Juspay is a leading Indian fintech company that powers digital payments for millions of users across the country. Founded in 2012, the company has built a robust stack that handles billions of transactions every month, partnering with major banks, merchants, and payment gateways. With offices in Bangalore, Mumbai, and Delhi, Juspay’s mission is to make online payments fast, secure, and frictionless, leveraging cutting‑edge technologies such as AI‑driven risk management and unified payment APIs. The organization prides itself on a culture of rapid experimentation, open collaboration, and a flat hierarchy that encourages engineers to take ownership early in their careers. The role of a Software Development Engineer – Backend (DEV‑BE01) is central to Juspay’s product roadmap. As a backend engineer, you will be part of a high‑performance team responsible for designing, building, and scaling the services that handle transaction processing, fraud detection, and settlement workflows. You will work closely with product managers, frontend engineers, and data scientists to translate business requirements into reliable, low‑latency micro‑services that run on cloud infrastructure. This position offers a unique opportunity to contribute to a mission‑critical domain where performance, security, and scalability are non‑negotiable. Key Responsibilities: 1. Design, develop, and maintain Java‑based micro‑services that process payment requests in real time. 2. Implement RESTful APIs and gRPC interfaces adhering to industry best practices for security and performance. 3. Write clean, test‑driven code with comprehensive unit and integration tests using JUnit and TestNG. 4. Participate in code reviews, provide constructive feedback, and mentor junior peers. 5. Optimize database queries and work with both SQL (PostgreSQL) and NoSQL (Cassandra, Redis) stores to ensure low latency. 6. Deploy services using Docker containers and orchestrate them on Kubernetes clusters on AWS. 7. Collaborate with the SRE team to monitor, troubleshoot, and improve system reliability and observability. 8. Contribute to architectural discussions, especially around event‑driven designs, eventual consistency, and distributed tracing. 9. Stay updated with emerging technologies in the payments space and propose improvements to the existing stack. 10. Participate actively in agile ceremonies, sprint planning, and retrospectives. Tech Stack: Java 11+, Spring Boot, Microservices, REST/gRPC, PostgreSQL, Cassandra, Redis, Docker, Kubernetes, AWS (ECS/EKS, S3, CloudWatch), Git, CI/CD pipelines (Jenkins/GitHub Actions), Prometheus & Grafana for monitoring. Growth Path: Starting as a junior backend engineer, you can progress to Senior Engineer, Tech Lead, and eventually Architecture or Product Management roles, depending on your interests. Juspay encourages continuous learning through internal tech talks, sponsored certifications, and hackathons focused on fintech innovation. Why Join Juspay? You will work on a product that directly impacts the financial inclusion of millions, get exposure to high‑scale distributed systems, and be mentored by industry veterans who have built payment solutions for global giants. The company offers a competitive salary, performance‑linked bonuses, flexible work‑from‑home policies, and a vibrant learning environment that values curiosity and impact.