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Product Engineer | Customer-Facing, Full-Stack

I build products people use — and ship them on strict deadlines.

Hands-on product engineer with 15+ years of building customer-facing products, 10 of them as a freelancer: I sit with the people who will use the product, turn what they need into software, and ship it. Specialist in rapid buildouts using Next.js, Supabase, and AI-assisted development. Refactored a games-as-a-service platform to serve 10,000+ daily active users.

[ Multi-Provider AI Platform ][ 10k+ DAU ][ Next.js / Supabase ]

Featured Technical Leadership & Solutions

2026 – Present

Sushibelt — AI Workflow & Game-Asset Platform

Sushibelt
// OVERVIEW
–Multi-provider dispatch with node-type routing and fallbacks; DAG execution with async polling of long-running steps and queued-run recovery; token-accurate LLM billing; a reservation-at-dispatch credit economy on Stripe; RLS-enforced multi-tenancy; an AI assistant that proposes graph changes as saved versions rather than overwrites
–The AI layer: pgvector retrieval over library and models, assistant-written team memory the user can edit, a typed tool registry with an audit table, a goal-driven orchestration loop under a credit budget (in testing), and MCP exposure for headless use
// IMPACT METRIC

In invite-only beta testing with real users since late August 2026

The AI layer — pgvector retrieval, assistant memory, a typed tool registry and an MCP server — is built in that dependency order, and goal-driven orchestration on top of them is in testing

// TECH STACK
Next.jsSupabaseAWS LambdaStripepgvectorMCP
2025 – 2026

iVet Platform

Freelance (Eag)
// OVERVIEW
–Built the platform on Next.js and Supabase, replacing eight internal tools with one shared schema
–Consultations run through a fully embedded Whereby integration with custom interactive waiting rooms
–PostgreSQL Row-Level Security enforces data access in the database rather than in application code
// IMPACT METRIC

Margin reporting, previously assembled by hand across tools, became automatic and real-time — one source of truth, and the technical foundation for the client's franchise expansion

// TECH STACK
Next.jsSupabasePostgreSQL RLSWhereby API
June 2024 – April 2025

CTO / Head of Product Development

Certainly // Copenhagen, Denmark
// IMPACT & IMPLEMENTATION
–Led the architectural refactoring of the platform, aiming for a modernized system that could compete with the major players in its market
–I integrated AI and automation to speed up product delivery, focusing on the orchestration of AI agents and LLM workflows
// IMPACT METRIC

Acted as the technical guarantor for the company's partners

// TECH STACK
AI AgentsLLM OrchestrationNode.js

Complete Project History

Sushibelt — AI Workflow & Game-Asset Platform

Sushibelt

Built solo from January 2026: a visual, node-based orchestrator for multi-step AI workflows, with a complete game-asset pipeline from concept image to rigged, animated, PBR-textured model in Unity. Third-party inference providers sit behind one adapter, each run executes as a DAG that recovers when a step stalls, and every step is charged against a credit ledger with per-provider markup.

2026 – Present

iVet Platform

Freelance (Eag)

Scoped and built a veterinary SaaS on my own: one platform replacing eight separate internal tools — booking, staffing, pricing and reporting — in production inside a fixed six-month window. Consultations run through an embedded Whereby integration with custom waiting rooms, and access control is enforced in the database with PostgreSQL Row-Level Security. Agentic development carried the breadth of the build; the domain logic, the pricing model and the access rules were designed by hand.

2025 – 2026

IoT Admin Tool

Freelance (Eag)

Built a performant React Native bridge to the phone's camera hardware for QR scanning.

2019

Mobile AR/Geo POC

Freelance (Eag)

Refactored and standardized the code and performance of an AR/geolocation proof of concept across iOS and Android.

2018

Heroes & Generals (GaaS)

Reto Moto

Refactored a deteriorating front-end codebase for a game with 10,000+ daily active users, while the game stayed live.

2017 – 2018

Educational Kids Games

Freelance (Eag)

Hired on short notice to fix in-app purchases for a kids' game, then stayed on to build a tighter cross-platform UI integration.

2016

Mobile Unity Experience

Freelance (Eag)

Built a small Unity game for iOS and Android in four weeks, with in-app purchases and AdMob integration.

2013

FORCED

BetaDwarf Entertainment

Worked on core gameplay mechanics for FORCED, BetaDwarf's debut title, during its early development.

2011

Professional History

Solo Founder

Sushibelt

Founded Sushibelt in January 2026 and have built and run it alone since: an AI workflow platform for making game assets, in invite-only beta testing with real users since late August 2026.

January 2026 – Present

Product Engineer & Technical Advisor

Freelance (Eag)

Operating through eag.dk, I build customer-facing products and give technical advice to startups and early-stage companies. Since 2011, I have worked on 10 projects, delivering tailored technical solutions that bridge the gap between initial concept and market deployment — and since 2023, increasingly helping non-technical founders make informed technical decisions in early planning and scoping.

2011 – Present

CTO / Head of Product Development

Certainly

Led the technical vision, architecture, and execution of SaaS product development. Hired as lead developer to help refactor and modernize the platform, I moved into the CTO/Head of Product role to stabilize the platform, lead the team, and act as the technical guarantor for the company's partners.

June 2024 – April 2025

Principal Consultant

Knowit

Worked with traditional enterprise clients, and ran AI workshops for Knowit's internal technical team plus a separate one for IT leadership.

January 2024 – May 2024

Founder in Residence

Antler
August 2023 – November 2023

Technical Team Lead / Project Manager

ComplyCloud

Hired as Lead Developer to architect version 2 of the ComplyCloud platform, supporting a team growing from 2 developers to 30. I constructed a modern architecture that provided tools for developers, content managers, and lawyers to engage with the platform more effectively.

February 2020 – January 2023

Frontend Developer

Reto Moto

Hired as a freelancer to build up and support a modern games platform. Focused on building a proper architecture for it, and improved performance and stability dramatically for 10,000+ daily active users.

2017 – 2018

Programmer

BetaDwarf Entertainment

Early-stage developer: helped the team build out concepts and core gameplay features for the start-up's debut title.

2011 – 2012

Education

Master's Degree in Medialogy
Aalborg University
2007 – 2016

Skill Matrix

Development Stack

React
Next.js
TypeScript
Node.js
C#
Unity
React Native (Expo)
SQL
AR Integration

DevOps & Cloud

Supabase (Postgres/Auth)
AWS Amplify
Azure
Docker
CI/CD Pipelines
Row-Level Security (RLS)

Architecture & Strategy

AI-first Development
SaaS Architecture
AI/LLM Integration
Technical Roadmapping
Multi-Tenant Design
Workflow Automation
AI Agent Orchestration
LLM Tooling & MCP
Retrieval (RAG / pgvector)
Multi-Provider AI Integration
Geospatial Systems
Investment Readiness

Leadership & Delivery

Team Scaling (2-30)
Planning & Scoping
Cost Allocation
Product-Market Fit
Rating
Aware
Familiar
Competent
Proficient
Expert

Want a demo before a contract?

I come to you, scope the problem in the room, and leave with something working. Then I polish it from remote.

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