Principal AI Security Architect & Backend Innovator

Mend.io; Poland; On-site; PLN 120,000 - 150,000; Full time

Job summary

Mend.io, located in Poland, is seeking a Principal Software Engineer to lead the development of innovative application security solutions utilizing AI technology. This role requires 10+ years in backend software engineering and at least 3 years in a leadership position, driving initiatives in complex environments. As a key decision-maker, you will own architecture and design choices, collaborating with teams to bring impactful solutions to production. The position emphasizes ownership, adaptability, and leveraging AI throughout the software development lifecycle.

Qualifications

• 10+ years of backend software engineering experience.
• 3+ years in a technical leadership role.
• Experience building systems end to end from scratch in a product environment.
• Strong hands-on experience with Go, Java, or Python.
• Solid understanding of cloud environments.

Responsibilities

• Design and build solutions from scratch.
• Leverage AI agents across all stages of development.
• Drive independent research and lead development.
• Act as a technical leader and key decision maker.
• Build and evolve backend architectures.

Skills

Backend software engineering

Technical leadership

System architecture

Modern programming language (Go preferred)

AI integrations

Cloud environments (AWS/GCP/Azure)

Communication skills

Job description

Mend.io, located in Poland, is seeking a Principal Software Engineer to lead the development of innovative application security solutions utilizing AI technology. This role requires 10+ years in backend software engineering and at least 3 years in a leadership position, driving initiatives in complex environments. As a key decision-maker, you will own architecture and design choices, collaborating with teams to bring impactful solutions to production. The position emphasizes ownership, adaptability, and leveraging AI throughout the software development lifecycle.