Senior Backend Developer

Oister Global ([hidden] is India’s premier Alternative Assets Manager. We combine robust diligence, deep domain expertise, and an extensive network to create high quality private market opportunities for our investors. We are seeking a Senior Backend Developer who will be pivotal in architecting and developing scalable, reliable backend systems from scratch. You will work closely with product managers, designers, and other engineers to build new products, design backend architectures, and ensure high performance and responsiveness of the systems. This role requires strong backend fundamentals, cloud experience, a deep understanding of databases, and a passion for system design and architecture. Key Responsibilities: ● Product Development: Architect, design, develop, test, and deploy new backend products and features from scratch. ● System Design: Take ownership of system design and architecture decisions for new modules, ensuring scalability, reliability, and security. ● API Development: Build efficient and reusable APIs and backend services using Node.js. ● Database Management: Design data models, optimize queries, and manage MongoDB clusters efficiently. ● Cloud Management: Deploy, maintain, and optimize services on AWS, ensuring high availability and performance. ● Best Practices: Maintain coding standards, ensure code reviews, and champion best practices in security, testing, and maintainability. ● Collaboration: Work closely with frontend developers, product managers, QA, and other cross-functional teams to define, design, and ship new features. ● Performance Optimization: Monitor system performance and ensure system uptime and responsiveness. ● Mentorship: Provide guidance and mentorship to junior developers as required. ● Documentation: Maintain thorough documentation of systems, processes, and best practices. Must-Have Qualifications: ● Education: Bachelor’s degree in computer science, Software Engineering, or a related technical field.● Experience: 4–5+ years of hands-on backend development experience. ● Expertise in: Node.js (Express.js, Nest.js or similar frameworks) MongoDB (including indexing, replication, sharding concepts) AWS Services (EC2, S3, Lambda, RDS, API Gateway, CloudWatch, IAM, etc.) Proficient in: System design principles Microservices architecture Event-driven architecture Strong understanding of: RESTful APIs.Authentication and authorization best practices (OAuth, JWT) Experience with: CI/CD pipelines Docker and containerization principles Hands-on experience in: Building scalable, distributed, and fault-tolerant systems Good knowledge of : Logging, monitoring, and debugging distributed applications