About the role

Aplyr's Quick Take

This role is about leading the quality assurance efforts focused on performance and reliability for enterprise applications. You'll be designing and executing tests, analyzing system performance, and collaborating with engineering teams to ensure applications meet high standards. It's primarily an individual contributor role with some mentoring responsibilities.

Good fit

Ideal candidates have extensive experience in application development and quality engineering, particularly with Java and performance testing. A hands-on, detail-oriented approach and familiarity with CI/CD practices will help you thrive here.

Worth noting

The position emphasizes advanced performance testing in a regulated payments environment, which may be a unique challenge for some. The role also requires strong collaboration across teams, which could be a red flag for those who prefer more independent work.

We are FIS. Our technology powers the world’s economy and our teams bring innovation to life. We champion diversity to deliver the best products and solutions for our colleagues, clients and communities. If you’re ready to start learning, growing and making an impact with a career in fintech, we’d like to know: Are you FIS?

About the Role

As a Non-Functional Engineer Lead, Quality, you lead the strategy and execution of performance, reliability, and resilience engineering for enterprise-grade applications. You ensure systems meet demanding non-functional requirements across scale, availability, and security in a regulated payments environment. Success is measured by predictable performance, high availability, and production stability across complex distributed systems. This role is based in Warsaw, Poland.

What You Will Be Doing

Lead non-functional quality strategy across performance, scalability, resilience, and availability.
Design and execute performance, load, stress, and endurance testing for critical applications.
Analyze system behavior using monitoring and observability tools to identify bottlenecks.
Partner with engineering and architecture teams to embed quality early in the SDLC.
Drive performance optimization across Java applications, databases, and middleware.
Establish CI-driven quality gates using automated unit, integration, and non-functional tests.
Validate application behavior across application servers and containerized environments.
Troubleshoot complex production issues and lead root-cause analysis.
Mentor engineers on non-functional testing practices and quality engineering standards.

Required Qualifications

Extensive hands-on experience in application development and quality engineering.
Strong expertise in Java (JDK 8/17), JEE, Maven, Hibernate, EJB 3.1, MQ, SQL, REST, XML, XSD, and JSON.
Proven experience monitoring and analyzing application performance characteristics.
Advanced skills in designing performance, high availability, and resilience tests.
Experience with continuous integration using Jenkins and automated test frameworks.
Solid knowledge of application servers including WebSphere, WebLogic, JBoss, and Open Liberty.
Strong database expertise with Oracle or PostgreSQL, including performance tuning.
Proficiency working in Linux-based environments and container platforms.

Preferred Qualifications

Experience with Docker and Kubernetes in production environments.
Knowledge of Kafka or event-driven architectures.
Experience in payments domains such as SEPA or SWIFT messaging.
Advanced REST API design and optimization experience.
Deep PostgreSQL performance and scalability expertise.

What We Offer you

Opportunities to make an impact in fintech
Personal and professional learning
Inclusive, diverse work environment
Resources to give back to your community
Competitive salary and benefits

Privacy Statement

FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the Online Privacy Notice.

Sourcing Model

Recruitment at FIS works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. FIS does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.

#pridepass

Aplyr's read

FIS is a global financial technology leader, attracting professionals in software, analytics, and sales, dedicated to advancing banking, merchant, and capital market solutions.
Synthesized from recent postings & public sources

What's promising

•FIS offers diverse career opportunities across global locations, including roles in technology, sales, and analytics.
•The company is a leader in financial services technology, providing innovative solutions to major financial institutions.
•FIS invests in cutting-edge technology, such as AI and machine learning, enhancing its product offerings.

What to watch

•FIS faces intense competition from other financial technology firms, impacting market share.
•The company has undergone significant restructuring, which may affect job stability.
•Complexity in global operations can lead to challenges in coordination and communication.

Why FIS

•FIS has a strong focus on integrating advanced technologies like AI into financial services.
•The company provides comprehensive solutions across banking, merchants, and capital markets, offering a broad industry impact.
•FIS supports a wide range of financial institutions, from small banks to large capital markets, showcasing its versatility.

Aplyr’s read is generated by AI from public sources. Was it useful?

About FIS

FIS

fisglobal.com

View company

FIS is a global leader in financial services technology, providing software, services, and technology solutions for merchants, banks, and capital markets firms.