nRefer to our GitHub for examples of our usage: https://github.com/polyswarm\n\n**We Offer**\n- Competitive salaries\n- Excellent health, dental, vision coverage\n- Paid vacation days\n- Travel (if you like). We have offices in San Diego, Puerto Rico and Tokyo and we often find ourselves travelling elsewhere. If travel interests you, we can scratch that itch.\n- Flexible work hours - outside of scheduled meetings, we don't care when you work, we care about your output.\n- Powerful servers, laptops, desktops - whatever you need to be most productive! \n\nPlease mention the words **PLUG POTATO EASILY** when applying to show you read the job post completely (#RMTguMjI0LjE4NC40MQ==). This is a feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human.\n\n \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to JavaScript, Crypto, Python, Full Stack, Web3, Blockchain, Solidity, Ethereum, Developer, Digital Nomad and Travel jobs that are similar:\n\n $70,000 — $130,000/year\n

\nAbout Argent\n\nArgent is lead by experienced entrepreneurs and funded by some of the best VCs in London. Our mission is to give millions of users access to a new decentralized web. We believe blockchain technology will lead to global, transparent and accessible financial and consumer services.\n\n\nAbout the Senior Backend Engineer position\n\nWe are looking for a versatile and passionate backend developper who will join our team of talented engineers to help us build the best mobile blockchain browser.\n\nYou will design and operate the backend services that fuel our decentralised application, develop innovative services on top of Ethereum nodes, and help continuously improve our engineering practices.\n\n\n\nSenior Backend Engineer responsibilities are:\n\n\n* Develop new services that will enable seamless interactions between mobile clients and smart contracts\n\n* Lead the architecture, development and operation of our backend infrastructure in a DevOps manner\n\n* Build a layer of innovative services on top of Ethereum nodes\n\n* Continuously improve the efficiency, scalability, and reliability of our backend systems\n\n* Research and recommend testing and automation tools\n\n* Review and enforce security best-practices for all internal and external services\n\n* Collaborate closely with the other engineering teams to ensure an overall efficient architecture of our product\n\n\n\n\nSenior Backend Engineer requirements are:\n\n\n* You have 5+ years of experience designing and delivering scalable distributed systems in Java. Knowledge of other languages such as Javascript, Clojure, Python or Go is a plus\n\n* You have hands-on experience in designing and operating a secure infrastructure on AWS\n\n* You like to get your hands dirty and you are never afraid to experiment with technology\n\n* You have good knowledge of cryptography and security best practices\n\n* You have strong problem solving and troubleshooting skills\n\n\n\n\nHow we work ?\n\nWe are a distributed team but find communication much easier when working on similar time zones. You will need to be based in a timezone between GMT-3 and GMT+3. \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Crypto, Senior, Engineer, Backend, Web3, Blockchain, Ethereum, DevOps, Python and Mobile jobs that are similar:\n\n $70,000 — $125,000/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n