Backend developer for Sproom team

At Sproom we're developing the leading service for electronic invoicing in Denmark. More than 44.000 companies and individuals depend on our platform to deliver their payment requests. We therefore send and receive invoices worth a total of more than 8 billion DKK. Our ambition is to become the most disruptive player in the market and rapidly transform the playing field for electronic invoicing.Sproom is being built, marketed and supported out of the HQ of Visma e-conomic, Scandinavia's leading cloud accounting company. You will be working directly in a five-man Sproom development team, but you will also be surrounded by 45 other highly talented developers, product owners and designers, working on other products. 

Your colleagues in sales, customer-support and marketing are also close to you and your close collaboration will ensure our success.


We’re looking for ambitious developers who will consolidate Sproom’s platform. Together with your team you decide how to design and implement new functionality. We work on a .NET stack with a SQL Server backend. Sproom processes more than half a million electronic documents a month. We are handling a couple million requests daily. We monitor the system using real-time dashboards created in Hosted Graphite and Kibana.


Is this you?


You love designing public REST APIs

You’re a developer looking to gain and share knowledge

You're a team player who can also make independent decisions

You love to code and get a kick out of seeing your features in production

You make mistakes sometimes – but you learn from them and take pride in fixing any issues

You and your team are in control - no micromanaging here

You challenge status quo


We offer:


A chance to work with some of the best professionals in the industry.

Influence on the tools and technologies in our stack.

The chance to work towards making Sproom a fully automated cloud platform.

Challenging technical tasks

Professional and personal growth through inspiring colleagues, challenging tasks, conferences, hackathons and meet-ups

Excellent Christianshavn location with a view of Den Sorte Diamant across the harbor

Free phone, Internet and choice of Mac, Win or Linux work machine




Contribute towards building a scalable and stable platform.

Build features that reach tens of thousands of our customers and partners.

Work closely together with a dedicated team of passionate developers and the partners that consume our API.

Write elegant, clean, testable and efficient code.

Review the code of others and have your own code reviewed.

Write tests, and watch them run green.

Automate all the things.

Push often, deploy early, and always measure and improve what you work on.

Be responsible for the daily health of the System.




2 years of professional experience

Knowledge of public API design

Knowledge of – or an urge to learn – new tools and technologies

Interest in Continuous Integration, DevOps and high frequency deployments

Excellent English communication skills

Burning passion for building, shipping and deploying business-critical web applications

You are comfortable writing OO code in C#. Experience with F# is desired but not required.


Please apply with both CV and cover letter


About Us


Sproom was acquired by Visma in April 2016 and is now backed by one of the strongest software companies in Europe. After the acquisition, Sproom moved in an attractive location on Christianshavn and now shares the building with e-conomic and Visma where we are a total of 175 employees.


If you have any further questions regarding the vacancy, please feel free to contact team lead Calin Laurentiu Ilie on