Role Overview
Upwork is hiring a Senior Blockchain Developer (Long Term). This is a contract remote role, with the team based in Remote. Part of Upwork's Frontend hiring. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
We are seeking a full stack developer with strong expertise across both frontend and backend. You will build and maintain applications using Next.js and Express.js, while designing and deploying Solidity smart contracts on EVM-compatible blockchains. Responsibilities include integrating Web3 libraries for wallet connectivity, managing off-chain data with MongoDB, and ensuring seamless synchronization between on-chain events and traditional databases. The ideal candidate has proven experience with the full Web3 stack, from smart contract development to production-grade decentralized applications, and thrives in a collaborative, fast-paced environment. If you are passionate about blockchain and building robust dApps, we would love to hear from you.
Frequently Asked Questions
How do I apply for the Senior Blockchain Developer (Long Term) position at Upwork?
Use the Apply button above to submit your application directly to Upwork. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Is the Senior Blockchain Developer (Long Term) role at Upwork remote?
Yes. This is a remote role. The team is based in Remote, but the position itself does not require relocating to that office.
What does a Senior Blockchain Developer (Long Term) at Upwork earn?
Upwork has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Senior Blockchain Developer (Long Term) role at Upwork posted?
This role was posted on April 23, 2026 (51 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Senior Blockchain Developer (Long Term) role at Upwork require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Upwork lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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