Senior GO Developer - Freelancer

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. In the CEE region, they have nearly 1,000 experts delivering modern applications, data platforms, and AI solutions for clients such as McLaren, Aviva, Deloitte, Spotify, Disney, ING, UPS, Tesco, Truecaller, AllSaints, Volotea, Schmitz Cargobull, Allegro, and InPost. They work with leading technologies including AWS, Azure, GCP, Databricks, and Snowflake.

• 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 structured way within the SDLC, including defined workflows, prompt patterns, or tool integrations
• Interest in and familiarity with emerging AI-driven practices such as agent-based workflows, automation patterns, AI-augmented development, with willingness to explore beyond standard approaches

• Developing, enhancing, and maintaining multi-tenant backend services/APIs using Go (Golang) and gRPC, running in Kubernetes, using Postgres as database backend
• Data modelling with focus on performance and multi-tenancy
• API design following Google AIP standard with multi-tenancy in mind
• Designing and presenting architecture changes via ADR following architectural guidelines and principles
• Creating and maintaining integrations between backend services and multiple SaaS systems
• Ensuring code quality through testing, code reviews, and adherence to standards

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