Simon Thielebein

Software Engineering - Head Digital Solutions

Berlin, Berlin, Germany

About

Engineering leader with roots in full stack software engineering (C#, C++, .NET, Angular). Experienced in regulated and security sensitive environments. I lead 20+ people across software data SAP and project management while staying close to architecture and technical direction. I manage a €2M budget and ensure predictable delivery.

Experience

  • Qcells Europe (Full-time · 2 yrs 7 mos)
    • Head of Digital Solutions Department
      Apr 2025 - Present · 1 yr 3 mos

      Promoted to lead Qcells Europe’s Digital Solutions department, managing four cross functional teams in Software Engineering Data SAP and IT Project Management. Accountable for strategy budget and delivery of core customer facing and internal platforms while restoring delivery cadence and clarifying team structures after restructuring. • Led a department of up to 23 people and manage a €2M budget • Cut annual costs by €750k by completing internalisation and consolidating vendors • Delivered SAP integrated CRM automation and project workflows, reducing project cycle time by 50%, driving further cross system process automation • Directed core system integration refactoring, retiring vendor middleware and simplifying the landscape • Overseeing GDPR tooling implementation (data requests, anonymisation, deletion) across core systems as part of company wide regulatory initiative

    • Deputy Head of Digital Planning Division
      Nov 2024 - Apr 2025 · 6 mos

      Appointed to lead the division after the CIO’s departure and guided the division through a strategic reorganisation and workforce adjustment. • Defined the structure, roles, and budget for the new department • Led the go-live of a B2C Microsoft Dynamics CRM and migrated 40,000+ legacy records • Initiated and built an inhouse data warehouse, replacing an external vendor • Began internalising key systems and reducing external dependencies through vendor audits and consolidation

    • Software Engineering Team Lead
      Jul 2024 - Apr 2025 · 10 mos

      Built and led an eight developer inhouse software team, introducing modern engineering practices and aligning delivery with business goals. Our team delivered a range of customer facing and internal systems, including: • Cross-platform Flutter app for PV configuration, sales and contract signing • Upgrades to Dynamics 365 CRM, SAP B2B webshop, websites, lead-gen and HR tools • Shared infrastructure and internal hosting for software, data, and business teams. Helped maintain continuity for Azure and development environments during recovery efforts following major cyber incident.

  • Software Developer at GFT Technologies
    Dec 2022 - Jun 2023 · 7 mos

    Brought in to support a critical CRM project in the automotive sector during a high pressure phase. Worked across the Java backend, SQL database, and Angular frontend. Contributed to troubleshooting, stabilization, and delivery using Docker, Maven, Eclipse BIRT, Git, and Jira.

  • Software Developer at WTW
    Jun 2018 - Nov 2022 · 4 yrs 6 mos

    Work on various financial reporting and evaluation software solutions in C#, C++, .Net Framework, .Net Core, SQL, Angular and using Azure DevOps for CI/CD. Lead Developer for the Executive Data Explorer (EDE), a configurable financial data visualization platform; implemented the .NET Core REST API backend while coordinating with an external frontend vendor Contributed to and extended C++ core libraries for financial calculations, including retirement forecasting and stochastic models, with a focus on precision-critical logic and edge cases beyond standard numerical accuracy. Member of the Target Operating Model Group, responsible for developing company standards around agile methodology and driving agile process adoption. Scrum Master for a development Team.

  • Software Developer at COOL CITIES MEDIA
    Jun 2017 - Jan 2018 · 8 mos

    Design and development of mobile iOS/Android apps and websites. - Development of multimedia iOS and Andriod apps with Swift and Xcode. - Design and maintenance of websites and a CMS with HTML/CSS, JavaScript and Django

  • Junior Software Developer at tisoware Gesellschaft für Zeitwirtschaft mbH
    May 2016 - Apr 2017 · 1 yr

    Development around existing functionality of the data management of time recording software in C/C++ and SQL. Creation of "cloud capable" data handling processes for large data sets from excel and csv files.