Software Development Engineer Backend

The Juspay interview process typically starts with a timed online test covering aptitude, logical reasoning and coding problems of medium difficulty. Successful candidates face a technical interview that dives deep into data structures, algorithms, and functional programming paradigms used in payment systems, followed by an HR round that assesses cultural fit and communication. Practicing functional programming concepts and system design scenarios helps greatly.

Juspay promotes a high‑performance, collaborative culture where engineers are encouraged to experiment and own end‑to‑end features. The company offers fast career progression, mentorship from industry veterans, and a focus on work‑life balance with flexible timings.

Graduates (B.Tech/B.E/M.Tech) in Computer Science, Information Technology, Electronics & Communication or related streams with a minimum of 60% aggregate (or 6.0 CGPA). Final year students of the 2024‑2025 batch are eligible. No active backlogs at the time of joining. Candidates must have strong programming fundamentals and problem‑solving skills.

Round 1: Online Aptitude & Coding Test → Round 2: Technical Interview (DSA, System Design, Functional Programming concepts) → Round 3: HR Interview (cultural fit, communication).

Juspay is a leading multinational payments technology company founded in 2012 and headquartered in Bangalore. With a daily processing volume of over 300 million transactions and an annualized payment volume exceeding $1 trillion, Juspay powers seamless checkout experiences for more than 500 global enterprises and banks. The company’s engineering excellence is reflected in its 99.999% reliability, robust fraud‑reduction mechanisms, and a global network of 1,200+ payment experts spread across San Francisco, Dublin, São Paulo and Singapore. Juspay’s product suite spans open‑source payment orchestration, tokenization, real‑time payouts, unified analytics and white‑label gateway solutions, making it a critical infrastructure partner for merchants and financial institutions alike. As a Software Development Engineer – Backend, you will join the core engineering team that builds the high‑throughput, low‑latency services powering Juspay’s payment ecosystem. The role focuses on designing and implementing scalable business logic, integrating with diverse payment rails (UPI, card, wallets), and contributing to the company’s functional‑programming‑first culture. You will work closely with product, data science and infrastructure teams to deliver mission‑critical features that handle billions of transactions per year. Key Responsibilities: 1. Design, develop and maintain high‑performance backend services using functional programming paradigms. 2. Implement APIs for payment orchestration, authentication, tokenization and settlement. 3. Collaborate with the SDK team to expose backend capabilities through reusable SDKs and UI components. 4. Optimize existing services for latency, throughput and reliability, targeting 99.999% uptime. 5. Participate in code reviews, enforce coding standards and mentor junior engineers. 6. Work with data‑science teams to expose analytics and AI‑driven insights via backend endpoints. 7. Contribute to the multi‑DC infrastructure DSL and ensure seamless deployment across edge locations. 8. Troubleshoot production incidents, perform root‑cause analysis and drive self‑healing mechanisms. 9. Write comprehensive unit, integration and contract tests to guarantee service correctness. 10. Stay updated with emerging payment standards and incorporate them into the platform. Tech Stack: Scala/F# (functional languages), Java, Kotlin, Spring Boot, gRPC/REST, Kafka, Cassandra, PostgreSQL, Docker, Kubernetes, AWS, Linux, Git, CI/CD pipelines. Growth Path: Starting as an SDE‑Backend, you can progress to Senior Engineer, Lead Engineer, and eventually Architect or Platform Manager, with opportunities to lead cross‑functional product squads and influence the roadmap of Juspay’s payment infrastructure. Why Join Juspay? You will work on cutting‑edge payment technology at massive scale, solve complex reliability challenges, and be part of a culture that values deep technical expertise, rapid learning and ownership. The company offers competitive compensation, stock options, continuous learning programs and a vibrant community of engineers who are passionate about redefining digital payments.