python developer qa tester jobs in London

About InvestEngine We’re a London-based fintech on a mission to make ETF investing simple and accessible. Over 150,000 clients have trusted us with over £3.5 billion in assets — and we’re just getting started. We’ve been featured by Forbes, MoneyWeek, and Finder, and we’re growing fast with big ambitions. About the Role We’re looking for a...

OverviewOur Mission Reflection’s mission is to build open superintelligence and make it accessible to all. We’re developing open weight models for individuals, agents, enterprises, and even nation states. Our team of AI researchers and company builders come from DeepMind, OpenAI, Google Brain, Meta, Character.AI, Anthropic and beyond.About The Role Data...

Salary: £37,000 - 77,000 per year Requirements: Bachelors degree in Computer Science, Information Technology, or related field. 5+ years of software development experience. Strong experience with Python. Experience with FastAPI, Flask, or Django. Experience with REST API and microservices development. Strong knowledge of React.js. Experience with...

About Air AppsAt Air Apps, we believe in thinking bigger - and moving faster. We’re a family-founded company on a mission to create the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP), and we need your passion and ambition to help us change how people plan, work, and live. Born in Lisbon, Portugal, in 2018 - and now with...

Job Description Responsibilities • Have a basic understanding of the QA role. • Identify and test new data formats, enhancements and changes to designated feeds on the Real Time Ticker Plant. • Responsible for managing changes from specification through to testing and deployment on production systems according to the established guidelines •...

At Broadridge, we've built a culture where the highest goal is to empower others to accomplish more. If you’re passionate about developing your career, while helping others along the way, come join the Broadridge team.We are excited to announce an opportunity for a Senior Full Stack Developer to join our organization as part of our AI Enablement Team. In...

About Scale Factory We are an AI enablement consultancy. Delivering quality-led AI-first foundations, embedding capability and excellence into the foundational fabric of the companies we work with. We give leaders the confidence to move faster, take smarter risks and pursue transformation. Formerly Ten10, we have deep roots in Quality which means we don’t...

Location: hybrid/remoteReports to: CTO (permanent role) - No Visa SponsorshipThe companyAn early-stage legal tech SaaS business. Its platform automates document-heavy legal workflows for law firms and institutional clients. It has product-market fit, a growing customer base and a lean engineering team.The roleYou will lead the development of AI features in...

Arcadis Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. We are more than 34,000 people, in over 30 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world’s most...

Fospha is the measurement system enterprise retail and ecommerce brands run their business on. We give marketing teams one clear, daily view of what's actually working — across every channel and everywhere they sell, from their website to Amazon and TikTok Shop — down to the level of a single ad or piece of creative. It replaces guesswork and gut feel...

Competitive Day Rate | Tier 1 Banking Client | Hybrid (2-3 Days Onsite) Are you a Data QA expert who thrives in high-performance environments? Do you have the technical depth, leadership skills, and strategic mindset to drive data quality at an enterprise level? If so, we want to hear from you! 🚀 The Opportunity Join a leading financial institution as a...

Job DescriptionWe are looking for a certified Penetration Tester to join our client’s cybersecurity team and help safeguard critical systems through simulated attacks and red team assessments. You’ll be responsible for identifying vulnerabilities across networks, applications, and cloud infrastructure and providing actionable insights to reduce risk...

About Air AppsAt Air Apps, we believe in thinking bigger - and moving faster. We’re a family-founded company on a mission to create the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP), and we need your passion and ambition to help us change how people plan, work, and live. Born in Lisbon, Portugal, in 2018 - and now with...

AI Quality EngineerOur client, a well-known company in the financial services industry, is looking for a highly motivated and skilled AI Test Engineer to join their quality assurance team, working on cutting-edge AI-driven technologies. This role plays a critical part in ensuring the integrity, fairness, and reliability of AI models through close...

Company DescriptionAre you ready to join the forefront of technology innovation with Netcompany?As one of the fastest growing technology companies, we are disrupting the marketplace and revolutionizing the way businesses operate. Our vision is to be the leading digital challenger in Europe whilst evolving the next generation of IT consulting.Operating across...

QA Automation Engineer – Graduate ConsideredA unique opportunity for a QA Automation Engineer to join a well-funded early-stage technology company. Initially working remotely, with plans for a hybrid London office, you will help establish modern automated testing practices across a cutting-edge software platform. Working closely with software engineers,...

Building on more than 30 years of business expertise, Objectway is an international wealth, banking and asset management software provider empowering clients to embrace their future challenges while providing great performance today. The Group is a future-proof technology player with a well-established track record in the financial services industry and...

London, United Kingdom | Posted on 04/12/2025 We provide end-to-end IT solutions and services including Applications services, Data & Analytics services, AI/ML Technologies and Professional services in the UK and EU market. Job Description Experience Required: 15+ Years Role Overview The Test Environment Manager (TEM) is a senior, engineering-focused role...

Location: DMGT HQ - High Street Kensington, LondonPosition: Permanent About the Role Mail Technology is the IT service provider for the dmg media group of companies owned by DMGT (Daily Mail & General Trust). These include many well-known and widely loved brands such as Daily Mail, Mail Online, The Mail on Sunday, Metro, and The i Paper.Through our national...

FlexTrade Systems is a provider of customized multi-asset execution and order management trading solutions for buy- and sell-side financial institutions. Through deep client partnerships with some of the world's largest, most complex and demanding capital markets firms, we develop the flexible tools, technology and innovation that deliver our clients a...