Backend Developer (Python, AWS, Real-Time Systems)

Backend Developer (Python, AWS, Real-Time Systems)

Location: Remote (UK)

Type: Full-time

About the Role

We are building a modern, real-time application with a strong backend foundation. We are looking for a Backend Developer who is comfortable designing, building, and scaling APIs and real-time systems using FastAPI, PostgreSQL (Supabase), and AWS.

You will work closely with the frontend team and product leadership to design clean APIs, implement authentication and authorization, handle real-time communication via WebSockets, and ensure the system is secure, scalable, and maintainable.

Responsibilities

• Design, build, and maintain backend services using FastAPI
• Develop and maintain RESTful APIs and WebSocket-based real-time features
• Implement authentication and authorization using JWT
• Design and optimize PostgreSQL (Supabase) database schemas and queries, and perform migrations as various versions
• Handle file storage and retrieval (e.g. S3 or similar)
• Integrate third-party services (e.g. payments, notifications, APIs)
• Write clean, testable, and well-documented code
• Optimize backend performance and scalability
• Collaborate with frontend developers and product stakeholders to engineer solutions
• Debug production issues and improve system reliability
• Participate in code reviews and architectural discussions

Required Skills & Experience

Core Backend

• Strong experience with Python
• Hands-on experience with FastAPI or similar async Python frameworks
• Experience building REST APIs
• Solid understanding of async/await and non-blocking I/O

Databases

• Experience with PostgreSQL
• Data modeling, indexing, and query optimization
• Familiarity with Supabase is a plus

Authentication & Security

• Experience implementing JWT-based authentication
• Understanding of access vs refresh tokens
• Knowledge of backend security best practices

Real-Time Systems

• Experience using WebSockets, knowledge of WebRTC is a plus
• Understanding of real-time connection management and scaling

Cloud & DevOps

• Experience deploying applications on AWS
• Familiarity with services like ECS, EC2, S3, and Auto Scaling
• Experience with Docker
• Understanding of networking fundamentals, environment configuration and secrets management
• Understanding of Load Balancers, Rate Limiters
• Understanding of Cloud Delivery Networks (E.g. CloudFront)

➕ Nice to Have

• Experience with Redis (caching, pub/sub, queues)
• Background job processing (Celery, RQ, SQS, etc.)
• Experience integrating Stripe or other payment systems
• CI/CD pipelines
• Monitoring & logging tools
• Experience working in startups or fast-moving environments

What We’re Looking For

• Someone who thinks beyond “just writing endpoints”
• Strong understanding of system design and scalability
• Comfortable owning backend features end-to-end
• Able to reason about trade-offs and make pragmatic decisions
• Communicates clearly and documents their work

Interview Process (Example)

• Technical interview (FastAPI, async, databases, system design), plus take-home assignment
• Business fit interview
• Final discussion / offer

Why Join Us?

• Work on a modern real-time product
• Use a contemporary backend stack
• Influence architecture decisions early
• Collaborate with a small, driven team
• Opportunity to grow with the product

How to Apply

Send your resume, & GitHub.

Job Type: Full-time

Pay: Rs70,000.00 - Rs120,000.00 per month

Experience:

• Backend Development: 3 years (Required)
• Python development: 1 year (Required)

Language:

• Pashto (Preferred)

Work Location: Remote