B2SPIN

Gaming

StaffBackendEngineer

$1200–2000k ~AI est. Ukraine FULL TIME
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Staff Backend Engineer at B2SPIN. Skills: Java internals, Distributed systems, Event streaming, AI integration. Design core libraries. Evolve core libraries”

What You'll Achieve.

Handle massive throughput; Low latency

Industry & Context.

Gaming
Problems you'll solve

Troubleshooting; Debugging; Performance bottleneck investigation

What They're Looking For.

Must Have

Deep Java internals understanding, Advanced relational databases knowledge, High-throughput event streaming knowledge, System design capabilities, Troubleshooting capabilities, Debugging capabilities, Comfortable using AI coding assistants, Practical experience refining AI output, Upper-intermediate English level

Nice to Have

Building shared libraries experience, Maintaining shared libraries experience, Building internal tooling experience, Maintaining internal tooling experience, Hands-on APM tools experience, Hands-on observability stacks experience

What You'll Do.

Design core libraries

Evolve core libraries

Maintain core libraries

Design framework extensions

Evolve framework extensions

Maintain framework extensions

Design shared components

Evolve shared components

Maintain shared components

Take ownership system performance

Take ownership scalability

Take ownership high-load architecture

Ensure core services handle throughput

Monitor production behavior

Investigate performance bottlenecks

Introduce advanced metrics

Introduce alerting systems

Establish best practices concurrency

Establish best practices memory management

Establish best practices resource utilization

Collaborate with cross-functional teams

Take ownership functional areas

Leverage AI assistants

Contribute maintaining test coverage

Contribute maintaining predictable behavior

Contribute maintaining seamless scalability

Drive engineering excellence

Drive continuous improvement

How You'll Work.

Team & Collaboration

Cross-functional teams; Backend teams; Web teams; Mobile teams; QA teams; Product teams

Full Job Description

ABOUT B2SPIN We are B2Spin, and we are dedicated to delivering the best Free-to-Play Social Casino and gaming experiences by creating captivating, engaging, and unique products that are accessible to everyone. We have built a team of talented professionals from all over the globe, who are working to continually improve the experiences of our players. We are not looking to just be part of the industry, but to revolutionize it. AI-DRIVEN ENGINEERING CULTURE We are actively building an AI-driven engineering organization with a clear and deliberate stance: artificial intelligence is a core part of how we build and deliver software — not an experiment, not a trend, and not an optional add-on. AI is embedded into our engineering workflows, from system design and prototyping to refactoring, testing, and code review. We expect engineers to be fully comfortable working in AI-driven environments and to treat AI as a primary productivity multiplier. Strong engineering judgment, architectural ownership, and accountability remain essential—AI amplifies our engineers, it doesn’t replace responsibility for technical decisions. What you will be doing • Design, evolve, and maintain core libraries, framework extensions, and shared components used across all engineering teams • Take ownership of system performance, scalability, and high-load architecture, ensuring core services can handle massive throughput with low latency • Proactively monitor production behavior, investigate complex application/database performance bottlenecks, and introduce advanced metrics, dashboards, and alerting systems • Establish and advocate for best practices in concurrency, memory management, and resource utilization across the backend ecosystem • Collaborate with cross-functional teams including backend, web, mobile, QA, and product teams • Take ownership of specific functional areas within our large-scale architecture • Leverage AI tools and assistants as integral parts of your development workflow—from

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