Senior Agentic Engineer - Java Backend & DevOps (Gaming)

Location: Fully remote within Germany; work in the German time zone (CET/CEST). A valid German visa is required for full-time employment. Freelance opportunities are available within the German time zone.

Company

hirify.global develops and self-publishes strategy and MMO games in-house and is part of Stillfront Group.

What you will do

• Design, implement, and operate high-throughput, low-latency Java services using JDK 17+.
• Own backend systems end-to-end, including architecture, infrastructure, deployment, production operations, and scaling.
• Build resilient distributed components and tune memory usage, concurrency, and garbage collection for production workloads.
• Architect MySQL and Redis layers supporting millions of player records.
• Own CI/CD, observability, and on-call responsibilities for shipped systems.
• Develop and promote agentic engineering practices, including specifications, custom tools, generated tests, validation gates, and review standards.

Requirements

• 6+ years of backend Java development experience at an expert level.
• Strong experience with distributed systems, concurrency, garbage collection tuning, and SQL optimization.
• Deep knowledge of AWS and cloud-native technologies, including Kubernetes, Docker, and Terraform.
• Hands-on experience building and operating agentic coding workflows with multi-agent setups, custom tools, planning loops, and review gates.
• Strong analytical decomposition and architectural judgment for designing resilient systems.
• Highly proficient English and a valid German visa required for full-time employment.

Nice to have

• Gaming backend experience with matchmaking, inventories, leaderboards, or economy services.
• Event-driven architecture experience with Kafka, Kinesis, SQS, or SNS.
• Experience with real-time telemetry or anti-cheat systems.
• Published or shared work on agentic workflows, including open-source subagents, skills, or internal tooling.

Culture & Benefits

• Remote work within Germany and the German time zone.
• High autonomy in an engineering-first environment.
• Opportunity to shape agentic engineering standards across a 30+ person backend organization.
• Work on live MMO systems used by millions of players.
• Technical scope spanning Java, MySQL, Redis, AWS, distributed systems, and agentic development.

Hiring process

• Present an agentic workflow that has been built and used in practice.
• Explain the specifications, context, execution loop, failure handling, validation methods, and boundaries for unsupervised agent work.
• Screen shares, repositories, prompts, and other practical materials may be used during the discussion.