Software Development Engineer Backend

Juspay’s interview process usually starts with a timed online coding test focusing on data structures, algorithms and problem‑solving speed. Successful candidates move to one or two technical rounds that probe deep understanding of backend systems, micro‑services architecture, and functional programming concepts. The final HR round assesses cultural fit, communication skills and career aspirations. Preparing with system design questions and functional language basics greatly improves chances.

Juspay promotes a collaborative, high‑impact culture where engineers are encouraged to experiment and own end‑to‑end features. The company offers strong growth opportunities, regular learning sessions and a balanced work‑life environment despite the fast‑paced nature of the payments domain.

B.Tech / BE / M.Tech in Computer Science, Information Technology, Electronics or related branches; graduating in 2025 (or equivalent); minimum CGPA 6.5/10 (or 60%); no active backlogs at the time of joining; strong fundamentals in data structures, algorithms and system design; passion for functional programming and large‑scale backend systems.

Round 1: Online coding test (DSA & problem solving) → Round 2: Technical interview (system design, backend concepts, functional programming) → Round 3: HR interview (culture fit, expectations).

Juspay Technologies is a fast‑growing multinational payments technology company founded in 2012. Headquartered in Bangalore, the firm powers over 500 global enterprises and banks, handling more than 300 million daily transactions and exceeding a trillion dollars in annualized payment volume. With a network of 1,200+ payment experts across San Francisco, Dublin, São Paulo and Singapore, Juspay is known for its ultra‑high reliability (99.999% uptime), fraud‑reduction capabilities, and innovative product suite that includes open‑source payment orchestration, tokenisation, risk management and real‑time payouts. The company’s culture emphasizes first‑principles thinking, deep functional programming, and a relentless focus on building scalable, low‑code platforms that empower merchants of all sizes. The role of Software Development Engineer – Backend is positioned at the heart of Juspay’s Centres of Excellence. As a backend engineer you will design, develop and maintain the core business logic that drives payment processing, authentication, UPI integration and API orchestration. You will work closely with SDK, data‑science and infrastructure teams to deliver end‑to‑end solutions that are both performant and highly reliable. The position offers a unique opportunity to contribute to mission‑critical projects from day 0, shaping the next generation of payment frameworks while growing into a system architect role. Key responsibilities: 1. Design and implement high‑throughput, fault‑tolerant micro‑services that handle complex payment workflows. 2. Write concise, functional‑programming‑style code to express intricate business rules. 3. Build and maintain RESTful APIs and SDK integrations for UPI, card, and wallet payments. 4. Collaborate with the UI/UX team to ensure seamless end‑to‑end payment experiences. 5. Optimize performance and latency across distributed systems, targeting sub‑millisecond response times. 6. Contribute to the development of self‑healing infrastructure and automated anomaly detection pipelines. 7. Participate in code reviews, design discussions and architectural decisions. 8. Mentor junior engineers and promote best practices in testing, CI/CD and documentation. 9. Work with data‑science teams to expose analytics and intelligent routing capabilities. 10. Ensure compliance with PCI‑DSS, ISO‑27001 and other security standards. Tech stack includes functional languages such as Scala or Kotlin, Java, Spring Boot, Docker, Kubernetes, AWS/GCP, PostgreSQL, Redis, Kafka, and a proprietary UI framework called Presto. Growth path typically moves from Backend Engineer to Senior Engineer, Lead Engineer and eventually to Platform Architect or Engineering Manager. Joining Juspay means exposure to cutting‑edge payment technology, mentorship from industry veterans, and a fast‑paced environment where your contributions directly impact millions of transactions worldwide.