Dream Big. Go Beyond. Be Unstoppable.
Kyriba is a global fintech leader empowering CFOs and finance teams with cloud-based treasury, payments, and risk management solutions. We serve 3,000+ customers worldwide, managing $15 trillion in payments annually and helping businesses optimize liquidity performance across the enterprise.
We're on a mission to become the most sought-after cloud technology company globally. We think big, innovate relentlessly, and challenge the status quo every day. If you are a problem-solver who’s ready to push boundaries and achieve more than you thought possible-you'll find an exceptional career within an extraordinary business.
Location: Warsaw-hybrid
The Senior Performance Test Engineer will own performance engineering outcomes for complex distributed systems (web applications, APIs, and microservices). This role is responsible for defining non-functional requirements and performance KPIs, and for leading root-cause analysis in close partnership with Engineering, SRE, Platform, and Product teams.
You will also design and build reusable performance testing frameworks and tooling that can be integrated into the CI/CD pipelines used by our engineering teams, enabling scalable and consistent performance validation across products.
Finally, you will act as a mentor and enabler for multiple agile teams, helping them build the capability to create, run, and maintain performance tests as part of feature delivery and refactoring—so performance becomes an embedded part of our engineering culture.
Key responsibilities:
Build and maintain performance test frameworks using tools such as JMeter/Gatling/Locust, with reusable modules and automation-first, CI-ready execution.
Define and execute performance strategies including load, stress, endurance/soak, spike, scalability/capacity, and batch workload performance testing, based on production usage patterns and business-critical journeys.
Partner with Product/SRE/Engineering to define and evolve NFRs/SLOs/SLIs (p95/p99 latency, throughput, error rate, saturation) and translate them into scenarios, pass/fail thresholds, and regression detection.
Define performance test environments (sizing, parity, dependencies, realistic data volumes) and coordinate with Platform/Infra to ensure readiness and repeatability.
Establish CI/CD performance gates (thresholds, trend analysis, reporting), and automate execution, reporting, and artifact retention/integration with pipelines and relevant tools.
Perform root-cause analysis of regressions and scalability failures; drive fixes with teams and verify improvements via targeted re-tests and controlled experiments.
Use JVM diagnostics where relevant (e.g., JProfiler, Java GC understanding, heap/thread dump analysis) and leverage observability/APM (Datadog is a plus) to correlate results with system signals.
Mentor and enable multiple agile teams with templates, reference implementations, reviews, and playbooks so performance testing becomes part of each team’s Definition of Done.
Required qualifications:
8–10 years in performance testing/engineering using at least one tool (JMeter/Gatling/Locust) with strong hands-on experience.
Proven ability to build and maintain reusable test frameworks with gates, thresholds, and regression detection/trending.
Experience performance testing distributed systems and creating realistic workload models from production patterns.
Hands-on experience across various performance testing strategies with clear entry/exit criteria and actionable analysis.
Preferred qualifications (Nice-to-have)
JVM profiling and diagnostics (JProfiler, GC, heap/thread dumps).
APM/observability expertise.
Experience with Kubernetes, Docker, and cloud CI/CD (e.g., AWS).
Our Values Guide Everything We Do
Think Big & Constantly Innovate: We have the confidence to think big, embrace change, challenge the status quo, and continuously evolve - incorporating new technologies and driving industry progress.
Put our Customers’ Needs First: We are passionate about delivering the highest value for our customers and supporting them with end-to-end care throughout their journey with us.
Act with Integrity: Integrity is at the heart of everything we do. We take personal responsibility for our actions, own our decisions, and honour each other’s contributions. We empower each other through honesty, respect, trust and transparency.
Work as One Team: We are driven by our common goals and share in each other’s successes and failures, learning and working together as a team where everyone can bring their best selves.
Strive for Excellence while Having Fun: We enjoy tackling new challenges together, and revel in continuous improvement as we deliver, with ultimate professionalism, the very best for our customers, while exceeding our own expectations.
Kyriba offers a comprehensive compensation package, including a range of health, welfare and wellbeing benefits designed to support both your professional and personal life.
Kyriba believes that everyone has the ability to make an impact, and we are proud to be an equal opportunity employer committed to providing employment opportunity regardless of sex, race, creed, color, gender, religion, marital status, domestic partner status, age, national origin or ancestry, physical or mental disability, medical condition, sexual orientation, pregnancy, military or veteran status, citizenship, and genetic information.
If you require a reasonable accommodation to complete any part of the application or interview process, or to perform essential job functions, please contact us at [email protected]. Requests will be handled confidentially and in accordance with applicable local laws.
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What We Do
Kyriba treasury software is comprised of a set of powerful products that span treasury, risk, payments and working capital. Try Now!
