python developer qa tester jobs in London

Software Tester (QA)London (Hybrid, 2 days per week in-office)£40,000 - £50,000 + Holiday + Hybrid Working + Career Development OpportunitiesAre you a detail-oriented Software Tester or QA professional looking to play a key role in delivering high-quality software products while working with cutting-edge technology across sports data, AI, machine learning...

OverviewSoftware Engineer - Reinforcement LearningWe’re building autonomous agents that think like engineers: they run every critical user journey, catch failures before users do, and self-heal as the codebase evolves. Real AI teammates, not test scripts that break on impact. We’re venture-backed and led by operators who’ve scaled Meta’s testing...

Job Title: Cyber Security Penetration Testing Consultant Locations: UK wide (hybrid work- 1x a month in office) Salary: Competitive salary and package (Depending on level of experience) Please Note: Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address history (typically including no...

Lyst is a global fashion shopping platform founded in London in 2010 and catering to over 160M shoppers per year. We offer our customers the largest assortment of premium and luxury fashion products in one place, curating pieces from 27,000 of the world's leading brands and stores. In 2025, Lyst joined Zozo, operators of Zozotown, the leading fashion...

DraftKings is seeking a Senior Data Scientist for the Sports Modeling team to develop data-driven models and pricing engines for our Sportsbook platform. You will design and implement models in Python and ensure integration with data assets and applications.You will collaborate with Trading, Product, Engineering, and QA to move projects from ideation to...

Smart Working is seeking a Senior PHP/Symfony Engineer to take hands-on ownership of backend development within a mature Symfony platform that handles marketing and revenue data for enterprise customers. You will work in a remote, cross-functional product squad alongside engineering, product, QA and DevOps, upgrading Symfony from 6.1 toward 7 and integrating...

Lyst is seeking a Senior Full-stack Engineer to join the Shop Experience squad in our Product Development tribe. You will design and build customer-facing features across the full stack using React, TypeScript, and Python (Django), influencing architecture and engineering practices.You will collaborate with Product, Design, Analytics, and QA to ship...

Описание:Step into a role where your work shapes the future of insurance. At Ageas/esure, we're building on an exciting foundation of 20 live AI use cases already empowering over 900 frontline colleagues — and we’re just getting started! As an AI Engineer, you’ll join a rapidly expanding function with huge opportunities to innovate, scale, and...

At Anaplan, we are a team of innovators focused on optimizing business decision-making through our leading AI-infused scenario planning and analysis platform so our customers can outpace their competition and the market.What unites Anaplanners across teams and geographies is our collective commitment to our customers’ success and to our Winning Culture.Our...

Fospha is dedicated to building the world's most powerful measurement solution for online retail. For over a decade, we've helped teams make smarter decisions with full-funnel marketing insights, forecasting, and optimisation.With Fospha, every team moves faster and grows smarter.About the roleWe're looking for a Data Scientist to join Fospha's Data Science...

Job Title : Lead AI Test EngineerLocation : LondonAbout the Job you are considering:We are seeking an experienced Lead AI Test Engineer to drive quality assurance and testing strategies for AIML powered applications Generative AI solutions and intelligent automation platforms The ideal candidate will combine strong expertise in software test engineering with...

Our client is a defence technology company. We're building the UK's next generation engineering powerhouse, providing critical technology that strengthens national security and resilience.We specialise in turning advances in sensing, AI, and communications into operational capability for the edge, where connectivity may be degraded or denied. Our work...

Ready to turn bold ideas into real-world impact? At Genpact, we don’t just adapt to change, we lead it. AI and digital innovation are transforming the way businesses work, and we’re at the forefront of it. Genpact’s AI Gigafactory, our industry-first accelerator, exemplifies how we scale advanced technology solutions to help global enterprises work...

Job Title: Cyber Security Penetration Testing Consultant Locations: UK wide (hybrid work- 1x a month in office) Salary: Competitive salary and package (Depending on level of experience) Please Note:Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address history (typically including no...

We are seeking a Quality Engineer with automation experience to help build reliable and efficient automated tests for our applications. You will develop automated test scripts, support CI/CD integration, and work alongside developers and DevOps teams to improve quality and speed of delivery. You'll use modern test automation tools and programming languages...

React work that powers markets rather than another customer-facing product. You'll build the web and desktop applications traders and market operators use to run, monitor and control exchange infrastructure, technology this firm licenses out to other markets too. Ownership over ticket-shuffling, on a platform where unreliable code has a visible...

We're pioneering a new role focused exclusively on quality assurance for GenAI/Agentic systems. As our QA Automation Engineer within AI, you'll develop testing strategies, evaluation frameworks, and quality metrics specifically designed for LLM-powered applications. This role requires a unique blend of QA expertise, understanding of GenAI behaviour, and...

We're looking for an experienced QA Automation Engineer to take ownership of testing strategy, quality assurance, and release readiness across a portfolio of enterprise applications. This is an opportunity to influence how technology is delivered, working closely with both internal stakeholders and external delivery partners to ensure solutions are reliable,...

Our client is a technology consultancy. Ready to keep quality at the heart of projects with impact?Do you want to make a real impact by ensuring quality in services? Are you ready to grow your skills in a supportive, knowledge-sharing community where you can achieve your potential? We're a growing tech consultancy that creates user-centred solutions with...

Anaplan, a leader in AI-infused scenario planning, is hiring a QA Automation Engineer within AI to design testing strategies and evaluation frameworks for GenAI features. You will develop automated coverage across evaluations, APIs, UIs, and performance tests in Python, and contribute to datasets and golden examples.Join a diverse team driving trustworthy...