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IT Performance Engineer Poland Jobs

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Engineering Team Leader - Full Stack / Web Performance
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Lead a new, cross-functional Ad Display team as a hands-on Engineering Team Leader. You will drive web performance and full-stack development at a massive scale, processing 20M+ requests per second. We seek a leader with 10+ years of engineering experience and expertise in frontend, backend, and ...
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Poland
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Not provided
rtbhouse.com Logo
RTB House
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Until further notice
Senior Full Stack/Web Performance Engineer
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Join RTB House as a Senior Full Stack/Web Performance Engineer in Poland. You will build high-performance, scalable ad display solutions using JavaScript/TypeScript, React, and Node.js/Python. Focus on optimizing critical web vitals (LCP, INP, CLS) through advanced performance techniques and RUM ...
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Poland
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Not provided
rtbhouse.com Logo
RTB House
Expiration Date
Until further notice
Senior Full Stack/Web Performance Engineer
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Join RTB House as a Senior Full Stack/Web Performance Engineer in Poland. Drive extreme performance and scalability for our global ad display systems using JavaScript/TypeScript, React, and Node.js/Python. Optimize critical web vitals (LCP, INP, CLS) and leverage RUM tools in a cutting-edge, Deep...
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Location
Poland
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Salary
Not provided
rtbhouse.com Logo
RTB House
Expiration Date
Until further notice
Looking for IT Performance Engineer jobs? This specialized and critical role sits at the intersection of software engineering, quality assurance, and systems architecture, focused on ensuring that applications and services are not just functional, but exceptionally fast, scalable, and reliable. Professionals in this field are the guardians of user experience and system efficiency, dedicated to pushing technology to its limits to meet the demands of modern digital ecosystems. An IT Performance Engineer typically engages in a cycle of measurement, analysis, and optimization. Their core responsibility is to design and execute sophisticated performance tests—including load, stress, endurance, and scalability testing—using industry-standard tools. They simulate real-world user traffic and extreme conditions to identify breaking points and bottlenecks before they impact customers. Beyond just running tests, they dive deep into system behavior using advanced observability platforms, analyzing metrics, logs, and traces to pinpoint the root cause of latency, memory leaks, database inefficiencies, or network congestion. Their work is deeply collaborative; they partner closely with development, DevOps, and site reliability engineering (SRE) teams to implement fixes, optimize code, refine architecture, and enhance infrastructure. Common responsibilities across IT Performance Engineer jobs include architecting and maintaining automated performance testing frameworks integrated into CI/CD pipelines, establishing performance benchmarks and service level objectives (SLOs), and creating comprehensive monitoring and alerting strategies. They produce detailed reports and dashboards that translate technical data into actionable business insights, effectively communicating risks and improvement opportunities to both technical peers and leadership. Typical skills and requirements for this profession are both broad and deep. A strong foundation in software engineering with proficiency in languages like Python, Java, or JavaScript is essential, alongside expertise in performance testing tools such as JMeter, k6, Gatling, or Locust. A deep understanding of distributed systems, cloud infrastructure (AWS, Azure, GCP), containerization (Docker, Kubernetes), and networking principles is crucial. Candidates are expected to have experience with observability stacks like Prometheus, Grafana, Datadog, or New Relic. Soft skills are equally important, including analytical problem-solving, meticulous attention to detail, and the ability to articulate complex performance concepts clearly. A background in software development, QA automation, or DevOps is a common pathway into these roles. Ultimately, IT Performance Engineer jobs are for those passionate about the marriage of quality and speed. It’s a career built on continuous learning and technical rigor, offering the satisfaction of directly impacting product resilience, customer satisfaction, and business success in an increasingly performance-driven world.

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