Tungsten - Senior Backend Developer / Warszawa [18-25k net B2B]


About Tungsten

Tungsten is an established security-focused, end-to-end encrypted messenger that enables users to set up both public and private personas. We’re working on a mix of fun features and hardened security. We’re looking for someone who will join the team responsible for the backend applications behind the app and who cares about privacy and security for end users and enjoys solving all hard technical problems related to it.


  • 5+ years experience working on a backend developer position
  • Ruby experience
  • Experience in deploying and maintaining production systems
  • Experience and interest in secure system designs
  • Excellent English communication skills

Nice To Have

  • Deep understanding of secure network protocols/encryption algorithms
  • Experience working on solution architect position
  • Experience with DevOps practices and the standard DevOps toolkits
  • Experience with startups / experimental research projects in security space

We Offer

  • Competitive salary on B2B contract [18,000-25,000 PLN net B2B]
  • Opportunity to influence product decisions and development process
  • Flat hierarchy
  • Great office location in Warsaw
  • Flexible working hours / part-time remote work
  • Team building / Integration meetings

Apply via email: jobs@tungsten-labs.com