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Bruno WilhelmBW

Bruno Wilhelm

Tech Lead .NET / Software Architect

€500/day
Strasbourg, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Bruno

Fluent in .NET, Delphi, Windev, UML, and design patterns.
Practices hands-on bug resolution and TDD to prevent recurrence.
And because a picture is worth a thousand words, I effectively model all forms of software architecture, processes, organizations, and of course, data.

Software Architect and Senior .NET Developer with 25 years of experience in designing, modeling (UML/BPMN), and optimizing complex systems for industry and banking. I combine technical expertise (.NET, CI/CD, SQL) with strategic vision to modernize your IT systems, solve critical problems, and accelerate your digital transformation.

🔧 Key Expertise:
Development: .NET (Core), C#, ASP.NET, REST/OpenAPI, WCF, Delphi.
Architecture: Microservices, DDD, CI/CD (Azure DevOps, GitLab), Docker.
Modeling: UML, BPMN, CRUD/RACI matrices.
Optimization: SQL (>99% gains), application performance.
Methodologies: Agile (Scrum, TDD), DevOps, DevSecOps.

🏆 Notable Achievement:
Stabilization of web services for a banking client (CFCAL): Resolution of an "intermittent" bug and SQL optimization reducing processing times by 99%.
Development and deployment of a functional prototype for production optimization.

🎯 Typical Missions:
✅ Refactoring legacy architectures to microservices.
✅ Database and SQL query optimization.
✅ Design of IoT/Industry 4.0 solutions.
✅ DevOps support (CI/CD, automation).
💼 Sectors: Industry, Banking, IT Consulting Firms, Healthcare.

📍 Location: Strasbourg (Grand Est) + Partial remote work/full remote.

I don't just code: I design scalable, secure, and maintainable solutions aligned with your business objectives.

Photo not contractual.
  • French

    Native or bilingual

  • English

    Conversational

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

Experience

  • CFCAL
    .NET Expert – Web Services Design and Modernization
    BANKING AND INSURANCE
    April 2022 - March 2024 (1 year and 11 months)
    Strasbourg, France
    Missions:
    •Technical and organizational support for team members.
    •Stabilization and optimization of existing public web services.
    •Development of a new series of public web services.
    •Development of a web service testing solution for business analysis.
    •Implementation of a strategy for resolving an "intermittent" and resistant bug.
    •Development of a reporting solution via SSIS (Microsoft ETL).
    •Optimization project (code and mainly SQL).
    •Development of microservices.

    Means:
    •Program writing/maintenance.

    Results:
    •Recap of fundamentals (target objectives, code consistency, user experience…).
    •Existing web services made reliable.
    •New services deployed.
    •Testing solution deployed (and bug detection/correction of the SW).
    •Bug resolved.
    •Reporting deployed.
    •Wiki enrichment through software architecture diagrams.
    •SQL Optimization (>99%).
    SQL ASP.NET Core OpenAPI/Swagger SOAP Microservices
  • Soprema
    Software Development Manager
    RAW MATERIALS INDUSTRY
    April 2016 - March 2019 (2 years and 11 months)
    Strasbourg, France
    Development Manager.
    Industry sector.
    Missions:
    •Development of a functional prototype for optimizing product manufacturing.
    •Application maintenance for statistical reporting software.
    •Creation of a group application for inputting/visualizing CO2 consumption.
    •Recovery of R&D project data.

    Means:
    •Analysis of user needs through cross-interviews, collaborative business workshops, and writing of meeting minutes.
    •Business process modeling (BPMN).
    •Formalization of user needs (use-case + user stories).
    •Choice and implementation of architecture.
    •Definition of development/integration processes (weekly cycle).
    •Program writing/maintenance.

    Results:
    •Prototype completed and ready for use by plant managers.
    •BPMN analysis clarified internal processes for the methodology manager, leading to the design of HMIs better suited to business needs.
    •Project data recovered to the great relief of R&D.
    •CO2 management software deployed and used.
    •Software maintained faster and more accurate.

    Technologies used:
    •WinDev, SQL Server, Apache, Java, JSON, REST.
    WINDEV SQL BPMN 2.0 Atlassian JIRA
  • salm
    Designer Developer
    RAW MATERIALS INDUSTRY
    March 2014 - February 2015 (11 months)
    Alsace, France
    Missions:
    •Technical assistance.
    •Software architecture modeling.

    Means:
    •Incident handling.
    •Modeling (state diagram) of software ensemble operation through reverse engineering.
    •Modeling of the production application's software architecture.
    •Modeling of the infrastructure used.

    Results:
    •Allowed technician to go on vacation.
    •The support manager had an accurate model enabling them to react effectively to incidents.
    ASP.NET Delphi SQL WCF

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Education

  • DUT, Business Informatics
    Université Strasbourg 3 Robert Schuman
    1997
    DUT, informatique de gestion
  • CNAM Certification Manager of Data Security, Systems, and Networks UE
    CNAM
    2024
    UE obtenues - Droit, enjeux de sécurité, conformité, (RGPD…) - Analyse de risques des données, réseaux et systèmes (Audit, iso27001…) - Contrôle d’accès et Gestion des Identités Numériques (SSO…) - Analyses de sécurité : vulnérabilités et attaques (pentest…) - Architecture d'Entreprise et Urbanisation des Systèmes d'Information (TOGAF…)

Skill set

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