You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
André LecointreAL

André Lecointre

Senior C# .Net Developer

€500/day
Lille, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About André

Developer for 10 years, my goal is simple: to bring value to my clients.
Adaptable and optimistic, I love taking on the technical and business challenges that are offered to me, and integrating into teams with whom to work in a good mood. I also enjoy participating in the coaching and training of junior developers.
Providing robust and easy-to-maintain code, and making solutions understandable to stakeholders are my priorities.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Lille (up to 30km), Bruxelles (up to 10km), Dunkerque (up to 30km)

Experience

  • CARTERCASH
    Technical Lead
    RETAIL (LARGE RETAILERS)
    June 2025 - Today (1 year)
    Villeneuve-d'Ascq, France
    • - Refactoring of an ERP to a thin client architecture: Participation in the transformation of a legacy thick client into a modern, more performant and accessible web application. Implementation of the various necessary software components (API, business services, feature flipping) to ensure a smooth and secure transition.
    • - Adoption of good development practices: Rigorous application of SOLID principles, dependency injection, and modular architecture to improve code maintainability and robustness. Contribution to code standardization and the definition of technical standards shared by the entire team.
    • - Implementation of tests at all levels: Design and writing of unit, integration, and end-to-end tests to ensure product stability and quality. Implementation of a comprehensive testing strategy integrated into the CI/CD pipeline, strengthening the reliability of deployments.
    C# .NET SQL Software Architecture Microsoft Azure
  • Decathlon Pro
    Senior Software Engineer
    RETAIL (LARGE RETAILERS)
    November 2024 - June 2025 (7 months)
    Lille, France
    • - Maintenance and support of a legacy ERP: Participation in the diagnosis and resolution of incidents on an ERP used by all business teams. Collaboration with internal users to identify problems, prioritize requests, and ensure business continuity.
    • - Improvement and optimization of the existing system: Implementation of functional and technical evolutions to gradually modernize the platform without disrupting critical processes. Analysis of existing code, targeted refactoring, and development of new modules to support company growth.
    • - Teamwork and collaborative methods: Coordination with other software engineers, project managers, and business experts to plan interventions and ensure the quality of deliverables. Active participation in code reviews, documentation, and knowledge sharing within the team.
    C# .NET Software Architecture SQL Microsoft Visual Studio
  • Carter-Cash
    Technical Lead C# .NET
    RETAIL (LARGE RETAILERS)
    June 2023 - November 2024 (1 year and 5 months)
    Villeneuve-d'Ascq, France
    • - Design and implementation of complex technical solutions adapted to the specific needs of the auto discount sector. Definition and maintenance of development standards, selection of appropriate technologies and frameworks, and design of scalable and robust architectures for operational systems.
    • - Planning, management, and monitoring of technical projects in collaboration with business teams. Coordination of development activities, task allocation, and priority management to meet deadlines and deliver high-quality solutions.
    • - Continuous improvement of the development team through rigorous code reviews and active mentoring. Support for developers to improve technical skills, adopt best practices, and solve complex problems.
    • - Development of a tool for financial risk management related to foreign exchange.
    • - Elaboration of an adapted software architecture, respecting SOLID, DRY, and KISS principles.
    • - Full-stack development: KnockoutJs + Typescript front-end, .NET + SQL Server back-end.
    • - Adherence to a rigorous methodology based on Azure DevOps, peer-reviewing, and continuous integration.
    • - Development practices enabling the production of solid, efficient, and maintainable code.
    C# .NET Microsoft Visual Studio SQL Software Architecture

Recommendations

FU
FU
FU
Former user and 2 other people have recommended André

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Biomedical Engineer
    University of Technology of Compiègne
    2004

Skill set

Categories