Senior Backend Engineer: Scalable, Secure Systems Architect

Team8; Polska; On-site; PLN 180,000 - 300,000; Full time

Job summary

Ox Security secures the AI-driven SDLC from prompt to production, eliminating real-time risks in AI code generation through cloud runtime. We are building the future of cybersecurity for the AI era, and you will join a fast-growing team to design and implement secure, high-performance backend systems at scale.

As a Senior Backend Engineer, you’ll lead architecture, collaborate with product and frontend teams, mentor junior engineers, and drive reliability and scalability across our platform.

Qualifications

• Senior Backend Engineer role requiring design and implementation of backend systems.
• Ability to collaborate with cross-functional teams on architecture and requirements.
• Focus on performance, scalability and security of applications.
• Experience in troubleshooting production issues with minimal downtime.
• Strong emphasis on code reviews and engineering best practices.

Responsibilities

• Design and implement scalable backend systems and APIs.
• Collaborate with Product, Frontend, and other engineering teams on system architecture and requirements.
• Optimize performance, scalability, and security of applications.
• Troubleshoot and resolve production issues with minimal downtime.
• Lead code reviews and promote best engineering practices.
• Mentor and support junior engineers.
• Continuously improve system design, reliability, and development processes.

Skills

Backend development

API design

System architecture

Production troubleshooting

Mentoring

Job description

Ox Security secures the AI-driven SDLC from prompt to production, eliminating real-time risks in AI code generation through cloud runtime. We are building the future of cybersecurity for the AI era, and you will join a fast-growing team to design and implement secure, high-performance backend systems at scale.

As a Senior Backend Engineer, you’ll lead architecture, collaborate with product and frontend teams, mentor junior engineers, and drive reliability and scalability across our platform.