Greater Hamburg Area
I'm a Technical Product Owner and Project Manager with 18+ years at the intersection of business and software engineering. My focus: delivering AI-powered products and enterprise platforms — as the person who owns the product, leads the team, and ships. I've learned that the best product owners aren't the ones with the prettiest roadmaps, but the ones who understand what they're building. So I build myself — not as a developer for hire, but to stay sharp: it means I write better tickets, challenge architecture decisions credibly, and speak engineering fluently. — What I'm doing right now — AI-powered products For one of my clients I built CoachMe, an AI-powered coaching application — from stakeholder briefing through prompt engineering and architecture to production deployment. GDPR-compliant with EU data residency. Several hundred active users. Enterprise platforms As Lead Project Manager at Swiss Automotive Group, I led the group-wide rollout of OneStock OMS — CIO direct mandate, seven-figure budget, team of 10. Before that: business-critical migration to the SCAYLE Commerce Engine for an automotive aftermarket e-commerce player (~€165M revenue) as Product Owner. Personal ventures In parallel, I'm building an AI-powered B2C web app (pre-launch) and run Talentplatz, a recruiting service focused on programmatic job advertising. — What I'm looking for — New freelance mandates or a permanent role as Technical Product Owner / Product Manager / Project Lead — ideally where AI products meet enterprise reality, with responsibility from requirements through go-live. Remote. [email protected] · diekemeyer.com
Conception and end-to-end development of an AI-powered web app in the couples communication space; core feature: synthesis of parallel coaching chat threads. Full solo founder responsibility across product, engineering, marketing and go-to-market. GDPR-compliant with EU data residency. Stack: Astro/Vercel, Supabase (Postgres, Auth, Edge Functions), Resend
Independent technical product owner, project manager and agile coach for AI product development and enterprise platform rollouts. Focus areas: - AI product development end-to-end (concept → prompt engineering → architecture → production deployment) - Enterprise e-commerce and OMS platform rollouts (SCAYLE, OneStock, MACH architecture) - Agile transformation and team coaching for engineering organizations - Post-merger integration and digital transformation programs Selected client mandates listed individually below.
End-to-end conception, design and development of CoachMe — an AI-powered coaching application designed to lower the entry barrier into personal coaching for learners in vocational education. Build from stakeholder briefing to production deployment: - Requirements analysis with executive leadership - Translation of established coaching methodology into AI prompts - Architecture and full implementation - GDPR-compliant solution with EU data residency Project successfully delivered. Solution running in production with several hundred active users.
Recruiting service with a focus on programmatic job advertising. - Responsible for >100 hires p.a. at a cost-per-application significantly below industry benchmark - Built and operated an ATS-driven recruiting process processing thousands of applications per year - Coordinated distributed recruiting teams on the client side - own team managing daily tasks Website: https://talentplatz.de
CIO direct mandate — group-wide rollout of OneStock OMS with a seven-figure project budget. - Replacement of a legacy in-house system at the Global Procurement Center (GPC), which orchestrates procurement for subsidiaries across multiple countries (incl. Autonet, Derendinger, ATP) - Introduction of OneStock as a MACH-certified Distributed Order Management System with multi-stock-location orchestration and a unified workflow model across all group companies - Full budget and people responsibility for the rollout team (up to 10 FTEs: backend engineers, business analysts, solution architects); direct reporting line to the CIO - Successful proof of concept, workflow mapping (status transitions, Line Item Group States) and start of phased go-live integration; structured handover to internal project manager Stack: OneStock OMS, REST APIs/Webhooks, MACH architecture, BPMN, Jira/Confluence, Scrum
Multi-year tech mandate for SAG Digital — ATP Autoteile, the e-commerce subsidiary of the SAG Group (~€165M revenue; group ~€1.5B). Phase 1 — Backend refactoring: Led a Scrum team refactoring a legacy MS SQL backend (catalog, ordering, customer management) of a leading automotive aftermarket player. Phase 2 — SCAYLE rollout: Project lead for the migration to the SCAYLE Commerce Engine (ABOUT YOU, MACH architecture); business-critical replatforming successfully delivered. Built deep expertise in integrating a headless / API-first commerce platform into an existing enterprise system landscape (PIM, OMS, checkout, ERP interfaces). Stack: SCAYLE Commerce Engine, MS SQL Server, REST/API-first integrations, Scrum, Jira/Confluence
Relaunch and business model transformation into a specialized IT staffing firm: ATS selection, rollout of automated recruiting processes, integration of a sales organization. Post-merger integration following the acquisition of the parent company by Amadeus FiRe AG: integration of IT systems into the group's process landscape.