Full Stack Engineer

Role Overview

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.

Responsibilities

• 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
• 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
• 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

Requirements

• 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

Skills

• React
• TypeScript
• Java
• Spring Boot
• PostgreSQL