Back End Developer

6 days ago

Najafgarh, Delhi, India Jumbo Full time ₹ 5,00,000 - ₹ 12,00,000 per year

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 
    (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, , 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 

     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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