Senior Performance Tester in London
Senior Performance Tester

Senior Performance Tester in London

London Freelance 48000 - 72000 £ / year (est.) Home office possible
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At a Glance

  • Tasks: Design and execute performance testing strategies for a cutting-edge ML platform.
  • Company: Join a high-growth tech company with a focus on innovation.
  • Benefits: Fully remote work, competitive pay, and potential for contract extension.
  • Why this job: Make a real impact by solving complex technical challenges in a fast-paced environment.
  • Qualifications: Experience in performance testing and strong analytical skills required.
  • Other info: Work closely with engineering teams and enjoy a high-trust culture.

The predicted salary is between 48000 - 72000 £ per year.

We are seeking a Senior QA Engineer specialising in performance and load testing to join a high-growth team.

Contract Details

  • Length: 3 months (initial, strong extension potential)
  • IR35: Outside IR35
  • Working Model: Fully remote
  • Start: ASAP
  • Interview Process: Single-stage

Technical Environment

  • Backend: Python
  • Frontend: TypeScript
  • Platform: Machine Learning workflows / ML platform
  • Cloud: AWS

Role Overview

You will be responsible for designing and executing load, stress, and performance testing strategies across a distributed ML platform. The objective is to rapidly identify bottlenecks, validate system resilience, and provide actionable insights to engineering leadership. This role sits close to core engineering and platform teams and will directly influence system reliability and scalability.

Key Responsibilities

  • Design and implement performance and load testing frameworks.
  • Execute stress testing across distributed systems and ML workflows.
  • Analyse system behaviour under load and identify performance constraints.
  • Work closely with backend and platform engineers to validate fixes.
  • Provide clear reporting on system performance, risks, and recommendations.
  • Operate autonomously in a fast-moving, high-trust engineering environment.

Why This Role

  • Short, high-impact engagement with real engineering influence.
  • Modern tech stack across ML, cloud, and distributed systems.
  • Strong likelihood of follow-on work for the right engineer.
  • Fully remote, Outside IR35, fast interview process.

This role suits a senior contractor who enjoys solving hard technical problems quickly and delivering tangible impact in a short timeframe.

Senior Performance Tester in London employer: SR2 REC LTD

Join a dynamic and innovative team as a Senior Performance Tester, where you will have the opportunity to work fully remotely while engaging with cutting-edge technology in machine learning and cloud environments. Our company fosters a high-trust culture that values autonomy and encourages rapid problem-solving, providing you with the chance to make a significant impact on system reliability and scalability. With strong potential for contract extensions and a focus on employee growth, we are committed to supporting your professional development in a fast-paced, collaborative setting.
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Contact Detail:

SR2 REC LTD Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Performance Tester in London

✨Tip Number 1

Network like a pro! Reach out to your connections in the industry, especially those who work with performance testing or in similar roles. A friendly chat can lead to insider info about job openings that aren’t even advertised yet.

✨Tip Number 2

Prepare for the interview by brushing up on your technical skills. Since this role involves performance and load testing, make sure you can discuss your experience with Python, TypeScript, and AWS confidently. We want you to shine!

✨Tip Number 3

Showcase your problem-solving skills during interviews. Be ready to share specific examples of how you've identified bottlenecks and improved system performance in past projects. This is your chance to demonstrate your impact!

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, we love seeing candidates who take the initiative to connect directly with us.

We think you need these skills to ace Senior Performance Tester in London

Performance Testing
Load Testing
Stress Testing
Python
TypeScript
Machine Learning Workflows
AWS
System Analysis
Problem-Solving Skills
Collaboration with Engineering Teams
Reporting and Documentation
Autonomous Work
Adaptability in Fast-Paced Environments

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with performance and load testing. We want to see how you've tackled similar challenges in the past, so don’t hold back on those details!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're the perfect fit for this role. Mention your familiarity with Python, TypeScript, and AWS, and how you can contribute to our ML platform.

Showcase Your Problem-Solving Skills: In your application, give examples of how you've identified bottlenecks and improved system performance. We love seeing candidates who can think critically and provide actionable insights!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity!

How to prepare for a job interview at SR2 REC LTD

✨Know Your Tech Stack

Make sure you’re familiar with the technologies mentioned in the job description, especially Python and TypeScript. Brush up on your knowledge of performance testing frameworks and tools that are commonly used in cloud environments like AWS.

✨Prepare for Technical Questions

Expect to dive deep into your experience with load and stress testing. Be ready to discuss specific strategies you've implemented in the past, how you identified bottlenecks, and the outcomes of your testing efforts. Real-world examples will make your answers stand out.

✨Showcase Your Problem-Solving Skills

This role is all about solving hard technical problems quickly. Prepare to discuss challenges you've faced in previous roles and how you approached them. Highlight your ability to operate autonomously and deliver results in a fast-paced environment.

✨Communicate Clearly

Since you'll be working closely with engineering teams, clear communication is key. Practice explaining complex concepts in simple terms. Be prepared to provide clear reporting on system performance and articulate your recommendations effectively.

Senior Performance Tester in London
SR2 REC LTD
Location: London

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