Full Stack Engineer

Company Description

Blostem is India’s leading Banking-as-a-Service (BaaS) platform, powering digital Fixed Deposits and next-gen banking products for fintechs, investment apps, and financial institutions. With partnerships across multiple banks and NBFCs, Blostem is building the financial infrastructure that connects customers, digital platforms, and banks through a unified digital gateway.

We’re a fast-growing fintech startup backed at the intersection of banking, technology, and innovation — backed by some of India’s most credible investors - Rainmatters, Mobikwik and AC Ventures.

Know more about us at www.blostem.com

Location : Noida

Experience : 6–8 years

About the Role

We’re looking for a Node.js-first Full Stack Engineer who can architect, build, and optimize the backend services powering Blostem’s fintech infrastructure.

React experience is useful for dashboards, but your primary strength must be backend engineering + AWS + databases.

Key Responsibilities

Backend & System Engineering (Primary focus)

Architect and develop backend services using Node.js (Express / Nest.js).

Build scalable APIs, partner integrations, and distributed services.

Implement workers, queues, schedulers, and async service flows.

Write efficient, modular, testable backend code.

Cloud & Infrastructure (High importance)

Work across AWS services — Lambda, EC2, S3, CloudWatch, API Gateway, IAM.

Optimize services for performance, reliability, and cost.

Handle deployments, monitoring, and logging end-to-end.

Database Engineering (High importance)

Design schemas in SQL (PostgreSQL / MySQL) or NoSQL (Mongo / Dynamo).

Write optimized queries, indexes, caching strategies.

Understand transactions, consistency, and scaling patterns.

Frontend Engineering

Build / maintain React.js dashboards & internal tools.

Integrate backend flows into clean and reliable UI components.

Follow good UX, API, and state management practices.

Required Skills

6–8 years of hands-on full stack experience.

Strong Node.js engineering — architecture, service design, async patterns.

Good AWS fundamentals (Lambda, EC2, S3, IAM, CloudWatch).

Strong database knowledge (SQL or NoSQL).

Experience building & maintaining production-grade systems.

Experience integrating 3rd-party APIs and external systems.

Understanding of authentication, security and error handling.

Nice-to-Have

React.js for dashboards (not the primary role)

TypeScript

Docker / CI / CD pipelines

Fintech / BFSI background

Experience with microservices & event-driven systems

Why Join Blostem?

Backend-heavy engineering role

Build real fintech infrastructure used at national scale

Ownership, autonomy, and a modern stack

Solve meaningful engineering challenges

Direct collaboration with founders + core tech team