Projects

I lead the effort to establish a greenfield microservice-oriented platform where each service is a Spring Boot application exposing a REST API and using RabbitMQ for back-channel messaging. I oversee a team of 7 developers, ensure code consistency, run quality reviews, and regularly facilitate code sessions to upskill the client's developers. Initially sold as a three-month engagement in 2021, but the client has continously extended with new projects within Ejendomsdataplatformen.

• Sole developer of a feature otherwise handled by an external partner, saving SKAT a 200M DKK yearly service fee.
• Built the platform's most crucial components: loading all Danish properties and addresses, the scheduling service, and the most complex data orchestration services.
• Develop and maintain several high-impact libraries, such as a generic library handling bitemporal updates to real estate data.
• Own the strategy for keeping Java and Spring versions current across services.

Java, JDK11-25, Spring Boot 3 & 4, Postgres, Docker, Jenkins, Kubernetes, RabbitMQ, Datafordeler API

Built payments infrastructure for a team directly serving some of the bank's largest clients, including Alibaba and Stripe. I started in the Data & Reports team building highly scalable, performance-intensive reporting microservices, then became the primary developer leading the initial efforts in the bank's Virtual Banking initiative. I also developed the bank's report scheduling and feature-toggling components, and the Entity Framework Core database migration approach adopted by several development teams.

.NET C#, web apps, Azure Service Bus, Azure Functions, Blob storage, Azure DevOps CI/CD, MS-SQL

The client wanted to integrate events and data across departments to generate more accurate marketing and product recommendations. As primary developer I analysed the feasibility of near real-time event-based communication between business applications, and built a prototype using Java and ArtemisMQ with the AMQP message format.

Java, Spring Boot, ArtemisMQ

A proof of concept for a digital tool supporting payroll calculation across more than 100 collective agreements, with the requirement that new agreements could be added over time. The system needed correct pay calculation, detailed analysis of time registrations, quick verification of an existing payslip, and traceability for every result. As primary developer I built a REST API in ASP.NET Core against a third-party rule engine, and a ReactJS single-page front-end. New collective agreements were supported by updating JSON rule sets in MS-SQL, which dynamically generated the calculation tables.

.NET C#, Azure, MS-SQL, JavaScript, ReactJS

STAR set out to reduce sick leave in public workplaces with particularly challenging working environments. One deliverable was a digital system where workplace administrators could enter sick leave data, monitor it, and view statistical key figures. I handled the entire implementation — database models, back-end, and front-end — hosted on Azure.

.NET C#, ASP.NET Core, REST API, JavaScript, Vue.js, MS-SQL, Azure, Azure DevOps, Docker

The National Police initiated an independent external investigation into the police's use and handling of historical telecommunications data in criminal cases — a case that received significant attention in the Danish media. I developed the software tools used to extract and analyse telecommunications data from a large variety of sources.

Technologies undisclosed · DR coverage

The Danish Environmental Protection Agency supervises the extraction of raw materials at sea and needed a future-proof reporting solution giving both the agency and permit holders an overview of extracted amounts. I led the developer team building a front-end and back-end application displaying a map of all extraction zones and vessel movement patterns.

.NET C#, JavaScript, Vue.js, Azure, Postgres, Azure DevOps CI/CD, ARM templates · mst.dk

Part of a government initiative to strengthen students' language skills, this system had to be easy and intuitive to use in a classroom setting while supporting language tests covering auditory attention, vocabulary, grammar, storytelling, conversation, and early writing and reading. The tests were developed with language researchers at the University of Southern Denmark, and their scoring rules had to be implemented faithfully. As lead developer for sprogprøver.dk I was primarily responsible for the data models, the GraphQL back-end in ASP.NET Core, and the relational database entities.

.NET C#, Azure, GraphQL, MS-SQL, Azure DevOps CI/CD, ARM templates

A research project investigating the effect of healthcare treatment combined with structured employment interventions. I was the sole developer on a web application for collecting, managing, and processing citizens' health data, responsible for critical parts of the server and database code including security measures for sensitive data. Much of the effort went into entity models and database schemas for questionnaires, and role-based access management down to an individual respondent's replies.

.NET C#, ASP.NET Core MVC, REST, MS-SQL, Azure, Azure DevOps CI/CD · star.dk

Ørsted's advanced analytics group needed help developing their data aggregation platform for analysing data produced by windmill parks. I streamlined the development process for the client's internal staff by building high-quality Python packages that let their data scientists run machine-learning jobs.

.NET C#, Python, Azure Functions, ASP.NET Core, REST, MS-SQL, NoSQL, Azure DevOps

The customer needed a system for consolidating contracts and software licenses so they could get an overview and search existing agreements. I assisted with application and database design, and implemented the ASP.NET Core back-end and Vue.js front-end.

.NET C#, ASP.NET Core, JavaScript, Vue.js, MS-SQL, IIS

CopenHill must account for the number of people on its ski slope at all times, and control visitor numbers in real time to comply with fire and load-capacity regulations. A person counter at the elevator and a camera monitoring the slope entrance fed a machine learning component that published an event per arrival and departure. I built a node.js Express web app displaying the current guest count, and an Azure Function that listened on a Service Bus, aggregated incoming and outgoing guests, and pushed each calculation to the web app over SignalR.

JavaScript, node.js, Azure Service Bus, Azure Functions, Cosmos DB, Azure, Azure DevOps

The Danish Tax Agency was determining its architectural choices for data acquisition and for the API and service-enablement layer of its Data Platform, evaluating several delivery technologies through prototyping. I contributed prototypes for a big data HDP setup and analysed the advantages and consequences of the different tech stacks for retrieving, filtering, and displaying data.

GraphQL, NiFi, C#, node.js, HBase, Docker, HortonWorks Data Platform

A cross-sector project focused on early and preventive intervention for vulnerable and at-risk children and young people, requiring digitised collection of SDQ measurements — multi-page questionnaires whose results indicate what intervention social workers can proceed with. As primary developer I implemented the web-based tool for collecting the data, analysing it, and presenting it through graphs and aggregated key figures. The tool became known as Deloitte Insight and formed the foundation for several later project codebases.

.NET C#, ASP.NET Core, MS-SQL, Azure, Azure DevOps, HTML5, CSS3, JavaScript, knockout.js

The municipality needed a centrally digitised registration tool for collecting data on the well-being of children and young people in vulnerable families, used to investigate and initiate interventions. I was the sole developer, responsible for the MS-SQL database and the ASP.NET MVC5 web application through which caseworkers completed a series of questionnaires.

.NET C#, ASP.NET MVC5, Azure, Azure DevOps, JavaScript, HTML5, CSS3, knockout.js

I provided expertise in the development of automated tests, test execution, and agile development and test processes. The test suites were developed in Java using Selenium and TestNG.

Java, TestNG, Selenium

STAR required changes to an existing data registration system used by caseworkers. I extended the web application with a REST API, and improved the front-end with a better user experience, data filtering, and the ability to update data.

ASP.NET MVC5, JavaScript, knockout.js, CSS3, HTML5

Roche wanted a vibrant online space for their diabetes community where patients could share their stories, and which would also serve as a platform for promoting their products. Using PHP I built a dynamic website that let users post their experiences, engage in discussions through comments, and gave Roche the means to manage advertisements.

PHP, HTML5, CSS3, MySQL