Python Backend Engineer (Microservices & APIs)

GSSTech Group

Key Responsibilities

• Design, develop, and maintain scalable backend services and REST APIs using Python
• Build microservices-based architectures for high-availability systems
• Develop frameworks and reusable components for scalable, observable, and extensible applications
• Handle large-scale data processing and transformation
• Optimise system performance, including I/O operations, concurrency, and latency
• Troubleshoot and resolve issues in distributed production environments
• Ensure implementation of secure coding practices and API security standards
• Collaborate across teams to deliver robust and production-ready systems

Technical Requirements (Must Have)

• 7+ years of experience in Python backend development
• Strong expertise in Python 3.x
• Hands-on experience with Flask, FastAPI, or Django (REST APIs)
• Solid understanding of:
• Asynchronous programming (asyncio, multiprocessing)
• Concurrency and parallel processing
• Experience with microservices architecture
• Strong database experience:
• MongoDB (mandatory)
• PostgreSQL or other relational databases
• Experience in performance tuning, debugging, and monitoring
• Familiarity with CI/CD pipelines and distributed systems troubleshooting

Security & Architecture

• Strong understanding of microservices security
• Hands-on experience with:
• OAuth2
• JWT-based authentication
• API gateways
• Knowledge of encryption, secure API design, and access control mechanisms
• Experience building resilient and fault-tolerant systems

Good to Have

• Experience with Docker and Kubernetes
• Exposure to cloud platforms (AWS/Azure/GCP)
• Experience integrating AI/ML models into backend systems
• Knowledge of load balancing and system scaling strategies
• Exposure to observability tools (logging, monitoring, tracing)

Domain Experience

• Experience in Banking / Financial Services / Fintech preferred
• Understanding of enterprise-grade systems and compliance standards

Soft Skills

• Ability to drive technical decisions across teams
• Strong ownership and accountability
• Effective communication with technical and business stakeholders
• Self-driven and capable of working in high-pressure environments

What This Role Really Demands

This is not a basic Python developer role. You are expected to:

• Build production-grade systems, not just APIs
• Understand system design, scaling, and failures
• Work in complex distributed environments
• Take ownership beyond coding