Web3 Core Engineer\n\nRemote\nAbout Brave\n\nBrave is on a mission to protect the human right to privacy online. We’ve built a free web browser that blocks creepy ads and trackers by default, a private search engine with a truly independent index, a browser-native crypto wallet, and a private ad network (opt-in!) that directly rewards you for your attention. And we’re just getting started. Already 80 million people have switched to Brave for a faster, more private web. Millions more switch every month.\n\nThe internet is a sea of ads, hackers, and echo chambers. Big Tech makes huge profits off our data, and tells us what’s true and what’s not. Brave is fighting back. Join us!\nSummary\n\nBrave is looking for an experienced Senior Software Engineer with a focus on blockchain integrations with Brave.  You'll work on our Brave Wallet.  This is a high profile and impactful, hands-on position.  Work together with our product designers, developers and privacy/security experts to help us take our wallet to the next level.\n\nYour responsibilities:\n\n\n* Work closely with the backend team to understand intricacies and help iterate on components used to build our wallet libraries.\n\n* Integrate new features in brave-core that help our front-end team connect prototypes to live data.\n\n* Be up-to-date with upcoming protocol upgrades, BIPs, EIPs, etc.\n\n* Be involved in investigating bugs around blockchain edge cases.\n\n\n\n\n \nRequirements\n\n\n* 5+ years experience with application development.\n\n* Strong C++ development skills required.\n\n* Some JavaScript / TypeScript development skills are a plus.\n\n* History of open source contributions.\n\n* Good understanding of blockchain protocols (Bitcoin, Ethereum, Solana, etc.) and the DeFi ecosystem are a plus.\n\n* Familiarity with cryptocurrency wallet stack (mechanics, UX, etc.).\n\n* Experience with software development via distributed development teams.\n\n* Comfortable working in an open source setting.\n\n* A passion for helping protect users' privacy and security.\n\n* Written and verbal communication skills in English.\n\n* Proven record of getting things done.\n\n\n\n\n \nWorking at Brave\n\n\n* Industry-leader in privacy, with a research and engineering team that’s innovating everyday to keep people safer online and beat Big Tech\n\n* Highly competitive salaries & benefits, and generous home-office stipends\n\n* Fully remote team (no office, no commute)\n\n* Welcoming, humble, ridiculously smart teammates, and a truly flat org structure\n\n* Opportunity to get in early at a hyper-growth company, and revolutionize the web\n\n* Oh, and did we mention Brendan, our CEO & co-founder, invented JavaScript?\n\n\n\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 Web3, Crypto, JavaScript, Typescript, Ads, Senior, Engineer and Backend jobs that are similar:\n\n $60,000 — $95,000/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 Francisco, California, United States

\nAbout Us\n\nBitMEX stands as a globally leading exchange for crypto derivatives, offering traders a professional-grade trading platform. Since its inception in 2014, BitMEX has maintained an impeccable security record with “no coin lost, ever!”.\n\nOur platform caters to cryptocurrency derivatives traders by providing low latency, deep liquidity, and maximum availability. Currently, BitMEX offers more than 100 derivatives contracts, 11 pairs for spot trading, and an easy covert function between 30 different cryptocurrencies.\n\nIn 2015, BitMEX revolutionised the market by inventing the Perpetual Swap, which has since become the most widely traded crypto product. Demonstrating a commitment to transparency, since 2021, BitMEX has been among the first exchanges to regularly publish its on-chain Proof of Reserves and Proof of Liabilities, ensuring that the funds available exceed the total client balances."\n\nFor more information on BitMEX, company initiatives, product listings, launches and competitions, please visit the BitMEX Blog or www.bitmex.com, and follow our Discord, Telegram and Twitter.\n\nOverview\n\nBitMEX is a leading crypto exchange with a high performance web application and popular API. We are working on a cutting edge mobile application to bring a new BitMEX trading experience to our users, in a more convenient & ergonomic form. We have a small team of engineers & UX designers focused on making the experience great.\n\nAs a Senior Software Engineer (Mobile), you are an engineer with experience in design and implementation of mobile applications. The BitMEX mobile app for iOS and Android is written on React Native using Javascript, Kotlin, and Swift. If you’re right for this role, you should have a background in React Native development and be comfortable developing with either native iOS or Android.\n\nKey Responsibilities\n\n\n* Collaborate with product managers & designers, prototyping and bringing breakthrough experiences to our users\n\n* Add strength to our engineering culture by meeting & setting new standards of engineering, via participating in code review, team discussion & leading by example with solid coding practices\n\n* Guarantee a smooth user experience by writing well tested & highly performant code\n\n* Development of the BitMEX React Native mobile application\n\n* Mentoring other engineers on coding practices, design philosophies, and engineering craft\n\n* Exploring and evaluating new stack components and architecture ideas as necessary\n\n* Regularly reviewing code\n\n* Native iOS or Android experience a plus\n\n\n\n\nQualifications\n\n\n* Experience with Javascript and/or React Native \n\n* Significant experience scaling mobile applications to a large diversity of devices  \n\n* Experience with mobile end-to-end testing\n\n* Experience making complex, data-driven products accessible to consumers\n\n* Ability to simultaneously develop several products and concepts in development\n\n* Familiarity with current UX trends and curiosity for new UX concepts (conversational UI, etc)\n\n* Demonstrable ability to work in small teams and is willing to take ownership over product features\n\n* Detail oriented, able to focus, and is comfortable submerging into the depths of code in order to emerge with new insights & a way forward\n\n* Have passion for technological innovation, with a keen interest in what’s happening in the crypto space\n\n* Candidates with less experience will be considered for the Software Engineer role\n\n\n\n#LI-CH1 \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Design, Crypto, React, JavaScript, Mobile, Senior, Android and Engineer jobs that are similar:\n\n $67,500 — $117,500/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\nHo Chi Minh City, Ho Chi Minh City, Vietnam

\nCompany Background:\n\nThe Giving Block, a Shift4 company, is the platform helping nonprofits fundraise more effectively from modern philanthropists. Pioneers of the “Crypto Philanthropy” movement, The Giving Block developed the leading solutions for cryptocurrency donations, taking crypto and NFT donations mainstream in the nonprofit sector. The Giving Block’s team then developed a stock giving experience built to empower even more donors to give non-cash assets. When combined, The Giving Block’s product suite empowers more donors than ever to give assets to their favorite causes. Today, thousands of nonprofits are using The Giving Block to fundraise from modern philanthropists. Learn more about The Giving Block here.\n\nShift4 Payments (NYSE: FOUR) is a leading provider of integrated payment processing and technology solutions, delivering a complete omnichannel ecosystem that extends beyond payments to include a wide range of value-added services. The company’s technologies help power over 350 software providers in numerous industries, including hospitality, retail, F&B, e-commerce, lodging, gaming, nonprofits, and many more. With over 7,000 sales partners, the company securely processed more than 3.5 billion transactions annually for over 200,000 businesses in 2019. For more information, visit shift4.com. \n\nShift4’s entry into the nonprofit market began when our CEO raised $243 million for St. Jude as part of his trip to space. Soon after, we acquired The Giving Block, the leader in Crypto Philanthropy. Now we’re expanding to formally offer a full range of payment processing products and services to the nonprofit industry.\n\nSummary:\n\nWe are looking for talented Backed End developer to join our engineering team. You will be working in one of our international Scrum teams in a fast-paced “startup like” environment, participating in development of Core services, working on new features and integrations, taking part in all Scrum team activities, you will be not only doing hands on development and also making technical decisions and designing technical solutions. We need someone who is smart and proactive in taking ownership and seeing problems through to resolution, responsible and self-managed, but at the same time a good team player.\n\nJob Responsibilities:\n\n\nWork with founders and senior leadership to bring ideas to life\n\nContinue developing the core product and infrastructure\n\nExample projects: \n\n\n\nCreating internal and external dashboards\n\nClient self-service portal\n\nDonation widget and fundraising platform updates\n\nPartner integrations\n\nDesigning, building and maintaining end-to-end backend services using TypeScript, Node.js and our company's framework.\n\nWriting well-structured, maintainable, and efficient code along with unit tests.\n\nIntegrations with third-party APIs, development of our public API.\n\nResearch and analyze epic tasks and collaborate with the product team.\n\n\n\nEnsure security and quality of backend services as we deal with our client's money.\n\nProvide production support, troubleshooting and bug fixing.\n\nStorage layer: design DB schema, SQL query writing, query performance analysis.\n\nWork in Agile team using Scrum methodology, participate in all sprint activities, grooming sprint backlog, estimation of sprint tasks, creation of technical solutions etc.\n\nCollaborate with the development team, QAs and product team on system improvements and selection of tools and technologies, code review.\n\nAssist the team in creating and maintaining tech documentation.\n\n\n\n\nCompetencies:\n\n\n4+ years of experience as a back-end developer with at least 2-3 recent years of experience with NodeJS\n\nExperience with TypeScript\n\nYou are skilled in SQL databases, OOP, SOLID, system design, design patterns and GRASP\n\nA thorough understanding of writing secure code and an awareness of common security vulnerabilities in web applications\n\nStrong communication skills in English \n\nReact JS\n\nGood understanding about React JS app architecture\n\nRest API\n\nDeep understanding of JavaScript \n\nWeb security\n\nCSS-in-JS\n\nTypeScript\n\nExperience with React JavaScript framework a plus \n\n\n\n\nQualifications:\n\n\nKnowledge of PostgreSQL, cloud providers (AWS, Google Cloud), message queue (RabbitMQ, AWS SQS, Kafka), Docker\n\nYou have designed and developed web services or/and done integrations with third party APIs\n\nExperience in production support (troubleshooting, bug fixing)\n\nInterest in blockchain, cryptocurrencies, and/or non-profits\n\nAnalytical and problem solving skills\n\nGood understanding of  Web Security Vulnerabilities and best practices\n\nExperience with agile product development\n\nExperience with Jira software (or similar platforms) a plus \n\nSelf-starter with an ability to learn new concepts quickly\n\n\n\n\n \n\nThis is a fully remote position, candidates from European time zones are highly welcome.\n\nPlease note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.\n\nWe are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, color, sex, age, national origin, religion, sexual orientation, gender identity and/or expression, status as a veteran, and basis of disability or any other federal, state or local protected class. \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Design, Crypto, NFT, React, JavaScript, Cloud, Senior, Sales and Backend jobs that are similar:\n\n $55,000 — $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\nLondon, England, United Kingdom

Iron Fish is a new cryptocurrency that takes no shortcuts on privacy and usability. Privacy isn’t just important, it’s essential to crypto’s success. Our vision is for Iron Fish to become a shielded layer for many more assets, even ones on different chains, and provide a platform for true digital cash.\n\nA core belief at Iron Fish is that privacy and ease-of-use are not in opposition. Users and developers deserve both. Our codebase is TypeScript + Rust, so the world's 1M+ JavaScript developers can contribute. The current implementation is even compatible to run a full Iron Fish node directly in the browser in future iterations.\n\nWe are looking for someone who's passionate about creating amazing user experiences and continuously dispelling the myth that crypto is hard.\n\nWe're looking for Full Stack Engineers that will work cross-functionally—collaborating with designers, leadership, and other engineers to design features and break down high-level goals into tasks and timelines. This role is perfect for someone excited to work on uncharted territory in decentralized networks and cutting edge cryptography.\n\nWhy Iron Fish?\nWe promise you will be challenged, and always learning. This project involves distributed systems, some heavy-duty cryptography, UI/UX challenges of simplifying complex information, and more. You will build tools that help bring equality to the global economy, so that everyone has access to complete financial sovereignty. We value kindness, curiosity, and the willingness to learn and to teach.\n\nWhat you’ll do:\nAs an engineer in a fast growing company, the day-to-day may vary. But here is some of what you can expect to do:\n- Build, document and maintain tests, features, and infrastructure\n- Communicate and document architectural designs and requirements\n- Write high quality, well-tested code to meet the needs of your customers\n\nWhat we are looking for:\nBelow are just some examples of what your background may look like—go ahead and apply even if your experience is a little different.\n\nWritten production-level code in Node, React, JavaScript, TypeScript, or Rust\n\nWorked in at least one of our focus areas: \n- Cryptocurrency architecture development\n- Web and/or Electron application development\n- P2P application development\n- Security\n\nNice to haves\nYou’ve worked with React, React Native, Typescript\nYou have experience with Blockchains (such as Bitcoin, Ethereum, etc..)\nYou are interested in world economies or what it takes to build a global currency\n\n \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to DevOps, Engineer, Full Stack, Front End, React, JavaScript, Crypto and Node jobs that are similar:\n\n $65,000 — $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\nSF / Remote

\nIron Fish is a new cryptocurrency that takes no shortcuts on privacy and usability. Privacy isn’t just important, it’s essential to crypto’s success. Our vision is for Iron Fish to become a shielded layer for many more assets, even ones on different chains, and provide a platform for true digital cash.\n\nA core belief at Iron Fish is that privacy and ease-of-use are not in opposition. Users and developers deserve both. Our codebase is TypeScript + Rust, so the world's 1M+ JavaScript developers can contribute. The current implementation is even compatible to run a full Iron Fish node directly in the browser in future iterations.\n\nWe are looking for someone who's passionate about creating amazing user experiences and continuously dispelling the myth that crypto is hard.\n\nWhat you'll do:\nYou will work collaboratively with other engineers, our designer and the greater Iron Fish community to make Iron Fish a pleasure to use. The types of projects you might work on are:\n\n- Incentivized testnet (see Figma)\n- Incentivized testnet video walkthrough\n- Iron Fish wallet (see Figma)\n- Node dashboard\n- Mining software front end\n- .. and many other projects\n\nAs any engineer at Iron Fish your other responsibilities will include:\n- Build, document and maintain tests\n- Communicate and document architectural designs and requirements\n- Write high quality, well-tested code to meet the needs of your customers\n\nWhat we are looking for\nBelow are just some examples of what your background may look like—go ahead and apply even if your experience is a little different.\n\n- Written production-level code in React and TypeScript\n- Web and/or Electron application development\n- 3+ years of experience\n\nNice to haves\n- You have experience with blockchains (e.g. Bitcoin, Ethereum and other implementations)\n- Passionate about privacy and privacy preserving tools\n\n \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to DevOps, Engineer, Full Stack, Front End, React, JavaScript, Crypto, Video and Node jobs that are similar:\n\n $60,000 — $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\nSF / Remote