Back End Developer

We are hiring Senior Backend Developers to build the microservices backend for a large-scale Mobility as a Service (MaaS) platform .Key Responsibilities Design and develop microservices using Node.Js / Java / Python

Build REST APIs and GraphQL endpoints for mobile and web clients

Implement integrations with 20+ external systems (government digital platforms, identity / auth, payments, operators)

Design and implement data models / schemas on PostgreSQL / SQL Server / MongoDB

• Implement authentication & authorization (OAuth 2.0, JWT;

identity integrations where applicable)

Develop payment processing modules and related integrations

Meet performance SLAs (Core APIs ≤ 500ms latency) using caching and optimization

Implement caching strategies and improve throughput for high traffic

participate in code reviews and documentation

Work with DevOps on containerization and deployment (Docker / Kubernetes)

Requirements 6+ years backend development experience

Strong proficiency in Node.Js or Java or Python

Solid experience with microservices architecture and design patterns

Strong API design : REST + GraphQL

Strong database experience : PostgreSQL / SQL Server / MongoDB

Message queues / streaming : RabbitMQ or Kafka

Containers : Docker + Kubernetes

Security best practices (auth, encryption, OWASP)

Cloud exposure (preferably Azure )