Senior Site Reliability Engineer (AI)

Location: Hybrid 4/1 model at offices in Warszawa, Kraków, or Poznań, Poland; includes 30 days of occasional remote work.

Company

hirify.global is an ecommerce technology company operating a large-scale platform with more than 1,000 microservices, high-throughput data and service-mesh infrastructure, and production machine learning.

What you will do

• Lead team-level projects that improve reliability across a massive distributed architecture.
• Design and implement reliability solutions, internal platforms, and infrastructure automation.
• Build an AI agent for incident response, act as a senior Incident Commander during major outages, and lead blameless post-mortems.
• Develop a self-service performance-testing platform for large-scale distributed load tests with real-time observability.
• Build automated resiliency and fault-injection capabilities and lead quarterly full Data Center failover experiments.
• Own system reliability and technical debt, mentor engineers, maintain code-quality standards, and influence architecture decisions.

Requirements

• Solid engineering background with deep knowledge of distributed systems and microservices architecture.
• Proficiency in at least one infrastructure automation, tooling, or backend language: Kotlin, Java, Python, or Go.
• Advanced hands-on experience with containerized environments, Kubernetes, Docker, networking, and service mesh concepts.
• Hands-on experience with Chaos Engineering, including fault injection and failure scenarios.
• Deep experience configuring monitoring and observability stacks such as Prometheus, Grafana, or ELK.
• Ability to identify single points of failure and act as Incident Commander during major outages.
• Strong practical knowledge of CI/CD pipelines and infrastructure managed with IaC tools.
• Ownership, a data-driven mindset, experience mentoring less experienced engineers, setting code-quality standards, and shaping architecture decisions.

Nice to have

• Practical knowledge of Gatling or similar performance-testing tooling.

Culture & Benefits

• Flexible working hours in a hybrid 4/1 model, with start times between 7:00 a.m. and 10:00 a.m., plus 30 days of occasional remote work.
• Long-term discretionary incentive plan based on hirify.global.eu shares and an annual performance- and company-results-based bonus.
• MacBook Pro or corresponding Dell equipment, accessories, ergonomic office equipment, and well-located offices.
• Cafeteria benefits including medical, sports, lunch, insurance, and purchase-voucher packages.
• Paid job-related English classes, training budget, internal learning platform, hackathons, inter-team tourism, and a volunteering day off.
• Autonomous teams, knowledge sharing, modern AI tools, self-service developer tooling, and opportunities to contribute to large-scale technology used by millions of customers.

Hiring process

• Submit a CV to apply.