Performance Tester

Posted Yesterday
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London, Greater London, England, GBR
In-Office
Entry level
Information Technology • Software • Consulting
The Role
Conduct performance and non-functional testing across API, front-end, and UI applications. Gather requirements, review non-functional requirements, develop and maintain test scripts, execute tests, analyze results, identify failures and risks, and communicate findings to technical, business, client, and third-party stakeholders. The role includes performance testing against Azure infrastructure and managing multiple client projects.
Summary Generated by Built In

About Us: 

Solirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery.

We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. By combining deep technical expertise with people-centred design, we create solutions that deliver meaningful, lasting impact.

Our consultants partner directly with client teams, embedding into organisations to understand their goals, challenges, and users. This collaborative approach enables us to deliver tailored solutions that drive measurable outcomes across public and private sectors.

Past and present clients include the Ministry of Justice, Department for Education, Ministry of Housing, Communities and Local Government, UEFA, International Olympic Committee, and Mercedes-Benz. Our services span the full digital delivery lifecycle, including architecture, engineering, delivery management, user-centred design, business analysis, data, DevOps, and AI.

We operate as a collaborative and inclusive organisation that empowers our people to take ownership, innovate, and develop their expertise. As an equal opportunities employer, we are committed to encouraging equality, diversity, and social mobility, while creating opportunities for our teams to work on meaningful projects that deliver lasting impact.

About You:

You are a motivated and adaptable professional with a strong analytical mindset and a passion for using technology to solve real-world problems. You enjoy working in collaborative, agile teams and take pride in delivering high-quality solutions that make a tangible impact. With strong communication skills and a consultative approach, you’re comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. You understand and align with Solirius Reply Values

The Role:

We are looking for experienced Non Functional Test Engineers with demonstrable experience in Performance Testing and Non Functional Testing to join us on a permanent basis and assist with the running of our performance testing projects. You will be involved in overall NFT as well as API testing, Front End testing and UI based performance testing on behalf of both our public and private sector clients.

Those not from a performance testing background, or without demonstrable experience in performance testing, will not be considered for this role.


Requirements

Key Responsibilities:

  • Working on a variety of performance testing projects covering API, Front End, and UI based performance testing
  • Gathering performance test requirements through project and client engagement meetings and reviewing NFRs
  • Developing performance test scripts
  • Executing and reporting on performance tests to technical and business stakeholders
  • Highlighting any performance test failures against NFRs
  • Performance testing against Azure infrastructure
  • Carrying out performance test analysis
  • Perform analysis of NFRs to ensure they are clear and testable
  • Ensure any issues or risks are clearly communicated to relevant stakeholders in a timely manner

Key Skills/Experience:

  • Experience of working as a performance tester/engineer on previous roles
  • Working on multiple projects at the same time and able to manage time effectively.
  • Experience of developing, executing and maintaining performance test scripts, ideally using Gatling (preferred), Jmeter or LoadRunner.
  • Good interpersonal skills and experience of working with client teams or third parties.
  • Experience in others Areas of NFT such as Accessibility, Compatibility, Usability, Disaster Recovery etc would be beneficial
  • Excellent communication skills, both written and spoken, with an ability to successfully engage with team members and clients

Benefits

What We Offer:

  • Competitive Salary
  • Bonus Scheme
  • Private Healthcare Insurance
  • 25 Days Annual Leave + Bank Holidays
  • Up to 10 days allocated for development training per year
  • Enhanced Parental Leave
  • Paid Fertility Leave (5 Days)
  • Statutory & Contributory Pension
  • EAP with Help@Hand
  • Gym Membership Benefits
  • Cycle to Work and Electric Vehicle schemes
  • Flexible Working
  • Annual Away Days/Company Socials

Diversity and Inclusion

As an equal opportunities employer, we are committed to creating a work environment that supports, celebrates, encourages and respects all individuals, where all processes are based on merit, competence and business needs.

Encouraging high social mobility is really important to us. We foster an inclusive culture by welcoming different perspectives, enabling equitable opportunities and promoting open dialogue. This commitment is reflected in initiatives such as our gender diversity group and our focus on mental health and wellbeing. Whatever stage you are at, you will find an environment where you can thrive.

Should you require further assistance or require any reasonable adjustments to be put in place to better support your application process, please do not hesitate to raise this with us.

As a Disability Confident employer, we are committed to ensuring our recruitment process is accessible and inclusive, enabling all candidates to demonstrate their skills, experience and potential.

Skills Required

  • Previous experience working as a performance tester or performance engineer
  • Demonstrable experience in performance testing and non-functional testing
  • Experience developing, executing, and maintaining performance test scripts
  • Experience using Gatling, JMeter, or LoadRunner
  • Ability to manage multiple projects and time effectively
  • Good interpersonal skills and experience working with client teams or third parties
  • Excellent written and verbal communication skills
  • Experience in other non-functional testing areas, such as accessibility, compatibility, usability, or disaster recovery
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The Company
HQ: London
207 Employees
Year Founded: 2007

What We Do

We are an independent software and technology consultancy who pride ourselves on our ability to deliver complex technology solutions for our clients. We focus on understanding our client’s business and work with them to deliver change that makes their business more effective. Our multidisciplinary teams are made up of delivery experts, technology and software experts and user experience experts who have the drive, talent and creativity to take strategies from inception all the way through to business adoption. We provide the following services: 1) Technology Consulting To help get large technology projects off to the best possible start we can provide technical consultants who work with our clients to provide them with independent technical advice and guidance, supporting them with market analysis, IT strategy development, technical architecture and technical risk assessment. 2) Software Engineering We believe that working in a small, highly skilled, multi disciplined team is the most effective way of delivering quality software. At the core of our philosophy is the need for the entire team to have a shared common understanding of the product that they need to build. 3) Delivery Consulting Our delivery practice is focussed around you the client. By focussing on understanding your needs and your customers needs we will work with you to create a delivery approach, which delivers solutions that provide outstanding results for your business and your customers. 4) Business Consulting Bridging the gap between users, business stakeholders and digital delivery teams to truly understand goals and develop pragmatic, creative and effective solutions. Follow us on Twitter @SoliriusC

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