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Open to new opportunities

Hi, I'm Martinus

Software Developer

A full-stack software developer based in Ringsted, Denmark, building web and industrial IoT applications with React, Go, and PostgreSQL.

View my workGet in touch

Expertise

Frontend Development

Building responsive, accessible interfaces with React, Angular, and TypeScript, using Redux Toolkit and modern component libraries.

Backend & Databases

Designing APIs and data models with Go and C#, backed by PostgreSQL and MySQL, with a focus on clean structure and reliability.

Industrial IoT Platforms

Building dashboards and widgets for real-time collection and visualization of machine data on Inuatek's Data Collection Cloud.

Frontend

  • React
  • Angular
  • Redux Toolkit
  • JavaScript
  • TypeScript
  • HTML
  • CSS (SCSS)
  • CapacitorJS
  • AntD
  • Chakra UI
  • Vitest

Backend

  • Go (Golang)
  • C#

Databases

  • PostgreSQL
  • MySQL

Tools

  • Git
  • GitHub

Other

  • UI/UX design
  • Systems understanding
  • Full-stack development

Projects

Recent things I've built, from a browser word processor and an AI assistant to dashboards and a mobile app.

Ark with its welcome document on an A4 page, the formatting toolbar above it and the documents sidebar on the left.

Featured · Frontend

Ark

A word processor that runs in the browser: real A4 pages that paginate as you type, paragraph styles, tables and images, autosave to IndexedDB, .docx import and export, and PDF export.

  • React
  • TypeScript
  • Tiptap
  • Tailwind CSS
  • SmoothUI
  • Vite
Live demoCode
Dashboard Creator showing the sample Sales overview dashboard: four KPI tiles, a revenue and costs line chart and a revenue-by-channel donut chart.

Featured · Frontend

Dashboard Creator

Build dashboards from any JSON or CSV API: connect a data source, then lay out KPI tiles, line, bar and donut charts and tables on a drag-and-resize grid. A server-side proxy handles APIs without CORS.

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • SmoothUI
  • Recharts
  • TanStack Query
Live demoCode

All projects

Frontend

Ark

A word processor that runs in the browser: real A4 pages that paginate as you type, paragraph styles, tables and images, autosave to IndexedDB, .docx import and export, and PDF export.

  • React
  • TypeScript
  • Tiptap
  • Tailwind CSS
  • SmoothUI
  • Vite
Live demoCode

AI

Company Assistant

An internal AI assistant that answers policy questions from company documents and handles HR and IT tasks through MCP tools, always with the signed-in employee's own permissions. Layered guardrails, PII redaction, a semantic cache and an evaluation release gate.

  • Python
  • FastAPI
  • pgvector
  • Redis
  • MCP
  • OAuth
  • Docker
Code

Frontend

Dashboard Creator

Build dashboards from any JSON or CSV API: connect a data source, then lay out KPI tiles, line, bar and donut charts and tables on a drag-and-resize grid. A server-side proxy handles APIs without CORS.

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • SmoothUI
  • Recharts
  • TanStack Query
Live demoCode

Full-Stack

Online Bookstore

A full-stack bookstore MVP — browse and search books, cart and checkout, user auth, order history, and an admin catalog manager. Go API with a React + TypeScript frontend, containerized with Docker Compose.

  • Go
  • React
  • TypeScript
  • PostgreSQL
  • Docker
Code

Frontend

Sand Battery Dashboard

A dashboard for monitoring and controlling sand battery energy storage systems — real-time KPI cards, ECharts visualizations, a dark/light theme, and Excel export.

  • React
  • TypeScript
  • Redux Toolkit
  • ECharts
  • Chakra UI
Code

Mobile

Sports App

A workout and run-tracking app: build routines and programs, log sessions, and track runs with GPS. A Go REST API with MongoDB behind a React Native (Expo) app.

  • Go
  • MongoDB
  • React Native
  • Expo
  • TypeScript
  • Docker
Code

Experience

  1. Inuatek A/S

    May 2022 – June 2026

    Software Developer — Apprenticeship

    Diplomvej 381, 2800 Kongens Lyngby

    • Developed full-stack solutions using React, Go, and PostgreSQL
    • Contributed to the design and further development of Data Collection Cloud (DCC), Inuatek's industrial IoT platform for real-time collection and visualization of machine data for OEMs and factory owners
    • Built dashboards, widgets, and user interfaces for Data Collection Cloud (DCC)
    • Worked with complex data structures and user flows
    • Implemented new features with a focus on usability and structure
    • Used Git for version control and team collaboration

  2. Skanlog A/S

    August 2016 – September 2017

    Sales Consultant

    Smedeland 22, 2600 Albertslund

    • Sales and customer advisory
    • Identified customer needs and provided tailored solutions
    • Gained experience in communication and customer service

Education

  1. ZBC – Zealand Business College

    August 2021 – June 2026

    Data Technician, Specialized in Programming

    Ahorn Alle 5, 4100 Ringsted

    • Focus on software development, databases, and system design
    • Experience with modern technologies and development methods

  2. Zealand – Academy of Technologies and Business

    September 2017 – June 2019

    Multimedia Designer

    Lyngvej 21, 4600 Køge

    • Focus on UI/UX design and frontend development
    • Developed a strong understanding of user experience and digital solutions

Let's get in touch

Open to new opportunities and interesting projects — feel free to reach out.

Martinus.mortensen@gmail.com

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