Software Engineer Performance

Software Engineer (Performance)

Location: Wrocław / Rzeszów / Łódź / Warszawa

Work model: Hybrid (approximately 80% remote work, 20% office presence)

Responsibilities

As part of the Performance Engineering team, you will contribute to the development and continuous improvement of a large-scale cloud platform, focusing on performance, scalability, and reliability. You will evaluate new technologies, tools, and engineering approaches before their adoption and support performance validation of existing solutions to ensure they operate efficiently under real-world workloads.

• Analyze performance bottlenecks and identify root causes across distributed system components in high-load environments handling large volumes of traffic.

• Collaborate with development teams to continuously assess and improve platform performance.

• Design, develop, and execute load and performance tests in close cooperation with architects and engineering stakeholders.

• Evaluate existing and new platform components from a performance, scalability, and resilience perspective.

• Develop and maintain infrastructure dedicated to performance and load testing activities.

• Create, enhance, and maintain automated performance tests, reports, dashboards, and monitoring solutions.

• Support engineering teams in implementing performance best practices and optimization initiatives.

Requirements

• 5+ years of experience in Software Engineering, Performance Engineering, Site Reliability Engineering, or a related field.

• Hands-on experience with load testing, performance analysis, and scalability improvements.

• Strong analytical and problem-solving skills, including hypothesis creation, experiment design, metric definition, and result interpretation.

• Experience working with high-scale backend systems and distributed architectures.

Technical Skills

• Strong programming skills in Java; experience with Scala, Go, Python, or TypeScript is considered an advantage.

• Experience with backend applications, messaging systems, asynchronous processing, reactive programming, and databases.

• Knowledge of Infrastructure as Code tools such as Terraform or Ansible.

• Experience with observability and monitoring solutions (e.g., Prometheus, ELK stack, APM tools).

• Familiarity with REST API load testing tools and frameworks.

• Experience with GitHub and CI/CD pipelines, including GitHub Actions.

• Understanding of Site Reliability Engineering (SRE) principles and practices.

• Experience working in Agile environments (Scrum, Kanban, SAFe, Pair Programming).

Additional Requirements

• Strong communication skills in English.

• German language skills are considered a plus.

• Curiosity, ownership mindset, and willingness to continuously learn new technologies and engineering practices.

What We Offer

• Opportunity to work on large-scale, high-traffic cloud systems serving millions of users.

• Exposure to modern technologies and engineering practices.

• Participation in architecture discussions and technical decision-making.

• Stable employment within an international engineering environment.

• Private healthcare and sports package.

• Flexible working hours.

• Hybrid work model (80% remote / 20% office).

• Professional growth and continuous learning opportunities.

Why apply for an Antal job offer?

When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process.

About Antal

Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research.

Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

Discover our latest job openings: https://en.antal.pl/candidates
Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland