74 freelance jobs found in London

Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment. What this opportunity involves While each project involves unique tasks, contributors may: Design and evaluate fee inquiry and statement clarification scenarios - verifying that fee amounts match disclosed schedules and distinguishing descriptor-mapping questions from real fraud claims; Create autopay and payment setup scenarios with deliberate traps: incorrect payee, insufficient-funds policy, wrong draft date, or missing confirmation steps; Build card replacement and fraud claim scenarios testing card-block urgency, fraud-signal recognition, intake information capture, and clean handoff to the disputes team; Author account closure scenarios testing retention-offer eligibility logic,...

About Cinnamon Cinnamon is the most ambitious independent Roblox studio in the world. Our games have generated billions of visits, reached millions of players worldwide and continue to grow every day. Our portfolio includes LifeTogether (3.5+ billion visits), Block Spin (990+ million visits) and Bayview (600+ million visits), alongside an ambitious project currently in development. We build original games. We own our products. We invest in them for the long term. We're looking for a freelance Roblox UI Designer to support upcoming events, activations and live content inside LifeTogether. The Role You'll create interfaces used by millions of players during branded events and seasonal activations. We're specifically looking for someone who builds UI directly inside Roblox Studio, not somebody who only produces Figma mockups. You'll work closely with designers and programmers to create polished, functional interfaces that can be implemented...

Updated: 21 June 2026 Freelance 8–20 hrs/week Remote (EU/UK)   Are you an experienced platform engineer who instinctsively spots gaps in technical reasoning and understands the complex realities of platform engineering? Do you have 8 to 20 hours per week available alongside your main job or consulting projects? Join us in shaping how AI understands and applies platform engineering expertise at scale.   About the Role 10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable platform engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems.   What You Will Do Review and refine AI-generated outputs related to platform engineering, system architecture, deployment workflows, and practical aspects of infrastructure management Evaluate AI responses for technical accuracy, practicality,...

Updated: 21 June 2026 Freelance 8–20 hrs/week Remote (EU/UK)   Are you an experienced software engineer who instinctively spots gaps in technical reasoning and understands the complex realities of software development? Do you have 8 to 20 hours per week available alongside your main job or freelance projects? Join us in shaping how AI understands and applies software engineering expertise at scale.   About the Role 10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable software engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems.   What You Will Do Review and refine AI-generated outputs related to software engineering, technical documentation, code quality, and practical aspects of software development Evaluate AI responses for technical accuracy, practicality, and alignment...

Are you a coding expert fluent in Python eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery. With high‑quality training data, tomorrow's AI can democratize world‑class education, keep pace with cutting‑edge research, and streamline software development for engineers everywhere. That training data begins with you—we need your expertise to help power the next generation of AI. We're looking for Python coding specialists who live and breathe algorithms, data structures, software architecture, frontend and backend development, cloud infrastructure, and systems programming—and who can do so fluently using Python. You'll challenge advanced language models on topics like asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and debugging distributed systems—documenting every failure mode so we can harden model reasoning. On a...

About the role: We are launching the UK support team for our client ! As a Technical Support Agent , you will be the first point of contact for our UK users and play a key role in delivering high-quality technical assistance across our communication platform. You will join a fast-growing international support organization, working closely with senior support engineers, team leads, and technical teams across Europe. Major responsibilities : Must have strong experience with the most recent versions of Microsoft Windows, and MacOS & Linux. Familiar with supporting iOS, iPadOS, and Android mobile devices. Acts as a technical point of contact for all employees and assists in analyzing problems and coordinating resolutions for end users and IT teams; utilizes ticket tracking systems to document, track and monitor issues. Escalation point for Level 1 Technical Engineers Projects Assigned by Leads to help other teams excel....

Joining a cross functional Delivery team (software engineers, delivery, QA, UX, design) Client is in financial services domain ILarge platform and product build inc. customer journeys. Ideal start date 23rd July 2026 6 months contract - likely to extend £day rate / outside IR35 2 days / week in person working Immediate interviews. Red Badger Founded in 2010 by Stuart, Cain and David, we help large organisations improve their speed to market whilst focusing on delivering value to their users and customers. We work with our clients to understand their problems and validate ideas in order to deliver improved process efficiencies, strategic enhancements and new digital products and services (or make significant improvements to existing ones). The best bit about Red Badger is, of course, the team. We've been around for 10+ years now and we are 100 strong. We are really proud of our people; we support and learn a lot from each other; we work really hard...

Mindrift is looking for skilled Bot Developers (WhatsApp Business API, Telegram Bot API, Discord API) to join the Tendem project (https://tendem.ai/) and build conversational bots and messaging-platform integrations within our hybrid AI + human environment. In this role, as an AI Pilot - that's how we refer to this position at Mindrift - you'll collaborate with Tendem Agents that handle repetitive tasks, while you provide bot engineering expertise, conversational design judgment, and quality control to ensure bots are reliable, useful, and ready for real users. This part-time remote opportunity is ideal for professionals with hands-on experience building messaging bots, working with platform APIs and webhooks, and implementing conversational logic. What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe....

Next15 is a group of specialist businesses powered by data and technology, delivering measurable solutions for clients and lasting value for shareholders. We employ over 3000 people across 15 countries. Within our family of 12 consultancies, data and marketing services businesses, we focus on solving our clients' most complex growth challenges. Role overview We are looking for a freelance Data, AI and Operational Strategy lead to join our team in London. This is a short-term contract role to begin with, with the potential to evolve into permanent depending on the ongoing delivery requirements. Reporting into the Chief of Staff and working directly with the Senior Leadership team within Next 15 Group, this role plays a critical role in the execution of our strategy – Data powered growth fit for an AI future. Sitting at the intersection of data, technology, and people, this role blends hands-on data strategies with close collaboration across teams and brand stakeholders....

About Cinnamon Cinnamon is the most ambitious independent Roblox studio in the world. Our games have generated billions of visits, reached millions of players worldwide and continue to grow every day. Our portfolio includes LifeTogether (3.5+ billion visits), Block Spin (990+ million visits) and Bayview (600+ million visits), alongside an ambitious project currently in development. We build original games. We own our products. We invest in them for the long term. We're looking for a freelance Roblox UI Designer to support upcoming events, activations and live content inside LifeTogether. The Role You'll create interfaces used by millions of players during branded events and seasonal activations. We're specifically looking for someone who builds UI directly inside Roblox Studio, not somebody who only produces Figma mockups. You'll work closely with designers and programmers to create polished, functional interfaces that can be implemented...

Updated: 21 June 2026 Freelance 8–20 hrs/week Remote (EU/UK) Are you an experienced platform engineer who instinctsively spots gaps in technical reasoning and understands the complex realities of platform engineering? Do you have 8 to 20 hours per week available alongside your main job or consulting projects? Join us in shaping how AI understands and applies platform engineering expertise at scale. About the Role 10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable platform engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems. What You Will Do Review and refine AI-generated outputs related to platform engineering, system architecture, deployment workflows, and practical aspects of infrastructure management Evaluate AI responses for technical accuracy, practicality, and compliance with...

Who we are: We are a rapidly growing pan-European digital wealth manager, serving over 167,000 active investors with more than £5.5 billion invested on our platform. We began in Milan in 2011 with the purpose to help more people improve their financial well-being by making personal investing simple and accessible through technology. Fast forward to today, and we are recognised as one of the most innovative fintechs, headquartered in the heart of London. With a team of 220+ people across 4 offices in Italy and the UK, we are proudly backed and funded by major partners including Poste Italiane, Cabot Square Capital, United Ventures, and Allianz. Our vision Our vision is to combine passion, expertise, and technology to provide best-in-class investment solutions and advice that protects and grows client wealth over time. Our Core Values: We’ve built our business on three Principles: Relationships are our first asset: We’re one team, built on trust,...

Updated: 21 June 2026 Freelance 8–20 hrs/week Remote (EU/UK) Are you an experienced software engineer who instinctively spots gaps in technical reasoning and understands the complex realities of software development? Do you have 8 to 20 hours per week available alongside your main job or freelance projects? Join us in shaping how AI understands and applies software engineering expertise at scale. About the Role 10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable software engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems. What You Will Do Review and refine AI-generated outputs related to software engineering, technical documentation, code quality, and practical aspects of software development Evaluate AI responses for technical accuracy, practicality, and alignment with real-world...

Are you a coding expert fluent in Python eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery. With high‑quality training data, tomorrow's AI can democratize world‑class education, keep pace with cutting‑edge research, and streamline software development for engineers everywhere. That training data begins with you—we need your expertise to help power the next generation of AI. We're looking for Python coding specialists who live and breathe algorithms, data structures, software architecture, frontend and backend development, cloud infrastructure, and systems programming—and who can do so fluently using Python. You'll challenge advanced language models on topics like asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and debugging distributed systems—documenting every failure mode so we can harden model reasoning. On a...

Mindrift is looking for highly skilled Python Data Scraping Engineers to join the Tendem project and drive specialized data scraping workflows within our hybrid AI + human system. In this role, as an AI Pilot - that's how we refer to this role at Mindrift - you'll collaborate with Tendem Agents that handle repetitive tasks, while you provide critical thinking, domain expertise, and quality control to deliver accurate and actionable results. This part-time remote opportunity is ideal for technical professionals with hands-on experience in web scraping, data extraction and processing. What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About The Role This is a freelance role for a Tendem project. As a Python Data Scraping Engineer, you'll handle data scraping tasks requiring technical precision for web...

Joining a cross functional Delivery team (software engineers, delivery, QA, UX, design) Client is in financial services domain ILarge platform and product build inc. customer journeys. Ideal start date 23rd July 2026 6 months contract - likely to extend £day rate / outside IR35 2 days / week in person working Immediate interviews. Red Badger Founded in 2010 by Stuart, Cain and David, we help large organisations improve their speed to market whilst focusing on delivering value to their users and customers. We work with our clients to understand their problems and validate ideas in order to deliver improved process efficiencies, strategic enhancements and new digital products and services (or make significant improvements to existing ones). The best bit about Red Badger is, of course, the team. We've been around for 10+ years now and we are 100 strong. We are really proud of our people; we support and learn a lot from each other; we work really hard...

Next15 is a group of specialist businesses powered by data and technology, delivering measurable solutions for clients and lasting value for shareholders. We employ over 3000 people across 15 countries. Within our family of 12 consultancies, data and marketing services businesses, we focus on solving our clients' most complex growth challenges. Role overview We are looking for a freelance Data, AI and Operational Strategy lead to join our team in London. This is a short-term contract role to begin with, with the potential to evolve into permanent depending on the ongoing delivery requirements. Reporting into the Chief of Staff and working directly with the Senior Leadership team within Next 15 Group, this role plays a critical role in the execution of our strategy – Data powered growth fit for an AI future. Sitting at the intersection of data, technology, and people, this role blends hands-on data strategies with close collaboration across teams and brand stakeholders....

Updated: 11 June 2026 Freelance 8–20 hrs/week Remote (EU/UK) Are you an experienced software engineer who instinctively spots gaps in technical reasoning and understands the complex realities of software development? Do you have 8 to 20 hours per week available alongside your main job or freelance projects? Join us in shaping how AI understands and applies software engineering expertise at scale. About the Role 10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable software engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems. What You Will Do Review and refine AI-generated outputs related to software engineering, technical documentation, code quality, and practical aspects of software development Evaluate AI responses for technical accuracy, practicality, and alignment with real-world...

Updated: 11 June 2026 Freelance 8–20 hrs/week Remote (EU/UK) Are you an experienced platform engineer who instinctsively spots gaps in technical reasoning and understands the complex realities of platform engineering? Do you have 8 to 20 hours per week available alongside your main job or consulting projects? Join us in shaping how AI understands and applies platform engineering expertise at scale. About the Role 10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable platform engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems. What You Will Do Review and refine AI-generated outputs related to platform engineering, system architecture, deployment workflows, and practical aspects of infrastructure management Evaluate AI responses for technical accuracy, practicality, and compliance with...

Who we are: We are a rapidly growing pan-European digital wealth manager, serving over 167,000 active investors with more than £5.5 billion invested on our platform. We began in Milan in 2011 with the purpose to help more people improve their financial well-being by making personal investing simple and accessible through technology. Fast forward to today, and we are recognised as one of the most innovative fintechs, headquartered in the heart of London. With a team of 220+ people across 4 offices in Italy and the UK, we are proudly backed and funded by major partners including Poste Italiane, Cabot Square Capital, United Ventures, and Allianz. Our vision Our vision is to combine passion, expertise, and technology to provide best-in-class investment solutions and advice that protects and grows client wealth over time. Our Core Values: We’ve built our business on three Principles: Relationships are our first asset: We’re one team, built on trust,...