[8XS] Senior Software Engineer – Go

Responsibilities

You will design and build scalable core platform services in Go, focusing on plugin contracts and integration with Kafka event hubs. Additionally, you will set standards for code quality, testing, and observability while mentoring mid-level engineers.

Requirements

The role requires over 5 years of backend engineering experience, with at least 3 years specifically in Go within production environments. Candidates must have strong expertise in distributed systems, cloud platforms, and the ability to work within European/UTC+4 time zones.

Skills

• Go
• Kafka
• Google Cloud
• Distributed systems
• API design
• REST
• gRPC
• PostgreSQL
• Redis
• Concurrency
• Performance tuning
• Multi-tenant systems
• Event-driven systems
• CI/CD
• Observability
• Mentoring

Benefits

• Great place to work certified environment

About this role

Company Description
We are Software Mind, an awesome team of engineers who are ready to ramp up any top-notch company’s projects! Our aim? To always be one step ahead. Become part of a multicultural company in constant growth with an excellent work environment certified by Great Place To Work!
Job Description
Our client is a global company in the video-game industry whose tools are used by game studios worldwide. You’ll be joining the client’s engineering team to build a new LiveOps plugin platform in Go, Kafka and Google Cloud, letting internal teams extend LiveOps through a strict plugin interface. You will work in a small Scrum team alongside the client’s technical lead.
Project length: 6 months, with possible extension
Time zone: UTC+4 (European working hours). Overlap is required.
Qualifications
Expectations - the experience you need
90% English written and oral (at least B2 level) with excellent communication skills.
Proven background in backend engineering: 5+ years, including 3+ years with Go in production
Hands-on experience with distributed systems at high scale, including Kafka or a similar streaming platform
Strong understanding of eventual consistency, idempotency, retries and failure recovery in event-driven systems
Proficiency in Go concurrency and performance tuning
Experience with multi-tenant systems and tenant isolation
Solid knowledge of API and contract design with REST and/or gRPC, including versioning
Working knowledge of Google Cloud (or another public cloud), PostgreSQL and Redis
Must overlap European / UTC+4 working hours
What you will do
Design plugin contracts: APIs, lifecycle, versioning and backward compatibility
Build scalable core platform services in Go
Integrate with the Kafka event hub using idempotent processing and safe retries
Implement failure detection, recovery and graceful degradation
Design for multi-tenancy and isolation between tenants and plugins
Deliver the first plugin (gacha / wheel-of-fortune) end to end
Set standards for code review, testing, CI/CD and observability
Mentor mid-level engineers and partner with the client’s technical lead
Additional Information
Nice to have:
Plugin, extension or SDK architecture
Outbox, saga or exactly-once processing patterns
Gaming, iGaming or LiveOps background
Kubernetes (GKE) and Datadog

About Software Mind

IT Services and IT Consulting · 1,001-5,000 employees · headquartered in Krakow, Malopolskie