Henrik Hallengren

One person. Whole systems. Built end to end. | Founder, Hallengren’s: commissioned systems & products for regulated work | AI where it earns its place. Never a black box.

Barcelona, Catalonia, Spain

About

I build AI-powered SaaS for work where being roughly right isn't good enough — where a decision has to be correct, traceable, and defensible to a regulator. Each system is purpose-built for one hard regulated problem, then delivered as a product to everyone who has it — bespoke where it matters, productised where it counts. Not consulting hours. You log in, it runs. And it's the opposite of a black box. Multiple agents each handle a defined task, with the reasoning, the source, and the human judgment all on the record. The AI does real work inside the system; it doesn't become the system, and it never makes the call alone. A person always owns the grey zone. Right now that work sits across regulated industries — law, banking, insurance, and beyond. The problems differ; what stays constant is that the answer has to hold up under scrutiny. I've spent nearly 25 years building purpose-built systems to solve real problems — including for some of the world's largest companies. That's the background I bring: senior systems thinking, now aimed at the problems compliance and risk teams actually lose sleep over. If your answers have to survive an audit — and you're tired of AI that can't show its work — let's talk.

Experience

  • Founder & System Architect at Hallengren's
    May 2025 - Present · 1 yr 3 mos

    A one-man maison for complete systems: strategy, design and engineering from a single hand. Commissioned systems are bespoke platforms built end to end for one client, who owns everything from day one: repository, infrastructure, documentation, and the decision trail behind the build. Priced openly. Delivered in weeks to months, not quarters. The flagship product is Hallengren’s Pillar Two, a calibration system for the OECD global minimum tax. It covers 58 jurisdictions with a deterministic engine, every figure traceable to its source, and a human sign-off on every judgment. · One operator across product, architecture, strategy and design, with no handoffs to lose intent in · ISMS aligned to ISO 27001 controls, documented and stated plainly · Customer data stays with the customer Built, not promised.

  • Consultant within branding & digitalisation at Strategic Design France
    Sep 2015 - Present · 10 yrs 11 mos

    I help businesses grow through innovation, the help of design principles and the power of technology. Services: • Audits: brand, digital presence, marketing. • Strategy: brand, business, digital, marketing. • Design: brand, digital services (websites/apps/systems), packaging, editorial and marketing. • Procurement: system development, digital services, print and packaging. • Project management: brand, system development, marketing.

  • CTO & Product Director at Kverneriet
    Jan 2013 - Dec 2025 · 13 yrs

    Transformed traditional restaurant group into digital-first operation. Acted as external CTO/CIO, building custom solutions where standard systems failed. Key Achievements: • 500% Revenue Growth: Led digital pivot during COVID, creating €3.5M/year delivery vertical in 20 weeks • AI Innovation: Built LLM-powered procurement system saving 8 hours/week with real-time pricing insights • Crisis Management: Developed complete gift card ecosystem when POS vendor failed • Strategic Architecture: Implemented API-first strategy enabling rapid, integrated development • Operational Excellence: Automated complex HR calculations and KPI tracking via custom systems Impact: Saved company during pandemic, established sustainable digital revenue streams

  • Global VP of Products & Brands at Candy People AB
    Dec 2015 - Dec 2021 · 6 yrs 1 mo

    Key executive in scaling confectionery company from 169M to 451M SEK (+167%). Built high-velocity product development engine. Key Achievements: • Market Disruption: Conceived and launched ZINQ gum, capturing 15% market share in first quarter • Portfolio Expansion: Created 13 new brands and 70+ products in 5 years • Process Innovation: Established company's first formal product development framework • Strategic Leadership: Led brand portfolio optimization for successful exit Impact: Transformed regional player into international growth story

  • Chief Product Officer / Co-Founder at POGOWO
    Feb 2018 - Apr 2019 · 1 yr 3 mos

    FinTech startup aimed at buy-to-let landlords.