\nAt Tenderly, we're not just shaping the future of blockchain technology – we're defining it. As a full-stack Web3 infrastructure platform, we provide multi-network support and a comprehensive ecosystem that covers every aspect of the blockchain journey, from initial encounters to advanced Node solutions and serverless cloud compute functions.\n\n\nOur mission is crystal clear: to empower developers worldwide to harness the full potential of blockchain technology for creating innovative products. With our robust Web3 infrastructure platform, we've already enabled tens of thousands of developers to work more efficiently with blockchain. We thrive on tackling complex challenges head-on, crafting solutions that push the boundaries of what's possible in the blockchain world. From developing bespoke Ethereum Virtual Machine (EVM) implementations to designing proprietary storage layers optimized for our advanced blockchain node solutions, our team is at the forefront of industry innovation.\n\n\nAbout the role\n\n\nWant to shape the future of blockchain security? As a Senior Distributed Systems Engineer on Tenderly’s Security team, you’ll be at the forefront of building innovative security products that safeguard the most critical protocols in Web3. You’ll design and scale the backbone of our infrastructure, leveraging cutting-edge tech to develop tools that protect users and push the boundaries of blockchain security. Ready to make an impact? Let’s build the future of secure Web3 together.\n\n\nWhat you’ll do\n\n\nBuild High-Performance Systems\n- Design and scale multi-region backend services that power millions of users in real time.\n- Optimize performance to handle hundreds of thousands of requests per second and process terabytes of data without breaking a sweat.\n- Master trade-offs between consistency, availability, and low latency to deliver millisecond response times.\n\n\nEngineer for Scale & Reliability\n- Build resilient data pipelines  with banking-level constraints—consistent, ordered, and processed exactly once\n- Develop real-time streaming solutions with minimal latency, tackling tail latency to deliver a seamless user experience.\n\n\nPush Boundaries and Drive Innovation\n- Explore EVM and Solidity to analyze malicious code patterns and build cutting-edge detection and prevention solutions.\n- Own high-impact projects, such as analyzing terabytes of data in parallel to extract enhanced address and transaction intelligence\n\n\nAbout You\n\n\nWe’re looking for a highly skilled and forward-thinking engineer who thrives in backend development and distributed systems. You love tackling complex infrastructure challenges, optimizing performance at scale, and pushing the limits of what’s possible. If you have experience in blockchain security or cybersecurity, even better!\n\n\nYou should have:\n- Proven expertise in distributed systems, working with large datasets and distributed storage solutions.\n- Deep technical understanding of low-latency systems, high-throughput infrastructure, and multi-region availability.\n- Proficiency in Go, Rust, or a similar systems programming language.\n- Experience designing complex systems that balance strong consistency, availability, and massive scale.\n- Curiosity for blockchain security, including vulnerabilities and attack patterns.\n- Strong communication skills and the ability to collaborate across teams to build world-class solutions.\n\n\n\nWhat we offer\n* Stock Options - Join the ride! Own a piece of our journey with stock options for everyone.\n* Transparent compensation -No secrets here. Enjoy fair, equal, and transparent salaries.\n* Annual bonus - Performance-based bonus amounting up to 20% of employee's annual base salary paid out twice a year based on KPIs.\n* Fully covered parental leave - Welcome your little one with fully paid parental leave.\n* Tech Gear - MacBook, monitor, and the accessories you love—your setup, your way.\n* Flexible, no less-than vacation - We know that unlimited vacation policies usually have the opposite effect, so we have a minimum of 21.5 days to be used in 12 month timeframe.\n* Flexible Hours - Work when you work best. Collaboration is key.\n* Health Insurance - Keep yourself and your family healthy with our comprehensive coverage.\n* Continuous Learning - Elevate your skills with regular trainings and a professional development budget. We invest in your growth.\n\n\n\n\n\n\nWhy Tenderly?\nJoin us at Tenderly, where our values are not just words on a page but the driving force behind our innovative journey.\nFanatic Drive\nWe're passionately driven to solve our users' problems, tackling challenges with intensity and speed. Our work is our obsession, and we thrive on the fast-paced world of Web3.\nUnderdog Mentality\nWe love defying the odds, rejecting the status quo, and achieving the impossible. We're on a mission to revolutionize blockchain technology, constantly pushing boundaries.\nInward Responsibility\nWe hold ourselves accountable, always striving to improve. We embrace feedback, knowing it drives personal growth and collective success.\nIntentional Collaboration\nOur success relies on individual contributions and mutual support. We share ideas openly, trust each other completely, and continuously push each other to excel.\nTenderly Transparency™️\nWe believe in open, honest communication. We share knowledge and opinions freely, fostering a culture of accountability and trust.\n\n\n\n\n\n\nTenderly is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Design, Web3, Cloud, Node, Senior, Engineer and Backend jobs that are similar:\n\n $80,000 — $120,000/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\nEurope OR In-Office Belgrade

\nSynack’s Penetration Testing as a Service platform manages customers’ attack surfaces by discovering new assets, pentesting for critical vulnerabilities and gaining visibility into the root causes of security risks. We are committed to making the world more secure by harnessing a talented, vetted community of security researchers to deliver continuous penetration testing and vulnerability management, with actionable results. Synack's PTaaS platform has uncovered more than 71,000 exploitable vulnerabilities to date, protecting a growing list of Global 2000 customers and U.S. agencies in a FedRAMP Moderate Authorized environment. For more information, please visit www.synack.com.\n\nAre you process-driven and notice the slightest deviation from the norm? If you get a thrill from helping to correct others’ mistakes and are not afraid to speak up, then this is the role for you. As a Senior QA Engineer you will work on game-changing problems in cybersecurity.  You will validate software using cutting-edge technologies and take testing to the next level as part of a collaborative environment. Sounds interesting?  Keep reading!\n\nPlease note: We can only hire U.S. citizens for this position due to federal government contract requirements. \n\nHere’s what you'll do\n\n\n* Debugs software products through the use of systematic tests to develop, apply and maintain quality standards for firm products. \n\n* Develops, modifies and executes software test plans, automated scripts and programs for testing. \n\n* Contribute to the existing automation tools to add enhancements and improve maintainability\n\n* Maintains documentation of test results to assist in debugging and modification of software. \n\n* Analyzes test results to ensure existing functionality and recommends corrective action. \n\n* Consults with development engineers in resolution of problems. \n\n* Provides feedback in preparation of technical appraisals of programming languages, systems and computation software. \n\n* Ensures quality computer integration into the overall functions of scientific computation, data acquisition and processing. \n\n* Maintain and improve our automated testing and continuous integration systems\n\n* Collaborate with a team of security and software engineers to develop system level testing\n\n* Interface with sales and customers to recreate, diagnose, and help resolve field issues\n\n* Learn new technologies as needed to build tools and improve efficiency and productivity\n\n\n\n\nHere's what you'll need\n\n\n* BS degree in Computer Science, or equivalent experience\n\n* 3+ years in Software Engineering, at least 3 of which in QA and/or SDET\n\n* 1+ years of experience writing scalable automation tests\n\n* JavaScript savvy, preferably specific to Node and React\n\n* Ability to adapt and work in a fast-paced agile environment\n\n* Comfort with writing and reading code, and a basic understanding of data structures\n\n* Hands on experience with automation framework design and development from scratch\n\n* Experience with writing backend integration tests for RESTful APIs\n\n* FE Test Automation expertise in TestCafe, Cypress, Playwright or similar tools (we use playwright)\n\n* Experience with BDD tools like cucumber with the automation framework\n\n* CI tooling experience with Github Actions or similar Strong understanding of all web browsers, versions and functionality\n\n* Strong understanding of testing and debugging backend applications\n\n* Understanding of source control and release management in the context of when/where/why/how to test (we use git)\n\n* Understanding of virtualization and containerization technologies (we use Docker)\n\n* Understanding of Lean and Agile methodologies\n\n* Understanding of Cloud technologies, like AWS, GCP, Azure\n\n* Experience analyzing Logs using splunk, GCP \n\nCandidates must be US citizens\n\n\n\n\nNice to have \n\n\n* Experience with testing cloud based products/applications \n\n* Knowledge and understanding of different kinds of VPNs\n\n* Experience with load and performance testing\n\n\n\n\nReady to join us?\n\nSynack is committed to embracing diversity. Our people are our strength.  Each addition to our team is an opportunity to grow and diversify our ideas, experiences, and viewpoints. We strive to be inclusive of Race, Ethnicity, Religion, Sex, LGBTQ+, Veterans, Disabilities, and Age.  Synack welcomes you!\n\nAs a candidate, Synack cares about your privacy. Please view our candidate privacy policy here.\nThis position has responsibility to ensure Synack’s security and privacy posture is maintained.\n\n$85,000 - $110,000 Salary is determined by a combination of factors including location, level, relevant experience, and skills. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations. The compensation package for this position may also include equity, and benefits. \n\nFor more details about our benefits, please see here. Then for the Employer code, enter: synack \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Design, Cloud, Node, Senior, Sales, Engineer and Backend 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\nSan Mateo, California, United States

\nWho We Are: \n\n\nKarmaCheck is a dynamic technology startup headquartered in San Francisco and is founded by Eric Ly, a trailblazer in the internet industry and former Co-founder and CTO of LinkedIn. Our mission is clear: to revolutionize digital identity verification. We're disrupting the antiquated healthcare credentialing sector within the Background Check industry using our cutting-edge proprietary technology powered by automation, machine learning, and data. Our cost-effective solutions are helping shape the future of digital identity and contributing to the authenticity of the evolving digital landscape.\n\n\n\n\nWe are looking for Senior Software Engineers to join our rapidly expanding team of highly skilled, dedicated, and efficient developers.  We are looking for fullstack and backend-focused engineers. You will work in a fast-paced environment that is moving together with a common goal to provide the best solutions for our customers in markets desperate for innovation.\n\n\nDay to day activity as a senior member of the team will be to design and implement solutions that enable the KarmaCheck platform to scale and perform while adding functionality and maintaining our high degree of security. Your knowledge and experience will be leveraged by acting as a mentor and guide to other engineers on the team and your work ethic will shine as you lead by example to continuously improve the product, technology, processes, and culture of the engineering organization. \n\n\nThis is a 100% telecommute position with the rare exception of (paid) travel for company/team meetings. \n\n\n\nWhat You'll Do:\n* Contribute as part of a cross functional Agile team to build scalable APIs and web application features using Javascript/Typescript (NodeJS) while meeting coding and security best practices.\n* Design and build software with an eye towards modular, extensible, and scalable design.\n* Actively participate in technical product development sessions with other members of the Product and Engineering organization.\n* Enhance existing development processes with best practices for continuous integration, testing, and deployment.\n* Act as a technical solution advisor to engineering and product management \n* Participate in production deployments.\n* Troubleshoot production runtime issues that may arise throughout the entire system.\n* Measure the effectiveness of new features, find and address performance issues, and drive continuous improvement.\n* Participate in electronic communication channels on a constant basis as part of your daily work.\n\n\n\nWhat You'll Need: \n* 7+ years Full Stack design and development\n* 5+ years Javascript experience with a focus on Node JS\n* 3+ years developing software on AWS (API Gateway, Lambda, SQS, SNS, EventBridge, Cloudwatch, RDS, etc)\n* Experience with async data integration patterns and approaches (Webhooks, Pub/Sub, Batch, Asynchronous Messaging, etc.)\n* 3+ years experience with modern front-end frameworks (Vue, React, Angular, etc)\n* 2+ years experience with SQL (preferably MySQL)\n* Extensive experience in Server side communications and integrations with 3rd party APIs\n* Ability to adjust to changing priorities as is common in a startup environmentMust have a passion for building GREAT software\n\n\n\nBonus Points if You Have:\n* Experience working in a fast paced startup\n* Knowledge of async data integration patterns and approaches (Webhooks, Pub/Sub, Batch, Asynchronous Messaging, etc.)\n* Experience with Javascript API frameworks like NestJS\n* You have experience writing infrastructure as code using Serverless Framework \n* You have knowledge of Java/SpringYou have knowledge of SQL / noSQL design fundamentals\n* Demonstrated successful experience working in a remote engineering capacity\n\n\n\nBenefits & Perks: \n* Become a key team member at a startup set to disrupt the background check industry and innovate digital identity.\n* 100% remote work environment with only limited required travel\n* Competitive benefits package including medical, dental, 401k, and EAP.\n* Take the time to Check Yourself - we have an unlimited time off policy.\n* The expected base compensation for this role is between $140,000 - $180,000.00  for work performed in the United States. Starting pay for the successful applicant will depend on a variety of job-related factors, which may include seniority level, experience level, transferable skills, education, location, business needs, training, and market demands. This range may be modified in the future.\n\n\n\n\n$140,000 - $180,000 a year\n\n\nInterview Process: \n1. Recruiter Screen (30 minutes via Zoom, video OFF)\n2. Hiring Manager Screen (60 minutes via Zoom, video ON) \n3. Team Interview (60 minutes via Zoom, video ON); 25 minutes on technical aptitude, 25 minutes on culture & core values alignments, 10 minutes intros & Q&A\n4. Final Project Presentation (60 minutes via Zoom, video ON); You’ll meet with a panel of 3-4 people and present on a technical project you’ve completed and are proud of. \n\n\n\n\n\n\nDisclaimer:\n\n\nKarmaCheck is an equal opportunity employer committed to fostering an inclusive and diverse environment for our employees. We are committed to equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status, or any other reason protected by law.\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, Recruiter, Travel, JavaScript, Video, Serverless, NoSQL, Node, API, Senior and Engineer jobs that are similar:\n\n $60,000 — $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
\n\n#Location\nRemote

\nABOUT EIGENLABS\n\nEigenLabs provides cryptoeconomic security as a service for blockchain projects. Our platform provides programmatic access to the trust layer of Ethereum to make components reusable, allowing builders to rely on Ethereum for security while saving time and resources typically allocated to bootstrapping their own token. EigenLabs technologies also create technical value & efficiency for validators in Ethereum’s proof-of-stake network by enabling them to "re-stake" their assets. Re-staking allows validators to secure multiple protocols and boost rewards by providing security services to oracle networks, data availability networks and dApps running on rollups or side-chains. We’re on a mission to hyperscale ETH & dApps and increase decentralization through re-staking!\n\nTHE ROLE\n\nAt EigenLabs, our engineering teams operate within a customer-aligned team structure, where we believe in shared responsibility for DevOps among all software engineers. As an Infrastructure Software Engineer, you will lead the design and implementation of critical infrastructure components while fostering a culture of collaboration and best practices adoption within your team, and across the company. \n\nYou will work closely with frontend and backend software engineers, leveraging your expertise to empower the entire team to collectively maintain, operate, and enhance infrastructure resources effectively. By championing leading practices, automation, and efficient workflows, you will ensure that our customer-aligned teams can deliver high-quality software solutions with speed, security, and reliability.\n\nYour leadership in infrastructure design, implementation, and reliability engineering will directly contribute to EigenLabs' commitment to blockchain innovation and advancing economic freedom through technology. If you’re passionate about shaping the future of blockchain, and making a meaningful impact on the world, we look forward to hearing from you!\n\nWHAT YOU WILL DO\n\n\n* You will lead the design and implementation of foundational infrastructure components used by every engineering team in production. This includes dynamic configuration, DNS and networking setup, secrets management, container orchestration (e.g., Kubernetes, including platforms such as EKS).\n\n* Demonstrate leadership by taking the initiative to address challenges and drive continuous improvement. Foster a culture of best practices adoption and automation within your team. Share your expertise to empower frontend and backend engineers to efficiently maintain, operate, and enhance infrastructure resources.\n\n* Utilize your proficiency in cloud infrastructure platforms such as AWS, GCP, or similar to optimize our infrastructure for scalability and performance.\n\n* Collaborate with cross-functional teams to identify and implement improvements in infrastructure, monitoring, and incident response.\n\n* Make significant contributions to operational excellence initiatives, ensuring the highest level of efficiency and reliability in our infrastructure. Administer network capabilities and support CI/CD pipelines. Monitor infrastructure using tools like Prometheus, Grafana, or similar. \n\n* Implement and maintain security best practices across all aspects of our infrastructure, including access controls, encryption, and network security\n\n* Participate in on-call rotations to ensure the continued reliability and uptime of our services\n\n* Design, implement and champion Continuous Delivery (CI/CD) principles to automate software development and deployment processes.\n\n* Articulate a long-term vision for maintaining and scaling our infrastructure, aligning it with our product and technical goals.\n\n* Build tools for blockchain node operators that make it easy to launch and operate different types of validator environments\n\n* Proactively contribute to discussions about technical issues, sprint and roadmap planning, and improving engineering processes\n\n\n\n\nWHAT YOU WILL BRING\n\n\n* 5+ years of direct experience in infrastructure, SRE or back-end engineering with public cloud and Linux-based systems.\n\n* Strong design and implementation experience with at least one major cloud platform (AWS preferred)\n\n* Knowledge of authentication, authorisation and accounting (IAM, Federation, RBAC, service accounts) for public cloud and kubernetes\n\n* Containerization and container orchestration with Docker and Kubernetes. Experience with container hardening and implementation within Kubernetes.\n\n* Proficiency in at least one back-end development language such as Python, Go, or C++\n\n* Expertise in Infrastructure as Code (IaC) tools such as Terraform (preferred), Ansible, etc., enabling efficient automation and configuration management.\n\n* Demonstrated experience in production environments with proactive monitoring, logging, alerting,  and profiling with tools such as Prometheus, Grafana, ELK Stack (or alternative log analysis platforms) to ensure robust performance monitoring and troubleshooting capabilities.\n\n* Experience developing and maintaining CI systems (e.g., GitHub Actions, Jenkins, or CircleCI) to facilitate automation of the SDLC. Working knowledge of CD tooling (e.g., AWS Code Pipelines, ArgoCD, Flux), and an understanding of how GitOps deployment models operate\n\n* 3+ years experience with one or more programming languages, preferably Go or Python.\n\n* Knowledge of security best practices, encompassing encryption methods, key management, access control mechanisms, and network security protocols that contribute to the overall security posture of our infrastructure. \n\n* Strong understanding of core Internet protocols: DNS, TCP/SSL, HTTP, gRPC, etc.\n\n* Proven ability to take ownership of projects and work independently. Proficiency in effectively communicating project statuses and diligently documenting activities. Expertise in maintaining meticulous attention to detail across diverse, blockchain-centric environments.\n\n* Track record of successfully delivering complex and high-scale infrastructure\n\n\n\n\nNICE TO HAVES\n\n\n* Contribution to open source projects and/or developing open source tools is advantage\n\n* Data visualization, and observability tooling experience\n\n* Expertise in scaling and migrating systems in dynamic environments, with a strong understanding of incident management processes.\n\n* Experience in information security, including vulnerability assessments, penetration testing, and implementing and automating security controls, with expertise in security protocols (TLS, SSL, SSH) and frameworks (NIST, CIS, ISO 27001). Experience responding to security audits. \n\n* Service discovery and service mesh technologies such as Istio, Linkerd.\n\n* Good understanding of blockchain fundamentals, including wallets, smart contracts, protocol design\n\n* Experience with Liquid Staking or Ethereum Node Operations platforms\n\n\n\n\n \n\nIn compliance with local law, we are disclosing the compensation, or a range thereof, for roles in locations where legally required. $225,000 - $250,000 is the annual base salary. Other rewards may include annual bonuses, short- and long-term incentives, and program-specific awards. In addition, EigenLabs provides various employee benefits, including: \n\n\n* Employer-covered Medical, Dental, and Vision plans\n\n* 401k \n\n* Unlimited Paid Time Off\n\n* 12 weeks of fully paid maternity and paternity leave \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, Ethereum, Docker, Accounting, DevOps, Cloud, Node, Senior, Engineer and Backend jobs that are similar:\n\n $57,500 — $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\nSeattle, Washington, United States