Profile picture

    Mikkel Kaj Andersen

    Father | Tech Lead

    Technologies & Expertise

    Backend & Frontend Development

    Java logo
    Java
    C# logo
    C#
    Python logo
    Python
    Flutter logo
    Flutter
    TypeScript logo
    TypeScript
    React logo
    React

    Cloud & DevOps

    AWS logo
    AWS
    Docker logo
    Docker
    CI/CD logo
    CI/CD
    Azure (occasional) logo
    Azure (occasional)
    Monitoring logo
    Monitoring

    Predictive Modeling & AI

    Algorithm Design logo
    Algorithm Design
    Predictive Modeling logo
    Predictive Modeling
    LLM and Deep Learning logo
    LLM and Deep Learning
    Mathematical Optimization logo
    Mathematical Optimization
    Statistical Analysis logo
    Statistical Analysis

    Data Engineering

    PostgreSQL logo
    PostgreSQL
    Entity Framework logo
    Entity Framework
    Spring Boot logo
    Spring Boot

    Let's build together ✨

    Hi, I'm a tech enthusiast who's been in the field for almost ten years. I've dabbled in a bit of everything, from competitive programming to machine learning. I love tackling tough problems - my expertise spans competitive programming, advanced algorithms, and machine learning.

    I've had the chance to work on some very interesting projects, with both leading AI teams and developing healthcare optimization solutions. I enjoy diving into both the front-end and back-end, making sure everything works smoothly and looks great.

    Outside of work, I try to keep a good balance. I love spending time with my son, and when I can, I hit the trails for a hike, climb some rocks, or get lost in a good strategy game.

    Morten Nørgaard Larsen

    CTO & Senior Vice President

    Visma Enterprise A/S

    We have engaged his services multiple times on our HRM Analytics platform, and he has consistently impressed us with his exceptional skills and efficiency. Mikkel excels at understanding and aligning with customer requirements, ensuring that their needs are met to the highest standards. Beyond his technical expertise, Mikkel is known for his friendly demeanor and remarkable adaptability, seamlessly integrating into our organization. His ability to collaborate effectively across teams is unmatched, and he has become a valued asset during our projects. I am confident that Mikkel will bring the same dedication and skill to any organization fortunate enough to work with him.
    Martin Sommerseth

    Managing Director

    Resolve

    Mikkel transitioned into a Tech Lead role due to his exceptional technical deliveries and leadership abilities. Mikkel also showcased strong project management skills, particularly in leading the PostNord project to success by balancing technical implementation and aligning different parties. In tech strategy contribution, he actively participated in shaping the central tech strategy at Resolve, demonstrating initiative and foresight in the LLM strategy and its potential role in the AI API strategy. For team collaboration, Mikkel has improved in involving team members early in various initiatives, sharing knowledge, and enabling independent work within the team, though there is still room for growth in this area.
    Stian Vale

    Manager

    Resolve

    Mikkel's work on Automatic Rostering received positive feedback from Postnord. All stakeholders involved are extremely pleased with the deliveries, which were primarily led and implemented by Mikkel. He significantly enhanced the Automatic Rostering product, preparing it for further growth. What was once an "unsure Resolve card" a year ago has now become one of our standout products, thanks to the technological advancements made.
    Jan Strandbakke

    CTO

    Tripletex

    It has been very good to collaborate with Resolve, where their expertise and innovative approach to LLM/GPT technology have been crucial for Tripletex and our AI team in an early phase. With Mikkel's central role, not just as a skilled technical leader but also as an inspiring person, we have succeeded in establishing a robust AI team that continuously drives us forward. Through our collaboration with Resolve, we have not only strengthened our internal competence but also positioned ourselves to lead in the further development of our AI assistant, which plays a critical role in our support of customers, and which in the future will become more and more central in the Tripletex solution. Having Resolve by our side has enriched our understanding and application of groundbreaking AI technology.
    Marie Preisler

    CEO

    Make It Matter

    Det har været en sand fornøjelse at have Mikkel som ekstern IT-konsulent på vores projekt. Han har leveret et solidt og brugervenligt system, som effektivt håndterer omkring 300 ordrer dagligt. Mikkel har været utrolig nem at kommunikere med, og han har hurtigt fanget alle aspekter af vores behov. Gennem hele processen har han guidet os sikkert fra start til slut, hvilket har gjort samarbejdet både nemt og effektivt. Vi er meget tilfredse med den service vi har modtaget fra Mikkel. Han er altid hurtig til at svare og står klar til at hjælpe med stort som småt. Det er en tryghed at vide, at vi kan regne med hans ekspertise, og vi ser frem til fortsat at være kunder hos ham.
    Resolve
    Resolve
    Visma Enterprise
    Visma Enterprise
    Tripletex
    Tripletex
    Netcompany
    Netcompany
    IT-minds
    IT-minds
    Keylane
    Keylane
    Make It Matter
    Make It Matter
    GoDream
    GoDream
    ITU
    IT-University of Copenhagen

    Current Roles

    VISMA

    Aug 2023 - Present

    VISMA Logo

    Current Achievements

    • Tech Lead for workforce planning team and manager of two developers, focusing on:
      • Architecting an advanced Automatic Rostering system addressing the NP-Hard Nurse Scheduling Problem.
      • Role as Service Owner / Security Engineer / Agile Lead, meaning product stability/success is my responsibility.
      • Developing a service to automatically assign employees to shifts, optimizing workforce utilization while adhering to competency requirements and labor regulations.
      • Enabling planners to generate high-quality rosters, significantly reducing manual planning time and improving employee satisfaction.
      • Utilizing advanced algorithms and AI to solve complex scheduling challenges.
    • Led a 4-person team in Norway for Tripletex, the largest self-service accounting SaaS firm in the country, achieving:
      • Building specialized LLM models for financial reporting and data visualization using Chain-of-Thought prompting.
      • Including a custom RAG setup with vector search and re-ranking, handling over 100,000 customer queries with more than 80% accuracy.

    Algorithm & Technical Excellence

    • Worked on a heuristic based optimization solver to generate optimal work rosters for hospitals and elderly care, requiring deep understanding of object oriented design, memory management, and performance optimization in Java/Python.
    • Implemented scoring rankers, candidate selection algorithms, constraints and oversee the architectural design of the algorithm itself.
    • Implemented 12 different MIP solvers with Google OR tools, that can be used to quickly identify feasibility of the problem.
    • Designed and deployed serverless infrastructure using CloudFormation, Docker, S3, and Lambda.
    Java
    Python
    ML
    Azure
    AWS
    LLMs
    RAG
    Algorithms
    OR-Tools
    CloudFormation
    Docker

    Software Engineer & Founder

    May 2022 - Present

    Enterprise Solutions

    • Assisted in migrating mainframe systems as part of an extremely ambitious project to AWS infrastructure
    • Maintain data-processing project with T-SQL database and BI products using C#
    • Developed custom solution for GoDream (Danish gift-card provider):
      • Built on .NET with EFCore ORM
      • PostgreSQL database implementation
      • AWS infrastructure deployment

    Mobile Applications

    • Developed The Tattoo Archive for iOS and Android, featured in Danish media
    • Created Gas Money App - Automatic route price calculation using Google APIs and custom Python scraper
    • Built ScheduleIT for university scheduling
    • Innovative Push-Ups app using touch screen nose detection for counting
    .NET
    C#
    AWS
    PostgreSQL
    EFCore
    iOS
    Android
    Python
    T-SQL
    BI
    ITU Logo

    Academic Excellence

    IT-University of Copenhagen

    MSc

    Aug. 2019 - Aug 2021

    Mastering Advanced Algorithms & Optimization

    Outstanding Achievement: Top 10% (11.00/12.00)

    IT-University of Copenhagen

    BSc

    Aug. 2016 - Aug 2019

    Advanced Software Engineering Foundations

    Specialized in Cutting-edge ML & Security

    IT University of Copenhagen Building

    IT University of Copenhagen

    Rued Langgaards Vej 7, 2300 København

    Professional Experience

    VISMA

    AI Tech Lead

    Aug 2023 - Present

    The role

    As AI Tech Lead, I drive the end-to-end development of AI solutions, from architecture to deployment. Working closely with Product Management to align technical implementation with business objectives, I lead the team in delivering sophisticated AI services while ensuring best practices in cloud infrastructure, CI/CD, and system design. In addition to everything mentioned under AI Developer, I also handle the following:

    • Lead the technical strategy and implementation of AI services, including architecture design and CI/CD pipelines
    • Drive knowledge sharing and mentorship within the team while maintaining high code quality standards
    • Developed an AI-powered support agent achieving 85% self-service rate using RAG and vector search
    • Manage sprint ceremonies and backlog prioritization as agile lead for the AI team
    • Collaborate with clients to translate business requirements into technical solutions
    • Oversee cloud infrastructure on AWS and Azure, implementing best practices in security and scalability
    Python
    Java
    AWS
    Azure
    ML/AI
    LLMs
    RAG
    CI/CD
    Terraform

    VISMA

    AI Developer

    May 2022 - Aug 2023

    VISMA

    Software Developer

    Oct 2020 - May 2022

    SYNERGY SOFTWARE

    Software Engineer & Founder

    May 2022 - Present

    IT-UNIVERSITY OF COPENHAGEN

    Teaching Assistant

    Jan 2018 - Jan 2021

    NETCOMPANY

    Part-time Consultant

    Aug 2019 - Oct 2020

    IT-MINDS

    Part-time Consultant

    Feb 2019 - Aug 2019

    KEYLANE

    Part-time Developer

    Jan 2018 - Feb 2019

    Skills

    Languages & Frameworks

    Java
    C#
    .NET
    Python
    JavaScript
    SQL
    Flutter
    Dart
    iOS
    Android
    HTML
    React
    CSS
    Scala
    C++
    F#
    TypeScript
    Maven
    Git

    Frameworks

    Spring
    Entity Framework
    Pandas
    PyTorch