Full-Stack Engineer

Spring Street; Mumbai; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Spring Street Wealth Management Private Limited, based in Mumbai, seeks a Full-Stack Engineer to build features end to end from the React app to Go services and data. You will own features across the stack in a fast-paced fintech environment.

You'll work with React, TypeScript and Go, design robust APIs with Protobuf/gRPC, model PostgreSQL schemas and deploy on Google Cloud/Kubernetes. You’ll also embrace AI coding tools to ship reliable software.

Qualifications

• 3–5 years of experience building fintech or transaction-heavy products.
• Hands-on React and TypeScript, with state management and real-time updates.
• Strong Go experience, production Protobuf/gRPC knowledge.
• Understanding of domain-driven design and event-driven systems.
• Solid PostgreSQL experience: transactions, migrations, data modeling.

Responsibilities

• Build end-to-end product features from the React frontend to Go services.
• Design clean APIs using Protobuf and Connect-RPC/gRPC with typed clients.
• Model robust PostgreSQL schemas, transactions and migrations.
• Integrate with broking, payments and KYC systems with reliable retries.
• Write tests, deploy and operate services on Google Cloud and Kubernetes.

Skills

React

TypeScript

Go

WebSockets

Protobuf

gRPC

Event-driven design

Domain-driven design

PostgreSQL

Kubernetes

Google Cloud

Education

IIT or equivalent institute preferred

Tools

Protobuf/Connect-RPC

PostgreSQL

GORM

WebSockets

Kubernetes

Docker

Nginx

GitHub Actions

OpenTelemetry

Prometheus

Redis

Job description

# Full-Stack EngineerBuild the platform across the stack.Spring Street is a wealth management firm building an end-to-end global investing platform for resident Indians. We combine deep global markets expertise and quantitative research with thoughtful product design and technology to build intuitive investing experiences.We’re based in Mumbai and backed by Nexus Venture Partners.We’re hiring a Full-Stack Engineer to build features end to end from the React app our clients use to the Go services and data behind it.We use AI coding tools extensively in our development workflow, and expect engineers to use them effectively while taking full ownership of the code they ship.## What you'll do* Build end-to-end product features using **React, TypeScript and Go**.* Build fast, intuitive interfaces with **Tailwind**, real-time data and WebSockets.* Design clean APIs using **Protobuf and Connect-RPC/gRPC**, with strongly typed clients across the stack.* Model our financial domain thoughtfully and build robust **PostgreSQL** schemas, transactions and migrations.* Integrate with broking, payments and KYC systems, making sure retries, failures and idempotency are handled correctly.* Build event-driven workflows and systems that remain reliable as we scale.* Write tests across the stack and take features all the way from development to production.* Deploy and operate services on **Google Cloud and Kubernetes**, and actively monitor what you ship.* Work closely with the founding team to turn evolving product ideas into simple, reliable software.## What we're looking for* 3–5 years of experience building products, ideally in broking, trading, fintech or other transaction-heavy systems.* Strong hands-on experience with **React and TypeScript**, including state management, performance, real-time updates and thoughtful error handling.* Strong **Go** experience, ideally with production experience in Protobuf and Connect-RPC/gRPC.* Practical understanding of **domain-driven design**, transactional outbox patterns and event-driven systems.* Strong understanding of **PostgreSQL** — transactions, locking, migrations and data modelling. You understand why money should be represented using decimals, never floats.* Comfortable working across frontend and backend rather than staying within one layer of the stack.* IIT or an equivalent institute is preferred.## Nice to have* US equities, LRS remittances or GIFT City (IFSC) products.* Product analytics with Mixpanel or Microsoft Clarity, and data visualisation with Recharts or D3.* KYC integrations such as DigiLocker and PAN verification.## Stack| Layer | What we use || --- | --- || Frontend | React, TypeScript, Vite, Tailwind, TanStack Query, Recharts || Backend | Go, Connect-RPC, Protobuf, GORM, WebSockets || Data | PostgreSQL (Cloud SQL), Redis, Cloud Storage || Infrastructure | Google Cloud (GKE), Kubernetes, Docker, Nginx, GitHub Actions || Observability | OpenTelemetry, Prometheus || Product analytics | Mixpanel, Microsoft Clarity || Integrations | Firebase Cloud Messaging, Google Document AI, DigiLocker |Share this roleWhatsAppExperience: 3–5 yearsLocation: Mumbai## Apply for this role+91LPALPAResume \\*By applying you agree to Spring Street storing these details to review your application. See our Privacy policy. Prefer email? Write to [e-mail].