Backend Engineer

About This Role

Calyptus is seeking a Backend Engineer to design and implement scalable backend services, architect Web3 functionalities, and integrate caching solutions. This role involves collaborating with product and design teams to build new features and contribute to documentation and best practices.

Responsibilities

• Design and implement scalable backend services using Node.js, TypeScript (NestJS), and Python.
• Architect and integrate Web3 functionalities throughout the tech stack.
• Design and implement caching solutions using Redis to optimize application performance.
• Build and maintain API integrations between frontend and backend systems.
• Ensure high performance, reliability, and security across all system components.
• Collaborate with the team on technical architecture decisions and implementation strategies.
• Work closely with product and design teams to implement new features.
• Contribute to technical documentation and engineering best practices.

Requirements

• Strong experience with Node.js, TypeScript (NestJS), PostgreSQL, AWS, and Redis.
• Experience with containerization and orchestration using Kubernetes (K8s).
• Experience with various communication protocols: REST, WebSockets, Server-Sent Events (SSE), etc.
• Familiarity with IPFS and distributed storage systems.
• Experience with ethers.js and Web3 libraries for blockchain interaction.
• Experience with microservices architecture.
• Strong understanding of database design and optimization.
• Knowledge of security best practices and performance optimization.
• Experience with automated testing and CI/CD pipelines.

Nice to Have

• Go development experience.
• Experience with monitoring and observability tools such as Prometheus and Grafana.
• Previous experience in DeFi or trading platforms.
• Experience with Subgraph integration and GraphQL.
• Understanding of perpetuals trading and RWA markets.
• Contributions to open-source projects.
• Experience with high-frequency trading systems or real-time data processing.

Skills

* Required skills