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 Experience: At least 5 years of software development experience with a strong focus on backend systems for web and mobile applications. People Management: With experience in handling a team of developers, managing workloads and ensuring completion in a timely and accurate manner. 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). Database Knowledge: Strong expertise in SQL databases (PostgreSQL, MySQL) and caching systems (Redis, Memcached). API Design: Proven track record in designing, documenting (OpenAPI/Swagger), and maintaining RESTful or GraphQL APIs at scale. Architecture: Solid understanding of microservices architecture, event-driven design, and design patterns. Cloud & DevOps: Familiarity with cloud platforms (AWS, GCP, or Azure), Docker, CI/CD pipelines, and basic infrastructure management. What BuiltaMart provides Work from Home Setup / Flexible Work Arrangements Competitive Salary and Allowances HMO and Life Insurance 30 Leave Credits Performance Increase Semi-Annually after Regularization