During my time at Klarna, as a senior engineer, I was a member of two teams - the Kubernetes on Azure Runtime team and The Merchant Portal Platform team.

Being a member of the runtime team was a great experience, our mission was to develop Klarna's cloud agnostic future, bringing the many thousands of services from ECS over to Kubernetes with a focus on security, uptime and performance. It was a highlight of my time there.

As a member of the platform team it was our job to build the underlying framework und tooling needed to facilitate other teams in Klarna to build features for our merchants. The team had a very central role in the domain and required thorough planning and effective communication to achieve its goals.

Additionally I was a member of the Javascript hiring pipeline which required assessing candidate's on their ability and suitability, while also displaying Klarna's culture and other benefits in the hope of attracting the talented applicants.

While at Klarna I also completed the internal Security Academy a course aimed at teaching engineers about the most prevalent security flaws and how to consider them during the development process.

2019 - 2023

klarna.com

Jicki is a fantastic language learning app. It's adopts a learning paradigm named "Sprachduschen" meaning to shower oneself in the language. Users listen to soothing audio tracks and soak up the riveting language courses. At Zwei.biz we built new versions of both their iOS and Android apps. The new app is built with React Native. I personally was responsible for all the development and shared responsibility for the project management. The app is available so check it out.

jicki.de App Store Play Store

Bikeshed is a bicycle spoke calculator and visualiser. It is completely self designed and built by me. It is born from my passion for cycling and restoring bicycles. It leverages Pixi.js and runs natively in the browser by utilising the awesome WebGL, and React.js & Redux.js for all the rest. It allows users to make the precise spoke length calculations needed to produce perfect wheels and, unlike other spoke calculators, it shows in true accuracy the spoke/nipple relationship and the many spoke lacing patterns available.

Bikeshed

Robots & Lasers is a two man game studio, started with a friend. We've produced more than 20 games in our first 3 years, and have partnered with some of Germany's largest gaming operators. Which is significant, as I have been the only developer for all the games we have produced. And I am pleased to say all games are HTML5 - no flash in sight.

robotsandlasers.net

Beatguide was a platform to help music fans discover electronic music events. It grew to 15 cities within 3 months, during which time it won the Red Bull Amplifier start up competition.

A friend of mine and I started Beatguide and with a small team and a small seed built; Web, iOS and Android platforms, a Back-office, a flash media widget for facebook feeds and an ingenious machine learning tool to gather and interpret event, venue and artist data. Beatguide sadly ran out of funding after 12 months, but managed to achieve a lot in this small time.

Personally I built the entire iOS app and supported the web-frontend, the backend, the back-office tool & the Android app. Additionally I played the role of project manager and was responsible for all the company's design.

beatguide.me (now closed) red-bull-amplifier (now closed)

Shiftmarket is a platform for shift-workers and their employers to manage shifts, allowing users to swap and give away shifts on the market. I did the the design for the iOS app and the Web app. Additionally I built the web app and helped maintain the iOS app after launch.

shiftmarket.com (now closed)

BLN.fm is one of Germany's biggest online radio stations. To help them grow I built their iOS app, connecting up to their aging Wordpress installation was challenging, but we managed to make a nice solution which allows users to listen to Bln.fm on the go.

bln.fm

Piraya mobile is an Berlin-based online game publisher. They connect third party games into their growing eco-system using the Piraya iOS SDK I built for them. This was a great project for me. The project was passed on to Piraya upon completion which meant the documentation, code comments, and code style had to be top quality. Which I am proud to say it was.

pirayamobile.com

I have quite a lot of Git and Github experience, however almost all my work has been proprietary, and therefore much of my work can't be open-sourced. However, there are a few little gems, so if you like you can check me on github anyway.

github.com/brenwell