Back End Developer
7 days ago
Back-end developer
Lead the server-side development that powers our web, iOS, and Android apps. You will design secure, scalable APIs, manage data, integrate payments, and support real-time features across e-commerce, social, trivia/gaming, and AI-driven products.
Key Responsibilities
API & Microservice Development
Build and maintain REST (and optional GraphQL) endpoints in
(Express or NestJS).Write Firebase Cloud Functions for real-time logic when appropriate.
Data & Security
Design schemas in Firestore / SQL / NoSQL as required.
- Implement authentication, authorization, and role-based access.
Ensure data privacy, rate limiting, and secure payment handling.
Payment & External Integrations
Integrate payment gateways for one-time, subscription, and coupon flows.
Connect to third-party AI services (chat, vision, etc.) and other external APIs.
Deployment & Monitoring
Automate CI/CD, use Docker or cloud builds, deploy to Firebase, GCP, AWS, or comparable.
Set up logging, alerting, and performance monitoring.
Collaboration & Release Support
Work closely with React and Flutter engineers to define contracts and return structures.
- Participate in app release cycles, ensuring backend readiness and versioning.
- Organise tasks and documentation in
Notion
; attend stand-ups and code reviews.
Required Skills & Experience
- 5+ years
building production back-end systems with
. - Solid experience with
Firebase
(Auth, Firestore, Cloud Functions) or equivalent serverless stacks. - Strong database design skills (document, relational, and caching strategies).
- Proven payment-integration experience (checkout, subscriptions, refunds).
- Deep understanding of RESTful principles, web security, and scalability patterns.
- Experience deploying and operating services in a public cloud environment.
- Familiar with CI/CD pipelines, Git workflows, and automated testing.
- Fluent English communication; comfortable documenting in Notion and explaining architecture to the team.
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