Full Stack Engineer

Experience: 2–4 years

Location: Bangalore (in-office)

Stack: React 19, TypeScript, Java 17, Spring Boot, PostgreSQL

Reports to: CTO

Zenalyst builds an enterprise agentic execution layer for the CFO's office — treasury, procure-to-pay and collections automation for large organisations.

You will own features end to end: the React interface a finance controller uses, the Spring Boot services behind it, and the schema underneath. Our users are CFOs, controllers and treasury teams working with real money — the interface has to be fast, precise and trustworthy, and the backend has to be correct.

This is a build role. You will ship to production in your first weeks.

Frontend

• Build and own features in our React 19 SPA — dashboards, reconciliation workflows, transaction views, approval flows
• Design interfaces for dense financial data: large tables, drill-downs, filters, charts (Recharts)
• Handle real-time streaming updates over SSE as agent runs progress
• Own state management, performance and correctness of what the user sees — a wrong number on screen is a production incident here

Backend

• Build Spring Boot services and REST APIs that back those features
• Design and evolve PostgreSQL schemas for treasury domain objects; write Flyway migrations
• Work within our multi-tenant model, where isolation is enforced by physical database connection selected from the verified JWT principal
• Build scheduled and background jobs on JobRunr — sync runs, reconciliation, batch imports
• Integrate with bank and ERP connectors, and handle their failure modes properly

Across the stack

• Take features from spec to production: schema, API, UI, tests, deployment
• Instrument with OpenTelemetry so a trace runs cleanly from browser to database
• Debug production issues wherever they actually are, not just on your preferred side

Essential

• 2–4 years building and shipping full stack applications in production
• Strong React with TypeScript — hooks, state management, component design, performance
• Strong Java and Spring Boot, or equivalent depth in another typed backend language with the appetite to work in Java
• Solid PostgreSQL — schema design, joins, indexing, query tuning
• REST API design, JWT authentication, and a working understanding of HTTP
• Git, code review, and comfort reading code you did not write
• Clear written communication — we document decisions

Strongly preferred

• Experience building data-dense interfaces: tables, grids, charts, filters at scale
• Vite, modern build tooling, and an eye for bundle size and load performance
• Docker, CI/CD (GitHub Actions), Azure or AWS deployment
• Exposure to fintech, banking, ERP or accounting products
• Some design sensibility — you should care whether the screen is usable, not just whether it renders

Nice to have

• Working knowledge of Python — our agent engine is FastAPI
• Any hands-on work with LLM APIs, RAG or agent frameworks
• Streaming interfaces (SSE, WebSockets)
• Redis, background job systems, event-driven processing

Someone who genuinely wants both sides — not a frontend developer who tolerates APIs, or a backend developer who resents CSS. You should be happy owning a feature completely, and equally happy being told the number in column three is wrong and going to find out why.

• Full ownership of features, not tickets
• Real enterprise users and short feedback loops
• Hard problems on both sides: dense financial UI, multi-tenancy, bank integration, deterministic control over AI-driven execution
• Direct access to founders and the CTO
• Competitive fixed compensation plus ESOP

Send your CV to [Confidential Information] with the subject line Full Stack Developer — [Your Name]. Include a GitHub profile, a live project, or something you have built.