Senior Go & TS Fullstack Engineer — AI-Driven Backend

Poland and Central-Eastern Europe; Polska; On-site; PLN 180,000 - 320,000; Full time

Job summary

Xebia is seeking a senior fullstack software engineer in the EU region with strong backend Go experience and TypeScript skills. You will design and build backend services, APIs, and complex workflows, while ensuring data consistency in PostgreSQL and maintaining high-quality automated tests.

The role emphasizes AI-enabled development and architectural collaboration across teams. Applicants should have B2 level English and be able to work from the EU with the appropriate work permit.

Qualifications

• Senior-level experience in fullstack software engineering with backend focus.
• Strong commercial experience with Go for backend development.
• Very good knowledge of TypeScript.
• Solid experience with PostgreSQL.
• Hands-on experience designing and developing backend APIs.
• Experience implementing complex workflows or large state machines.
• Strong experience with automated testing, especially end-to-end testing.
• Experience in an AI-first or AI-assisted software development environment.
• Ability to establish reliable engineering practices and testing guardrails around AI-generated code.

Responsibilities

• Designing and developing backend services and APIs using Go.
• Building fullstack solutions using Go and TypeScript.
• Designing and implementing complex business workflows and state machines.
• Working with PostgreSQL and ensuring data consistency and reliability.
• Developing automated tests, particularly end-to-end tests, to ensure quality.
• Establishing engineering practices and guardrails for AI-generated code.
• Contributing to technical decisions and architecture in an evolving environment.
• Collaborating with the team to deliver scalable, production-ready solutions.

Skills

Backend Go

Go for backend

TypeScript

PostgreSQL

Backend APIs

AI-enabled testing

AI code guardrails

English (B2)

Software design

Tools

Kubernetes

GCP

Kafka

Redis

Job description

Xebia is seeking a senior fullstack software engineer in the EU region with strong backend Go experience and TypeScript skills. You will design and build backend services, APIs, and complex workflows, while ensuring data consistency in PostgreSQL and maintaining high-quality automated tests.

The role emphasizes AI-enabled development and architectural collaboration across teams. Applicants should have B2 level English and be able to work from the EU with the appropriate work permit.