Backend Developer Jobs in 2026

About Arbitrum Foundation

The 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...

Caleb and Brown, headquartered in Melbourne Australia, has grown in the last nine years to become one of the leading cryptocurrency brokerage firms globally. By fostering a culture of crypto experience married with professional services, we are building the bridge to the traditional financial world....

Uniswap Foundation is looking to hire a Senior Data Analyst (Contract) to join their team. This is a contract position that can be done remotely anywhere in the United States.

Uniswap Foundation - Supporting the Uniswap Protocol & Ecosystem.

We are looking for a QA Automation Engineer to join a team of fierce and fun Serokellers and help ensure the stability, performance, and reliability of a blockchain-based solution.

Responsibilities

• Support all QA activities leading up to the solution launch.
• Ensure functional correctness, p...

🚀 About Flipster

Flipster is a high-performance crypto perpetuals trading platform on a mission to create the most efficient, frictionless, and high-performance trading experience.

Engineered by traders and optimized for trading, Flipster combines zero spreads, instant execution, and capital e...

🚀 About Flipster

Flipster is a high-performance crypto perpetuals trading platform on a mission to create the most efficient, frictionless, and high-performance trading experience.

Engineered by traders and optimized for trading, Flipster combines zero spreads, instant execution, and capital effi...

Over the course of three months at Caleb and Brown, you’ll develop a deep understanding of blockchain technology and its practical applications. This internship will challenge you to think on your feet, adapt to new challenges, and collaborate with a team of experts in a field that’s constantly evol...

About ZetaChain

We’re building something ambitious at ZetaChain: the first universal blockchain that connects everything—Bitcoin, Ethereum, every chain. We’re backed by top investors, live on mainnet, and building the future of blockchain technology. If you’re excited about working on big, meani...

About Extsy

Extsy is revolutionizing the trading experience by placing users at the heart of our platform. We’ve integrated cutting-edge AI and lifestyle apps, with easy-to navigate trading tools, to deliver real-world utility through an intuitive, user-friendly interface. Our mission is to empo...

Anchorage Digital is looking to hire a Junior OTC Trader, US to join their team. This is a full-time position that can be done remotely anywhere in the United States.

Anchorage Digital - The trusted crypto platform for institutions.