# Full-Stack Software Engineer (.Net & JavaScript)

> 3P NV · Kontich, Belgium (Hybrid) · Full-time · Posted 2026-03-17

**Workplace:** hybrid

**Department:** TECH

## Description

**About 3P:**

3P is a **software specialist serving the public sector**. As a fast-growing company, 3P has quickly distinguished itself by offering a comprehensive range of solutions specifically tailored to the needs of public sector organizations

We’re looking for a **Full-Stack Software Engineer** who can balance strong technical craftsmanship with architectural thinking, and who’s eager to shape the core foundation of our next-generation products.

You’ll be at the heart of the transformation — designing, developing, and delivering code that moves the mission forward every day.

**What you'll do:**

-   **Design and build core features** of our new web platform from the ground up.
-   **Collaborate with backend, frontend, DevOps, and QA teams** to deliver seamless migration of features and data.
-   Translate complex business logic from the client application into **clean, efficient, scalable web architecture.**
-   Work with product managers and UX designers to create elegant, intuitive interfaces.
-   Contribute to **technical architecture** discussions, and help d**efine standards, tools, and frameworks**.
-   Ensure **code quality**, performance, and **security** across the stack.
-   **Mentor junior developers** and contribute to a culture of technical excellence.
-   Experiment, optimize, and continuously **push for improvement** in both product and process.

## Requirements

-   **5+ years of experience** in full-stack software development.
-   Deep proficiency in modern **JavaScript frameworks** (React, Vue, or Angular) and backend technologies (**.NET & Node.js).**
-   Experience in API design, microservices, and REST or GraphQL architectures.
-   Solid understanding of **cloud** environments (AWS, Azure, or GCP) and **DevOps** practices (CI/CD, containers, etc.).
-   A strong sense of **ownership**, **attention to detail,** and **pride in building high-performing systems.**
-   Excellent **collaboration** skills — able to work closely with designers, PMs, and fellow engineers.
-   You enjoy working in cross-functional teams and are willing to come to our office in Kontich at least one to two days per week.
-   Your **native language is Dutch or French**, and you are also **highly proficient in English.**

**Nice to have:**

-   Experience in migration projects or legacy modernization.
-   Background in data modeling and database optimization (SQL/NoSQL).
-   Familiarity with TypeScript.
-   Interest in performance optimization and front-end architecture.
-   You’ve built something end-to-end — from prototype to production.

## Benefits

**What we offer**

At 3P, you become part of a fast-growing technology company that leverages its expertise to serve the public sector through impactful solutions. Here, your work truly matters: it directly contributes to modernizing and improving public services.

You will work in a dynamic and supportive environment where initiative, autonomy, and team spirit are genuinely encouraged. We value ideas, ownership, and collaboration across teams (product, technology, consulting, sales, etc.).

We offer you:  
• A strategic and impactful role within a rapidly growing company  
• Real opportunities for professional development  
• A strong team culture based on collaboration, trust, and knowledge sharing  
• A challenging position with significant freedom and responsibility  
• An attractive salary aligned with your profile and experience  
• A company car or mobility budget  
• Full equipment (laptop, smartphone)  
• A remote work allowance and flexible working conditions depending on your role  
• Comprehensive social benefits (hospitalization insurance, pension plan, etc.)  
• Additional fringe benefits (meal vouchers, eco vouchers, etc.)  
• Numerous team events and team-building activities to strengthen connections in a friendly atmosphere

## Apply

[Apply at 3P NV](https://apply.workable.com/3pnv/j/F6CD7BBD05/apply)

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