Job description We are looking for an experienced Sr Full Stack Developer who is passionate about building robust scalable and secure financial applications The ideal candidate will have a deep understanding of end-to-end software development lifecycle SDLC and fintech solutions You will be responsible for designing and implementing high-performance complex business flows ensuring system efficiency and compliance Key Responsibilities Lead the architecture design and development of fintech applications ensuring scalability and performance Break down complex business problems into modular maintainable components Develop test deploy and maintain applications using the MERN stack MongoDB Express js React js Node js Optimize and scale real-time transaction processing systems handling large volumes of financial data Ensure industry-standard coding practices and create comprehensive technical documentation Implement multi-threading and concurrency programming for performance optimization Collaborate with cross-functional teams Product QA DevOps for seamless development and deployment cycles Utilize Test-Driven Development TDD to maintain high code quality and reliability Optimize database queries and structures for performance ensuring low-latency processing Implement secure and compliant fintech solutions adhering to PCI DSS and other regulatory requirements Mentor and lead the development team to maintain high coding standards and performance efficiency Fintech BBPS Experience Proven experience in fintech applications with a focus on digital payments rent processing educational payments and BBPS Bharat Bill Payment System Hands-on experience in integrating payment gateways banking APIs reconciliation processes and escrow-based payment mechanisms Exposure to real-time transaction monitoring fraud prevention and financial data security Understanding of RBI and regulatory compliance related to fintech operations Requirements Bachelor s Master s degree in Computer Science Information Technology or a related field 5 years of full-stack development experience preferably in fintech or financial services Proficiency in JavaScript TypeScript with strong expertise in React js Node js and Express js Strong backend development skills with MongoDB and database optimization techniques Experience with multi-threading concurrency and high-performance data processing Strong understanding of object-oriented design principles and design patterns Expertise in Test-Driven Development TDD and experience with testing frameworks Experience with cloud services AWS GCP or Azure for scalable deployments Strong analytical and problem-solving skills with a focus on building high-quality software Ability to mentor and manage teams ensuring code quality and best practices Preferred Qualifications Experience working with microservices architecture and containerization tools like Docker and Kubernetes Familiarity with event-driven systems and message brokers like RabbitMQ Apache Kafka or AWS SQS Prior involvement in building or scaling fintech platforms or neobanking solutions Working knowledge of CI CD pipelines and DevOps best practices Experience with GraphQL or RESTful API design and integration Exposure to unit testing integration testing and automated test frameworks like Jest Mocha or Cypress Understanding of blockchain-based payment integrations or decentralized finance DeFi concepts is a plus Knowledge of secure coding practices encryption standards and OWASP guidelines Strong understanding of data privacy regulations e g GDPR Indian Data Protection Bill as applicable in fintech environments Contributions to open-source projects or participation in developer communities Why Join Us Work on cutting-edge fintech solutions revolutionizing digital payments and financial transactions A dynamic and fast-paced work setting with a focus on innovation and technology Competitive salary and benefits package Opportunity for professional growth and leadership within the fintech industry Collaborative team culture with exposure to industry-leading payment technologies Job Type Full-time Ability to commute relocate Gachibowli Hyderabad Telangana Reliably commute or planning to relocate before starting work Preferred Application Question s what is your current and expected CTC Are you familiar with BBPS integration or have you contributed to any fintech platforms Experience 5 yeats 3 years Required Location Gachibowli Hyderabad Telangana Required Work Location In person