Senior Software Development Engineer In Test

GenTrack; London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A global utilities company in London is seeking a Senior Software Development Engineer in Test (SDET) to join their engineering team. This hands-on role focuses on delivering quality through test automation, enhancing CI/CD pipelines, and collaborating in Agile teams. The ideal candidate will have extensive experience in test automation frameworks, particularly with Java or C#, and familiarity with tools like Selenium and Jenkins.

Qualifications

• 5+ years of experience in test automation with strong proficiency in Java or C#.
• Advanced knowledge of Selenium WebDriver, Cucumber, and BDD methodologies.
• Experience in testing REST/SOAP web services and APIs.

Responsibilities

• Design and maintain automated test frameworks for APIs and web applications.
• Create BDD test suites using Cucumber and Selenium.
• Develop CI/CD pipelines with Jenkins to automate testing.

Skills

Test automation

Java

C#

Selenium WebDriver

Cucumber

CI/CD

AWS

Performance testing

SQL

Tools

JIRA

TestRail

Zephyr

Jenkins

JMeter

Job description

The Company

Gentrack provides leading utilities across the world with innovative cleantech solutions. The global pace of change is accelerating, and utilities need to rebuild for a more sustainable future.

Working with some of the world’s biggest energy and water companies, as well as innovative challenger brands, we are helping companies reshape what it means to be a utilities business. We are driven by our passion to create positive impact. That is why utilities rely on us to drive innovation, deliver great customer experiences, and secure profits. Together, we are renewing utilities.

Our Values and Culture

Colleagues at Gentrack are one big team, working together to drive efficiency in two of the planet’s most precious resources, energy, and water. We are passionate people who want to drive change through technology and believe in making a difference. Our values drive decisions and how we interact and communicate with customers, partners, shareholders, and each other. Our core values are:

• Respect for the planet
• Respect for our customers and
• Respect for each other

Gentrackers are a group of smart thinkers and dedicated doers.We are a diverse team who love our work and the people we work with and who collaborate and inspire each other to deliver creative solutions that make our customers successful. We are a team that shares knowledge, asks questions, raises the bar, and are expert advisers. At Gentrack we care about doing honest business that is good for not just customers but families, communities, and ultimately the planet. Gentrackers continuously look for a better way and drive quality into everything they do.

About the Role:

We’re seeking a Senior Software Development Engineer in Test (SDET) to join our high-performing Engineering team in London. This is a hands-on, technical role suited for someone passionate about delivering quality at scale, building reliable test automation, and driving best practices across the SDLC.

As a Senior SDET, you’ll work on enterprise-level platforms in the Utilities space, helping shape our testing strategy, enhance CI/CD pipelines, and deliver robust solutions with speed and precision.

Key Responsibilities:

• Design, implement, and maintain automated test frameworks for APIs, web services, and large-scale enterprise applications using Java or C#.

• Create and maintain BDD test suites using Cucumber and Selenium.

• Develop and optimize CI/CD pipelines using Jenkins, with automation embedded across every stage.

• Conduct performance and load testing with JMeter.

• Collaborate with cross-functional Agile teams, integrating QA from day one in each sprint.

• Troubleshoot and resolve test environment issues in AWS cloud environments.

• Own and manage test case design, execution, and defect tracking using JIRA, TestRail, and Zephyr.

• Mentor junior SDETs and contribute to building a culture of quality and continuous improvement.

What You’ll Bring:

• 5+ years of experience in test automation, with strong proficiency in Java or C# and OOP principles.

• Advanced hands-on knowledge of Selenium WebDriver, Cucumber, and BDD methodologies.

• Strong understanding of CI/CD practices, with experience using Jenkins.

• Experience in testing REST/SOAP web services, APIs, and microservices.

• Proven ability to conduct performance testing using JMeter.

• Proficiency with AWS infrastructure and enterprise test environments.

• Familiarity with the Utilities industry.

• Strong SQL/database skills across SQL Server, or similar.

• Working knowledge of test management tools: JIRA, Zephyr, TestRail.

Key Personal Attributes:

• High levels of energy, sound judgment, and determination to achieve with a sense of urgency

• High attention to detail and a drive for excellence in everything you deliver

• Excellent relationship management and interpersonal skills, with the ability to collaborate across teams

• An open-minded, consultative approach to problem solving and quality advocacy

• A natural team player who thrives in fast-paced, Agile environments

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