Curriculum Vitae

Fractional CTO with 15 years across software architecture, project delivery, and team leadership. I combine deep technical expertise with communication and advisory to turn ideas into shipped products.

Experience
Jun 2023 — PresentHamburg, DE

Fractional CTO

Self-Employed

Consulting, development, and project management for mid-sized companies and startups.

  • Built an internal AI-assisted lead generation product for local SMBs: ingests public company data, extracts structured business information with AI, and qualifies leads through a multi-step pipeline with ICP targeting, enrichment provenance, and GDPR-aware PII handling — TypeScript (Bun), TanStack Start, TailwindCSS, SQLite, PostgreSQL
  • Mobile app for Pool Position GmbH — porting core web app features to mobile — TypeScript, React Native, AWS, Pulumi
  • Digitalization project manager (Oct 2025–Mar 2026) — advisory and delivery for a rental service
  • Data & Analytics market consultations — one-hour analyses for market research and strategy firms
  • Authored and published an open-source AI Agent Skill for online writing — github.com/DonHeidi/online-writing-skills
  • Personal sabbatical and medical rehabilitation from Jun 2023 to Aug 2024
Jan 2023 — May 2023Remote

Senior Agile Project Manager

i22 Digitalagentur GmbH

Project lead and key account management for a major telecom client.

  • Led development of the ordering process for the Magenta Zuhause App
  • Client relationship management and coordination with third-party suppliers
Apr 2021 — Jan 2023Hamburg, DE

Senior Consultant Project Operations

Datadrivers GmbH (now Synvert GmbH)

Technical project leadership, service delivery, and hands-on development across data and cloud migration engagements. Promoted from Consultant Development (Nov 2021).

  • Technical project lead: SAP BW → AWS cloud migration for fashion/e-commerce — introduced agile methods, stakeholder management, scaled team to 8 consultants (7-figure annual budget)
  • Service delivery manager: on-premise → Azure migration for a mobility provider — vendor screening, communication interface, stable delivery despite high C-level turnover
  • Developer: ambassador marketing platform for a festival startup — Next.js introduction, TypeScript, Go, Terraform, AWS
  • Cross-functional exchange via bar camps and community of practice; built the knowledge base for Project Operations
Sep 2019 — Mar 2021Hamburg, DE

Technical Consultant

Jung von Matt AG

Technical advisory and project management for digital products. Promoted from Junior Technical Project Manager (Feb 2020).

  • Whitelabel virtual launch platform for a home appliance manufacturer — JavaScript, Next.js — stable content pipeline, reliable international rollout, technical leadership
  • Product owner: intranet relaunch — concept, planning, cross-agency team steering, stakeholder management — internal pitch and six-figure budget approval, content and tech leadership of 7 people
  • Decentralized IT support to improve satisfaction → +2 points for the worst-case candidate
  • Gap analysis for IT project execution → risk assessment and action plan for future projects
Oct 2018 — Aug 2019Oldenburg, DE

Software Developer (Working Student)

Granny & Smith GmbH

Software development and rapid prototyping for client projects and internal showcases.

  • Showcase for a productivity app and meeting documentation tool for an office electronics manufacturer — TypeScript, Kotlin, Azure, Docker
  • Software prototyping in design sprints — PHP, JavaScript, TypeScript, Java
May 2016 — Sep 2018Oldenburg, DE

Research Assistant

OFFIS — Institute for Information Technology

Development of research software for energy systems at the OFFIS research institute.

  • Control room software for co-simulation of an agent-based energy grid — feasibility analysis, concept and development — Python, Java
  • Forecasting tool for the energy market — development and maintenance of a knowledge topology visualization — Java
Earlier Positions
Jan 2015 — Apr 2016Software Developer (Part-Time)Pool Position GmbH
Jan 2015 — Mar 2016Project Manager / .NET Developer (Part-Time)Syneriax Inh. A. Hruska
Oct 2013 — Jan 2015Software Developer (Part-Time)Goldkalb GmbH
Skills & Expertise
Technologies
TypeScriptTailwindCSSPythonPostgreSQLNext.jsReactAstroTanStack StartVueVert.xDrizzle ORMGitGitHub / GitHub ActionsPulumiAWSDockerPodmanTerraformAgentic AI Skills
Project Management
Stakeholder ManagementRequirements EngineeringDesign SprintsScrumKanbanContinuous DeliveryDesign ThinkingJiraMS 365Google Workspace
Architecture & Design
PlantUMLMVP / MVCComposable Design & ArchitectureService-Oriented ArchitectureMicroservicesRESTfulGraphQLOpenAPI
Languages
GermanNative
EnglishBusiness Fluent
SpanishBasic
Soft Skills
Communication & TeamworkProblem SolvingConflict Resolution & EmpathyInitiative & ProactivityCreativity & Innovation
Education
Apr 2016 — Sep 2019B.Sc. Computer Science (not completed)University of Oldenburg

Incl. Software Project (grade: 1.0), Internet Technologies (grade: 1.0).

Jan 2015Vocational School Diploma (grade: 1.1)BBS Osterholz-Scharmbeck

Scholarship offer for certified management accounting.

Oct 2013 — Jan 2015Apprenticeship: Office Manager (IHK, 87/100)Pool Position GmbH

Completed in 16 months (standard: 36 months).

Oct 2011 — Sep 2013B.Sc. Information Management & Technology (not completed)University of Hildesheim

Incl. Programming Lab (grade: 1.0), Business Administration (grade: 1.0).

Oct 2010 — Sep 2011B.Sc. Economics (not completed)University of Bremen

Incl. Mathematics for Business (grade: 1.8), Business Psychology (grade: 1.3).

Certifications
Current Training & Focus
AWS Cloud PractitionerGoogle UX DesignerAI Engineering
Certified Scrum Product OwnerScrum Alliance · Since Dec 2021
Certified Junior ConsultantJCNetwork e.V. / UMS GmbH · Nov 2019
Community & Volunteering
  • Mentoring a junior developer from Kashmir → software development internships → university enrollment 04/2025 in Berlin
  • Speaker at JS User Group 12/2024
  • Mentoring junior professionals
Advisory Board MemberCARLO Consulting e.V. · May 2020 — Present
Fellow Software DevelopmentJCNetwork e.V. · Oct 2018 — Mar 2020
Head of Quality & Innovation ManagementCARLO Consulting e.V. · Dec 2018 — Apr 2019
Chairman of the BoardCARLO Consulting e.V. · Sep 2017 — Nov 2018
Head of Acquisition & Project ManagementCARLO Consulting e.V. · Sep 2017 — Nov 2019
Voluntary Social YearGemeinde Ritterhude · Aug 2009 — Jul 2010
Hobbies & Interests
Content Creation (Tech, Mental Health & Entrepreneurship)Writing (Sci-Fi/Fantasy)Video GamesReading (Sci-Fi/Fantasy, Tech, Mental Health, Leadership, Biographies)