Backend Developer ( Node Js/ Python )

Company: Unnatim Payments Private Limited (UnPay) Job Title: Senior Node.js Developer Employment Type: Full-Time Experience: 4+ Years Job Location: Sagardighi, Murshidabad, West Bengal 742226 About UnPay UnPay is a growing fintech organization offering secure and innovative digital payment solutions. We build scalable systems for Connect Banking, merchant payments, payout services, API integrations, and advanced financial workflows. We are looking for strong backend engineers who can help us scale our technology and deliver seamless customer experiences. Role Overview We are seeking a Senior Backend Developer with strong hands-on experience in Node.js and Python. The ideal candidate must be capable of designing, developing, and optimizing backend systems, APIs, and microservices for high-volume fintech operations. You will work closely with product, engineering, and DevOps teams to build secure, scalable, and high-performance platforms. Key Responsibilities Design, develop, and maintain backend services using Node.js and PythonBuild and optimize RESTful & microservice-based APIsDevelop secure, scalable, and high-performance fintech solutionsImplement data structures, queues, and caching (Redis, RabbitMQ, Kafka)Work with databases like MongoDB, PostgreSQL, MySQLOptimize applications for maximum speed, performance, and scalabilityImplement best practices for coding, security, testing, and documentationTroubleshoot, debug, and upgrade existing systemsCollaborate with cross-functional teams to deliver product features on timeEnsure compliance with fintech-specific security and data standardsRequired Skills & Experience 3+ years of backend development experienceStrong proficiency in Node.js and PythonExperience with Express.js / Fastify, Django / Flask (optional but preferred)Strong knowledge of REST APIs, microservices, and application architectureExperience with MongoDB, MySQL, PostgreSQLHands-on experience with Redis, message queues, background jobsFamiliarity with API authentication (JWT, OAuth), encryption, and security standardsWorking knowledge of Git, CI/CD pipelines, DockerExperience working in fintech, payments, or banking integrations is an advantageAbility to write clean, maintainable, and well-documented codeStrong analytical and problem-solving skillsWhy Join UnPay Work in one of Indias fast-growing fintech ecosystemsOpportunity to build high-impact payment systemsCollaborative and growth-oriented work cultureCompetitive salary & performance incentivesModern tech stack and continuous learning environmentJobs Location Unnatim Payments Private Limited (UnPay) Sagardighi, Murshidabad, West Bengal 742226 Note: Candidates should be comfortable working from the Sagardighi, Murshidabad office. Job Type: Full-time Compensation: 20,000.00 - 50,000.00 per month Work Location: In person .