Senior GO Developer - Freelancer

About the Position

Xebia is a global AI-first, digital transformation, and engineering partner. With over 25 years of experience and a team of 5,000 professionals across 16 countries, we help organizations design and build scalable products, platforms, and data-driven solutions.

We are seeking a Senior GO Developer as a freelancer to join our global team, specializing in backend development with Go (Golang) and gRPC.

Responsibilities

• Developing, enhancing, and maintaining multi-tenant backend services/APIs using Go (Golang) and gRPC, running in Kubernetes, using Postgres as database backend.
• Data modelling (e.g. database, canonical product data model) with focus on performance and multi-tenancy.
• API design following Google AIP standard, with multi-tenancy in mind (i.e. we're not building a backend for frontend).
• Designing and presenting architecture changes via ADR, following our architectural guidelines and principles.
• Creating and maintaining integrations between our backend services and multiple SaaS systems (e.g. our systems for product content).
• Ensuring code quality through testing, code reviews, and adherence to standards.

Requirements

• Strong experience in backend development with Go (Golang) 5+ years.
• Solid understanding of concurrency, data structures, and backend fundamentals.
• Experience designing and consuming APIs.
• Experience with SQL databases (PostgreSQL, MySQL or equivalent).
• Proficiency with Git-based workflows.
• Experience with unit and integration testing.
• Hands-on experience with Docker.
• Practical experience using AI-powered assistants (e.g. Claude Code, GitHub Copilot, Cursor) to improve productivity, quality, or decision-making in software delivery.

Work from the European Union region and a work permit are required.

Nice to Have

• Experience applying GenAI in a more structured way within the SDLC, including defined workflows, prompt patterns, or tool integrations embedded into daily work.
• Interest in and familiarity with emerging AI-driven practices (e.g. agent-based workflows, automation patterns, AI-augmented development), with a willingness to explore and experiment beyond standard approaches.

Recruitment Process

1. CV review
2. HR call
3. Interview
4. Client Interview
5. Decision

Locations

• Bulgaria
• Poland
• Romania

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