Senior Performance Tester
Senior Performance Tester

Senior Performance Tester

Freelance 45000 - 75000 £ / 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 on system reliability and scalability 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 45000 - 75000 £ 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 employer: SR2 REC LTD

Join a dynamic and innovative team as a Senior Performance Tester, where you'll have the opportunity to work fully remotely and engage in high-impact projects that directly influence system reliability and scalability. Our culture fosters autonomy and collaboration, providing you with the chance to solve complex technical challenges while enjoying a flexible work environment. With a modern tech stack and strong potential for contract extensions, this role offers meaningful engagement and professional growth in a fast-paced 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

✨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

Show off your skills! Create a portfolio showcasing your previous performance testing projects. Include case studies that highlight how you identified bottlenecks and improved system resilience. This will make you stand out during interviews.

✨Tip Number 3

Prepare for technical interviews by brushing up on your Python and TypeScript skills. Be ready to discuss your experience with load testing frameworks and how you've tackled performance issues in the past. Practice makes perfect!

✨Tip Number 4

Don't forget to apply through our website! We love seeing candidates who are proactive. Plus, it gives you a chance to showcase your enthusiasm for the role and the company right from the start.

We think you need these skills to ace Senior Performance Tester

Performance Testing
Load Testing
Stress Testing
Python
TypeScript
Machine Learning Workflows
AWS
System Analysis
Reporting Skills
Collaboration with Engineering Teams
Problem-Solving Skills
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 keep track of your application and ensure it gets the attention it deserves!

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 complex problems quickly. Prepare to discuss scenarios where you had to think on your feet or adapt your testing approach. Highlight your ability to work autonomously and deliver results in a fast-paced environment.

✨Ask Insightful Questions

At the end of the interview, don’t forget to ask questions that show your interest in the role and the company. Inquire about their current challenges with system performance or how they measure success in their engineering teams. This demonstrates your proactive mindset and genuine interest.

Senior Performance Tester
SR2 REC LTD
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