Hands-on CTO for EV-charging and critical B2B platforms.
I help EV-charging operators, SMEs and startups take over, harden or build their critical systems: OCPP, OCPI, monitoring, billing, ERP, architecture and delivery.
Complex projects rarely fail on the technology. They fail when the business, the product and the code stop talking to each other. My job: get them moving in the same direction.
Primary focus: EV-charging operators and CPO / eMSP platforms. Then SMEs and startups with a critical B2B platform. AI, I use as a delivery accelerator — not as a separate promise.
What I know how to solve
Build a complex technical product
Turn a business idea, a regulatory constraint or an operational need into executable architecture, product and roadmap.
Take over an existing platform
Stabilise an architecture, reduce technical debt, clarify flows and get teams shipping again.
Bridge business and engineering
Translate the needs of operations, support, finance and product into features that are genuinely usable.
Structure a team or a transition
Act as interim CTO or Tech Lead, prepare a team handover, recruit, document and secure continuity.
Three specialities, one way of working
E-mobility & energy
CPO and eMSP platforms, OCPP 1.6 and 2.x, OCPI and roaming, pricing, billing, monitoring, payment and IS integration — I master the whole chain, from the charge point to the usage.
Engineering & leadership
From dev to CTO, via tech lead. Architecture (DDD, hexagonal, event-driven), legacy recovery, team structuring — and direct contribution on critical code.
Accelerate delivery with AI
I use agentic AI to ship faster with smaller teams, without sacrificing quality — dev agents, framing, documentation and automation. A delivery multiplier, not a separate activity.
From the charge point to the driver
I master every link in the charging chain: the charge point, the OCPP/OCPI protocols, CPO monitoring, roaming and eMSP-side usage — with proof.
See the full chain →Platforms running in production
EV charging supervision platform
CSMS running in production across several hundred charge points: OCPP, monitoring, device management, charge valorisation, billing and IS integration — available white-label.
eMSP portal & wallet
Accounts, badges, charging history, wallet, credits, subscriptions, billing, card (Stripe) and QR-code payment, and OCPI integration.
evsedb — EVSE equipment registry
Worldwide registry of charging equipment (EVSE): source aggregation, open data, API and normalisation — the data on the charge-point side.
I can help if…
- ✓your platform works, but is becoming hard to evolve;
- ✓your business, billing or monitoring flows are not reliable enough;
- ✓your team ships slower because of technical debt;
- ✓you need to frame an OCPP / OCPI / billing / smart-charging product;
- ✓you need a hands-on CTO without hiring one right away;
- ✓you want to use AI to accelerate delivery without creating chaos.
Four ways to start
Indicative durations — tailored to your context.
Audit & recovery plan
Understand a platform, map the flows, identify the risks and produce an actionable 30/60/90 plan with quick wins.
5 to 10 daysInterim CTO / Tech Lead
Secure technical continuity, make the calls, structure the team, recruit and get delivery moving again.
1 to 3 days/weekProduct & EV-charging architecture framing
Turn a CPO / eMSP / OCPP / OCPI / billing need into a target architecture and an MVP → production path.
Short engagementHands-on delivery
Ship or unblock a critical component in Java, Kotlin or TypeScript, accelerated by agentic AI.
Targeted engagement20+ years building and recovering systems
Independent CTO & Tech Lead
I support SMEs, startups and mobility operators on their critical platforms.
Architect & tech lead
Designing and operating CSMS, eMSP portals and roaming integrations in production.
Software architect
Recovering existing platforms and structuring delivery teams.
Hands-on developer
Over 20 years writing production code, from the critical component to the overall architecture.
A product to build, a platform to take over, a team to structure?
Let's talk. Interim CTO, technical audit, product framing, EV charging expertise or development work.