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Location
In office (Brussels)
Seniority
Staff · 8+ years exp
Employment
Freelance

Confirmed on the employer's own hiring board on Nov 10, 2026. First seen by Alion on Nov 10, 2026.

Overview
Company
Impact
Profile match
EngiFlex is a Belgian engineering and IT staffing and consulting firm, based in Puurs-Sint-Amands, that seconds engineers, developers and validation experts to client companies. It works mainly for pharma and life sciences, energy, industry and IT clients across Flanders, Brussels and Wallonia, covering automation, utilities, safety, product science and pharma project work through secondment, talent sourcing and project delivery. It recruits commissioning and qualification engineers, MES and OT automation specialists, SAP and Dynamics consultants, Java, Python and PHP developers, data engineers and IT project managers, employed or freelance.

Tasks and responsibilities

An IT development team is seeking a full-stack web developer with strong technical expertise and at least 8 years of experience in software development.

You will join an established, long-term software development project as technical lead. In this role, you will provide technical direction while continuing to contribute directly to the development work.

Your main responsibilities will include:

  • Define and maintain the technical architecture of software solutions, with attention to scalability, security, performance and maintainability.
  • Translate business requirements into sound technical designs and suitable technology choices.
  • Contribute directly to software development, especially for complex or critical components.
  • Safeguard code quality and architectural consistency through code reviews, technical standards and development best practices.
  • Guide developers, explain technical decisions and support knowledge sharing and continuous improvement.
  • Identify technical risks, dependencies and technical debt, and drive suitable solutions.
  • Work with the head of service and project managers to support successful project delivery.
  • Participate actively in project teams, contributing to the design, development, testing and delivery of software solutions.

Required technical skills

  • Object-oriented programming, design patterns and n-tier architecture.
  • Backend development with C#, .NET Framework 4.0, 4.5 and 4.8, .NET Core including .NET 10, .NET Core Web API and Entity Framework.
  • Frontend development with HTML, CSS, JavaScript, jQuery, SCSS/SASS, Nuxt.js, Node.js and Vue.js.
  • Database development with MS SQL Server and T-SQL.
  • DevOps and containerisation with Microsoft Azure DevOps, Git, Docker and Kubernetes.
  • Unit testing with NUnit and xUnit.
  • IdentityServer, OpenID Connect and web application security.
  • REST API services.

Soft skills and personal competencies

  • Technical leadership: guide and advise colleagues on technical matters.
  • Communication: explain technical concepts, decisions and standards clearly.
  • Collaboration: work effectively with developers, project managers and designers.
  • Accountability: take ownership and address risks proactively.
  • Continuous learning: develop your technical skills and stay open to new technologies.
  • Knowledge sharing: share expertise and support colleagues in their development.

Languages

French or Dutch, both written and spoken, as well as English, both written and spoken.

Your profile

You have experience as a confirmed full-stack developer and bring at least 8 years of professional software development experience.

Your technical profile includes:

  • Azure DevOps
  • Azure DevOps with Git
  • C# and .NET Core, including .NET 10
  • C# with ASP.NET Core and REST APIs
  • C# with ASP.NET MVC
  • Docker
  • IdentityServer
  • jQuery and JavaScript
  • Kubernetes
  • Nuxt
  • OpenID Connect
  • Vue.js

You can work professionally in French or Dutch and in English, in both written and spoken communication.

Offer

You will be part of a growing Belgian SME where initiative and personal development are encouraged. We will provide you with an enjoyable work environment with fun colleagues. We will work out a career plan with you, with attention and a budget for extra education/certification. You can count on an attractive salary, supplemented with extra-legal benefits, including a company car.

(Freelance is also possible)

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