Senior Software Development Engineer in Test (SDET)

London Stock Exchange • $110K — $130K *
Saint Louis, MO 63129In-Person
Information Technology
5 - 7 years of experience
Today
Be an Early Applicant
Job Overview by Ladders

Qualifications

  • 5-7 years of experience in Quality Engineering, SDET, or Test Automation roles.
  • Strong programming skills in Python and experience with creating automation frameworks.
  • Proficiency in Behavior Driven Development (BDD) using Robot Framework and Gherkin/Cucumber.
  • Hands-on experience with CI/CD pipelines for automated testing integration.
  • Solid understanding of software testing methodologies and Quality Engineering principles.
  • Experience in cloud services like AWS or Azure and knowledge of Docker and Kubernetes.
  • Strong analytical, debugging, problem-solving, and collaboration skills.

Responsibilities

  • Design and maintain scalable automated testing solutions using Python.
  • Develop and implement automated tests for various application types, including CLI, UI, and API.
  • Collaborate with cross-functional teams to understand requirements and create test strategies.
  • Drive quality engineering practices throughout the software development lifecycle.
  • Participate in Agile team activities including test design and release planning.
  • Implement functional and regression testing across diverse platforms.
  • Document and manage defects while performing root cause analysis.

Benefits

  • Opportunities for continuous improvement initiatives in testing practices.
  • Collaborative environment with globally distributed teams.
  • Use of modern testing tools and frameworks for professional development.
Full Job Description
Job Description

SDET Engineers are involved in requirements analysis, test planning, writing test cases/scripts, test case automation, and execution of all testing (which may include application integration, system, system/network integration, performance testing and acceptance testing) required to ensure that the software is of the highest quality. After the project is released to production, these teammates are also involved to providing support to our internal customer, the technical operation group as well as service management. Besides, this role also plays a significant part of internal process audit and improvement to build efficiencies.

Main Responsibilities / Accountabilities:
  • Design, develop, and maintain scalable automated test solutions and frameworks using Python.
  • Build and implement automated tests for CLI, UI, API, integration, and end-to-end validation.
  • Collaborate with Product Owners, Business Analysts, Developers, and other team members to understand requirements and develop effective test strategies and test cases.
  • Drive Quality Engineering standard methodologies throughout the software development lifecycle.
  • Participate in test planning, test design, estimation, execution, and release activities within Agile teams.
  • Implement functional, integration, and regression testing across multiple platforms, including Linux and Windows environments.
  • Identify, document, prioritize, and supervise defects through resolution while performing root cause analysis.
  • Integrate automated tests into CI/CD pipelines to support continuous testing and rapid feedback cycles.
  • Perform API testing and data validation to ensure application reliability, accuracy, and consistency.
  • Work closely with globally distributed teams, ensuring effective collaboration across time zones and functions.
  • Use test management tools to run test execution, traceability, reporting, and quality metrics.
  • Support and ability to lead continuous improvement initiatives by evaluating and accepting modern testing tools, frameworks, and engineering practices.


Essential Skills & Experience
  • Experienced level in Quality Engineering, Test Automation, or SDET roles.
  • Work independently within defined parameters, taking ownership of problems within own area of knowledge.
  • Strong programming expertise in Python with experience developing reusable automation frameworks.
  • Experience implementing Behavior Driven Development (BDD) practices using Robot Framework and Gherkin/Cucumber.
  • Strong understanding of software testing methodologies, test build techniques, and Quality Engineering principles.
  • Hands-on experience integrating automated testing into CI/CD pipelines.
  • Proficiency with source code management tools such as GitLab, Bitbucket, or Git.
  • Experience working with TestRail or similar test management platforms.
  • Strong experience working within Agile/Scrum development environments.
  • Experience testing applications on both Linux and Windows platforms.
  • Expertise in cloud-native technologies and platforms such as AWS or Azure.
  • Knowledge of containerization and orchestration technologies including Docker and Kubernetes.
  • Excellent analytical, debugging, and problem-solving skills.
  • Strong communication and collaboration skills with the ability to work effectively in a global environment.
  • Proficiency with Networking, TCP/IP


Desired Skills
  • Hands-on experience with UI automation frameworks, including Playwright and/or Selenium.
  • Familiarity with AI-assisted development platforms including GitHub Copilot, Claude, or similar platforms.
  • Experience with Infrastructure as Code (IaC) testing, including exposure to Terraform and Bash scripting.
  • Experience with Application Performance testing.
  • Experience testing APIs and validating backend data using SQL and other validation techniques.
  • Exposure to modern DevOps and cloud-native architectures.
  • Understanding of performance, scalability, and reliability testing concepts.
  • Experience mentoring team members and promoting Quality Engineering standards.
  • Ability to quickly learn and adopt new tools, technologies.
  • Relevant certifications in Cloud, DevOps, Agile, or Quality Engineering subject areas.


Career Stage:
Senior Associate

About London Stock Exchange

London Stock Exchange Careers

There has never been a better time to join the global team at London Stock Exchange, a leading financial marketplace renowned for its robust growth, innovation, and leadership in the financial sector.

Work You’ll Do

Join London Stock Exchange's market-leading team to help drive the future of financial markets. At the intersection of finance and technology, the company offers a unique position in the marketplace, fostering digital innovation and industry expertise. Professionals at London Stock Exchange work with a dynamic team of business and technology advisors, helping clients and the market navigate through complex financial landscapes with cutting-edge solutions. Collaborate with some of the most talented financial experts in the industry—professionals dedicated to advancing the state of financial markets and services.

Introducing the London Stock Exchange Professional Growth and Development Initiative

The initiative is building a market-leading team to propel London Stock Exchange to new heights, focusing on digital transformation and financial innovation.

Do Innovative Work

Engage in groundbreaking work with London Stock Exchange, where job opportunities abound for pushing the boundaries of financial technology and services.

Drive Innovation and Leadership

Deliver targeted financial solutions through a depth and breadth of consulting experience and innovation that’s second to none. London Stock Exchange is a place where leadership and diversity training meet to create a powerhouse in financial services.

Be Part of a Great Team

Join a team that values diversity and is committed to creating an inclusive culture. London Stockage Exchange offers a wide range of benefits and a culture that fosters professional growth and networking opportunities.

Future-proof Your Career

With London Stock Exchange, career advancement is limitless. The company supports professional growth with unmatched training, development, and certification support.

Explore Job Opportunities and Internships

From internships to leadership positions, London Stockage Exchange offers a variety of roles for individuals at every stage of their career. The company is continuously hiring, seeking passionate, curious, and innovative team players.

The London Stock Exchange Commitment to Professional Development

With a commitment to professional development and employment diversity, London Stock Exchange ensures that all team members have the resources and opportunities to thrive in their careers.

Stay Connected

Join the Team

Search open positions that match your skills and interests. London Stockage Exchange looks for passionate, creative, and solution-driven professionals. SEARCH LONDON STOCK EXCHANGE JOBS

Keep Up to Date

Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work at London Stock Exchange.

READ CAREERS BLOG

Job Alert Emails

Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding opportunities that await at London Stockage Exchange.
Learn more about London Stock Exchange
Industry
Finance & Insurance
* Ladders Estimates

Similar Jobs

Ad banner background

Get Ready For Your
Next Interview

More Jobs at London Stock Exchange

More Information Technology Jobs

Find similar Senior Software Development Engineer in Test (SDET) jobs:

NationwideSaint Louis, MO