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Antoine JanssensAJ

Antoine Janssens

Full-Stack Developer

€700/day
Bruxelles, BE
8-15 years

Average response time: 1 hour

About Antoine

Senior full-stack developer with 10+ years of experience building scalable SaaS platforms and enterprise web applications.

I specialise in .NET, Angular and TypeScript, designing robust REST APIs, backend services and modern web interfaces.

I have built and scaled production systems used by enterprise clients, working across architecture, data modelling and full-stack development.

I enjoy working in product-driven environments, helping teams turn ideas into reliable software from concept to production.

Key expertise:
• .NET / C# backend development
• Angular and TypeScript frontend applications
• REST API design and microservices
• PostgreSQL and relational data modelling
• SaaS platforms and scalable architectures
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Dutch

    Conversational

Can work on-site
Bruxelles (up to 50km)

Experience

  • D-CARBONIZE
    CTO / SENIOR FULL STACK ENGINEER
    ENVIRONMENTAL
    March 2022 - Today (4 years and 5 months)
    Bruxelles, Belgium
    Built and scaled a B2B SaaS platform used by enterprise clients for carbon reporting and ESG compliance.

    Key contributions: Designed and delivered end-to-end product features across APIs, data models and user interfaces Built scalable backend services using .NET (C#) Developed frontend applications using Angular and TypeScript Designed PostgreSQL data models and optimized performance for analytics workloads Integrated enterprise systems and ensured platform scalability and reliability
    Angular .NET Amazon Web Services PostgreSQL REST APIs
  • BDO BELGIUM
    SOFTWARE ENGINEERING ADVISOR
    May 2013 - March 2022 (8 years and 10 months)
    Bruxelles, Belgium
    Key contributions: Built backend services and REST APIs using .NET (C#) and TypeScript-based JavaScript frameworks Developed reporting and analytics tools for business and operational data Designed relational databases and data models and integrated enterprise systems Delivered software solutions in Agile environments, collaborating with product and business teams
    .NET REST APIs SQL Server SSIS Angular
  • COCKPIT-GROUP
    SOFTWARE ENGINEER
    March 2012 - May 2013 (1 year and 2 months)
    Bruxelles, Belgium
    Full-stack development of SaaS and on-premise reporting applications.

    Key contributions: Implemented application modules and reporting features for business and operational data Contributed to backend services and application architecture Provided technical support and troubleshooting for production systems
    .NET SQL Server REST APIs C# Base de données relationnelle

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Education

  • CERTIFICATE — ARTIFICIAL INTELLIGENCE
    EPFC Brussels
    2019
    CERTIFICATE — ARTIFICIAL INTELLIGENCE

Skill set

Categories