Full Stack Developer
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Mission Overview
We are seeking a skilled Full Stack Developer / Software Engineer to join our team at Keystone Solutions. This consultancy mission will take place at a client site, where you will help build a modern, data-intensive web platform. You will work across the entire stack, from designing APIs to crafting responsive user interfaces, all within a well-structured and maintainable codebase.
Work Environment
You will be working with a specialized police service responsible for combating organized crime in all its forms, with a strong focus on cybercrime, terrorism, and drug trafficking. This role places you at the heart of technical operations, where you will support specialized units and forensic activities that are essential to the mission.
Tech Stack
Backend (min. 5+ years experience):
- Python with Django and Django REST Framework for building robust, scalable APIs
- PostgreSQL
- Redis
- Celery
Frontend (min. 3+ years experience):
- React
- TypeScript
- Vite
Infrastructure & Tooling (min. 5+ years experience):
- Docker
- GitLab CI/CD
- Pytest
What We're Looking For
- Strong experience with Python and Django
- Solid skills in React and TypeScript, ideally with modern tooling like Vite
- Familiarity with PostgreSQL, including complex queries and data modeling
- Experience with background job processing
- Understanding of REST API design and OpenAPI standards
- Comfortable with Docker and CI/CD workflows
- A mindset that values clean code, testing, and maintainability
Nice to Have
- Experience with data-heavy applications and complex data visualizations
- Pandas experience or willingness to learn
What We Offer
- A clean, well-organized codebase with clear architecture and patterns
- Strong emphasis on code quality
- Modern tech stack
- Full-stack ownership with real impact across both frontend and backend
- A collaborative environment where engineering excellence is valued
Soft Skills
- Communication
- Eye for details
- Team oriented
- Collaborative mindset
- Proactive
- Enjoy digging into challenges
If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.
Duration
03/08/2026 - 31/12/2026 (5 months, full time)
Skills required
- CSS - Level: Junior - Most recent: Any time
- Django - Level: Confirmed - Most recent: Any time
- Django REST framework - Level: Confirmed - Most recent: Any time
- Docker - Level: Confirmed - Most recent: Any time
- PostgreSQL - Level: Confirmed - Most recent: Any timePytest - Level: Confirmed - Most recent: Any time
- Python - Level: Confirmed - Most recent: Any time
- React - Level: Junior - Most recent: Any time
- Redis - Level: Confirmed - Most recent: Any time
- REST API - Level: Confirmed - Most recent: Any time
- TypeScript - Level: Junior - Most recent: Any time
Language requirements
- Dutch - Level: Passive knowledge
- English - Level: Active knowledge
- French - Level: Passive knowledge
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