Haseeb Jamil, Senior Product Designer

A heart felt thank you for everything that you have done for me. I have learnt a lot from you! I don’t know if I could gather the right words to describe my feeling but you have helped me see the bigger picture.

Awais Imran, Product Design Manager

Karsten taught me the value of pragmatism and efficiency. Be cross-functional and collaborative but delivering value to the customer is paramount.

Working with him made me a better designer and person. His passion for great design is infectious, as is his ambition and optimism which pushes you to aim higher and, as a result, reach grander heights as a team.

The personal relationship he has with every single colleague and the occasional tough love he provides lighted a fire in me. He made me and every member of the team a better designer, professional, and person.

Chris Dzombak, Principal Software Engineer

A very capable design lead. His designs for the Nutshell logo, website, web app, iPhone app and iPad app are very exciting and are just what we were hoping for when we hired him.

Phillip Wilt, Senior Software Engineer

Karsten is an excellent colleague. He is able to prototype flows, and communicate the design thinking behind them effortlessly. His ability to absorb feedback and iterate is incredibly fast and the end result is always high quality.

Karsten is technically very strong. After a brief afternoon of onboarding, he was able to deliver production-ready React code near immediately. He even used map-reduce in elements within the components. I’ve never even seen a designer use map-reduce!

Michele Gaudelli, Sales Director

Karsten’s feedback from our clients are testament to the quality of the work he produces. No designer has received greater praise!

He is not only a highly skilled designer & front-end developer, he also has excellent people and leadership skills. A pleasure to work with. His technical skills combined with his approach make him an invaluable member of the team.

Mike Linington, Senior Software Engineer

An enormous pleasure. Aside from his amazing design talent; his work ethic, attention to detail, and general professionalism are unparalleled. He set’s the bar.

Andy Fowler, CTO

Karsten is responsible for Nutshell’s entire brand identity, web and mobile product design, as well as our advertising campaigns. Karsten has shown immense ability to organize and direct team efforts.

Penny Everett, Accessibility Consultant

I’ve worked with a few designers in my time, but never before have I met someone with so much flair and passion.

Karsten has an incredible openness to learn and meet accessibility requirements and standards. He’ll take anything onboard providing he can see a justification in it.

I’ve seen other designers work themselves into total exhaustion trying to meet deadlines, but not Karsten. He puts in 110% effort during working hours and then maintains a healthy balance between work and play.

Yes, just like anyone else, deadlines make him totally focussed, but as soon as they are met he’s not averse to joining in the office banter.

Every now and again he comes out of his design box and evangelizes design techniques within his own team, but also the wider company.

He is a natural presenter and can make any audience realize how important the look and feel is. We often have clients asking specifically if they can have Karsten assigned to their projects following one of his presentations.

How he still maintains a modicum of modesty is beyond me!

Eduardo Muller, CEO

An absolute pleasure to work with. Opinionated, yet a good listener – valuing customer feedback and facilitating cross-departmental input into the design process.