IT system tester jobs in City of London

System Tester - Contract - £450 outside IR35 - Hybrid (London 2 days per week) Kindly note that this is a contract position, and applicants are required to have the legal right to work in the UK. La Fosse has partnered with a leading entertainment business to support the recruitment of a skilled System Tester. The successful candidate will work with enterprise database systems, including...

Overview We are looking Head of Systems to join our team in London. The person in this role will work as part of the Global Platforms Leadership team and will be managing the Systems Delivery team as well as a key point of contact for the IT Operations team.The Head of Systems role holds day to day responsibility for the team which provides and manages the following technical services for the...

You will be the driving force behind maintaining our key business systems and data, IT infrastructure, IT security and digital tools, ensuring they empower our teams, delight our customers and keep us ahead in a fast-moving luxury retail landscape.

This post is for our client. Please ensure you read the below overview and requirements for this employment opportunity completely. We are seeking a candidate with technical experience in a high-paced organization and a genuine passion for addressing business needs through exceptional customer experience. As an individual contributor on this team, you will be managing, deploying, and supporting...

IT System Administrator - London Please read the following job description thoroughly to ensure you are the right fit for this role before applying. City of London | On-site, Monday to Friday Salary: £30,000 – £55,000 (Dependent on experience) Ref: J13007 We’re partnering with a global leader in sports trading, a fast-paced and data-driven organisation, in search of a proactive, hands-on IT...

Monitoring Senior IT Systems Administrator (OSS) - 20 month FTC Please read the information in this job post thoroughly to understand exactly what is expected of potential candidates. Indra is one of the leading global technology and consulting companies and the technological partner for core business operations of its customers worldwide. It is a world-leader in providing proprietary solutions...

This post is for our client. We are seeking a candidate with technical experience in a high-paced organization and a genuine passion for addressing business needs through exceptional customer experience. As an individual contributor on this team, you will be managing, deploying, and supporting desktop and office standards. If you are a curious, motivated person and are looking to make an...

Penetration Tester Permanent – up to £85k per annum London based – hybrid working – 2-3 days office based Must have CHECK CTL and certified If you are interested in applying for this job, please make sure you meet the following requirements as listed below. Role Overview: We are seeking a highly skilled and experienced Offensive Security Consultant with a strong focus understanding on...

Automated & Manual Tester – Mobile Apps, Playwright, .Net, Blazor, SQL, Azure Any additional information you require for this job can be found in the below text Make sure to read thoroughly, then apply. Outstanding opportunity to join this global enterprise and famous brand within the ‘magic circle’ of the legal sector. From a technology perspective, this organisation is a leader in its domain,...

Mid/Senior Penetration Tester - Remote - Up to £60k - New Role (REF46) For a complete understanding of this opportunity, and what will be required to be a successful applicant, read on. A leading organisation that delivers IT solutions to over 2000 companies in the public and private sectors, requires a skilled and enthusiastic Penetration Tester to join its growing team. Suitable candidates...

You will work closely with the Product Manager, Quality Assurance Lead, and wider technical team to test new and updated functionality, investigate bugs, and contribute to the ongoing improvement of testing processes. This is a fantastic opportunity to work on a Salesforce-based application that makes a real difference, while also gaining exposure to automation and complex system testing.

Non-Functional Tester Making sure you fit the guidelines as an applicant for this role is essential, please read the below carefully. We’re working with a global financial technology group undergoing a major transformation to modernise its post-trade infrastructure. The organisation is transitioning from legacy systems to a cloud-native, Kafka-based architecture designed for resilience,...

QA Technical Tester Location: London | Hybrid / Contract We are seeking an experienced QA Analyst to join a dynamic Quality Assurance team, focusing on the RTB applications in a critical financial services environment. This role offers a unique opportunity to ensure the stability, reliability, and quality of production systems, with a focus on Front Office to Back Office applications. Key...

Senior Infrastructure Penetration Tester Location: London flexible hybrid Salary: £70,000 – £80,000 We’re hiring on behalf of our client, a growing Penetration Testing Consultancy, for a Senior Infrastructure Penetration Tester to join their elite Testing team. This role is ideal for someone who thrives on deep technical challenges, values autonomy, and enjoys working in a fast paced and...

Remote | Paid in Crypto | ‍ No Experience Needed | Global We’re a team building something fresh at the intersection of Web3, DeFi, and privacy-first tech. As we prepare for a closed alpha launch, we’re inviting curious crypto minds to get early access and help us shape the experience. If you’re tired of clunky crypto tools and want to be ahead of the curve — this is your chance. What You’ll Be...

Infrastructure and Software Tester +Permanent opportunity +Hybrid working on site in London 2/3 days a week +£42,000 - £45,000 Skills: +Software Testing experience +Infrastructure Testing experience +AWS / Azure +API +Manual and automated testing experience We’re looking for a hands-on Tester who’s as comfortable checking infrastructure deployments and systems performance as they are...

You will work closely with the Product Manager, Quality Assurance Lead, and wider technical team to test new and updated functionality, investigate bugs, and contribute to the ongoing improvement of testing processes. This is a fantastic opportunity to work on a Salesforce-based application that makes a real difference, while also gaining exposure to automation and complex system testing.

QA Technical Tester Location: London | Hybrid / Contract We are seeking an experienced QA Analyst to join a dynamic Quality Assurance team, focusing on the RTB applications in a critical financial services environment. This role offers a unique opportunity to ensure the stability, reliability, and quality of production systems, with a focus on Front Office to Back Office applications. Key...

Manual Penetration Tester Fully Remote We're proud to be working with a renowned MSP in support of their search for an experienced Manual Penetration Tester. Key Responsibilities - Carry out hands-on penetration testing across applications, infrastructure, and networks, with a particular focus on web apps and security products - Deliver highly technical and effective security engagements...

Remote | #128184; No Experience Needed | #127757; We’re a team building something fresh at the intersection of Web3, DeFi, and privacy-first tech. As we prepare for a closed alpha launch, we’re inviting curious crypto minds to get early access and help us shape the experience. Get early access to a brand-new Web3 app before it goes public Install the app (available for Windows / macOS / Android)...