Who We Are

Cobalt is a remote-first startup that is redefining pentesting and making cybersecurity easier and more accessible. Our Pentest as a Service (PtaaS) platform, coupled with an exclusive global community of testers, delivers the real-time insights you need to remediate risk quickly and innovate securely. We have Scandinavian roots, an American base, and a global outlook. Our international team is characterized by a fun, fast-paced, and collaborative culture based on individual responsibility and ownership.


Today, Cobalt helps secure hundreds of leading companies like HubSpot, DocuSign, and Solarisbank by connecting them with on-demand pentesting experts. The application brings both sides together to identify, triage, and fix vulnerabilities. Seven years and 20K penetration tests later, our technology has been battle-tested by thousands of users. 

What’s next? Cobalt is developing its Growth Experience group to help solidify our status as a world-class security platform. To achieve this, we are looking for a Senior Software Engineer to help us on our mission to accelerate and maximize Cobalt customer and revenue growth by connecting users with the product value. We do this by enabling them to discover/unlock product features and by driving more users to the value. We collaborate with other product teams to learn and to share learnings resulting from our experiment- and data-driven approach.

The problems we solve center around customer acquisition and revenue expansion opportunities that stem from our product. We use data (quantitative and/or qualitative) to form hypotheses to test and optimize.

Being a part of the Growth Team, you will contribute to the way we build, maintain, and improve our software stack. You will work in a fast-paced, agile environment, collaborating daily with our Design teams and Product Management and, of course, with a modern JavaScript-based ecosystem (React) + Ruby on Rails / Kotlin + Cloud Infrastructure (GCP, Kubernetes, etc).

You Will

  • Grow within a remote-first engineering team, following agile and continuous automation processes to build out the best possible experience for our customers.
  • Partner with product, marketing, and sales teams to gather requirements, brainstorm solutions and deliver creative solutions that meet needs concerning usability, performance, aesthetics, reliability, and realistic implementation schedules.
  • Collaborate in a fast-paced startup environment, making an impact as we aim to build the best Pentesting-as-a-Service (PtaaS) platform.

You Have

  • 5+ years of professional experience with web development 
  • The ability to work with our tech stack (above) or be willing to learn if needed
  • Experience in creating and consuming RESTful APIs 
  • Experience with CI/CD processes and producing clean, efficient, well-tested code based on specifications and designs
  • Knowledge of application architecture, security, and reliability concepts
  • A proactive attitude & willingness to participate in team discussions
  • A high comfort level within a remote-first, globally distributed company
  • A growth-oriented mindset — you're always interested in learning and stepping out of your comfort zone
  • Good written and verbal communication in English

Why You Should Join Us

  • Earn competitive compensation and an attractive equity plan
  • Save for the future with pension 
  • Treat yourself to paid remote lunches
  • Leverage stipends for
    • Wellness
    • Work-from-home equipment & wifi
    • Learning & development
  • Grow in a passionate, rapidly expanding industry operating at the forefront of the Pentesting industry 
  • Work directly with experienced senior leaders with ongoing mentorship opportunities
  • Make the most of our flexible, generous paid time off, remote working from anywhere in the UK or Germany and travel perks

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