Senior Backend Engineer
Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Oct 12, 2026.
Description
Accelerate Your Career in Cybersecurity!
Join Pentera and take your career to the next level in cybersecurity. As a leader in Automated Security Validation, we help businesses around the world safely emulate real-world attacks to uncover their vulnerabilities, just like the world’s best red teams. At Pentera, you will be at the forefront of cybersecurity innovation, working on advanced tools that challenge organizations' defenses and push the limits of security testing.
With over 350 team members and 1,300 customers in more than 60 countries, Pentera is a growing company supported by top investors such as Insight Partners, K1, and The Blackstone Group.
If you want to grow your skills, make an impact, and be part of an innovative team, Pentera is the place for you.
About the role:
We're looking for a Senior Software Engineer to join us at a moment when AI is reshaping how software gets built and how attackers operate. You'll ship production code in a core engineering team, own features end-to-end, and help push our engineering org to be genuinely AI-native, both in what we build and in how we build it.
This is a hands-on role for someone who wants real ownership, works well with product and research, and is excited to use AI as a daily force multiplier.
Responsibilities:
- Design, build, and ship features across our platform, from architecture through production
- Own components end-to-end: performance, reliability, security, and long-term maintainability
- Partner with product managers, security researchers, and other engineers to turn hard problems into shippable products
- Lead the integration of AI capabilities (LLMs, agents) into the product where they create real user value, not just where they look good in a demo
- Drive the adoption of modern AI coding tools (Cursor, Claude Code, Copilot) as part of your daily workflow, and actively mentor the team to level up their AI-driven development
- Raise the bar on code quality, review culture, and technical decisions
- Mentor other engineers and contribute to how the team works, not just what it ships
Requirements
- 5+ years of experience building and shipping production software
- Strong fundamentals in software design, data structures, and system architecture
- Proven track record of designing, building, and shipping features end-to-end, from initial architecture to production.
- Proven experience developing and integrating AI capabilities (LLMs, AI agents, or ML pipelines) into production systems
- Comfort working across the stack and picking up new technologies quickly
- Advanced proficiency in using AI coding tools (e.g., Cursor, Claude Code, Copilot) in real work, with the ability to lead AI-driven workflows across the team
Nice to have:
- Background in cybersecurity, offensive security, or infrastructure-heavy products
- Experience in a high-growth startup environment
- Open source contributions or technical writing
We are an equal opportunity employer and we are committed to building a diverse and talented workforce. We do not discriminate on the basis of race, sex, religion, colour, national origin, gender, gender identity, sexual orientation, age, marital status, veteran status, medical condition, disability, or any other class or characteristic protected by applicable law. We welcome candidates from all backgrounds to join us!