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Security Engineer

Conduct architecture security reviews, application testing, penetration testing, and work with the engineering team, security researchers, and third-party vendors to ensure the security of our systems.

  • Tallinn, Harju, Estonia
  • Posted Nov 13, 2026
INDUSTRYSoftware & InternetSaaS & Enterprise Software

Responsibilities

  • Perform application and penetration testing
  • Work with engineers to analyze systems, threat model new features, and create responsive controls to ensure end-to-end customer protection
  • Work with third-party vendors to perform annual application and penetration testing reports
  • Maintain, and grow our private bug bounty program; lead the transition to a public bug bounty program
  • Give and receive code review feedback from the team
  • Maintain a pulse on emerging technologies and discover hidden opportunities in our environment
  • Ensure security and resilience of Restream production infrastructure

Requirements

  • Experience in a Multistreaming

Nice to have: Node.JS (TypeScript), Rust

Skills

Web application vulnerabilitiesPenetration testingAutomated tools for reconnaissance and discoveryScripting languagesGeneral-purpose programming language

Benefits

  • Equity packages
  • Startup environment
  • Flat company structure

Full description

Restream is looking for a talented Security Engineer to join us to solve complex challenges and build world-class products. In this role, you will conduct architecture security reviews, application testing, penetration testing, and work with the engineering team, security researchers, and third-party vendors to ensure the security of our systems as we rapidly scale our product and organization. You understand the importance of simplicity and reliability, and you calculate the impact of every decision on each. We believe in small teams where each member contributes significant value. What You'll Do - Perform application and penetration testing. - Work with engineers to analyze systems, threat model new features, and create responsive controls to ensure end-to-end customer protection. - Work with third-party vendors to perform annual application and penetration testing reports. - Maintain, and grow our private bug bounty program; lead the transition to a public bug bounty program. - Give and receive code review feedback from the team. - Maintain a pulse on emerging technologies and discover hidden opportunities in our environment. - Ensure security and resilience of Restream production infrastructure. What We Look For - A scrappy, entrepreneurial attitude that gets high-quality projects done quickly. - Solid knowledge of web applications vulnerabilities and attack vectors. - Experience manually testing web applications, performing penetration testing, and using automated tools for reconnaissance and discovery. - Experience with scripting languages and at least one general-purpose programming language. Node.JS http://Node.JS (TypeScript) or Rust would be a plus but are not a requirement. - Strong written and verbal communication skills. - Self-directed, analytical, and work well in a team environment. - Passionate about keeping Restream customers and employees safe online. Back in 2015, Restream was founded in Ukraine. We had a burning passion for helping creators to be seen and heard. As the #1 multistreaming solution, Restream inspires over 10 million people worldwide to share their stories through live video and follow their dreams. We believe that a small but highly driven and focused team can make a lasting impact on people’s lives. What We Offer - A startup environment and a flat company structure - Work closely with founders and team to build and grow the product - Opportunity to make an impact on the evolution of the product - Ability to create something that influences people's lives - Equity packages for you to truly be a part of the Restream journey - The tech you need to get your job done

Security Engineer at Restream | Referso Jobs