performance engineer

Cisco in Kraków seeks a Senior Performance Engineer to own end-to-end performance optimization for a large distributed data platform. You will drive hypothesis-driven work, instrument signals, and ship measurable customer impact in memory, I/O, and tail latency.Apply advanced profiling tools, CI pipelines, and container tech to prevent regressions, while...

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the...

Oho Group, recruiting on behalf of a leading international software company, seeks an exceptional C++ Software Engineer based in Poland. This technically demanding role emphasizes solving difficult problems, independent work, and software where performance and quality matter.You'll design and develop complex C++ software, tackle algorithmic challenges,...

NVIDIA is seeking engineers who love building world-class infrastructure, from automated command-line scripting to full-blown CI/CD systems running on some of the world's largest clusters, to support our work to accelerate training of deep neural networks like Stable Diffusion or ChatGPT via hardware and software innovations. If you have that itch whenever...

NVIDIA is seeking engineers who love building world-class infrastructure, from automated command-line scripting to full-blown CI/CD systems running on some of the world's largest clusters, to support our work to accelerate training of deep neural networks like Stable Diffusion or ChatGPT via hardware and software innovations. If you have that itch whenever...

Senior Performance Test Engineer - k6 & JavaScript Location: WarsawContract Type: Contract Job Type: Hybrid Lead performance testing initiatives using k6 and modern JavaScript frameworks Work with cutting-edge cloud infrastructure including Docker, Kubernetes and AWS/Azure/GCP Influence technical direction across global, distributed engineering teams Shape...

BELVEDERE in Warszawa is seeking a Senior Performance Test Engineer to lead automated performance testing using k6 and JavaScript River ES6+. You will design testing frameworks, test REST/GraphQL APIs and web apps, and integrate testing into CI/CD with GitHub Actions, GitLab CI, Azure DevOps, or Jenkins.You will analyse metrics with...

CSHARK is seeking a Senior Performance Test Engineer to own performance testing across an international project. You will drive the process from requirements and test-data preparation to execution, analysis and final recommendations, using k6 scripts and modern tooling.You will craft workload models, test REST APIs, and parameterise tests in Azure DevOps...

Diverse CG Sp. z o.o. Sp.k. is seeking a Senior Performance Tester to design, develop and execute performance testing scripts. The ideal candidate will have over 4 years of performance testing experience and strong expertise in LoadRunner Enterprise.The role involves conducting various types of performance testing, monitoring application performance, and...

AI Performance Principal Software Engineer Ampere is a semiconductor design company for a new era, leading the future of computing with an innovative approach to CPU design focused on high-performance, energy efficient AI compute. As a pioneer in the new frontier of energy efficient high-performance computing, Ampere is part of the Softbank Group of...

Position: Performance EngineerLocation: ElblągType of work: hybrid (3 days per week in office)Salaries: base+ financial bonus Responsibilities:Gathering sub-system predictions of component behaviour for integration into system level predictions using thermodynamic modelsTo develop and maintain a functional understanding of the propulsion system of the...

DescriptionDo you thrive on collaborating across teams to solve complex problems?Are you passionate about tackling large-scale distributed computing and global traffic engineering challenges that impact how the Internet performs?Join our world-class Mapping Strategy teamOn the Mapping Strategy team, we engineer global traffic flows and allocate capacity...

Auctane in Poland (Wroclaw) is seeking a Database Engineer (DBE) to design, implement, and optimize Oracle-based data infrastructure, ensuring availability and performance for critical applications.The role collaborates with IT and development teams, requires hands-on Oracle DB administration, RMAN, Linux, and strong SQL skills, and includes on-call...

Location: PL-24-WROCLAW-011 ~ Bierutowska St 60-65 ~ BLDG 11 Date Posted: 2026-09-25 Country: Poland Location: PL-24-WROCLAW-011 ~ Bierutowska St 60-65 ~ BLDG 11 Position Role Type: Hybrid Collins Aerospace jest liderem w dziedzinie zaawansowanych technologicznie, inteligentnych rozwiązań, które pomagają na nowo zdefiniować przemysł lotniczy i obronny....

XM is seeking an experienced SDET (Software Development Engineer in Test) with strong Python skills to join the QA team in Poland. The role focuses on test automation framework development and extending test coverage for functional and performance suites of a Forex brokerage core, including API testing and CI/CD integration.You will collaborate closely with...

Date Posted: 2026-08-20 Country: Poland Location: PL-24-WROCLAW-011 ~ Bierutowska St 60-65 ~ BLDG 11 Position Role Type: Hybrid Collins Aerospace jest liderem w dziedzinie zaawansowanych technologicznie, inteligentnych rozwiązań, które pomagają na nowo zdefiniować przemysł lotniczy i obronny. Dzięki kompleksowemu portfolio i głębokiej wiedzy...

Veeam Software, based in Warsaw, seeks a Performance QA Engineer to join the R&D team. You will design and execute performance, load, and scalability tests for major components, building realistic enterprise test environments and collaborating with developers and product managers.This role emphasizes scalability and reliability in diverse environments....

Coherent Solutions is seeking a QA Automation Engineer to join our performance testing initiative for a middleware service layer powering a connected device platform. You will work within a team to execute, script, and maintain tests using JMeter, focusing on backend services, REST APIs, and microservices.Join a flexible, remote-friendly environment with...

A leading technology company in Warsaw is seeking a Software Engineer specializing in performance, reliability, and observability. The ideal candidate possesses a PhD in a relevant field and strong programming skills. Responsibilities include conducting performance analysis, designing benchmarks, and contributing to industry publications. This role offers an...

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the...