Performance Tester

Solirius Consulting; Greater London; Hybrid; GBP 55,000 - 85,000; Full time

Benefits offered by this job

Competitive Salary

Bonus Scheme

Private Healthcare Insurance

25 Days Annual Leave + Bank Holidays

Development training budget

Enhanced Parental Leave

Paid Fertility Leave

Pension

EAP with Help@Hand

Gym Membership

Cycle to Work

Flexible Working

Away Days/Company Socials

Job summary

Solirius Reply, part of the Reply Group, is a technology consultancy delivering secure, user-focused services across public and private sectors. We are seeking experienced Non Functional Test Engineers to join on a permanent basis to run NFT projects for client engagements in the UK.

You will be involved in API, Front End and UI performance testing, with a focus on delivering reliable, scalable solutions in collaboration with agile teams and stakeholders.

Qualifications

• Experience as a performance tester/engineer on multiple projects.
• Ability to develop, execute and maintain performance test scripts.
• Experience testing API, Front End and UI performance; Azure infra is a plus.

Responsibilities

• Work on performance testing projects covering API, Front End and UI performance testing.
• Gather requirements from project/client meetings and review NFRs.
• Develop, execute and report on performance tests to stakeholders.
• Identify performance test failures against NFRs and communicate risks.
• Perform analysis of NFRs to ensure clarity and testability.

Skills

Communication

Time management

Interpersonal skills

Analytical mindset

Collaborative working

Tools

Gatling

JMeter

LoadRunner

Job description

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.

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

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.