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Senior Software Performance Test Engineer

Itron

Itron

Quality Assurance
Budapest, Hungary
Posted on Nov 27, 2025

Itron is innovating new ways for utilities and cities to manage energy and water. We create a more resourceful world to protect essential resources for today and tomorrow. Join us.

We are seeking an experienced Senior Software Performance Test Engineer to enhance our technology capabilities and drive innovation in Advanced Metering Infrastructure (AMI) and Internet of Things (IoT) solutions. In this role, you will ensure the performance, scalability, and reliability of Itron’s next-generation Advanced Metering Platform—an essential component of our smart grid and IoT ecosystem. Your work will directly impact millions of connected devices across customer deployments, shaping the future of smart infrastructure.

You will collaborate in a modern development environment using a modern technology stack, including Oracle, Splunk, Java JVM, Linux, ELK, Azure, AWS, and more. This position offers an opportunity to contribute to solutions that create a more resourceful world.

Responsibilities

  • Review requirements, specifications, and design documents to provide constructive, timely feedback on performance and scalability.

  • Define acceptance criteria where specifications lack sufficient detail.

  • Collaborate with developers on high-level design to ensure performance considerations are integrated early.

  • Create detailed, comprehensive, and well-structured test plans and test cases.

  • Organize and update existing test cases to maintain clarity and avoid duplication.

  • Develop and maintain automated test scripts for performance monitoring.

  • Conduct performance testing to validate resource sizing (memory, CPU, IOPS) in SaaS and Cloud environments.

  • Execute experimental tests using varied product settings (threads, queue sizes, consumers, producers) to identify optimal configurations.

  • Diagnose performance issues such as bottlenecks, memory leaks, and unoptimized SQL statements using tools like Oracle reports, Splunk, and performance metrics.

  • Collaborate closely with development teams to identify, monitor, resolve, and validate performance issues across complex enterprise environments.

Requirements

  • 7+ years of rich experience in testing of large, multi-component software products

  • Experience with application cloud deployment and configuration (Azure, AWS, or GCP)

  • Experience using data gathering and troubleshooting tools, such as Splunk or ELK

  • Deep understanding of Java JVM, including garbage collection, GC logs, and tuning concepts

  • Ability to work in a Linux environment

  • A passion for product performance, scalability, and quality, with a "prevent it, instead of break it" attitude

  • Strong analytical and problem-solving skills with a proactive approach to quality and scalability.

  • Ability to communicate technical performance concepts clearly across diverse teams.

Nice to have

  • Experience with APM products, such as AppDynamics, DataDog, Elastic

  • Working knowledge of containerization software products, such as Docker and Kubernetes

What we offer

  • Opportunity to create a more resourceful world by working on the 21st century's biggest challenges: water, energy, and gas

  • R&D center with immense growth in the heart of Budapest at Deák Ferenc square

  • Access to modern technologies (Cloud, IoT)

  • Personal development: English, soft skills, and technical training (Udemy, Pluralsight, etc.)

  • Benefits: accident and life insurance, private outpatient care support, cafeteria, iPhone with a generous data allowance

  • Strong culture promoting work-life balance, remote and flexibility

#LI-IB1 #LI-HYBRID

Itron is committed to building an inclusive and diverse workforce and providing an authentic workplace experience for all employees. If you are excited about this role but your past experiences don't perfectly align with every requirement, we encourage you to apply anyway. In the end, you may be just who we are looking for!

The successful candidate's starting wage will be determined based on permissible, non-discriminatory factors such as skills and experience.

Itron is proud to be an Equal Opportunity Employer. If you require an accommodation to apply, please contact a recruiting representative at 1-800-635-5461 or email Accessibility@itron.com.


Itron is transforming how the world manages energy, water and city services. Our trusted intelligent infrastructure solutions help utilities and cities improve efficiency, build resilience and deliver safe, reliable and affordable service. With edge intelligence, we connect people, data insights and devices so communities can better manage the essential resources they rely on to live. Join us as we create a more resourceful world: www.itron.com