Backend Engineer – DeFi (Remote)  
Our client is a leading DeFi derivatives platform redefining how users trade on-chain derivatives.
With deep liquidity, instant execution, and up to 25x leverage across 70+ markets, they’re building one of the most advanced decentralized trading experiences on Ethereum, powered by the Synthetix protocol on Optimism for low gas fees and high performance.
As a backend engineer, you’ll play a critical role in building and scaling the systems that power their trading infrastructure.
You’ll work on high-performance backend services, smart contract integrations, and on-chain transaction systems that drive one of the most ambitious products in DeFi. 
What you’ll do:  
- Design and implement scalable, low-latency backend systems for trading, data processing, and risk management 
- Collaborate with frontend, product, and blockchain teams to deliver seamless platform functionality 
- Develop APIs and backend architecture for reliable, high-speed trade execution 
- Maintain top-tier standards of security, performance, and reliability 
- Mentor developers, conduct code reviews, and drive engineering best practices 
What we’re looking for:  
- 4+ years of backend development experience 
- Proven background building scalable, high-performance systems in trading, fintech, or DeFi 
- Strong experience with Node.js, Go, Python, or similar backend languages 
- Familiarity with technologies like MongoDB, Kafka, Redis, GCP, Kubernetes, and CI/CD tools 
- Understanding of microservices architecture and API design 
- Passion for DeFi and building products you’d want to use yourself 
Nice to have:  
- Experience with blockchain or smart contract integrations 
- Understanding of trading algorithms, derivatives, or risk management concepts 
- Contributions to open-source DeFi or blockchain projects 
Why join:  
- Competitive compensation (with the option for crypto payments) 
- Unlimited paid leave and flexible, async remote work 
- Bi-annual in-person team retreats (all expenses covered) 
- Fast-moving, high-impact environment in a rapidly growing DeFi sector