Performance Engineer (Junior)
Performance Engineer (Junior)

Performance Engineer (Junior)

Entry level 30000 - 55000 ÂŁ / year (est.) Home office possible
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At a Glance

  • Tasks: Join us to deliver top-notch performance testing for leading retail brands.
  • Company: Spike, a dynamic retail technology expert with a supportive culture.
  • Benefits: Competitive salary, flexible remote work, and a dedicated career coach.
  • Other info: Enjoy 25 days annual leave, a birthday day off, and ongoing learning opportunities.
  • Why this job: Make an impact in retail tech while developing your skills in a collaborative environment.
  • Qualifications: Experience in performance testing and programming skills in C, C#, Java, or Python.

The predicted salary is between 30000 - 55000 ÂŁ per year.

Spike are retail technology experts delivering end‑to‑end, go‑live confidence for some of the largest and most complex retail brands in the UK and beyond. This is an exciting opportunity to join Spike as we continue to grow our Performance Engineering practice. The role is suited to a Performance Engineer who enjoys hands‑on technical work and wants to develop their consultancy and engineering capability while working across a range of retail technology projects. You will work as part of client delivery teams, executing professional performance testing services across multiple engagements, under appropriate guidance and supervision, while building your technical depth and confidence.

Role purpose

  • Contribute to the successful delivery of performance testing across client projects
  • Execute performance engineering activities across the software delivery lifecycle
  • Apply agreed tools, standards, and approaches to ensure high‑quality outcomes
  • Develop your technical, consultancy, and client‑facing skills within a supportive environment
  • Build a strong foundation for progression within Spike’s Performance practice

Key responsibilities

Performance Engineering & Delivery (Drive Excellence)

  • Contribute to performance testing activities across multiple projects and delivery phases
  • Develop and execute performance tests from project initiation through to delivery and go‑live
  • Use agreed performance testing tools, standards, and specifications effectively
  • Take ownership of defined technical areas, selecting appropriate methods and configurations under guidance
  • Analyse test results, investigate issues, and identify trends, risks, and constraints
  • Produce clear test plans, approaches, and reports to support delivery decisions
  • Accurately identify and escalate risks, issues, dependencies, and defects to relevant stakeholders

Client & Team Collaboration (Grow the Business)

  • Work collaboratively within delivery teams to meet project objectives
  • Communicate clearly with colleagues and clients, translating technical findings into plain language
  • Demonstrate a genuine interest in client needs and business outcomes
  • Deliver dependable, professional technical services that build client confidence and trust

Development, Learning & Culture (Nurture Our Culture)

  • Actively develop your performance engineering skills and technical capability
  • Build knowledge of industry‑standard tools, platforms, and engineering methods
  • Contribute to Spike’s collaborative and supportive team culture
  • Show curiosity and awareness of emerging trends in technology, performance testing, and retail
  • Demonstrate Spike values through behaviour, teamwork, and client interactions

Required experience & capabilities

  • Experience delivering performance testing across the software delivery lifecycle
  • Experience analysing performance issues using at least one performance testing tool
  • Familiarity with application and infrastructure monitoring tools
  • Ability to write performance test plans, approaches, and reports
  • Programming experience in languages such as C, C#, Java, or Python
  • Good problem‑solving skills, with the confidence to propose solutions
  • Strong communication skills and the ability to explain technical findings clearly
  • Client‑facing mindset with a focus on quality and professionalism

Technical skills & tools

  • Working knowledge of performance testing tools such as JMeter and/or NeoLoad
  • Understanding of performance engineering principles and methodologies
  • Theoretical knowledge supported by basic to intermediate practical experience
  • Aware of modern delivery models, platforms, and retail technology environments

What we offer

  • Personal relationships with an open‑door leadership team
  • Challenging, consultancy‑led technical work across a variety of client projects
  • Remote‑first working with flexibility and paid travel when required
  • A business owned by practising consultants, with shared purpose and principles
  • Pick‑and‑mix benefits allowance
  • Dedicated career coach from day one, with ongoing development support

Plus:

  • Competitive salary
  • 25 days annual leave + public holidays
  • Day off for your birthday
  • L&D allowance and training days
  • Pension with auto‑enrolment after one month

Spike is an equal opportunities employer.

Performance Engineer (Junior) employer: Spike

Spike is an exceptional employer that fosters a collaborative and supportive work culture, perfect for those looking to grow their skills in performance engineering within the dynamic retail technology sector. With a remote-first approach, flexible working arrangements, and a dedicated career coach from day one, employees are empowered to develop their technical and consultancy capabilities while contributing to impactful projects for leading retail brands. The company also offers a competitive salary, generous leave policies, and a unique pick-and-mix benefits allowance, making it an attractive choice for aspiring professionals.
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Contact Detail:

Spike Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Performance Engineer (Junior)

✨Tip Number 1

Get your networking game on! Connect with professionals in the retail tech space on LinkedIn. Join relevant groups and participate in discussions to get noticed. We all know that sometimes it’s not just what you know, but who you know!

✨Tip Number 2

Prepare for those interviews like a pro! Research Spike and understand their projects and values. We want to see your enthusiasm for performance engineering and how you can contribute to their success. Tailor your responses to show you’re the perfect fit!

✨Tip Number 3

Show off your skills! If you’ve got experience with performance testing tools like JMeter or NeoLoad, make sure to highlight that in conversations. We love seeing candidates who can demonstrate their technical prowess and problem-solving abilities.

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we’re all about direct applicants, so you’ll be putting your best foot forward from the start!

We think you need these skills to ace Performance Engineer (Junior)

Performance Testing
Analytical Skills
Technical Aptitude
Communication Skills
Problem-Solving Skills
Client-Facing Mindset
Programming (C, C#, Java, Python)
Performance Testing Tools (JMeter, NeoLoad)
Test Plan Development
Collaboration
Understanding of Performance Engineering Principles
Monitoring Tools Familiarity
Adaptability
Curiosity about Emerging Trends

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the Performance Engineer role. Highlight any relevant experience in performance testing and technical skills that match what we're looking for. This shows us you’re serious about the position!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about performance engineering and how your skills can contribute to our team. Keep it concise but engaging – we want to see your personality!

Showcase Your Technical Skills: Don’t forget to mention any programming languages or performance testing tools you’ve worked with, like JMeter or NeoLoad. We love seeing candidates who can demonstrate their technical prowess and problem-solving abilities.

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 the role. Plus, it makes the process smoother for everyone involved!

How to prepare for a job interview at Spike

✨Know Your Tools

Familiarise yourself with performance testing tools like JMeter and NeoLoad. Be ready to discuss your experience with these tools and how you've used them in past projects. This shows you’re not just theoretically knowledgeable but also practically capable.

✨Communicate Clearly

Practice explaining technical concepts in simple terms. Since the role involves client-facing interactions, being able to translate complex findings into plain language will set you apart. Think of examples where you've done this successfully.

✨Show Your Problem-Solving Skills

Prepare to discuss specific performance issues you've encountered and how you resolved them. Highlight your analytical skills and confidence in proposing solutions, as this is crucial for a Performance Engineer.

✨Demonstrate Your Curiosity

Stay updated on emerging trends in technology and performance testing. Bring up recent developments or tools you’ve learned about during the interview. This shows your genuine interest in the field and your commitment to continuous learning.

Performance Engineer (Junior)
Spike

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