QA Automation Lead

**Must be local to Chester or Bromley**

Want to work in technology at an investment bank?

We are seeking a highly technical and hands-on QA & Stability Technical Lead to join a high-profile Global Markets programme responsible for a mission-critical workflow and task management platform. The system processes 8–9 million emails per month, supports hundreds of concurrent users, and is being modernised to scale to thousands of users whilst incorporating AI-driven classification and workflow automation.This role is ideal for someone who remains deeply involved in automation engineering and non-functional testing whilst providing technical leadership across quality, stability, performance, and release assurance. The successful candidate will be expected to lead by example, actively contributing to test automation, performance testing, environment management, and defect investigation.

About mthree:

Since 2010, mthree has been helping clients solve their business and technological challenges. We are a technology and business consultancy with a global workforce delivering significant business and IT projects in some of the largest financial services organizations worldwide.

Core Services:

• Consulting and Advisory
• Managed Services
• Alumni Graduate Program
• Alumni Pro Program

We have a global presence and are experts in delivering exceptional quality to our client base, providing consulting services across Risk, Regulation & Compliance; Vendor Products; Application Support; Application Development; Cyber & Information Security; Data Science and DevOps areas.

Our Expert program offers experienced professionals access to top roles in tech, finance, aviation and insurance. Join us to work on groundbreaking technology projects, from international trading platforms to critical applications for leading airlines. We recruit professionals who are eager to fast-track their careers in technology or operations within prestigious global organizations.

Key Responsibilities

• Lead the QA and Stability workstream whilst remaining actively involved in day-to-day testing activities. 
• Design, build and maintain automated test frameworks and regression suites using modern automation tooling. 
• Develop and execute automated functional, integration, API, end-to-end and regression tests. 
• Own performance, load, stress, volume and latency testing activities for a high-throughput platform processing millions of emails each month. 
• Build realistic test scenarios and datasets that accurately reflect production workloads and user behaviour. 
• Set up, configure and manage QA, UAT and performance testing environments. 
• Define and implement quality gates across CI/CD pipelines. 
• Execute hands-on testing of AI-powered classification and workflow automation capabilities. 
• Perform root cause analysis of complex defects, performance bottlenecks and stability issues. 
• Work closely with Java Developers, DevOps Engineers, Architects and Business Users to ensure quality is embedded throughout the development lifecycle. 
• Manage test planning, execution, reporting and defect triage activities. 
• Drive continuous improvement of automation coverage, testing processes and release quality. 
• Mentor and provide technical guidance to other QA Engineers within the programme.

Skills Required:

• Bachelor’s in computer science or related field
• Years of experience: 8-10 years
• Extensive hands-on experience in QA Automation and Test Engineering within enterprise environments. 
• Proven experience acting as a Technical Lead whilst remaining actively involved in delivery. 
• Strong experience developing automated test frameworks using tools such as: 
  
  • Playwright 
  • Selenium 
  • REST Assured 
  • Cucumber 
  • Experience conducting: 
  • Performance Testing 
  • Load Testing 
  • Stress Testing 
  • Volume Testing 
  • Latency Testing 
  • Stability Testing
• Strong hands-on experience with LoadRunner, JMeter or similar enterprise performance testing tools. 
• Experience creating and maintaining large-scale automated regression test packs.
• Experience testing distributed systems and high-volume transaction processing platforms. 
• Strong understanding of APIs, microservices and event-driven architectures. 
• Experience managing test environments and supporting release activities. 
• Strong SQL and database testing experience. 
• Experience working within Agile and DevOps delivery models. 
• Excellent troubleshooting and diagnostic skills.

Desirable:

• Experience working within Investment Banking or Global Markets environments. 
• Experience testing workflow, task management or case management systems. 
• Exposure to AI, Machine Learning or Large Language Model solutions. 
• Experience validating AI-driven classification, routing or decision-making workflows. 
• Experience with Oracle, Hadoop and Elasticsearch. 
• Familiarity with observability and monitoring platforms. 
• Knowledge of enterprise AI platforms and LLM integrations such as Orchestra, Llama or ChatGPT based solutions. 

Technology Environment:

• Playwright 
• LoadRunner 
• JMeter
• Selenium 
• REST Assured 
• Java-based applications 
• Oracle 
• Hadoop 
• Elasticsearch 
• Git 
• CI/CD Pipelines 
• AI/LLM Platforms 
• Agile Delivery 

At mthree, our values support courageous teammates, needle movers, and learning champions all while striving to support the health and well-being of all employees. We take great pride in celebrating the diversity of each individual who contributes to making mthree the company it is today and will be in the future. We value diversity both within mthree and with our partner companies, and we're proud to provide an environment where all our colleagues can flourish. That means promoting a strong culture of equality but, most importantly, inclusion.

Applicants must be currently authorized to work in the UK on a full-time basis. The Company will not sponsor applicants for work visas.