Lead Backend Developer

BuiltaMart is looking for an experienced Backend Developer to design, build, and maintain the server-side infrastructure powering our mobile (iOS & Android) and web applications. In this role, you will play a key part in architecting scalable microservices, optimizing database performance, managing third-party integrations (payment gateways, logistics, SMS/Email), and ensuring high availability across our core commerce engines.

API & System Development

Design, build, and maintain secure, high-throughput RESTful or GraphQL APIs consumed by our iOS, Android, and web frontends.

• Architect robust backend microservices handling order management, real-time catalog search, pricing engines, user authentication, and loyalty programs.

Database & Performance Engineering

• Manage, optimize, and schema-design relational (e.g., PostgreSQL, MySQL) and non-relational (e.g., Redis, MongoDB) databases.
• Optimize database queries, caching strategies, and data pipelines to ensure low-latency response times during peak shopping hours.

Platform Integrations

• Integrate third-party systems including payment gateways (e.g., Stripe, PayPal), mapping/geocoding services, SMS/push notification services, and ERP/inventory systems.
• Build and manage webhooks and event-driven architectures (e.g., Kafka, RabbitMQ) for asynchronous processing.

Quality, Security & DevOps

• Implement robust unit, integration, and performance testing to ensure system stability and reliability.
• Apply security best practices (OWASP) to protect customer data, payment transactions, and personal information (PII).
• Collaborate with DevOps/Cloud engineers to deploy, monitor, and scale applications on AWS, GCP, or Azure using Docker and Kubernetes.

Qualifications

1. Experience: At least 5 years of software development experience with a strong focus on backend systems for web and mobile applications.
2. People Management: With experience in handling a team of developers, managing workloads and ensuring completion in a timely and accurate manner.
3. Tech Stack: Proficiency in at least one modern backend language/framework (e.g., Node.js/TypeScript, Python/Django/FastAPI, Go, Java/Spring Boot, or C#/.NET Core).
4. Database Knowledge: Strong expertise in SQL databases (PostgreSQL, MySQL) and caching systems (Redis, Memcached).
5. API Design: Proven track record in designing, documenting (OpenAPI/Swagger), and maintaining RESTful or GraphQL APIs at scale.
6. Architecture: Solid understanding of microservices architecture, event-driven design, and design patterns.
7. Cloud & DevOps: Familiarity with cloud platforms (AWS, GCP, or Azure), Docker, CI/CD pipelines, and basic infrastructure management.

What BuiltaMart provides

1. Work from Home Setup / Flexible Work Arrangements
2. Competitive Salary and Allowances
3. HMO and Life Insurance
4. 30 Leave Credits
5. Performance Increase Semi-Annually after Regularization