Senior Go & TypeScript Engineer - AI-First Backends

Xebiacee; Polska; On-site; PLN 240,000 - 420,000; Full time

Job summary

Xebia is seeking a senior fullstack software engineer with a strong backend focus to design and build scalable backend services using Go and TypeScript. You will work on complex business workflows, state machines, and AI-assisted software development within a fast-growing AI-first environment.

You will collaborate across teams in the EU region, ensure data consistency with PostgreSQL, implement automated end-to-end tests, and contribute to architecture decisions while maintaining engineering

Qualifications

• Senior-level backend focus with Go experience and TypeScript
• Hands-on API design and building scalable services
• Strong knowledge of PostgreSQL and data consistency
• Experience with automated testing, especially E2E tests
• Exposure to AI-first or AI-assisted development environments
• Ability to set engineering guardrails around AI-generated code

Responsibilities

• Design and develop backend services and APIs using Go
• Build fullstack solutions with Go and TypeScript
• Design and implement complex business workflows and state machines
• Work with PostgreSQL ensuring data consistency and reliability
• Develop automated tests, particularly end-to-end tests
• Establish engineering practices and guardrails for AI-generated code
• Contribute to technical decisions and shaping architecture
• Collaborate to deliver scalable, production-ready solutions

Skills

Go backend

TypeScript

PostgreSQL

API design

End-to-end testing

AI-first development

Engineering practices

English (B2)

Tools

Kubernetes

GCP

Kafka

Redis

Job description

Xebia is seeking a senior fullstack software engineer with a strong backend focus to design and build scalable backend services using Go and TypeScript. You will work on complex business workflows, state machines, and AI-assisted software development within a fast-growing AI-first environment.

You will collaborate across teams in the EU region, ensure data consistency with PostgreSQL, implement automated end-to-end tests, and contribute to architecture decisions while maintaining engineering