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What working together looks like.

Formats of engagement, by situation.

The simplest start for each situation is a four-week fixed-fee audit. Depth and format are set in the first call.

01 · Agentic AITo the page
Workshop · Fixed fee · half a day

Agentic AI board workshop.

The three questions of the playbook for your company: what agentic AI is for you, how you implement it, how you scale it responsibly. Result: one or two processes worth examining, each with an accountable person and a number.

Book a 30-min call
Freelance · Fixed fee · 4 weeks

Agentic operating model audit, 4 weeks.

The seven decisions before the first agent, for one or two processes: value and stopping rule, ownership, autonomy and safeguards, the current process as the yardstick, evolution over the years, requirements under the AI Act, the CRA and the Machinery Regulation, partner and exit. Result: a board paper with a recommendation, build vs buy, operating model, stopping criteria and cost envelope. Fixed price set after a 60-minute scoping call.

Book a 30-min call
Mandate · 8–12 weeks

Pilot with client-side representation.

Specification, selection of the implementation partner, a pilot measured against the current process, human approval gates where reversibility ends. Result: a pilot signed off or ended, both with numbers, and a contract you can exit in stages. I never bid on the build.

Book a 30-min call
Retainer · 2–8 days a month

Fractional Chief AI Officer.

Further processes, a governance board, the agents’ lifecycle and steering the partners, vendor-neutral. Result: a person in your company runs the operating model.

Book a 30-min call
02 · IoTTo the page
Freelance · Fixed fee · 4 weeks

Architecture and platform audit, 4 weeks.

The six decisions of the foundation for one product or fleet, before launch, a platform migration or a redesign, with the requirements under the CRA and the Data Act; also as tech DD for investors, firmware and OTA included. Result: a written memo with the current state, a timeline of end dates and a 12-month roadmap; a kickoff and a closing workshop. Fixed price set after a 60-minute scoping call.

Book a 30-min call
Mandate · 6–12 weeks

Strategy mandate — connected products.

From the customer problem to the business model, and in a redesign to the new architecture: customer discovery, use cases, who pays for operations, pricing and operating model, requirements for engineering, a phased plan. Ends with a roadmap and a cost envelope that the board and engineering both own.

Book a 30-min call
Interim · 3–9 months

Interim ownership of the fleet.

For manufacturers where the path from the build server to the field belongs to nobody. I take over inventory, end dates across the stack, customer commitments and campaigns, and in a platform migration the migration too, with authority over the device and platform teams, until a person in your company takes the role over with a budget. Documented handover; then the mandate ends.

Book a 30-min call
Option · after the audit

Platform selection and migration with client-side representation.

Specification, selection and sign-off of an IoT or OTA platform, measured against the six decisions; the device side is settled first, and a migration comes with a plan and a rollback path. I never bid on the build.

Book a 30-min call
03 · Go-to-MarketTo the page
Freelance · Fixed fee · 4 weeks

Go-to-market audit, 4 weeks.

The six questions for your company: four weeks of customer interviews, pipeline and deal reviews and a pricing benchmark against comparable platform businesses; also for early startups and as commercial due diligence. Result: a written memo with prioritised recommendations; a kickoff and a closing workshop; optionally a board or investor briefing. Fixed price set after a 60-minute scoping call.

Book a 30-min call
Retainer · 2–8 days a month

Fractional Head of Go-to-Market.

For startups and scale-ups that do not yet need a full-time head of sales. Market and use case, pricing, pipeline review and the first enterprise deals through procurement and security. Result: a sales path your team can repeat, and the point at which a permanent hire pays off.

Book a 30-min call
Interim · 3–9 months

Interim Head of Sales, GTM, Pre-Sales or Product.

For platform companies and industrial-tech scale-ups whose deals stall in enterprise sales. Building and coaching the pre-sales team, C-level champion relationships, demo and POC playbooks, pricing discipline, and for platform companies the product too. Handover to a permanent successor.

Book a 30-min call
For executive & supervisory boards · Retainer

Board advisor.

Quarterly sparring on the sales motion, pricing and growth as well as IoT, AI and platform strategy, for executive boards, supervisory boards and investors. Selective introductions into the OEM, standards and open-source network when they fit the mandate.

Book a 30-min call
For headhunters & recruiters

The answers you’ll need anyway.

So you don’t need a twenty-email back-and-forth. Standard terms that get a mandate moving.

Profile (PDF)Press kitSend mandate brief

Contract

Contract types
Werkvertrag (project-scoped) or freier Dienstvertrag (interim & advisory). No AÜG.
Contracting entity
Sole trader, based in Germany. Direct invoicing, or through an umbrella company if preferred.
Insurance
Professional indemnity and E&O insurance in place. Certificates on request.
NDA
NDA on request before the first call. My template is available; yours works too.

Commercials

Day rate
Senior-interim standard for industrial tech mandates; concrete range after briefing. Fixed pricing on productised audits.
Placement
Standard commission and margin models of established interim placement agencies accepted. Direct engagements equally welcome.
Minimum engagement
Freelance from 5 days · Interim from 3 months · Advisory from 6 months (quarterly cadence). Fixed-fee workshop and audits excepted.
Invoicing
Monthly, net 14. For fixed-scope audits: 50% at kickoff, 50% on handover.
Travel & expenses
Pass-through, against receipts. Travel time over 4 h billed at 50%.

Logistics

Lead time
Typically 2–4 weeks from contract signature. Faster by exception; due diligence by the deal timetable.
On-site / remote
Audit and advisory: 2–3 days on site per week in the first month, then remote-first with a monthly on-site day. Interim: on-site presence agreed per mandate.
Location
Registered office Gevelsberg, Germany; also based in Athens. EU-wide travel and engagements.
Languages
German (native), English (business fluent).

Scope & fit

Preferred roles
VP / Head of IoT, Head of Product, Head of Sales or GTM, Fractional Chief AI Officer, AI Programme Lead, technical board advisor.
Topics
Agentic AI, IoT and connected products, edge / on-device AI, go-to-market.
Industries
Industry and machinery, automotive and mobility, energy and smart grid, smart home and smart building, healthcare, workplace safety.
Not a fit
Pure delivery-vendor roles · AÜG arrangements · Full-time > 12 months · Fundamental ML research · Crypto / Web3.
Backup & coverage
On critical engagements I can bring in a small trusted network of senior freelancers.
These are reference terms, not a negotiating position. Specifics get worked out on the first call.
Before any signature

Three steps before any contract is signed.

Before money changes hands, both sides know how the engagement will be measured.

  1. First call and scoping call

    You describe the situation; I ask the awkward questions.

  2. A written assessment

    Feasibility, timing, cost envelope — in writing. If the assessment does not hold up, the engagement ends here.

    Exit here: no invoice

  3. A fixed-fee audit as entry point

    If you prefer, start with a clearly scoped fixed-fee audit instead of a long-running mandate — agentic operating model, architecture, or go-to-market.

Let’s have a conversation.

The introductory call is confidential, with no obligation.

kai@kaihackbarth.com +49 176 4515 1099

Let’s have a conversation. The introductory call is confidential, with no obligation.