EY is seeking a Senior Fullstack Engineer to build innovative tax automation tools and AI-integrated platforms across business-critical products. Your mission will be to enhance efficiency, quality, and satisfaction in tax and compliance workflows for thousands of clients. You'll collaborate with engineers, designers, researchers, and product managers in a flat, informal structure across the Nordics.
What You'll Do
- Build end-to-end tax automation features from React frontends to Node.js backends.
- Develop AI-integrated platforms with seamless user experiences and robust data processing.
- Collaborate closely with designers, product managers, and developers, and spar with users and researchers to understand tax workflows in detail.
- Contribute to internal tooling and developer experience, including AI-assisted development workflows, MCP server implementations, and prompt libraries.
- Work across a range of products and problem spaces in the fullstack domain.
What We're Looking For
- Extensive experience with modern React and TypeScript, including hooks, state management, and performance optimization.
- Experience with modern build tools like Vite or webpack, testing frameworks such as Cypress or Playwright, and Kubernetes deployments.
- Proven ability building complex UIs, including multi-step workflows, sophisticated form validation, and responsive interfaces.
- Extensive Node.js experience with Express, async programming, and RESTful API development.
- Strong MongoDB experience with document design, aggregation pipelines, and performance optimization.
- Experience with Python integration using FastAPI, report generation, and GenAI pipeline integration.
- Experience with system integration, including third-party APIs, microservices patterns, and MCP implementations.
Technical Stack
- Frontend: React, TypeScript, Vite, webpack, Cypress, Playwright
- Backend: Node.js, Express, MongoDB
- Additional: Python, FastAPI, Kubernetes
Team & Environment
You will join a flat, informal structure within the EY Tech People team in the Nordics, collaborating cross-functionally with engineers, designers, researchers, and product managers.
Work Mode
This role is local-country and open to candidates based in Denmark, Finland, Sweden, or Norway.
At EY, we promote an inclusive environment and value diversity. We encourage applications from candidates with different backgrounds and strive for a fair recruitment process.
