{"id":2112833,"url":"https://alion.io/job/ework-group-performance-tester-jmeter-short-term-contract","title":"Performance Tester - JMeter - Short-term Contract","company":{"id":2379568,"name":"Ework Group","domain":"eworkgroup.com","url":"https://alion.io/company/eworkgroup","size_band":null,"is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"QA","role_family":"QA","seniority":"senior","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":130,"max":150,"currency":"PLN","period":"hour","gross":null,"usd_annual":76000},"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Azure","optional":false},{"name":"JMeter","optional":false},{"name":"Windows","optional":false},{"name":".NET","optional":true},{"name":"Apache HTTP Server","optional":true},{"name":"Azure DevOps","optional":true},{"name":"C#","optional":true},{"name":"Dynatrace","optional":true},{"name":"Grafana","optional":true},{"name":"Jira","optional":true},{"name":"MS SQL","optional":true},{"name":"Playwright","optional":true},{"name":"Postman","optional":true},{"name":"PowerShell","optional":true},{"name":"SoapUI","optional":true},{"name":"SQL","optional":true}],"status":"live","first_seen_at":"2026-09-17T12:04:13Z","employer_posted_date":null,"last_verified_at":"2026-09-17T12:04:13Z","board_verified":false,"closed_at":null,"days_open":26,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":26},"description":"We are looking for a Senior Performance Tester 🔹\n\nLocation: Warsaw. Poland – remote, hybrid or on-site.\n\nStart date: ASAP\n\nEnd client: Polish public sector organization in the education field\nType of agreement: B2B contract, temporary assignment (4–5 months); no confirmed extension at this stage\n\nEwork Group — founded in 2000, listed on Nasdaq Stockholm, with around 13,000 independent professionals on assignment — we are the total talent solutions provider who partners with clients, in both the private and public sector, and professionals to create sustainable talent supply chains.\nWith a focus on IT/OT, R&D, Engineering and Business Development, we deliver sustainable value through a holistic and independent approach to total talent management.\nBy providing comprehensive talent solutions, combined with vast industry experience and excellence in execution, we form successful collaborations. We bridge clients and partners & professionals throughout the talent supply chain, for the benefit of individuals, organizations and society.\nWe offer:\n\nB2B agreement\n\nTransparent working conditions with both Ework and the client\n\nCurrent support during our cooperation\n\nPossibility to work in an international environment\n\nCollaborative environment in Swedish organizational culture\nZakres obowiązków\nDefine the performance testing strategy — objectives, workload models, test scenarios, entry/exit criteria and acceptance thresholds\nSet up and maintain the performance testing framework for web applications, web services and supporting Windows Services\nCreate and execute performance test scripts, analyzing and comparing them against real browser/application traffic (connection handling, session management)\nDesign realistic workload models and recommend innovative performance testing approaches\nRun tests on the PROD environment within agreed maintenance windows, and analyze the results\nDesign, configure and troubleshoot distributed load-generation environments across on-premises machines and Azure virtual machines, considering capacity, connectivity and security\nManage test data and test environments, working with infrastructure teams to prepare and validate PREPROD/PROD environments hosted in external data centers\nAnalyze application, database and infrastructure performance metrics, identify bottlenecks and prepare actionable recommendations\nWymagania\nRequirements & Preferred experience\n\nFluent Polish\n\nExperience in requirement analysis, test case design and test execution\n\nAt least 6 years of hands-on performance testing experience\n\nStrong hands-on experience with Apache JMeter — maintaining, extending and executing performance test scripts\n\nExperience testing monolithic web applications built on .NET and Microsoft SQL Server, including Windows Services\n\nPractical knowledge of:\n\n - 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