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Senior Full Stack Web Engineer

Belgium

About us

We're an independent European digital product studio with a strong track record of delivering market-defining strategies and products for enterprises and governments. With about 200 talented people across three countries, premium AI capabilities and a diverse portfolio of international clients, we define, design and ship high-quality digital products, strategies and software. From global cloud-based platforms and large-scale apps to medical devices, banking software and augmented reality experiences. In a nutshell: if it lives and breathes digital, it’s what we do best.

Become a part of our team

At In The Pocket, you join a multidisciplinary team of designers, engineers, strategists and data specialists who care about the work as much as the people they work with. We work in small, autonomous teams that stay close to our clients and their users, and we give everyone the space to take ownership, speak up and grow. You’ll learn from colleagues across our studios, ship products that reach thousands or even millions of people and help shape what digital can do for leading organisations in Europe.

What you’ll do 

We are looking for a Senior Full Stack Web Engineer with a strong affinity for AI. As the ideal candidate you have hands-on experience building and deploying resilient web applications. You have a solid understanding of how the web works and know the difference between progressive enhancement and graceful degradation. This role requires someone who can architect scalable web solutions while integrating intelligent features powered by machine learning or AI models.

  • Prototype and develop scalable and reliable software solutions
  • Enforce quality through test-driven development
  • Ensure maintainability by documenting code and solution
  • Act as a mentor for colleagues and help sharing knowledge
  • Translate business requirements in a robust, performant and secure technical solution.
  • Effectively integrate AI tools (e.g., Claude, Cursor) into the development workflow to optimise code writing, code reviews, and overall productivity.

Who you are 

  • You love building intuitive interfaces with solid UX.
  • You understand the advantages of server side rendering beyond SEO.
  • You have a keen eye for building accessible applications following the WCAG guidelines.
  • The OWASP top 10 sounds familiar to you and you use it to confidently build secure applications.
  • You know how to build a robust and maintainable application that survives the test of time through extensive automated testing.
  • You enjoy exploring new technologies and frameworks through pet projects or research.
  • You have an open mindset: critical eye for quality, curious, eager to learn and not afraid to ask questions.
  • You are a spock for other engineers.
  • Not afraid to take the lead when needed.
  • Proficient in modern front-end development: HTML, CSS and component-based frameworks such as React or Angular.
  • Solid instinct for software architecture and a strong grasp of software engineering best practices: Git, unit testing, code quality, CI/CD, documentation, dependency/version management, and monitoring.
  • Familiar with back-end fundamentals: knowing the difference between a SQL & NoSQL database and understanding how OAuth & JWT tokens can provide a secure authentication experience.
  • You understand common API practices. You know how to utilise OpenAPI or GraphQL specifications to build a typesafe frontend application.
  • Experience with Docker and an interest in cloud platforms like AWS, GCP, or Azure.x
  • Able to debug effectively using logs, stack traces, and error messages.
  • Comfortable with the agility and pace of a growing or young company.
  • Collaborative, proactive, and fluent in English.
  • Bachelor’s in Informatics or Master’s in Computer Science (or equivalent experience).
  • You embrace AI in your day-to-day development, but stay critical about where it genuinely improves the quality of your output.

What we offer  

Joining In The Pocket means becoming part of a team that shapes the future of our clients’ businesses across Europe. Here’s what you can look forward to:

  • You’ll start with a permanent contract in a role that comes with responsibility and the opportunity to make a real impact from day one.
  • We offer a competitive salary that reflects your experience and the value you bring.
  • Our benefits package has you covered with hospitalisation and group insurance, meal vouchers, a phone subscription, and more.
  • You’ll have a mobility budget that lets you decide how to get around, your way. 
  • Life at In The Pocket isn’t just about work, we host team events throughout the year to celebrate, connect, and have fun together.
  • Learning never stops here, so after six months, you’ll receive a dedicated learning and development budget to keep growing your skills and exploring new horizons.

 

 

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When you apply to a job on this site, the personal data contained in your application will be collected by In The Pocket. Your personal data will be processed for the purposes of managing our recruitment related activities, which include setting up and conducting interviews and tests for applicants.

Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by In The Pocket, which are the solicitation, evaluation, and selection of applicants for employment.

Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by In The Pocket to help manage its recruitment and hiring process on Controller’s behalf. Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site.

Your personal data will be retained by In The Pocket. Under the GDPR, you have the right to request access to your personal data, to request that your personal data be rectified or erased, and to request that processing of your personal data be restricted. You also have to right to data portability.

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