Engineering Manager (Java)

B2Spin Limited; Polska; On-site; PLN 621,000 - 777,000; Full time

Job summary

B2Spin Limited seeks an experienced Java Engineering Manager to lead Data Activation teams for its high-load, real-time social gaming platform. You will balance technical credibility with people development, delivering reliable software and lifting engineering standards.

You will own delivery outcomes, develop your people, and champion platform reliability, while partnering with Product Managers and analysts to remove blockers and drive strategic initiatives.

Qualifications

• Substantial backend engineering experience in Java ecosystem with strong fundamentals.
• Experience designing and operating high-load, event-driven, cloud-native systems at scale.
• Proven track record in leading teams delivering complex production systems.

Responsibilities

• Own delivery outcomes — coordinate priorities across cross-functional teams and ensure commitments.
• Develop your people — conduct performance reviews and invest in growth.
• Champion engineering standards — enforce architecture quality and pragmatic tradeoffs.
• Enable smooth execution — collaborate with Product Managers and analysts to prevent blockers.
• Drive continuous improvement — refine planning and coordination as teams grow.
• Strengthen platform reliability — lead incident response and post-mortems to improve systems.

Skills

Java backend

System design

Engineering leadership

Incident response

Product sense

Delivery ownership

Tools

Kafka

Kubernetes

GCP

ArgoCD

Redis

AlloyDB

Job description

About B2Spin

We are B2Spin, and we are dedicated to delivering the best 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.

The role

B2Spin is looking for a Java Engineering Manager to lead our Data Activation teams as we scale our Free-to-Play Social Casino platform. This is a hands-on leadership role for someone who can balance technical credibility with people development — driving reliable delivery, raising engineering standards, and building the conditions for teams to do their best work. If you're motivated by building high-load, real-time systems and developing the people who build them, this role is for you.

What You'll Do

• Own delivery outcomes — coordinate priorities across cross-functional teams, keep commitments on track, and ensure the right things get built reliably and on time
• Develop your people — run meaningful performance reviews, invest in career growth, and handle people challenges with clarity and care
• Champion engineering standards — hold the bar on architecture patterns and code quality while making pragmatic trade-off decisions in complex, fast-moving environments
• Enable smooth execution — partner with Product Managers, analysts and other stakeholders to ensure initiatives are well-defined and teams can move without blockers
• Drive continuous improvement — refine how teams plan and coordinate as the organisation grows, making effectiveness a habit rather than a project
• Strengthen platform reliability — lead incident response, root-cause analysis, and follow-through on improvements that make systems more resilient over time

What We're Looking For

• Substantial backend engineering experience with deep expertise in the Java ecosystem and a strong foundation in software development fundamentals. Frontend experience is a big plus.
• System design fluency — proven experience building and operating high-load, event-driven, cloud-native systems at scale
• Engineering leadership track record — experience leading teams delivering complex production systems, balancing technical direction with people management
• Production operations experience — comfortable in incident response, post-mortems, and translating learnings into platform improvements
• Sharp product sense — able to engage meaningfully with product initiatives, surface engineering risks, and spot what's missing before it becomes a problem
• Delivery ownership — skilled at scoping work realistically, aligning stakeholders, and communicating trade-offs with confidence

Nice To Have

• Background in iGaming, fintech, or other high-throughput, real-time platforms
• Experience making the transition from a senior IC role (Tech Lead, Staff Engineer, Principal, or Solution Architect) into people leadership
• Hands-on familiarity with Kafka, Kubernetes, or GCP

Our Tech Stack

• Java 25
• Spring Boot 4
• Google Cloud Platform
• Kubernetes, ArgoCD
• Kafka
• AlloyDB for PostgreSQL
• Redis/Memcached/Valkey
• Github
• ELK/Sentry/Grafana
• Jira/Confluence/Slack

Our values

At B2Spin, we're here to revolutionise an industry — and that takes passion for building things that genuinely matter. We move with purpose: we value accountability, transparency, and progress over perfectionism, and we expect everyone on the team to hold that standard.