python developer qa tester jobs in London

About Wintermute Wintermute is a technology unicorn and one of the largest algorithmic trading companies, specialising in digital assets. We provide liquidity across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as supporting high profile blockchain projects and traditional financial institutions moving...

Savanta is looking for an experienced engineering team lead to lead an agile team building a cutting-edge AI platform for market research. About Us: Savanta is a leading data, market research and advisory company helping the world's leading brands make better decisions, faster. With over 500 people across offices in multiple countries, we combine deep...

About the company the company is redefining premium transportation across major cities in Europe, the US, and the Middle East. We blend cutting-edge technology with the craft of five-star chauffeuring to deliver an experience trusted by more than 100,000 active riders and 1,200 corporate accounts. We’re a profitable, fast-growing scale-up with $43M raised...

Azure DevOps EngineerRoughly 1 day a month in LondonRate: £500/day Inside IR35Duration: Until 31st March 2027Sector: NHS programmeOverviewWe're looking for an Azure DevOps Engineer to join a major NHS programme. You'll build and run the pipelines and cloud infrastructure behind services used across the health system. This role needs someone who has...

Internal Job Level: Associate Reports to: Rapid Application Development Manager Job Overview In this role you will be working with the Product, Infrastructure, QA, and Operations teams to solve complex problems at speed. Unlike our Low Latency team who build the exchange engine itself, the RAD (Rapid Application Development) team lives at the intersection of...

A World-Changing Company   Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more.The Role   Backend Software Engineers at Palantir build...

Job descriptionPlease note this is a speculative role. If we move to hire, the position will be hybrid and require days in our London studio as well as potential travel. We cannot provide visas or UK relocation for this position, as it will be a contract role.Framestore’s Immersive Studio is a world-leading innovator in crafting immersive experiences that...

About InvestEngine InvestEngine is a fast-growing fintech based in London, on a mission to make ETF investing simple and accessible. Over 150,000 clients have trusted us with more than £2,7 billion in assets — and we’re just getting started. We’ve been featured in MoneyWeek, Finder and Forbes, and we’re scaling quickly with big ambitions. About The...

Company DescriptionVersion 1 has celebrated 30 years in business and continues to be trusted by global brands to deliver technology and transformation solutions that drive customer success. Our deep expertise enables our customers to navigate the rapidly evolving technology landscape. We foster strong partnerships with global technology...

Sr. Engineer - Testing & Quality Assurance P 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...

Off-Cycle Internship OverviewJoin us on an Off Cycle Internship for 3-6 months working within one of our Quant focused business areas. Immerse yourself in our work and culture and gain invaluable insights with this longer internship.Why the Quant Off-Cycle Internship Programme?As an intern with Barclays you’ll be embedded with one of our Quant teams,...

We're looking for a Quality Engineer to join EPAM in London, in an onsite working mode, contributing to an AI-driven enterprise project for one of our clients. This role focuses on exposing internal enterprise tooling to AI agents via Model Context Protocol (MCP), ensuring robust quality engineering and compliance across innovative intelligent automation...

Role overview The Senior Performance Analyst will lead the day-to-day performance analysis for projects and services, helping teams understand what is working, what needs to improve and how success should be measured. The role requires strong analytical judgement, clear communication and the ability to guide others. You will work with multidisciplinary teams...

Summary Posted: 22 Jul 2026 Weekly Hours: 35 Role Number: 200673335-2114 Apple Services sits at the heart of Apple's most beloved experiences, a place where the culture of curiosity, creativity, and relentless attention to detail that defines Apple is channelled into shipping features that reach hundreds of millions of people every day. We're looking for a...

The Quant Trading team is responsible for trading and managing risks associated with different crypto products, including spots and derivatives. The team develops and implements trading strategies in fast-paced and complex trading environments.We are seeking an experienced Trading Analytics Developer to join our Quant Trading team and play a pivotal role in...

London, UKAbout GraphcoreGraphcoreis one of the world’s leading innovators in Artificial Intelligence compute.It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry.As part of the SoftBank Group,Graphcoreis a member of an...

A World-Changing Company   Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more.The Role   Backend Software Engineers at Palantir build...

Careers that change lives start here. Medtronic is a global leader in healthcare technology with a Mission to alleviate pain, restore health, and extend life. Our 95,000 employees work across more than 150 countries to put patients first — developing innovative medical technologies that improve the lives of 72+ million patients each year. Your unique...

**Data Tester (Data Migration) | £70,000 - £80,000 | Permanent** Join a growing Financial Services business expanding its Data Migration capability. You'll play a key role in ensuring the quality, accuracy and integrity of client data migrations, working closely with Data Engineers and delivery teams to test ETL processes, validate data and identify...

Role overview The Senior Performance Analyst will lead the day-to-day performance analysis for projects and services, helping teams understand what is working, what needs to improve and how success should be measured. The role requires strong analytical judgement, clear communication and the ability to guide others. You will work with multidisciplinary teams...