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# Senior Software Developer

- **Company:** Ernst & Young
- **Location:** Diegem (Machelen), Belgium (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, JavaScript (Programming Language), .NET Framework, Artificial Intelligence, Applications Architecture, Application Integration Architecture, Microsoft Azure, C Sharp (Programming Language), Cloud Engineering, Code Review, Continuous Integration, Cursor, DevOps, Software Engineering, SQL Databases, Tax Compliance Software, TypeScript, Cloud Platform System, GitHub Copilot, ReactJS, System Availability, Claude Code, Backend, AngularJS, Information Technology, Deployment Automation, Front End Software Development, Restful APIs, Software Version Control
- **Published:** October 22, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=eb4f47b76dec56b7

## About the Role

* You hold a Bachelor's or Master's degree in IT, Computer Science, Software Engineering or a related discipline.
 * You have 3-5 years of experience building and maintaining business-critical applications.
 * You are highly proficient in .NET / C#, REST APIs and modern application architecture.
 * You have experience with front-end technologies such as React, Angular, JavaScript or TypeScript.
 * You are comfortable designing both back-end and front-end solutions.
 * You have strong knowledge of Microsoft Azure, cloud architectures and DevOps practices.
 * You have experience with CI/CD pipelines, source control and automated deployments.
 * You have experience with SQL, data modelling and application integration.
 * You have experience coaching developers, conducting code reviews and raising engineering standards.
 * You value documentation, knowledge transfer and maintainable code.
 * You have a strong business mindset and understand how technology creates measurable value.
 * You are fluent in English. Dutch and/or French are a strong asset.
 * You thrive in fast-moving environments and enjoy taking ownership of complex challenges.
 * Bonus: you're familiar with AI-based coding assistants (e.g. Claude Code, GitHub Copilot, Replit, Cursor) and know how to use them to boost productivity.

## Description

As a Developer within the Tax Technology Office, you will play a pivotal role in building and safeguarding the platforms that power Tax & Law's technology ecosystem. You will help ensure that our business-critical applications remain scalable, secure and maintainable while reducing dependency on individual experts and establishing engineering excellence across the team.

You will combine hands-on development with technical leadership, helping shape architecture decisions, coaching colleagues and driving best practices that enable sustainable growth.

Your Key Responsibilities

 * Design, develop and maintain enterprise-grade applications and platforms.
 * Define and challenge technical standards, coding practices and architectural decisions.
 * Lead complex development initiatives from design through deployment.
 * Coach and mentor junior developers through day-to-day collaboration and code reviews.
 * Ensure critical knowledge is documented and shared across the team.
 * Improve platform reliability, security and maintainability.
 * Drive DevOps, CI/CD and cloud-native engineering practices.
 * Work closely with business stakeholders to balance speed, quality and long-term sustainability.
 * Collaborate with global EY teams and contribute to strategic technology decisions.
 * Explore how AI and emerging technologies can improve software delivery and business outcomes.