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Backend Engineer

Job in Bristol, Bristol County, BS1, England, UK
Listing for: Calyptus
Full Time position
Listed on 2026-05-30
Job specializations:
  • IT/Tech
    Systems Engineer, Blockchain / Web3, Cloud Computing, Cybersecurity
Job Description & How to Apply Below

Direct message the job poster from Calyptus

Co-Founder @ Calyptus | High Performance Talent at Scale | Blockchain & AI Responsibilities
  • Design and implement scalable backend services using Node.js, Type Script (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, Type Script (NestJS), Postgre

    SQL, AWS, and Redis.
  • Experience with containerization and orchestration using Kubernetes (K8s).
  • Experience with various communication protocols: REST, Web Sockets, 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.
  • Go development experience is a plus.
  • Experience with monitoring and observability tools such as Prometheus and Grafana is a plus.
Preferred Qualifications
  • Previous experience in DeFi or trading platforms.
  • Experience with Subgraph integration and Graph

    QL.
  • Understanding of perpetuals trading and RWA markets.
  • Contributions to open-source projects.
  • Experience with high-frequency trading systems or real-time data processing.
Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Information Technology and Engineering

Industries

Information Services

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