Backend Infrastructure Engineer

2 weeks ago

Delhi Division, India Jumbo Full time

About the Role:


We’re looking for a mid-level Backend Engineer to join our founding team. You’ll own backend systems, APIs, and infra on AWS. You’ll be solving problems across scalability, fraud detection, and real-time data processing — with huge ownership from day one.


Job Details:


  • Experience: 2-5 Years
  • Work Schedule: 6 days a week
  • Location: On-site, South Delhi


Responsibilities:


  • Design and build scalable APIs and microservices with Node.Js/NestJS (serverless on AWS Lambda)
  • Architect and maintain secure, high-performance backend systems
  • Work with large datasets across Postgres, MongoDB, Redis, and integrate event-driven systems with Kafka
  • Implement and optimize fraud detection & prevention logic to protect platform integrity
  • Set up monitoring and alerting systems for reliability, performance, and security
  • Collaborate with frontend (React Native, Next.Js, Reanimated, Redux Toolkit, React Query) to deliver seamless experiences
  • Ensure compliance with data protection and security best practices
  • Participate in code reviews, testing, and documentation


Requirements:


  • 2–4 years of experience in backend roles (consumer or transactional products)
  • Strong expertise in Node.Js/NestJS and API design (REST/GraphQL)
  • Hands-on experience deploying to AWS (Lambda, RDS, S3, CloudFront, infra automation)
  • Strong working knowledge of Postgres, Redis, MongoDB in production
  • Experience with Kafka or similar messaging systems
  • Understanding of fraud detection algorithms, real-time data processing, and system security (preferred)
  • Solid grasp of data structures, algorithms, and system design
  • Comfortable in a fast-paced startup with ownership of end-to-end delivery

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