Software Engineer, Reactor – Chainalysis

Job Description

Are you a highly skilled Software Engineer, and do you want to work with some extremely complex systems in Blockchain, for one of the most succesful danish scaleups the last decade? Yes? – You should definitely read on!

The Engineers working at Chainalysis build systems that detect fraud in real-time. Chainalysis builds trust in blockchains between people, businesses, and governments. Our Blockchain Intelligence Platform powers our compliance and investigation software for the world’s top institutions.

The Chainalysis Reactor team is building a product for tracing and investigating activity on blockchains. Software Engineers on the Reactor team thrive on not just designing and implementing complex systems, but also operating them. We measure our success by how well we support deliverables from other teams as well as how we enable our customers to solve cases using the software we build.

In one year you’ll know you were successful if…

  • You have built a scalable APIs that support our product suite
  • Our customers can seamlessly audit their own data thanks to your work
  • You’ve modernized our stack to streaming architecture and have improved our CI/CD pipeline
  • You have debugged and solved issues across multiple systems and microservices
Complexity of the role

About Chainalysis

Chainalysis was founded in Copenhagen by Michael Gronager and Jonathan Levin back in the beginning of 2015. 

Chainalysis is the blockchain analysis company. By providing compliance and investigation software to the world’s leading banks, businesses, and governments. Their experts in financial crime and blockchain analysis empower customers to derive insights they can act on.

With the mission to create greater trust and transparency about cryptocurrency, they wanted to create the fundamentals for it to realize its full potential.  By the usage of Chainalysis’ software they both offer compliance and investigation tools, and enables banks, businesses, and governments the confidence and knowledge they need to help this new digital economy thrive. 

Reactor is Chainalysis’ investigatory workhorse and flagship product. It visualizes cryptocurrency movement across a blockchain and flags addresses associated with illicit activity.


Diversity of experience and thought makes us stronger. With both customers and employees around the world, we are committed to ensuring our team reflects the unique communities around us. Some of the ways we’re ensuring we keep learning are an internal Diversity Committee, Days of Reflection throughout the year including International Women’s Day, Juneteenth, Harvey Milk Day, and International Migrant’s Day, and a commitment to continue revisiting and reevaluating our diversity culture.


Are you the candidate we seek?

Then please reach out to:

Recruitment Business Manager


DK: +45 28 87 31 54

US: +1 (415) 287-0402

Reach out so we can tell you more