\nJob Description\n\n\nJumper is crypto’s everything-exchange powered by LI.FI. By building on the sophisticated cross-chain infrastructure of LI.FI, we offer a comprehensive multi-chain experience for any and every person in crypto to move and use their funds across chains as easily and flexibly as they desire.\n\n\nOur vision? We want to make multi-chain DeFi easy and fun!\n\n\nWhile we live under LI.FI’s umbrella, we pride ourselves in our small but excellent and very agile team. Jumper already has over 100k active users, and still we are only now getting started to build it from the ground up. As a Senior Full-Stack Engineer you would be at the core of this new adventure - completely owning the realization of Jumper’s underlying infrastructure and bringing new ideas to life!\n\n\n \n\n\nA quick run-down of the job\n\n\nWe are looking for a Senior Full-Stack Engineer who will lead the design, development, and maintenance of our scalable and secure backend infrastructure. This includes the establishment of a completely new backend and a scalable infrastructure for Jumper. Additionally, you will be very hands-on in our frontend and the LI.FI widget integration in order to quickly ship new features. In this role, you are expected to split your work between frontend and backend. In order to move quickly, the emphasis initially will likely be on frontend work during the first few months, with a gradual shift towards backend responsibility over the near-term.\n\n\n \n\n\nWe are a small team, and every one of our engineers is expected to strongly contribute to Jumper’s success by coming up with independent ideas and solutions to complex challenges. The current team includes: a Senior Full-Stack, a Junior Frontend Engineer, a Product Designer, a Technical Product Manager and a Business Lead. In addition, one more Full-Stack Engineer will be added to the team soon. In the near future, we would also love to see one of the Sr. Engineers to evolve into an engineering lead position for our small team.\n\n\n \n\n\nOur current stack:\n\n\n\n * Node.js running TypeScript code in Docker containers\n\n * NextJS and React.js\n\n * MongoDB and Redis\n\n * Github, Kubernetes, AWS and CloudFlare for our GitOps CD chain\n\n * Ether.js and Wagmi\n\n\n\n\n\n \n\n\nPlease note: You must be located in the EMEA region. Your application will not be considered if you're outside EMEA.\n\n\n \n\n\nWhat you’ll do\n\n\n\n * Architecting and implementing scalable and robust infrastructure solutions that can handle growing user loads and evolving business needs (we are already used by over 100k monthly active users).\n\n * Developing and maintaining comprehensive test suites, including unit tests, integration tests, and end-to-end tests, to ensure the reliability of backend systems.\n\n * Design and develop high quality frontend applications that are testable and maintainable.\n\n * Be responsible for development of prototypes, new frontend features and React components.\n\n * Leading the design, development, and maintenance of a newly developed Jumper backend system and APIs.\n\n * Collaborate closely with the Software Engineers, Product Manager and Designers within your team.\n\n * Review the work of your teammates and support them in their growth through guidance and mentorship where needed.\n\n\n\n\n\n \n\n\nWhat makes a good candidate\n\n\n\n * Must be located in the EMEA region.\n\n * Effective communication skills (in English) with the ability to build relationships and work in a small but excellent team while self-guided on a day-to-day basis.\n\n * Extensive professional experience in a similar role (as senior or lead).\n\n * Experience in UX/UI development.\n\n * Experience in software design and architecture.\n\n * Knowledge of testing frameworks and principles.\n\n * Passion for new technologies and ability to autonomously evaluate them and make suggestions for improvement.\n\n * Bachelor's or Master's degree in Computer Science is a plus.\n\n * Previous working experience in the blockchain space or related technical understanding is a plus (especially with Wagmi).\n\n\n\n\n\nWe encourage you to apply if you feel your experience and skills equip you for this job but are not listed here!\n\n\n \n\n\nCompany culture\n\n\n\n * \nEmpowered teams: We take the best person with the right skills, and then inspire them to use them! We trust our team and give them the space and ownership to excel and achieve.\n\n * \nFlexible time management: We believe work should adapt to your life, not the other way around. We only schedule a few fixed meetings every week – you're free to arrange the rest of your time as you like.\n\n * \nInclusive culture: It’s our priority to make our whole team feel included, appreciated and respected. Our global, culturally diverse team is our most important asset.\n\n * \nRemote-friendly: We’re a fully remote, global company. As long as you’re not on Mars (the WiFi is terrible we heard), being part of our team from the comfort of your own home works perfectly well for us.\n\n\n\n\n\n \n\n\nWhat you’ll get\n\n\n\n * Entitlement to a work computer (choice of equipment).\n\n * Unlimited remote days and flexible working hours.\n\n * Annual team off-sites (Thailand was a blast last year & Vietnam will be even blast-ier).\n\n * An annual 1000€ personal development budget once you have worked 6+ months (pro-rated the first year).\n\n * A one-time 1000€ remote budget to use on co-working, office setup, etc.\n\n * Initial equity allocations once you have worked 6+ months.\n\n\n\n\n\n \n\n\nCompensation & Package\n\n\nBase package + equity \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, Docker, Testing, Typescript, Senior, Engineer and Backend jobs that are similar:\n\n $70,000 — $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\nWorldwide

Company Overview:Join Seedify, the #1 Blockchain Gaming Launchpad and Incubation Ecosystem, at the forefront of driving innovation in the gaming, blockchain and Web3 industries. Our mission is to empower project developers and innovators through funding, community building, and a comprehensive support system. At Seedify, we are committed to shaping the future of gaming and blockchain technology.\nKey Responsibilities:\n\nDevelopment and Maintenance: Lead the development and maintenance of backend services using Node.js, TypeScript, and JavaScript. This includes writing clean, efficient, and scalable code.\n\n\nAPI Design and Management: Design and manage RESTful APIs and integrate third-party APIs to support business processes and data exchange.\n\n\nDatabase Management: Work with databases (SQL and NoSQL), including design, development, and optimization, ensuring data integrity and security.\n\n\nPerformance Optimization: Monitor and optimize application performance, focusing on server-side logic, database interactions, blockchain interactions, and integration with front-end components.\n\n\nCode Review and Quality Assurance: Conduct code reviews and ensure adherence to coding standards and best practices. Implement unit and integration tests to maintain high-quality code.\n\n\nCollaboration with Frontend Developers: Collaborate closely with the frontend developers in the team to integrate user-facing elements with server-side logic.\n\n\nTroubleshooting and Debugging: Troubleshoot and debug applications, providing effective solutions to ensure minimal downtime.\n\n\nDevOps and Deployment: Work with DevOps practices, including continuous integration, continuous deployment, and cloud services (like AWS).\n\n\nSecurity Practices: Implement robust security measures, including data protection and authentication mechanisms.\n\n\nTechnical Leadership: Provide technical leadership and mentorship to other team members, fostering a collaborative team environment.\n\n\nResearch and Development: Stay abreast of emerging technologies and industry trends, and apply this knowledge to improve existing systems, particularly in back end engineering but also in the web3 & blockchain space.\n\n\nScalability and Maintenance: Ensure that backend systems are scalable, maintainable, and can support growth.\n\n\nDocumentation: Maintain comprehensive documentation of the systems developed and ensure it's kept up to date.\n\nTeam Structure:You will be an integral part of a multi-disciplinary product development team, alongside front end / back end / test engineers, UI/UX designers, product owner and Web3 subject matter experts.\nCompany Culture:Fully remote, global operation.Agile work environment.Strong emphasis on user-centric development.Proud of the products we build, but always looking for improvements.\nCareer Development Opportunities:Opportunities for rapid growth and advancement into roles with more technical responsibility or management positions.\nLocation:100% remoteTimezone: flexible, but working hours must be in the range between 9AM and 10PM (UTC time).\nRequirements:\nExperience: 4+ Years of experience working as a Software Engineer or Senior Software Engineer.\n\nProficient in back end development: Experience with Typescript / Javascript for back end REST APIs, using frameworks like Express or NestJS, NoSQL and SQL databases, and REST API best practices.\n\nWeb3: Interest on Web3 ecosystem, wallets & transactions, IDOs & ICOs, DeFi (staking, farming, liquidity pools), omnichain.\n\nUser-centric: Experience working on a user-centric product development environment.\n\nTechnical leadership: Experience mentoring and coaching other developers, fostering a quality and continuous learning environment.\nDesirable:Strong knowledge of Web3 ecosystem and blockchain.Experience with payment platforms / providers or similar high risk environments.Understanding of AWS infrastructure and infrastructure as code.Bachelor’s degree in computer science or similar, or related education.\nBenefits:21 days of holidays / year + local bank holidays.Sick days.Budget for training / courses.Budget towards purchasing work equipment such as laptop.\nSalary:\n$5000 -$12000 per monthIn addition to monthly salary paid in stablecoins (USDT), there will be a big bonus in SFUND token payable every 6 months.\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 Design, Web3, DevOps, JavaScript, Cloud, NoSQL, Typescript, API, Senior, 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\nWorldwide

\n*Accepting applicants located in North America\n\nAbout Us\n\nEach year people are diagnosed with cancer, autoimmune diseases, and more. The immune system is the ultimate determinant of health and disease; however, it remains a black box. Leveraging our AI-first technology, we want to provide high-resolution understandings of the immune system to fully unlock its power. And with your help, we can do it.\n\nFrom technology built and proven at Fred Hutch, Ozette is creating a revolutionary immune profiling platform to turn data into actionable insights. Our software is integral to our mission and enhancing insights by 10x in volume and resolution—scientists, clinicians and our teams—will accelerate breakthroughs to drive better patient outcomes.\n\nOzette's collaborative platform enables unprecedented transparency and reproducibility through its version-controlled analysis pipeline. It is built on Typescript and React/RecoilJS and our backend APIs are written in Python/Flask, primarily, with most data stored in PostgreSQL and S3.\n\nOur founders are leading experts in data science and medicine and we are backed by some of the best technology investors, including Madrona Venture Group (first investors in Amazon), Microsoft co-founder Paul Allen’s Institute for Artificial Intelligence, and Vulcan Capital. If you’re passionate about leveraging technology to improve health, explore joining our innovative, creative team. Recognizing that the best candidates do not always match all criteria of the job description, we encourage you to apply if you think you would be a good fit for the role and are inspired by our mission.\n\nWhat you’ll do at Ozette: \n\n\n* Contribute to Ozette Platform development\n\n* Implement and own backend API and platform features and changes\n\n* As part of the engineering team, you'll work side-by-side with a close-knit, collaborative and remote team\n\n* Have an opportunity to inform/teach others about your work \n\n* Help to test Platform releases\n\n* Follow software development lifecycle processes\n\n* Report NCs and deviations to management and complete assigned quality record tasks\n\n\n\n\nWe’d love to hear from you if you have: \n\n\n* Experience or familiarity/interest in working with Python/Flask, PostgreSQL, AWS, Typescript/React\n\n* Prior experience with technologies used within our platform, while helpful, is not necessarily required\n\n* Strong interpersonal and communication skills\n\n* An inclusive and entrepreneurial mindset: a creative thinker, gets things done, takes failure in stride, derives signal from ambiguity, and champions the team\n\n* An interest in learning biological sciences and digging into new challenges\n\n* A passion for collaborating across disciplines (engineering, design, product, and science) and differing levels of experience, from early career engineers to VPs\n\n\n\n\nWhy you will love interning with us:\n\nOzette is dedicated to building a world-class science and technology team known for its products and services, high standards, employee development and retention. At the heart of great companies are great teams. We strive to give you everything you need to thrive at work and beyond. \n\nOur interns work with experienced mentors who have a wide range of engineering and industry experience. Our goal is to give you an opportunity to work with our seasoned team to develop, test, and deploy new features for our product suite, giving you hands-on relevant industry experience. You will work on some of the most exciting initiatives that bridge AI/ML with hard science, packaged with a brilliant user experience.\n\nWe offer competitive compensation for our internships, hybrid office schedule with many employees opting for full-time remote, honor all 11 federal holidays, plan company-wide respites during Thanksgiving, Xmas and New Years, and offer a 'take what you need' vacation policy.\n\nOur work and teams thrive most when we are diverse and inclusive, so we take equal opportunity seriously. We commit to fostering a respectful, diverse, and inclusive environment where all team members can contribute and develop to their fullest potential. We welcome individuals of all backgrounds, orientations, and identities to join our community. Applications from women and members of underrepresented minority groups are particularly welcomed.\n\nBase hourly range: $25- $40/hr USD\n\nTotal compensation, which may include equity, determined based on experience.  \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Typescript, API, Microsoft 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\nABOUT US:\n\nBraintrust is a user-owned talent network that connects you with great jobs with no fees or membership costs—so you keep 100% of what you earn. \n\n \n\nABOUT THE HIRING PROCESS:\n\nWhen you join Braintrust, you will be invited to a screening process for Braintrust to learn more about your previous work experiences. Once completed, you will have access to the employer for this role and other top companies that seek high-quality talent. Apply to this job to kick off the process. \n\n\n* \nJOB TYPE: Freelance, Contract Position (no agencies/C2C - see notes below)\n\n* \nLOCATION: Remote - Work from anywhere (TimeZone: PST/CIST | Partial overlap)\n\n* \nHOURLY RANGE: Our client is looking to pay $50 – $70/hr\n\n* \nESTIMATED DURATION: 40h/week - Long term\n\n\n\n\nTHE OPPORTUNITY\n\n\nRequirements:\n\n\n\n- Strong proficiency in TypeScript and its latest features.\n\n- Solid experience in developing backend applications using the NestJS framework.\n\n- Familiarity with Mikro-ORM or similar ORM libraries.\n\n- Basic knowledge of deploying and maintaining applications in various environments.\n\n- Understanding of deployment tools and technologies such as Docker, Kubernetes, or similar.\n\n- Proficient understanding of version control systems, preferably Git.\n\n- Experience working with relational databases, such as PostgreSQL, MySQL, or SQLite.\n\n- Familiarity with RESTful API design principles and best practices.\n\n- Strong problem-solving skills and the ability to work effectively in a fast-paced, collaborative environment.\n\n- Excellent communication skills and the ability to articulate technical concepts to both technical and non-technical stakeholders.\n\n- Knowledge of Ethereum Virtual Machine (EVM) and its associated technologies.\n\n- Familiarity with Solana and its ecosystem, including smart contract development and integration.\n\n \n\nResponsibilities:\n\n- Design, develop, and maintain backend systems and APIs using TypeScript and the NestJS framework.\n\n- Collaborate with the team to gather requirements, understand business needs, and translate them into technical solutions.\n\n- Develop and implement efficient data models using Mikro-ORM or similar ORM libraries.\n\n- Ensure smooth deployment and maintenance of applications in various environments, including development, staging, and production.\n\n- Configure, optimize, and manage deployment pipelines using tools such as Docker, Kubernetes, or similar technologies.\n\n- Collaborate with DevOps teams to automate deployment processes and ensure scalability and reliability.\n\n- Monitor application performance, troubleshoot and debug issues, and provide timely resolutions.\n\n- Conduct regular system maintenance tasks, including database backups, updates, and performance optimizations.\n\n- Stay up-to-date with the latest trends and technologies in the TypeScript, NestJS, and Mikro-ORM ecosystems.\n\n- Implement and adhere to coding standards, best practices, and security guidelines.\n\n- Collaborate with the QA team to ensure comprehensive test coverage and resolve any reported issues.\n\n- Document deployment processes, system configurations, and troubleshooting procedures.\n\n- Apply knowledge of Ethereum Virtual Machine (EVM) for blockchain-related development tasks.\n\n- Leverage familiarity with Solana to contribute to the integration and utilization of the Solana blockchain platform within the application architecture.\n\n \n\n\n\n\n\n\nWhat you’ll be working on\n\n\n\nOur client is looking for a skilled and motivated TypeScript Engineer with expertise in NestJS, Mikro-ORM, and basic knowledge of deploying and maintaining applications. Additionally, familiarity with Ethereum Virtual Machine (EVM) and Solana is highly desirable. As a TypeScript Engineer, you will play a critical role in the development, deployment, and ongoing maintenance of their platform. You will collaborate with a cross-functional team of developers, designers, and product managers to ensure the successful delivery of high-quality and scalable solutions.\n\nJoin their dynamic and innovative team to contribute to the development and deployment of cutting-edge applications. Apply now and help shape the future of the platform!\n\n\n\n\n\nApply Now!\n\n \n\nC2C Candidates: This role is not available to C2C candidates working with an agency. If you are a professional contractor who has created an LLC/corp around their consulting practice, this is well aligned with Braintrust and we’d welcome your application.\n\nBraintrust values the multitude of talents and perspectives that a diverse workforce brings. All qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status.\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, DevOps, Typescript, API, Engineer and Backend 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\nCanada

\n\nABOUT NIFTY’S, Inc. \n\nNifty's connects fans to what they love most through NFT-powered collectibles, experiences and rewards. Our innovative NFT platform and easy-to-use interface enable communities to collect and trade digital art and other collectibles from their favorite brands and creators. Leveraging eco-friendly blockchain technology, Nifty’s empowers our partners with a premium, flexible and secure platform to launch their NFTs and make them discoverable by Nifty’s global community. Nifty’s is a fully remote company.\n\n\nEssential Duties and Responsibilities:\n\n\nBuild and test end-to-end Typescript and Node.js (Express) applications both locally and in a shared staging environment.\n\nEnsure security and data protection, and optimize service uptime.\n\nExperience implementing analytics systems architecture.\n\nSupport reliability for code bases across the site.\n\nMaintain and optimize Kubernetes infrastructure in AWS.\n\nMaintain CI/CD infra components.\n\n\n\n\n \n\nRequirements:\n\n\nWeb3 experience preferred\n\nExperience with Terraform preferred\n\nExperience with software containerization, i.e. Docker\n\nExperience with Kubernetes\n\nPostgres/SQL experience\n\nNodeJS/Typescript experience\n\nREST API design experience\n\n5+ years of relevant experience\n\nExcellent written and verbal communication, problem-solving, and critical thinking skills are required.\n\nThrives in a fast paced, collaborative, and remote environment.\n\n\n\n\n \n\nOther things to note: \n\nNifty’s, Inc. strives to be a best-in-class and equal opportunity employer.  All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, gender, gender identity, sexual orientation, age, status as a protected veteran, among other things, or status as a qualified individual with disability. \n\nThis job posting highlights the most critical responsibilities and requirements of the job. Other duties may be assigned as needed.\n\nNifty's, Inc. Privacy Policy can be found here: https://niftys.com/privacy-policy
\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\nWorldwide