python developer qa tester jobs in London

Ready to work somewhere that cares more about how you build software than how fast you can ship it? At Opencast, we don’t measure developers by the number of tickets you complete. We care about engineering craft, clean design and thoughtful problem-solving.   Opencast consultants deliver in complex environments, pairing often and working with others who...

Corporate Engineering AI (CE AI) TeamThe Corporate Engineering AI team is the central enablement and platform delivery function for LSEG’s internal agentic AI ecosystem. The team’s mission is to scale safe, high‑quality AI capabilities across the enterprise by providing shared platforms, patterns, governance, and delivery support. CE AI owns and...

Corporate Engineering AI (CE AI) TeamThe Corporate Engineering AI team is the central enablement and platform delivery function for LSEG’s internal agentic AI ecosystem. The team’s mission is to scale safe, high‑quality AI capabilities across the enterprise by providing shared platforms, patterns, governance, and delivery support. CE AI owns and...

Software Engineer-Cybersecurity Analytics & EnforcementLONDON, United KingdomJob InfoJob Identification 21633Job Category Software DevelopmentPosting Date 08/13/2026, 03:39 PMLocations LONDON, United KingdomJob Schedule Full timeJob DescriptionOffice based in our Moorgate London premises, 4 days per weekJoin Fortinet, a cybersecurity pioneer with over two...

A fantastic opportunity has arisen for a Technical Research Assistant to join a fast-paced, entrepreneurial team based in the City. This is a varied role combining market research, data analysis, technical data management and digital product support.Technical Research AssistantSpecialist business consultancyHybrid£15.40 - £17.85 + holiday payASAP...

Hi! This is the Flipper team.We are the creators of Flipper Zero — a portable device for tech enthusiasts and engineers. It's a gadget with an awesome community that brings together millions of people around the world.We're building a new product — Flipper One. It's a full-featured ARM-based computer running Linux in a compact form factor, powered by the...

**Mission** Gorilla is the margin intelligence platform for energy retailers. We help some of the largest energy companies in UK, Europe, the US, and Australia understand where they make and lose money, from portfolio level down to individual customer contracts. We are entering a phase where protecting and growing our existing customer base matters as much...

**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...

Solutions Engineers (SEs) at the company are passionate about product development, client requests for enhancements and the resolution of production issues. We expect our SEs to be AI-literate and to actively use AI tools in their day-to-day workflow to work faster, smarter, and with higher quality.DESCRIPTIONWork with Client Service Representative and...

Suade is a market-leading regtech SaaS company with cutting‑edge technology that automates regulatory reporting, compliance and financial risk solutions for financial institutions. Our technology outperforms the competition on every metric, and we are supported by unprecedented need for new technology to solve complex and growing regulatory burdens. We...

A fantastic opportunity has arisen for a Technical Research Assistant to join a fast-paced, entrepreneurial team based in the City. This is a varied role combining market research, data analysis, technical data management and digital product support. Research AssistantSpecialist business consultancy Hybrid £15.40 - £17.85 + holiday payASAP...

Job Title: DevOps Engineer Type of Employment: Permanent Location: London Aquis maintains a presence in both the UK and EU (primarily Paris). Aquis operates a hybrid working environment with a mixture of office and working from home days. In London we currently operate a minimum of 3 days working in the office. Reports to: Senior DevOps Manager Job...

Quality Assurance Automation EngineerBDS are currently recruiting for a Quality Assurance Automation Engineer to work as part of a team with a well-known Housing Association from their Kings Cross office.Main duties include but not limited too;Developing and maintaining test strategies and plans for new solutions, changes, and upgrades.Overseeing the testing...

Ready to work somewhere that cares more about how you build software than how fast you can ship it? At Opencast, we don’t measure developers by the number of tickets you complete. We care about engineering craft, clean design and thoughtful problem-solving.  Opencast consultants deliver in complex environments, pairing often and working with others who...

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading at our own risk. Headquartered in Chicago with offices...

A fantastic opportunity has arisen for a Technical Research Assistant to join a fast-paced, entrepreneurial team based in the City. This is a varied role combining market research, data analysis, technical data management and digital product support. Technical Research Assistant - Specialist business consultancy Hybrid £15.40 - £17.85 + holiday pay ASAP...

About Sparta Global Embark on a transformative career journey with Sparta Global, where diversity, innovation, and passion for technology converge. We welcome individuals from all backgrounds, offering not just jobs, but dynamic careers in the tech industry. You'll work alongside enthusiastic professionals, receiving top-tier training and mentorship to hone...

**Mission** Gorilla is the margin intelligence platform for energy retailers. We help some of the largest energy companies in UK, Europe, the US, and Australia understand where they make and lose money, from portfolio level down to individual customer contracts. We are entering a phase where protecting and growing our existing customer base matters as...

Who We AreHelsing is a defence AI company. Our mission is to protect our democracies. We aim to achieve technological leadership, so that open societies can continue to make sovereign decisions and control their ethical standards.Who We AreHelsing is a defence AI company. Our mission is to protect our democracies. We aim to achieve technological leadership,...

Veeva Systems is a mission-driven organization and pioneer in industry cloud, helping life sciences companies bring therapies to patients faster. As one of the fastest-growing SaaS companies in history, we surpassed $3B in revenue in our last fiscal year with extensive growth potential ahead. At the heart of Veeva are our values: Do the Right Thing, Customer...