SI

Tech Lead - Senior Backend Developer (Python)

Seren IT Servicestopjobs.lk
Nov 12, 2026, 10:00 AM7h ago
ColomboBackendLead (2+ yrs)

About the role

The position is for a Senior Python Backend Developer to lead the development and enhancement of core backend services within a microservices-based platform. The role includes building backend APIs, integrating with internal services, optimizing system performance, and collaborating with the Senior Backend Engineer on feature development and architecture improvements. The candidate will also lead a team of software engineers. Familiarity with UNIX/Linux environments is required. The company, Seren IT Services, is a start-up technology solutions provider headquartered in Washington D.C., specializing in IT products and services for modern businesses.

Must have

  • 2–4 years of professional Python development experience.
  • Strong understanding of REST API development and backend service design.
  • Experience with MySQL or PostgreSQL databases.
  • Hands-on experience with Docker.
  • Familiarity with UNIX/Linux environments.
  • Experience working with AWS services (EC2, S3, RDS).
  • Good understanding of microservices architecture.
  • Ability to write clean, maintainable, and testable code.

Nice to have

  • Experience with FastAPI or Flask.
  • Knowledge of Nginx or reverse-proxy configuration.
  • Basic understanding of message queues (Redis, RabbitMQ).
  • Exposure to CI/CD pipelines.
  • Experience working in agile, fast-paced, or startup environments.

Technologies

  • Agile
  • AWS
  • CI/CD
  • Docker
  • EC2
  • FastAPI
  • Flask
  • Linux
  • Microservices
  • MySQL
  • NGINX
  • PostgreSQL
  • Python
  • RabbitMQ
  • RDS
  • Redis
  • REST
  • S3
  • Unix

Highlights

Applicants are required to submit their CV along with the names and contact information of two non-related referees to tech@serenitservices.com. Only shortlisted candidates will be contacted. Seren IT Services is an equal opportunity employer and does not charge any recruitment or processing fees.