Software developer. Backend, Frontend, DevOps, and Cyber Security
I'm Jasper — I build C# services, APIs and websites for a living at AIR SUPPORT A/S, and ship open-source tooling in my own time.
//selected_work
ls ~/repos → allBump Buddy
A Discord bump-reminder bot I've run and maintained for six years. It has grown from a weekend project into infrastructure for 29,000+ servers — which means sharding, rate-limit discipline and deploys that can't take the bot offline.
DMR.NET is a nuget package designed to help developers interact with the data provided by the Danish Vehicle Registry (DMR). Its primary goal is to provide the logic for downloading and parsing DMR data, enabling developers to create their own services that can ingest this data and store it in their own databases for faster retrieval and processing.
DMR2Mongo is a simple service that checks for updates to the Danish Vehicle Registry (DMR) database, downloads the latest available data, parses the objects, and stores them in a MongoDB database.
KanbanCord is a Discord bot that brings Kanban boards to your server, enabling efficient task management and seamless team collaboration.
The Notam Management Project, developed in collaboration with AIRSUPPORT A/S, is part of the final exam for the Computer Science program. The project focuses on streamlining the management and handling of NOTAMs (Notice to Airmen) to improve aviation safety and operational efficiency.
dmr.py is a python package that allows you to look up Danish license plates by scraping the danish vehicle registry directly, eliminating the need for a paid API. This project may no longer be maintained.
Guildy is a Danish Discord bot used by over 400 servers, making it one of the largest Danish Discord bots. It’s a multi-purpose bot with a wide range of features designed to enhance server management and user experience.
Korterelink is a URL shortener service with browser addons for quickly creating short URLs. The project is still running, but it has not been updated in a while.
This website. Jazper.dk is the personal website I’ve built to showcase my work and projects. This site is developed using Blazor Server.
An unofficial FlightRadar24 API wrapper designed to provide easy and efficient access to the FlightRadar24 data. This is available as a NuGet package.
ServerListen is a Danish Discord server discovery list. It allows Discord server owners to list their servers on the website to advertise them to potential new users. The website is built using an ASP.NET backend paired with a Blazor Server frontend.
A crowd-sourced list of Danish companies that take datamatiker interns — built because nobody else had one.
//stack
What I reach for, grouped by what it's for.
Programming Languages
Databases
DevOps
Technologies
//security_&_ctf
Pentesting is the hobby that keeps the day job honest — capture-the-flag events, and grinding boxes when a challenge looks interesting.
Competed among the top 100 Danish cyber talents aged 15–25, for a place on the national team at the European Cybersecurity Challenge.
//certifications
verify on credly →Issued through Credly — each badge links to its verifiable record.
Validates core knowledge, application integration skills, and practical day-to-day operational experience.
Foundational entry-level certification validating core IT, networking, and basic security concepts.
Professional entry-level certification validating a verified baseline of core cybersecurity knowledge.