Senior Backend Engineer, Agentic Penetration Testing

Ox Security — Poland · Posted ~1 day ago

Senior Full-time

Skills

backend engineering API development scalable systems secure systems high-performance systems software architecture backend APIs AI cybersecurity

🔓 Log in to save this job, tailor your resume & track your apply process — 7 days free, no card needed.

Log in to add to target list

Summary ✨ AI‑Generated

A senior backend engineer is sought to design and implement scalable APIs and high-performance systems for an AI-focused cybersecurity platform. The role involves solving complex technical challenges, building secure infrastructure, and collaborating closely with an experienced engineering team.

Highlights

Build secure, scalable backend infrastructure for AI-era cybersecurity, tackle complex engineering problems, and work alongside experienced engineers on high-impact systems.

Description

About The Position Ox Security secures the AI-driven SDLC from prompt to production. We eliminate critical, real-time risks from AI code generation through cloud runtime by doing what conventional tools can’t: unifying development and cloud context to stop vulnerabilities right at the source. At OX, we’re building the future of cyber security for the AI era. If you’re looking to work on disruptive technology with an amazing team, you belong here. We’re growing fast and looking for a Senior Backend Engineer to join our Engineering team and help build the infrastructure that powers our platform at scale. This is a high-impact role where you’ll work alongside top-tier engineers, designing and building secure, high-performance systems in a fast-paced environment. If you enjoy solving complex technical challenges and want your work to have real impact - we’d love to meet you. Responsibilities: What You’ll Be Doing Design and implement scalable backend systems and APIsCollaborate with Product, Frontend, and other engineering teams on system architecture and requirementsOptimize performance, scalability, and security of applicationsTroubleshoot and resolve production issues with minimal downtimeLead code reviews and promote best engineering practicesMentor and support junior engineersContinuously improve system design, reliability, and development processes Requirements: What We’re Looking For Bachelor’s degree in Computer Science or a related field5+ years of experience in backend developmentAI-First Approach – Active and proficient use of AI tools (e.g., Copilot, LLMs) to streamline coding practices, accelerate learning curves, and optimize workflows.Strong experience building scalable, production-grade systemsProficiency in Node.jsExperience with SQL and NoSQL databasesFamiliarity with cloud platforms and microservices architectureStrong problem-solving skills and attention to detailPassion for writing clean, maintainable, and efficient code Bonus Points for : Experience in the cybersecurity, SaaS, or Cloud Security domain.Hands-on experience with modern cloud environments (AWS/GCP), Docker, and Kubernetes. Employment & Benefits Package (via Commit) We partner with Commit offshore, which acts as our official local Employer of Record, to manage payroll, local compliance, and provide top-tier benefits for our team members: 100% RemotePaid Time Off (PTO): 20 days of annual leave & 5 Sick Days to support your health and work-life balance.Gifts & Events: Gifts on your birthday & holidays, along with company events to keep you connected and appreciated.