Back End Developer

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