Juspay is a payments technology company building infrastructure for digital transactions at massive scale. This backend role is focused on core payment services, APIs, and distributed systems that power reliable, low-latency payment flows for merchants and partners, with a strong emphasis on functional programming.

• Design, develop, and maintain high-throughput backend services for payment orchestration, UPI integration, and tokenization
• Build and evolve RESTful and gRPC APIs for merchant platforms and banking partners
• Implement error-handling, retry mechanisms, and idempotency for transaction reliability
• Optimize performance through profiling, caching, and efficient data modeling
• Collaborate with cross-functional teams to deliver end-to-end payment solutions
• Monitor production services, respond to incidents, and contribute to post-mortem analyses

• Proficiency in Java, Go, Scala, or similar service-development languages
• Familiarity with functional programming paradigms and libraries
• Experience with RESTful APIs, gRPC, microservices, Kafka, Redis, SQL, and NoSQL databases
• Understanding of Docker, Kubernetes, Linux, and Git
• Strong problem-solving skills and understanding of data structures and algorithms
• Exposure to AWS or GCP is a plus

• Clear career growth trajectory: Junior Backend Engineer → Senior Engineer → System Architect → Engineering Manager/Technical Lead
• Opportunities for continuous learning, including internal tech talks and attendance at conferences
• Experience on high-impact systems processing real money, focusing on reliability engineering and payment security
• Collaborative culture fostering innovation with the freedom to experiment and own end-to-end features