Johnny J. Andersen

Executive Profile & Philosophy

Seasoned engineering leader with extensive experience taking internet platforms from zero to scale, through IPOs, and strategic acquisitions. Hands-on architect and executive leader who bridges high-level business strategy with deep technical execution.

The Craftsmanship Imperative: I believe great software is built by engineers who take deep pride in their craft. I foster engineering cultures anchored in rigorous standards, clean architecture, system resilience, and true product ownership so teams care about every detail they build and ship.

Agentic AI & Modern Systems: Actively leveraging agentic AI architectures, LLM orchestration, and automated reasoning systems. I champion AI superpowers across the engineering lifecycle to amplify team velocity, automate toil, and pioneer intelligent, autonomous products.

Core Competencies & Leadership Pillars

• Engineering Craftsmanship & Culture: Instilling pride of ownership, robust testing, deterministic design, and clean abstractions across distributed engineering teams.
• Agentic AI & Emerging Tech: Deep understanding of autonomous agent workflows, tool calling, context engineering, and practical LLM integration into production systems.
• Scale & High-Throughput Architecture: Proven track record architecting mission-critical platforms, global microservices, scalable databases, and event-driven systems.
• Executive Leadership & Growth: Manager of managers, scaling organizations from founding engineers up to multi-disciplinary teams across engineering, data, design, and product.

Employment History

• 2025 – Present: VP of Engineering, Portchain
  Leading engineering to build cloud-native systems optimizing port-call execution and reducing CO₂ in global container shipping.
  Tech: TypeScript, Node.js, Postgres, Kubernetes, GCP, Microservices, Event Sourcing
• 2019 – 2025: CTO, Tonsser
  Scaled the leading youth football platform to 2M+ players across Europe and the US, managing multi-disciplinary teams across mobile, backend, and data science.
  Tech: Ruby on Rails, Postgres, Kotlin, Swift, GraphQL, Data Science, AWS
• 2013 – 2019: CTO & Product Owner, Autobutler
  Built Europe’s largest auto-repair marketplace across 5 countries (200k monthly visitors, 5,000+ active bidding workshops) leading to strategic acquisition by a global industry leader.
  Tech: Rails, React.js, Postgres, REST APIs, Scalable Cloud Infrastructure
• 2012 – 2013: Freelance Consultant & Developer, Anderki.dk
  Advisory and hands-on systems architecture for startups and high-traffic platforms.
• 2010 – 2012: CTO, Copenhagen Shipping Exchange (CPHSE)
  Built intelligent email parsing, near-real-time position extraction, and large-scale shipping databases.
  Tech: Java, PHP, MySQL, CouchDB, Map/Reduce
• 2006 – 2010: CTO / Head of IT & Development, EuroInvestor.com A/S
  Led development and IT through rapid European expansion and the company's IPO on the Copenhagen Stock Exchange.
• 2005 – 2006: Chief Developer, EuroInvestor.com A/S
• 2000 – 2005: System Developer, EuroInvestor.com A/S
  Joined as first developer; built core financial portals, currency converters, and advertising systems.

Education

• 1998 – 2000: Datamatiker, Næstved Handelsskole (Zealand Business College)
• 1995 – 1998: HHX, Næstved Handelsskole (Zealand Business College)
• 1984 – 1995: High School, Næstved (Denmark)

Languages

• Danish – Mother tongue
• English – Fluent

Projects & Investments

See current side projects and investments on Anderki.dk.