Senior Platform Engineer: AI-Powered Backend

Vaco; Polska; On-site; PLN 180,000 - 320,000; Full time

Job summary

Modaxo is building a new enterprise AI platform, delivering production-grade backend services, APIs, and data integration. You will own end-to-end delivery, balancing reliability, scalability, and customer value while shaping platform design and developer experience.

The role emphasizes pragmatic decision-making, ownership, and collaboration with product teams and customers to drive measurable outcomes and reliable product delivery.

Qualifications

• Production backend or distributed systems experience.
• Owns tests and operations for what you build.
• Able to describe systems by trade-offs made.
• Communicates clearly with engineers, product partners, and customers.
• Focuses on outcomes, value, and pragmatic shipping.

Responsibilities

• Design and build core backend services – APIs, orchestration, and access control – as reliable, production systems.
• Shape API design and developer experience for platform consumers.
• Own services end to end including tests, deployment, and on-call.
• Collaborate with product teams and customers to validate value and outcomes.
• Build automated QA and tests into the delivery pipeline.

Skills

Production distributed systems

End-to-end ownership

Trade-off reasoning

Clear communication

Value and pragmatism

Job description

Modaxo is building a new enterprise AI platform, delivering production-grade backend services, APIs, and data integration. You will own end-to-end delivery, balancing reliability, scalability, and customer value while shaping platform design and developer experience.

The role emphasizes pragmatic decision-making, ownership, and collaboration with product teams and customers to drive measurable outcomes and reliable product delivery.