Backend Developer

3 days ago


City Of London, United Kingdom VE3 Full time

OverviewLocation: City Of London, England, United KingdomWe are seeking an experienced Backend Developer to design, develop, and maintain scalable backend services and REST APIs using Python and Node.js. You will work closely with product, front-end, and DevOps teams to deliver high-performance, secure, and reliable systems.ResponsibilitiesBuild RESTful APIs and microservices using Node.js (Express/NestJS) and/or Python (FastAPI/Django/Flask)Design and manage relational and NoSQL databases (PostgreSQL, MongoDB)Implement user authentication and authorization (OAuth2, JWT)Integrate with 3rd-party APIs and external servicesOptimize system performance and monitor API uptimeWrite unit/integration testsCollaborate on DevOps, CI/CD, and deployment workflowsRequired SkillsStrong experience with backend development in Node.js and/or PythonAPI design best practices (versioning, error handling, rate limiting)Database design and querying (SQL, MongoDB, or DynamoDB)Experience with containerization (Docker/Kubernetes) and API documentation (Swagger/OpenAPI)Knowledge of security principles (input validation, CORS, XSS, etc.)Git-based workflows and agile development practicesNice to HaveExperience with GraphQLTask queues and async jobs (Celery, BullMQ, RabbitMQ)Familiarity with cloud platforms (AWS, GCP, Azure)Logging and monitoring (ELK, Prometheus, etc.)Soft SkillsStrong problem-solving mindsetClear documentation and communication skillsTeam player with the ability to work independentlySeniority levelAssociateEmployment typeFull-timeJob functionInformation TechnologyIndustriesIT Services and IT Consulting #J-18808-Ljbffr


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