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Lead Software Engineer - SDET

Job in City Of London, Central London, Greater London, England, UK
Listing for: J.P. Morgan
Full Time position
Listed on 2026-07-21
Job specializations:
  • Software Development
    DevOps, Software Testing, Cloud Engineer - Software, Backend Developer
Salary/Wage Range or Industry Benchmark: 70000 - 110000 GBP Yearly GBP 70000.00 110000.00 YEAR
Job Description & How to Apply Below
Location: City Of London

hackajob is collaborating with J.P. Morgan to connect them with exceptional professionals for this role.

JOB DESCRIPTION

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level.

Join us to shape the future of technology and quality assurance. You'll have the opportunity to work with cutting‑edge tools and frameworks, collaborating with a passionate team that values creativity and continuous improvement. We empower you to grow your skills and make a meaningful impact on our products and processes. If you thrive in a dynamic environment and enjoy solving complex challenges, this role is for you.

Discover how you can advance your career while helping us deliver exceptional solutions.

As a Lead Software Development Engineer in Test (SDET) in our technology team, you will design, build, and support automated testing frameworks for backend applications. You will collaborate closely with developers and engineers to ensure robust, scalable, and reliable systems. Your expertise in Python, cloud technologies, and modern architecture will help us deliver high‑quality products. You will play a key role in driving innovation and efficiency within our testing processes.

Together, we foster a culture of learning, teamwork, and excellence.

Job Responsibilities:
  • Design and support automated testing frameworks for backend applications
  • Develop and maintain test scripts using Python3 and pytest
  • Implement and validate REST API functionality and principles
  • Drives team adoption of enterprise-authorized AI‑assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes (e.g., AI‑assisted code review/refactoring, test strategy acceleration, incident/root‑cause analysis support), while establishing consistent validation standards (secure coding, peer review, automated testing) and promoting reuse of effective patterns across the team.
  • Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI‑assisted development and automation capabilities, to improve the value realized by automation.
  • Apply modern microservice architecture concepts, including resiliency and load‑balancing
  • Create and run Docker containers for testing environments
  • Build and manage CI/CD pipelines using Jenkins, Git Hub Actions, or similar tools
  • Collaborate with team members to ensure quality and reliability
  • Troubleshoot and resolve issues in test automation and environments
  • Contribute to continuous improvement of testing processes
Required Qualifications , Capabilities, and

Skills:
  • Prior experience as an SDET or Software Developer
  • Proficiency in Python3 and familiarity with testing frameworks (pytest preferred)
  • Experience designing and supporting automated testing frameworks for backend applications
  • Demonstrated experience leading effective use of approved AI‑assisted software development tools (e.g., for coding, code review, test acceleration, troubleshooting) with the ability to set team expectations for validating AI outputs for correctness, performance, and security.
  • Strong understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectations; experience coaching engineers on safe, compliant adoption within delivery practices
  • Understanding of REST API design and hands‑on experience
  • Knowledge of modern microservice architecture and concepts
  • Hands‑on experience with Docker containers
  • Experience with at least one cloud provider: AWS, Azure, or GCP (AWS preferred)
  • Experience creating CI/CD pipelines with tools such as Jenkins or Git Hub Actions (Jenkins preferred)
Preferred Qualifications , Capabilities, and

Skills:
  • Experience with monitoring tools (Prometheus, Grafana, ELK, Datadog, Splunk, etc.)
  • Familiarity with backend frameworks like Spring, Micronaut, or Dropwizard (Spring is a big plus)
  • Experience with Kubernetes
  • Experience with non‑functional testing
  • Knowledge of Infrastructure‑as‑Code concepts and tools like Terraform
  • Experience designing and supporting automated testing frameworks…
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