Senior Software Engineer (Backend)
PayU GPO
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About the Role- As a Senior Software Engineer, you will develop distributed backend services for high-scale, cloud-based solutions in the fintech and payments ecosystem. You will lead by example in technical excellence, own the technical architecture and design of systems, and mentor team members while driving CI/CD and automation culture across teams. This role combines hands-on development (80%) with technical leadership, mentoring (10%), and architectural guidance (10%).
Key Responsibilities- Technical Development & Architecture- Design, develop, and scale distributed backend systems using Node.js, and TypeScript
- Design and implement low-latency, high-availability, and high-performance solutions for large-scale production systems
- Own the technical architecture and design of systems, leading technical discussions and design of new modules
- Design technical solutions based on business and functional requirements
- Develop cutting-edge cloud-based solutions in the fintech area using AWS (EKS, Lambdas, ECS, S3, EB)
- Implement and optimize services following SOLID principles, design patterns, and software engineering best practices
Key Responsibilities- Quality & Best Practices- Maintain high standards of code quality, testing, and pipeline automation using GitLab/Bitbucket/Jenkins
- Ensure well-defined processes (code reviews, static analysis) are in place to maintain coding best practices
- Design and implement quality assurance processes, including unit tests, load testing, and performance optimization
- Review code changes and solutions, providing business justification for tasks
- Guarantee that clear and comprehensive technical documentation is maintained
Key Responsibilities-Leadership & Collaboration- Act as subject matter expert within Business and Technology teams
- Mentor junior and standard engineers, supporting team members in software design and development practices
- Guide the development process, providing application/system business and architecture knowledge
- Collaborate with DevOps,, QA, Product, Architecture, and Business teams to deploy and monitor services
- Debug and troubleshoot complex or critical issues.
Requirements- Experience- 7+ years of professional backend software development experience working on large-scale production systems
- Proven track record of developing and scaling distributed systems in production environments
- Demonstrated experience leading technical design and discussions
Requirements- Technical Expertise- Strong proficiency in Node.js and TypeScript
- Experience with Java and Spring Boot framework - advantage
- Expert knowledge of RESTful APIs and web services design and implementation
- Deep understanding of SQL databases (PostgreSQL, MySQL) and NoSQL databases
- Knowledgeof cloud architecture and services (AWS preferred: EKS, Lambda, ECS, S3, EB)
- Proficiency in Git/Bitbucket, branching strategies, CI/CD pipelines, and containerized deployments
Requirements- Qualifications- Bachelor's degree in Computer Science, Engineering, or related technical field (preferred)
- Excellent English communication skills
- Strong problem-solving and analytical skills
- Ability to learn and implement new technologies in a dynamic environment
- Experience with Agile/Scrum methodologies
Preferred/Advantage- Experience in fintech, payment gateways, or API-driven ecosystems
- Knowledge of PCI-DSS compliance and secure transaction systems
- Understanding of observability practices (logging, tracing, metrics)
- Basic or advanced understanding of React for internal tooling or dashboards
- Experience with Python, Java, or C++ for specific use cases
- Background working with payment processing systems and alternative payment methods (APMs)
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