Performance Engineer @

2 weeks ago


Warszawa, Mazovia, Czech Republic SquareOne Full time

We are looking for an experienced Performance Engineer to join the Test Automation Team. The person in this role will be responsible for assessing the performance, stability, and reliability of applications and systems. Key tasks include defining performance benchmarks, designing and executing tests, and collaborating with technical teams to optimize system efficiency.

Technologies used in the project: Azure DevOps, Java, Selenide, Postman, JMeter, Spring, Allure, TestNG, Gradle

Requirements
  • Minimum 3 years of experience in performance testing and system optimization. 
  • Proficiency with performance testing tools (JMeter, Grafana, Gatling, or similar). 
  • Ability to plan system capacity and anticipate behavior under high loads. 
  • Experience in developing and optimizing performance test scripts. 
  • Strong problem-solving skills for analyzing and resolving complex performance issues. 
  • Excellent communication skills, both technical and non-technical. 
  • Good command of English (working in an international environment). 
About the Company

The company specializes in property and personal insurance, offering its services to both individual clients and businesses – from small enterprises to large organizations. It is part of a global financial group that is among the leaders in the insurance and reinsurance industry. Operating in several Central and Eastern European countries, the company employs experienced professionals across various teams.

The Delivery Team is an international organizational unit working in an Agile environment. It consists of diverse roles and teams responsible for driving the company's technological transformation. The team is composed of highly skilled IT experts working in a hybrid model across six CEE countries.

We offer:
  • Flexible working hours and hybrid model.
  • Additional 3 paid leave days per year. 
  • Shorter working hours on Fridays (7 hours).
  • Online sessions with a trainer to improve work ergonomics.
  • Private medical care.
  • Support for purchasing eyeglasses.
  • Subsidized sports card.
  • Access to an e-learning platform with thousands of courses. 
  • Group life insurance.

For candidates hired under an employment contract (UOP), all benefits are available, with a hybrid work model.

For B2B cooperation, benefits are not included, but full remote work is possible.

,[Developing performance testing strategies and test scenarios considering different types of loads. , Conducting load, stress, and endurance tests using tools such as JMeter or Grafana. , Analyzing test results to identify bottlenecks and performance issues and optimizing systems accordingly. , Forecasting system resource requirements and ensuring resilience to traffic increases. , Monitoring the performance of production systems and quickly resolving emerging issues. , Optimizing performance testing processes and introducing automation to enhance efficiency. , Collaborating with development and DevOps teams to diagnose and eliminate issues. , Sharing knowledge and mentoring junior team members. ] Requirements: Testing, Test automation, Azure DevOps, Java, Selenide, Postman, JMeter, Spring, Gradle, Grafana

  • Warszawa, Mazovia, Czech Republic Strategic Staffing Solutions Full time

    About the RoleWe are seeking a talented engineer to join our Systematic Trading Strategies Engineering team at a global investment bank. This role involves working on the development of complex indices across derivatives, including FX, Commodities, Rates, and Single Stock.As a High Performance Java Trading Engineer, you will be part of a highly skilled team...


  • Warszawa, Mazovia, Czech Republic Antal Full time

    We are seeking a seasoned software engineer to join our Curiosity Diagnostics team at Antal.This role will involve leading the development, production, and sales of high-quality diagnostic products for medical applications.Key Responsibilities:Develop software that controls and monitors device functionsDesign, implement, and optimize systems to meet industry...


  • Warszawa, Mazovia, Czech Republic Capital Full time

    We are a leading trading platform that is ambitiously expanding globally, offering top-rated products with cutting-edge technology and seamless client experiences.Our VisionWe deliver exceptional results, seeking the best talent to join our growing team. Our Backend Engineering team ensures the robustness, speed, and security of our Product, enhancing...


  • Warszawa, Mazovia, Czech Republic SquareOne Full time

    We are seeking an experienced Performance Engineer to join our Test Automation Team. The ideal candidate will be responsible for assessing the performance, stability, and reliability of applications and systems.Key responsibilities include defining performance benchmarks, designing and executing tests, and collaborating with technical teams to optimize...


  • Warszawa, Mazovia, Czech Republic AVENGA Full time

    Experience leading teams of highly skilled software engineers to successSolid practical and theoretical knowledge of modern software developmentExcellent understanding of one or more of our tech stack mentioned below plus DockerExperience building and designing scalable and performant systems, and making significant contributions to the...

  • Engineering ​Lead

    5 days ago


    Warszawa, Mazovia, Czech Republic T-Mobile Polska Full time

    Ideally, you have over 2+ years of experience as a software engineering manager, leading teams responsible for high-scale production services.You possess at least 7+ years of professional software development experience, contributing to the development of full-stack  distributed systems.You excel at aligning and executing new technical ideas,...


  • Warszawa, Mazovia, Czech Republic Mindbox S.A. Full time

    Experience leading teams of highly skilled software engineers to successSolid practical and theoretical knowledge of modern software developmentExperience with Java, Spring, Microservices, Docker and Cloud (AWS or/and GCP) would be desirable, but not mandatoryExperience building and designing scalable and performant systems, and making significant...


  • Warszawa, Mazovia, Czech Republic Antal Full time

    8+ years of experience in C++ development, with at least 3+ years in a technical leadership roleStrong knowledge of C++ (C++11/14/17/20/23/26), STL, memory management, multithreading, and performance optimizationExperience designing scalable and high-performance architecturesStrong problem-solving and analytical skillsExperience leading engineering teams and...

  • Data Engineer Lead

    6 days ago


    Warszawa, Mazovia, Czech Republic Global Payments Full time

    Job SummaryWe are seeking a highly skilled Data Engineer Lead to join our team at Global Payments. In this role, you will be responsible for designing, implementing, and testing data pipelines from extract to consumption, ensuring scalable, high-performance delivery into our GPN Data Lakehouse.About the RoleThis is a journey-level position that requires a...


  • Warszawa, Mazovia, Czech Republic Sii Polska Full time

    We are seeking an exceptional Site Reliability Engineer to join our team at Sii Polska. As a key member of our Mobility Platforms group, you will play a vital role in ensuring the reliability, telemetry, observability, performance, maintainability, and quality of our systems.Key ResponsibilitiesManage observability, problem management, and incident response...


  • Warszawa, Mazovia, Czech Republic Pragmile Full time

    What we expect: Experience of working with big data, data engineering tools for data ingestion, transformations, querying Strong understanding of data structures and algorithms Strong understanding of object design and integration patterns Proven experience of using python for building data processing platforms/applications Experience in building distributed...


  • Warszawa, Mazovia, Czech Republic Global Payments Full time

    Minimum QualificationsBS in Computer Science, Information Technology, Business / Management Information Systems or related fieldExperience in lieu of degree will be consideredTypically minimum of 4 years of strong development background in ETL tools like GCP-Data Flow , PySpark , SSISExperience in Google cloud platform - GCP Pub/Sub, Datastore, BigQuery,...


  • Warszawa, Mazovia, Czech Republic Uncapped Full time

    We're looking for a talented engineer to join our team at Uncapped. As a software engineer, you will play a key role in designing, developing and maintaining high-performance applications using the latest Java and Spring framework versions.The ideal candidate will have a strong passion for microservices architecture, automated testing, and continuous...


  • Warszawa, Mazovia, Czech Republic AVENGA Full time

    At AVENGA, we are seeking an experienced Technical Leader to join our engineering organization.Company OverviewWe specialize in software development and aim to deliver cutting-edge solutions that meet the needs of our clients from the banking industry.Job DescriptionThis is a unique opportunity for a seasoned Engineering Manager to lead teams of highly...


  • Warszawa, Mazovia, Czech Republic SambaTV Full time

    5+ years of experience in Data Engineering, Software Engineering, or a related field.Must-have expertise in Apache Airflow, Databricks, and PySpark for orchestration, scalable data processing, and transformation.Expertise in Python or strong proficiency in another modern programming language with a willingness to master Python.Deep understanding of...

  • Java Engineer @

    6 hours ago


    Warszawa, Mazovia, Czech Republic Uncapped Full time

    3+ years of hands-on experience in modern Java frameworks and methodologies, with a strong focus on the Spring framework.Familiarity with RESTful APIs and cloud-based infrastructure.Writing high-quality automated testsAbility to work independently in a remote environment with occasional in-person meetings (2 days per week) in small self-managed teams built...

  • DevOps Engineer @

    1 week ago


    Warszawa, Mazovia, Czech Republic SquareOne Full time

    Must-haves:Proficiency in Kubernetes, Docker, Azure DevOps, TeamCity, and GIT Basic knowledge of PowerShell and Bash Familiarity with GCP (Kubernetes Engine, BigQuery, IAM & Admin) Strong organizational skills, multitasking abilities, and attention to detail Good verbal and written English communication skills Passion for efficiency and continuous...


  • Warszawa, Mazovia, Czech Republic monday Full time

    Proven working experience and deep understanding of RDBMS (MySQL / PostgreSQL/ Oracle / SQL Server / etc).Experience of at least 5+ years with performance optimization and scaling out data worldwide.Coding experience and understanding of code and software environment.Experience and understanding of cloud environments and toolsExperience in leading projects,...


  • Warszawa, Mazovia, Czech Republic SambaTV Full time

    Job DescriptionSamba TV is a pioneer in data-driven insights, revolutionizing the way media companies connect with audiences and advertisers engage with viewers. As a Tech Lead - Data Engineering, you will spearhead the development of scalable, high-performance data pipelines that power our analytics and insights.About UsWe are on a mission to fundamentally...


  • Warszawa, Mazovia, Czech Republic Sii Polska Full time

    Bachelor's degree in IT, Engineering, or related field (or equivalent experience)At least 7 years in IT, including minimum 5 years in SRE or DevOpsExperience in microservices platform managementStrong knowledge of multicloud environments (AWS, Azure)Proficiency in debugging, troubleshooting, and distributed systemsHands-on expertise with IaaS, GitOps, and...