Senior Node.js Developer

Job Description As a Senior Node.js Developer, you will build high-performance backend services, APIs, event-driven components, and cloud-native microservices — collaborating closely with architects, leads, DevOps, and product teams. This is a high-impact engineering role with real ownership of services that run critical financial and transactional workflows. Role Overview We are looking for a highly skilled, hands-on Senior Node.js Engineer with deep experience in backend development, distributed systems, multi-cloud (AWS/GCP), secure API design, event-driven architectures, and large-scale deployments. You will design and implement microservices, optimize performance, integrate AI components where applicable, and ensure world-class reliability and quality in production. Key Responsibilities Backend & Microservices Development ● Build scalable, secure microservices using Node.js and TypeScript (Express, Nest.js, or similar). ● Implement REST/GraphQL APIs, data access layers, real-time services, and backend integrations. ● Work on high-volume, low-latency systems, optimizing for performance and reliability. ● Implement WebSockets and real-time messaging components for live updates Cloud & Infrastructure ● Develop cloud-native services using AWS (ECS/Lambda/API Gateway/SQS/RDS) or GCP (Cloud Run, Pub/Sub, Firestore, BigQuery). ● Collaborate with DevOps on deployments, IaC, CI/CD improvements, and containerization. Database Design & Optimization ● Work with SQL databases (MySQL/Postgres) and NoSQL (MongoDB, DynamoDB). ● Write optimized queries, design schemas, and build efficient data access patterns. Messaging & Distributed Systems ● Develop services that use Kafka, RabbitMQ, SQS/SNS, Pub/Sub, and other event-driven patterns. ● Ensure idempotency, fault tolerance, message ordering, retries, and resilience. Security & Identity ● Implement secure authentication flows using OAuth2, JWT, SAML, OpenID Connect. ● Handle roles, permissions, session management, and secure API practices. Containers, API Gateways & Deployment ● Work with Docker and deployments on Kubernetes (EKS/GKE). ● Integrate with API gateways (Kong, Apigee, AWS API Gateway) for routing and policies. ● Build services with production reliability in mind (monitoring, logs, metrics, alerts). AI & Automation ● Integrate AI/LLM features such as agentic flows, automation logic, or intelligent decision engines. ● Build services that call OpenAI, Claude, or other AI APIs for scoring, personalization, or ops automation. Quality Engineering ● Write unit, integration, and contract tests with Jest/Mocha/Chai or equivalents. ● Ensure code quality through reviews, static analysis, and best practices. ● Participate in performance and load testing. Collaboration & Delivery ● Work closely with Architects, Tech Leads, Product Managers, QA, and DevOps. ● Break down tasks, estimate effort, and deliver high-quality code on schedule. ●Participate in RFC reviews, grooming sessions, and cross-team discussions. Required Skills & Qualifications Technical Expertise ● 5–10 years of backend development experience with Node.js and at least one major framework. ● Strong experience with REST APIs, GraphQL, microservices, and distributed systems. ● Hands-on experience with AWS or GCP cloud services. ● Proficiency in SQL (MySQL/Postgres) + experience with MongoDB/DynamoDB/Firestore. ● Experience with WebSockets, real-time services, and event-driven models. ● Strong understanding of Kafka / RabbitMQ / SQS / SNS / Pub/Sub. ● Familiarity with Docker, Kubernetes (EKS/GKE), and API gateways. ● Strong grounding in authentication protocols: OAuth2, SAML, JWT, OIDC. ● Understanding of CI/CD pipelines and DevOps collaboration. ● Knowledge of automated testing frameworks. Nice-to-Have ● Experience in fintech, payments, or high-volume transaction domains. ● Exposure to AI integration, LLM APIs, or agentic flows. ● Experience with caching systems (Redis/Memcached). ● Familiarity with frontend frameworks (Next.js/React) for API integration. Soft Skills ● Strong ownership, accountability, and attention to detail. ● Clear communication, ability to collaborate in cross-functional teams. ● Problem-solving mindset and ability to break down complex tasks. ● Commitment to high-quality code and operational excellence.