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Hi, I’m

Halvor Ødegård Teigen

Backend developer & Platform Enthusiast

Everything can be learned. That mindset means taking on new problems, doing work I'm proud of, improving along the way, and sharing knowledge with the team.

RoleSenior Software Engineer
Certifications16 certifications
FocusKotlin · Platform · DevEx

Skills & certifications

Technologies I work with

Technologies and engineering practices I use day to day.

I'm mainly a backend developer, but also a platform enthusiast with an interest in cloud infrastructure and developer experience. I contribute across the stack when delivery requires it.

Backend

Reliable services, event-driven systems, and business logic.

  • Kotlin
  • Java
  • Go
  • Ktor
  • Spring Boot
  • Kafka

Cloud & Platform

Technologies I use and explore alongside my backend work.

  • AWS
  • Azure
  • Kubernetes
  • Serverless
  • CI/CD

APIs & Integration

API contracts and system integration, with frontend delivery when needed.

  • OpenAPI
  • REST
  • React
  • TypeScript

Engineering Practice

Security, developer tooling, and quality assurance.

  • Security
  • AI
  • Developer experience
  • Test automation

Experience

Professional experience

  1. 2026–Present

    ZTL

    Senior Software Engineer

    Building secure B2B payment services in Kotlin and evolving their Kubernetes and Azure platform. Also serving as security champion for the team.

    • Kotlin
    • Kubernetes
    • Azure
    • Fintech
    • B2B payments
    • Security
    • React
  2. 2024–2026

    Hafslund

    Senior Software Engineer

    Developed backend services for the Hafslund Flex platform, which enables smart power management and automated multi-market flexibility trading. Later implemented new functionality for Hafslund's power trading systems.

    • Kotlin
    • Go
    • AWS
    • Serverless
    • Energy flexibility
    • Energy markets
    • Power trading
  3. 2024

    Barentswatch

    Full-stack Developer

    Consulting project at Sopra Steria

    Full-stack developer using React and TypeScript on the frontend and Java on the backend.

    • Java
    • React
    • TypeScript
    • OpenAPI
  4. 2022–2024

    Statnett

    Backend Developer & Team Lead

    Consulting project at Sopra Steria

    Part of an enablement team developing tools for implementing automated integration testing on Kubernetes and simulation of data streams in test environments. The solutions are designed to be used by all development teams in Statnett.

    • Java
    • Spring Boot
    • Kafka
    • GitLab CI/CD
    • Ansible
    • Kubernetes
    • Team leadership
  5. 2021–2022

    Statens vegvesen

    Python & Java Developer

    Consulting project at Sopra Steria

    Generation of synthetic test data using Python, as well as implementation of a Java Spring Boot application for test data management.

    • Python
    • Pandas
    • NumPy
    • Java
    • Spring Boot
  6. 2021–2024

    Sopra Steria

    Software Engineer

    IT consultant within software engineering and backend development, with a specialization in DevOps.

  7. 2016–2021

    NTNU

    MSc Cybernetics and Robotics

    A Master's degree in Cybernetics and Robotics with a specialization in autonomous systems.

Projects

Personal projects

Self-hosted infrastructure, developer tooling, and selected applications built for learning and experimentation.

Homelab logo

Homelab Docker

My docker-based self-hosted home infrastructure for learning, experimenting, and running both self-hosted services and other personal projects.

  • Docker
  • Networking
  • Self-hosting
Halvor Teigen logo

This website

My resume and portfolio site, built with Astro and deployed through an automated delivery pipeline.

  • Astro
  • TypeScript
  • TailwindCSS
VoiceBoard logo

VoiceBoard

An experiment in turning spoken input into whiteboard-style output for faster idea capture using AI.

  • AI
  • Kotlin
  • React
  • Supabase
Wine Lottery logo

Wine Lottery Website

A website for hosting wine lotteries with a simple, public-facing presentation layer.

Cert Portal logo

CertPortal

A portal for browsing and tracking certifications, while also reading and leaving reviews.

Wishly logo

Wishly

A wishlist app concept for collecting, organizing, and sharing gift ideas in one place.

  • FlutterFlow
  • Firebase
  • iOS
Homelab logo

Homelab k8s

decommissioned

My earlier Kubernetes-based homelab setup, kept as a reference after being decommissioned.

  • Kubernetes
  • Proxmox