20 senior qa engineer jobs found

Senior QA Engineer (Defence Sector)  Duration: 3 months inital (extension, likley)  Rate: £400 per day (Outside IR35) Working Patterns: Remote (Infrequent on-site travel to London / Belfast) Other: Active SC Clearance - Preffered, SC eligable - must have (Fast-tracked SC sponsorship is provided) Project Requirments:We're seeking a Senior QA Engineer to assure the quality of complex software and data-intensive systems, delivered into secure, highly regulated environments. This role goes beyond traditional functional testing, focusing on validating data flows, ensuring data integrity, and verifying that analytical outputs produce accurate and repeatable results against known reference cases. Key experience we're looking for: - Experience testing data-intensive systems, including validation of data pipelines, transformations, and end-to-end data quality. - Ability to assess quantitative, analytical, or model-driven outputs and verify results against expected reference cases. -...

Senior QA Engineer (Defence Sector) Duration: 3 months initial (extension, likely) Rate: £400 per day (Outside IR35) Working Patterns: Remote (Infrequent on-site travel to London/Belfast) Other: Active SC Clearance - Preffered, SC eligible - must have (Fast-tracked SC sponsorship is provided) Project Requirments: We're seeking a Senior QA Engineer to assure the quality of complex software and data-intensive systems, delivered into secure, highly regulated environments. This role goes beyond traditional functional testing, focusing on validating data flows, ensuring data integrity, and verifying that analytical outputs produce accurate and repeatable results against known reference cases. Key experience we're looking for: - Experience testing data-intensive systems, including validation of data pipelines, transformations, and end-to-end data quality. - Ability to assess quantitative, analytical, or model-driven outputs and verify results against expected reference...

Senior QA Engineer (Defence Sector) Duration: 3 months inital (extension, likley) Rate: £400 per day (Outside IR35) Working Patterns: Remote (Infrequent on-site travel to London / Belfast) Other: Active SC Clearance - Preffered, SC eligable - must have (Fast-tracked SC sponsorship is provided) Project Requirments: We 're seeking a Senior QA Engineer to assure the quality of complex software and data-intensive systems, delivered into secure, highly regulated environments. This role goes beyond traditional functional testing, focusing on validating data flows, ensuring data integrity, and verifying that analytical outputs produce accurate and repeatable results against known reference cases. Key experience we 're looking for: - Experience testing data-intensive systems, including validation of data pipelines, transformations, and end-to-end data quality. - Ability to assess quantitative, analytical, or model-driven outputs and verify results...

Senior Mobile QA Engineer (iOS & Android) £350 to £400 per day | Outside IR35 | Initial 6-Month Contract | Hybrid (Stratford, London) | Immediate Start Available Our trusted partner within the Ed-Tech sector, employing over 10,000 people across 100 countries and supporting more than 600 million users globally, is seeking an experienced Senior Mobile QA Engineer to join a high-profile product engineering team developing innovative mobile learning applications. This role is ideal for a QA professional with extensive experience testing native and cross-platform mobile applications across iOS and Android environments, coupled with a strong background in test automation and modern Agile delivery practices. Key Responsibilities Lead quality assurance activities across mobile applications, ensuring exceptional user experience on both iOS and Android platforms. Develop and execute comprehensive test strategies, test plans and test cases. Design, implement and maintain automated...

Senior Mobile QA Engineer (iOS & Android) £350 to £400 per day | Outside IR35 | Initial 6-Month Contract | Hybrid (Stratford, London) | Immediate Start Available Our trusted partner within the Ed-Tech sector, employing over 10,000 people across 100 countries and supporting more than 600 million users globally, is seeking an experienced Senior Mobile QA Engineer to join a high-profile product engineering team developing innovative mobile learning applications. This role is ideal for a QA professional with extensive experience testing native and cross-platform mobile applications across iOS and Android environments, coupled with a strong background in test automation and modern Agile delivery practices. Key Responsibilities Lead quality assurance activities across mobile applications, ensuring exceptional user experience on both iOS and Android platforms. Develop and execute comprehensive test strategies, test plans and test cases. Design, implement and maintain automated...

React Native Engineer / React Native Developer / Senior React Native Developer / Senior Mobile Developer - React Native We've partnered with well known FinTech who are on a complex transformation programme across their mobile apps, web platform and entire technology stack. They want to improve the functionality of a couple of their core products on their mobile app. So we are looking for experienced React Native Developer to join this major digital transformation programme. You'll play a key role in enhancing and modernising mobile applications across iOS and Android , delivering new features, improving performance, and helping create a seamless customer experience. Key Responsibilities Develop and enhance mobile applications using React Native . Deliver new functionality and improve existing user journeys across iOS and Android platforms. Work closely with Product, UX/UI, Engineering, and QA teams to deliver high-quality solutions. Optimise application performance,...

Role: QA Test Engineer Location: Fully Remote (UK Based) Type: Contract (Outside IR35) Duration: Initial 6 months Security Clearance: SC Clearance preferred, or eligible to obtain SC Clearance About the Role We are seeking two highly experienced Senior QA Engineers to play a pivotal role in a major new programme delivering complex, data-intensive systems . This is an opportunity to take ownership of quality across the full software life cycle, ensuring robust testing, data validation, and formal acceptance processes are Embedded from the outset. The successful candidate will work within a highly autonomous engineering team, helping to define quality standards, test strategies, and automated frameworks while validating large-scale data processing and streaming solutions. This role goes beyond traditional software testing and requires an individual who can take ownership of quality assurance, challenge assumptions, and build the evidence needed to support...

React Native Engineer/React Native Developer/Senior React Native Developer/Senior Mobile Developer - React Native We've partnered with well known FinTech who are on a complex transformation programme across their mobile apps, web platform and entire technology stack. They want to improve the functionality of a couple of their core products on their mobile app. So we are looking for experienced React Native Developer to join this major digital transformation programme. You'll play a key role in enhancing and modernising mobile applications across iOS and Android , delivering new features, improving performance, and helping create a seamless customer experience. Key Responsibilities Develop and enhance mobile applications using React Native . Deliver new functionality and improve existing user journeys across iOS and Android platforms. Work closely with Product, UX/UI, Engineering, and QA teams to deliver high-quality solutions. Optimise application performance,...

React Native Engineer / React Native Developer / Senior React Native Developer / Senior Mobile Developer - React Native We 've partnered with well known FinTech who are on a complex transformation programme across their mobile apps, web platform and entire technology stack. They want to improve the functionality of a couple of their core products on their mobile app. So we are looking for experienced React Native Developer to join this major digital transformation programme. You 'll play a key role in enhancing and modernising mobile applications across iOS and Android , delivering new features, improving performance, and helping create a seamless customer experience. Key Responsibilities Develop and enhance mobile applications using React Native . Deliver new functionality and improve existing user journeys across iOS and Android platforms. Work closely with Product, UX/UI, Engineering, and QA teams to deliver high-quality solutions....

?? Senior Automation Engineer | Playwright | TypeScript | AI-Driven Testing | £400-440pd | Outside IR35 ?? Remote First (Occasional visits to the Cheshire office) ?? £400-440 per day ?? 3-Month Initial Contract ?? Outside IR35 Lead the evolution of modern test automation within a forward-thinking software business that's investing heavily in engineering excellence and AI-powered development. We're looking for an experienced Senior Automation Engineer who enjoys shaping quality practices, mentoring others and driving automation strategy-not just writing automated tests. This is an opportunity to influence how an engineering organisation approaches testing, embedding modern automation practices while championing the use of AI to improve software quality and delivery. The Opportunity You'll act as the technical lead for automation engineering, helping define best practices, improving automation frameworks and working closely with Product and Engineering teams to...

🚀 Senior Automation Engineer | Playwright | TypeScript | AI-Driven Testing | £400-440pd | Outside IR35 📍 Remote First (Occasional visits to the Cheshire office) 💰 £400-440 per day 📄 3-Month Initial Contract 🕒 Outside IR35 Lead the evolution of modern test automation within a forward-thinking software business that's investing heavily in engineering excellence and AI-powered development. We're looking for an experienced Senior Automation Engineer who enjoys shaping quality practices, mentoring others and driving automation strategy—not just writing automated tests. This is an opportunity to influence how an engineering organisation approaches testing, embedding modern automation practices while championing the use of AI to improve software quality and delivery. The Opportunity You'll act as the technical lead for automation engineering, helping define best practices, improving automation frameworks and working closely with Product and Engineering teams...

Senior Data Quality Engineer £500-525 per day Outside IR35 Initial contract to December 2026 Hybrid (London) Leading Financial Services business is looking to bring in a Senior Data Quality Engineer to join its Finance Data & Reporting Product Team. This is a hands-on contract focused on data quality, testing, reconciliation and automation across a modern cloud data platform. Working across the full data lifecycle, you will validate finance data from source systems through to Snowflake, dbt and Power BI, while enhancing an existing data quality framework and driving improvements in test automation and quality engineering practices. Key Responsibilities Design and execute end-to-end data quality, validation and reconciliation testing. Validate data across source systems, Snowflake, dbt transformations and Power BI reporting. Enhance and extend the existing dbt Core testing framework. Build automated data quality, regression and reconciliation checks....

Senior Data Quality Engineer £500-525 per day | Outside IR35 | Initial contract to December 2026| Hybrid (London) Leading Financial Services business is looking to bring in a Senior Data Quality Engineer to join its Finance Data & Reporting Product Team. This is a hands-on contract focused on data quality, testing, reconciliation and automation across a modern cloud data platform. Working across the full data life cycle, you will validate finance data from source systems through to Snowflake, dbt and Power BI, while enhancing an existing data quality framework and driving improvements in test automation and quality engineering practices. Key Responsibilities Design and execute end-to-end data quality, validation and reconciliation testing. Validate data across source systems, Snowflake, dbt transformations and Power BI reporting. Enhance and extend the existing dbt Core testing framework. Build automated data quality, regression and reconciliation checks....

Join a dynamic payments business leading the charge in cloud transformation and help shape the future of financial technology. Salary: £400 per day Technical PMO – Cloud Migration (Payments) London (Hybrid) | £400/day | Outside IR35 | 6 months We're looking for a Technical PMO to support a major cloud migration programme for a payments business, tracking engineering readiness across application and platform teams as they move to a cloud-first operating model. What you'll do: Own RAID logs, dependency tracking, and readiness reporting across engineering, platform, security and QA teams Track engineering blockers, evidence and prerequisites through to migration/cutover milestones Liaise directly with engineering leads to chase and verify technical readiness (not just report on it) Escalate risks and readiness gaps to Programme Leadership with clear recommendations What you'll bring: Proven PMO/governance experience on a cloud...

Role: Programme Test Lead Rate: £500 p/d Outside IR35 Location: Fully remote Duration: 2 months We are seeking an experienced Programme Test Lead to oversee testing activities across a complex portfolio of technology initiatives. You will be responsible for defining and delivering programme-level test strategies, managing testing risks, coordinating multiple delivery teams, and ensuring high-quality releases across the software delivery lifecycle. Working closely with technology, product, and business stakeholders, you will play a critical role in ensuring delivery excellence and business confidence. Key Responsibilitie sDefine and implement the overall testing strategy, standards, and best practices .Lead, mentor, and develop a team of QA Engineers and Test Leads .Oversee test planning, estimation, execution, and reporting across multiple projects .Ensure appropriate test coverage through functional, regression, integration, performance, and automation...

Contract Product Cybersecurity Engineer (TARA) Location: Hybrid on-site in Surrey for workshops/design sessions Duration: Initial 3 Months with potential to extend to 6 Months Rate: TBC based on experience, Outside IR35 status determined by the engaging consultancy) Right to work: UK right to work without sponsorship required. No security clearance needed. The Role A specialist product cybersecurity consultancy is looking for additional delivery capacity on an in-flight EU Cyber Resilience Act conformity programme for a UK manufacturer of specialist commercial vehicles. Five ISO/SAE 21434 threat analysis and risk assessments (TARAs) are in scope across three product lines, including CAN-based vehicle controllers with 4G telematics and a connected fleet-management product on an embedded Linux platform. The method, templates, governance framework and client relationship are already established and owned by the consultancy's Product Security Architect. This role is delivery...

Contract Product Cybersecurity Engineer (TARA) Location: Hybrid on-site in Surrey for workshops/design sessions Duration: Initial 3 Months with potential to extend to 6 Months Rate: TBC based on experience, Outside IR35 status determined by the engaging consultancy) Right to work: UK right to work without sponsorship required. No security clearance needed. The Role A specialist product cybersecurity consultancy is looking for additional delivery capacity on an in-flight EU Cyber Resilience Act conformity programme for a UK manufacturer of specialist commercial vehicles. Five ISO/SAE 21434 threat analysis and risk assessments (TARAs) are in scope across three product lines, including CAN-based vehicle controllers with 4G telematics and a connected fleet-management product on an embedded Linux platform. The method, templates, governance framework and client relationship are already established and owned by the consultancy's Product Security Architect. This role is delivery...

Full Stack Engineer (LLM/AI) £450 per day | Outside IR35 | 3-6 Month Contract | Hybrid (London) - 2 days onsite | ASAP Start Our trusted EdTech partner, supporting over 600 million users across 100 countries, is looking for an experienced Full Stack Engineer to help deliver the next generation of AI-powered language learning and assessment products. You'll be a hands-on engineer with strong Python, React, JavaScript/TypeScript and AWS experience, developing scalable cloud-native applications and integrating AI capabilities into production systems. Recent experience developing Chat or Messaging applications within the Education or Learning sector is essential. Key Responsibilities: Develop and maintain scalable full-stack applications using Python, React and AWS. Contribute to technical architecture, solution design and engineering best practice. Build high-quality, secure and performant software through short delivery iterations. Collaborate with Product, Design, QA and...

Full Stack Engineer (LLM/AI) £450 per day | Outside IR35 | 3-6 Month Contract | Hybrid (London) - 2 days onsite | ASAP Start Our trusted EdTech partner, supporting over 600 million users across 100 countries, is looking for an experienced Full Stack Engineer to help deliver the next generation of AI-powered language learning and assessment products. You'll be a hands-on engineer with strong Python, React, JavaScript/TypeScript and AWS experience, developing scalable cloud-native applications and integrating AI capabilities into production systems. Recent experience developing Chat or Messaging applications within the Education or Learning sector is essential. Key Responsibilities: Develop and maintain scalable full-stack applications using Python, React and AWS. Contribute to technical architecture, solution design and engineering best practice. Build high-quality, secure and performant software through short delivery iterations. Collaborate with Product, Design, QA...

Full Stack Engineer (LLM/AI) £450 per day | Outside IR35 | 3-6 Month Contract | Hybrid (London) - 2 days onsite | ASAP Start Our trusted EdTech partner, supporting over 600 million users across 100 countries, is looking for an experienced Full Stack Engineer to help deliver the next generation of AI-powered language learning and assessment products. You 'll be a hands-on engineer with strong Python, React, JavaScript/TypeScript and AWS experience, developing scalable cloud-native applications and integrating AI capabilities into production systems. Recent experience developing Chat or Messaging applications within the Education or Learning sector is essential. Key Responsibilities: Develop and maintain scalable full-stack applications using Python, React and AWS. Contribute to technical architecture, solution design and engineering best practice. Build high-quality, secure and performant software through short delivery iterations. Collaborate...