Backend Developer – Serverless & Cloud Infrastructure (LOS Systems)

Experience:
3–5 years | Function: Engineering – Lending / Loan Origination Systems

About the Role
We're looking for a backend engineer to build and maintain services for our Loan Origination System (LOS) — someone equally comfortable writing serverless code and reverse-engineering undocumented legacy systems, while working directly with senior management to deliver solutions fast.

Key Responsibilities
• Build and maintain backend services for LOS workflows: application intake, underwriting, disbursement, and loan lifecycle APIs
• Design and develop backends using both .
NET/C# and Node.js/TypeScript, depending on the service
• Design and deploy serverless applications on AWS (Lambda, API Gateway, Step Functions)
• Reverse-engineer existing modules with little/no documentation and rebuild functional understanding from scratch
• Automate manual processes (reconciliation, reporting, batch jobs) via scripting/serverless functions
• Provision and manage AWS infrastructure (Lambda, RDS, S3, IAM, CloudWatch, SQS/SNS)




• Own deployment of small applications end-to-end, and work directly with senior stakeholders on ambiguous, fast-turnaround requirements Required Skills
• 3–5 years backend/service-side development experience
• Strong hands-on experience in .
NET (latest version) / C# for backend development
• Strong TypeScript, with hands-on experience writing serverless backends on Node.js
• Hands-on AWS

experience:
Lambda, API Gateway, RDS, S3, IAM, CloudWatch, SQS/SNS
• Proven experience reverse-engineering systems and debugging across services/integrations
• Strong analytical skills and comfort working directly with senior management under ambiguity Positive to Have
• LOS/lending domain exposure: credit bureau APIs, KYC/e-KYC, e-NACH, disbursement workflows
• Familiarity with RBI/NBFC compliance norms (KYC Master Direction, data localization)
• PostgreSQL experience; event-driven architecture (SQS/EventBridge)

📌 Backend Developer – Serverless (New Delhi)
🏢 Mufin Green Finance
📍 New Delhi