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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 foundation in AI technologies. The ideal candidate will have hands-on experience building and deploying full stack web applications, along with a solid understanding of modern AI tools, APIs, and frameworks. 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., Copilot, ChatGPT) into the development workflow to optimize code writing, code reviews, and overall productivity.

Who you are 

  • Solid experience with back-end development using Node.js (bonus: C# or Java), MongoDB, SQL, and messaging systems like AMQP.
  • Proficient in front-end technologies: ES6, HTML5, CSS3, and modern frameworks such as React or Angular.
  • Deep understanding of web technologies: HTTP/HTTPS, HTTP/2, WebSockets.
  • Skilled in API development: REST, GraphQL, JSON, OAuth, JWT, Swagger/OpenAPI.
  • Strong grasp of software engineering best practices: Git, unit testing, code quality, CI/CD, documentation, dependency/version management, and monitoring.
  • Solid instinct for software architecture, especially microservices and event-driven design.
  • Experience with Docker and an interest in cloud platforms like AWS, GCP, or Azure.
  • Awareness of security best practices (e.g., not hardcoding secrets).
  • Apply advanced use of AI tools (Copilot, ChatGPT, Cursor and others) to accelerate high-quality software delivery, refine algorithmic solutions, and critically validate AI-generated output.
  • Open to experimenting with AI-powered features in product development and tooling.
  • Curious, eager to learn, and not afraid to ask questions.
  • Enjoy exploring new technologies and frameworks through pet projects or research.
  • 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).
  •  

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 medical insurance, meal vouchers, 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.

At In The Pocket, we use artificial intelligence to support and not replace human judgment. AI can assist our Talent Acquisition  processes by helping to pre-screen applications, analyze and summarize CV's and identify skills gaps.

Human oversight is always applied when inviting candidates to interviews. Our Talent Acquisition team reviews AI-supported insights and make the final decision to ensure relevance, fairness, and thoughtful consideration of each candidate’s unique profile.

Human managers always make the final hiring decisions to ensure fairness, context, and accountability.

AI is a tool to support people, not a substitute for human responsibility.

At In The Pocket, we use artificial intelligence to support  not replace human judgment. AI can assist our Talent Acquisition  processes by helping to pre-screen applications, analyze and summarize CV's and and identify skills gaps.

Human oversight is always applied when inviting candidates to interviews. Our Talent Acquisition team reviews AI-supported insights and make the final decision to ensure relevance, fairness, and thoughtful consideration of each candidate’s unique profile.

Human managers always make the final hiring decisions to ensure fairness, context, and accountability.

AI is a tool to support people not a substitute for human responsibility.

 

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