Full Stack Software Engineer 2c Codex in United Kingdom

About ElevenLabs ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $11B - multiples of 11, always. We have expanded from voice into three main platforms: ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale. ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages. ElevenAPI gives developers access to our leading AI audio foundational models. Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to work hard and create lasting positive impact, we want to hear from you. How we work High-velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy. Impact not job titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you. AI first: We use AI to move faster with higher-quality results. We do this across the whole company—from engineering to growth to operations. Excellence everywhere: Everything we do should match the quality of our AI models. Global team: We prioritize your talent, not your location. What we offer Innovative culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible. Growth paths: Joining ElevenLabs means joining a

About ElevenLabs ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $11B - multiples of 11, always. We have expanded from voice into three main platforms: ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale. ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages. ElevenAPI gives developers access to our leading AI audio foundational models. Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to work hard and create lasting positive impact, we want to hear from you. How we work High-velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy. Impact not job titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you. AI first: We use AI to move faster with higher-quality results. We do this across the whole company—from engineering to growth to operations. Excellence everywhere: Everything we do should match the quality of our AI models. Global team: We prioritize your talent, not your location. What we offer Innovative culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible. Growth paths: Joining ElevenLabs means joining a

About ElevenLabs ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $11B - multiples of 11, always. We have expanded from voice into three main platforms: ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale. ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages. ElevenAPI gives developers access to our leading AI audio foundational models. Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to work hard and create lasting positive impact, we want to hear from you. How we work High-velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy. Impact not job titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you. AI first: We use AI to move faster with higher-quality results. We do this across the whole company—from engineering to growth to operations. Excellence everywhere: Everything we do should match the quality of our AI models. Global team: We prioritize your talent, not your location. What we offer Innovative culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible. Growth paths: Joining ElevenLabs means joining a

We're looking for an ML Data & Platform Engineer to own the infrastructure that powers our speech AI models: the pipelines that source and prepare training data, and the platform that trains, evaluates, and serves them in production. Speech AI has a data problem most ML teams don't, and you'll be at the centre of solving it, working as part of our ML team to remove friction across the entire lifecycle and get better models into production faster. This is a broad, cross-functional role suited to someone who enjoys working across the full stack: data infrastructure, distributed systems, and production ML, and who takes ownership of problems end to end rather than waiting to be told what to fix. What you'll do Designing, building, and maintaining scalable data pipelines for ingesting, transforming, validating, and storing large datasets used to train our models Developing and maintaining web scraping and data acquisition solutions to keep training datasets fresh, high-quality, and available at scale Building and operating the infrastructure that lets the ML team deploy and evaluate new models quickly, and that serves models efficiently and reliably in production Optimising infrastructure for both iteration speed and production reliability, including GPU utilisation, job scheduling, and training efficiency Implementing observability (monitoring, logging, alerting) across data pipelines and ML systems to catch issues early and keep things running smoothly Troubleshooting complex issues across distributed systems, spanning data infrastructure, training, and inference Continuously improving our data and MLOps practices, and helping shape the roadmap for how our platform evolves as we scale What you'll need Strong proficiency in Python and SQL, with a solid backend or data engineering foundation Hands-on experience with containerisation and orchestration (Docker, Kubernetes), and working with a major cloud provider Experience building data pipelines and ETL/ELT processe

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. The opportunity At Synthesia we really care about video generation, especially about human centric avatar video generation. This led us to release models such as EXPRESS-Video , and soon our latest video model - these are the best avatar video models in the world, and we are committed to continuing and double down our efforts in leading that area. Our goal is to get to human centric video models that can generate arbitrary long videos at high resolution with arbitrary actions and events. That means continuously training large generative video models from scratch with the proprietary data pipelines and compute infrastructure to support it at scale. We are looking for a technical leader who owns the full stack end-to-end, someone who bridges pre-training and post-training, sets long-term direction alongside research leadership, and is personally present at the hardest parts of the work. If building foundation model capability from the ground up at a company genuinely committed to leading the field sounds like the right next challenge, this role was written for you. About the role Synthesia's video generation capability is core to everything we ship. It involves roughly 15 people working daily across pre-training a

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that. We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft. We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! We’re looking for a senior engineer to help build, maintain and evolve the training framework that powers our frontier-scale language models. This role sits at the intersection of large-scale training, distributed systems, and HPC infrastructure. You will design and maintain the core components that enable fast, reliable, and scalable model training — and build the tooling that connects research ideas to thousands of GPUs. If you enjoy working across the full stack of ML systems, this role gives you the opportunity and autonomy to have massive impact. What You’ll Work On Build and own the training framework responsible for large-scale LLM training. Design distributed training abstractions (data/tensor/pipeline parallelism, FSDP/ZeRO strategies, memory management, checkpointing). Improve training throughput and stability on multi-node clusters (e.g., GB200/300, AMD, H200/100). Develop and maintain tooling for monitoring, logging, debugging, and developer ergonomics. Collaborate closely with infra teams to ensure our cluster, container environments, and hardware configurations support high-performance training. Investigate and res

Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading. About the Team: Bitstamp Exchange Platform Bitstamp made history in 2011 as the world’s first regulated crypto exchange. As a key part of the Robinhood family, the Exchange Platform team owns the full service lifecycle. We are the architects of a modern, high-velocity ecosystem that enables our global expansion, ensuring the world’s longest-running exchange remains unshakeable. The Role As a Senior Backend Engineer integrated into the Exchange Platform team, you will be a key driver of our modernization strategy. You will be an essential part of building the new generation infrastructure for low-latency services in the cloud, adopting cutting-edge technologies to drive our high-velocity ecosystem. This role is based in our London office(s), with in-person attendance expected at least 3 days per week. At Robinhood, we believe in the power of in-person work to accelerate progress, spark innovation, and strengthen community. Our office experience is intentional, energizing, and designed to fully support high-performing teams. Requires participation in an on-call rotation to support business needs. What You’ll Do Build Next-Gen Infrastructure: Architect and implement high-availability, low-latency cloud infrastructure that ensures performance and portability across our ecosystem. Modernize and Scale: Lead the transition of our services to modern, containerized environments, optimizing deployment and scaling workflows. Robinhood Ecosystem Integration: Manage and execute high-priority integration projects that align Bitstamp's backend with Robinhood's global infrastructure. Evolve the Stack: Identify and implement back

Fanatics Commerce is the global leader in licensed sports merchandise, operating a vertically integrated platform that designs, manufactures, and delivers officially licensed apparel, jerseys, headwear, and collectibles for major leagues, teams, and events worldwide. With more than 900 e-commerce sites and a global omnichannel presence across digital, in-venue, and retail, Fanatics Commerce reaches fans in over 180 countries and powers official fan experiences for many of the world's most iconic sports properties. At Fanatics, we bring our BOLD Leadership Principles to life every day - building championship teams, obsessing over fans, acting with entrepreneurial speed, and delivering with a determined and relentless mindset. ROLE OVERVIEW The General Manager will lead the full store team at Fanatics' flagship NBA Store on Oxford Street, driving sales performance, maintaining first-class commercial and visual standards, and ensuring the store is always ready for product launches and key NBA calendar moments. Working closely with Retail Operations and Merchandising teams, this role integrates flagship trading with the broader NBA calendar, including season tip-off, playoffs, and international games. The General Manager delivers business and fan impact through BOLD leadership and execution excellence, leveraging data, automation, and AI-enabled insights. HOW WILL YOU DRIVE IMPACT Success is measured by the ability to deliver results through BOLD capabilities and measurable outcomes. Team & Leadership Impact (Build Championship Teams) Cross-Functional Leadership: • Partner with Retail Operations, Merchandising, Stock, and Visual Merchandising functions to ensure seamless product launches, peak trading preparation, and alignment to the NBA calendar. • Maintain effective communication with head office functions and wider business stakeholders to ensure the flagship operation integrates with broader commercial priorities. People Leadership: • Lead, motivate, and

About THG Ingenuity THG Ingenuity is a fully integrated digital commerce ecosystem, designed to power brands without limits. Our global end-to-end tech platform is comprised of three products: THG Commerce, THG Studios, THG Fulfilment. Each represents a single, unified solution, overcoming challenges and taking brands direct-to-consumer. Our client portfolio includes globally recognised brands such as Coca-Cola, Nestle, Elemis, Homebase, and Proctor & Gamble. Spa Supervisor Full Time | 40 Hours per Week King Street Townhouse Hotel Reporting to the Spa & Operations Manager The Spa Supervisor will support the Spa Manager in the day-to-day operation of the Spa and Gym, helping to ensure exceptional guest experiences, high operational standards and a positive, well-organised working environment. Key Responsibilities Support the Spa Manager with the daily operation of the Spa and Gym. Supervise and guide the team during assigned shifts, providing direction and support where required. Act as the point of contact for colleagues and guests during the Spa Manager’s absence or when delegated. Assist with duty management responsibilities and ensure the smooth running of the department. Support the achievement of revenue targets across treatments, memberships, retail and leisure. Monitor team productivity, stock usage and operational efficiency, reporting any concerns to the Spa Manager. Ensure all guest interactions reflect the luxury standards and values of King Street Townhouse Hotel & Spa. Monitor treatment, service, presentation and operational standards, addressing minor issues promptly and escalating matters where necessary. Help ensure that the guest journey, from booking and arrival through to treatment and departure, is seamless and personalised. Deliver exceptional treatments and provide professional hosting for spa guests, where appropriately qualified. Assist with rota planning and resource allocation in line with business levels and operat

About THG Ingenuity THG Ingenuity is a fully integrated digital commerce ecosystem, designed to power brands without limits. Our global end-to-end tech platform is comprised of three products: THG Commerce, THG Studios, THG Fulfilment. Each represents a single, unified solution, overcoming challenges and taking brands direct-to-consumer. Our client portfolio includes globally recognised brands such as Coca-Cola, Nestle, Elemis, Homebase, and Proctor & Gamble. About the Role The Head of Shift Operations (HSO) is the senior leader accountable for all aspects of shift performance across operations, safety, engineering, and people management. Safety is the foundation of the role. The HSO ensures a safe environment for all colleagues, contractors, visitors, and customers on site, embedding a safety-first culture where every interaction is controlled, measured, and effective. The HSO drives operational excellence by working collaboratively with internal business units and stakeholders to meet agreed KPIs, uphold Service Level Agreements (SLAs), protect stock integrity, and deliver an outstanding customer experience. As the people lead on shift, the HSO is responsible for the welfare, development, and day-to-day management of all colleagues and team leaders, ensuring ER casework, absence management, and engagement are handled consistently and to the highest standard. The HSO translates business objectives into clear shift goals, setting expectations that drive performance, accountability, and a continuous improvement mindset across the entire operation. As the second most senior leader on site, the HSO is regularly required to assume full site accountability, making critical operational decisions and leading all functions in the absence of senior site leadership. The HSO is responsible for planning and executing volume demand in line with targeted client cost-per-unit (CPU) thresholds, ensuring cost efficiency is maintained throughout the shift to max

About THG Ingenuity THG Ingenuity is a fully integrated digital commerce ecosystem, designed to power brands without limits. Our global end-to-end tech platform is comprised of three products: THG Commerce, THG Studios, THG Fulfilment. Each represents a single, unified solution, overcoming challenges and taking brands direct-to-consumer. Our client portfolio includes globally recognised brands such as Coca-Cola, Nestle, Elemis, Homebase, and Proctor & Gamble. JOB DESCRIPTION: Location : Hale, Cheshire Position : Full-Time, Permanent Hours : 40 hours per week, variable shifts including some weekends (5 days a week) Shift patterns : Monday - Thursday 9.30pm - 5.30am; Friday - Sunday 9pm - 5am Salary : Competitive, reflecting your skills and experience We are currently recruiting for a full-time Night Cleaner to join our team at Hale Country Club & Spa. Hale Country Club & Spa offers an exclusive environment dedicated to enhancing well-being and lifestyle. The club features a state-of-the-art gym, luxurious spa facilities, and a range of wellness services designed to help members achieve their fitness and relaxation goals. Explore more about Hale Country Club here. PRIMARY ROLE RESPONSIBILITIES: In accordance with the cleaning specification clean all centre areas including: offices, stores, toilets, restaurant, showers, sports areas, changing rooms, shower areas, stairs, landing, corridors, sauna/steam rooms, fitness gyms, receptions and all furniture and fittings contained in these areas. Duties to include: wet mop, dry mop, vacuum, sweep, buff, spot clean, wipe, clean, wash, sanitise, scrub, dust, etc. Replenish paper towels, soap, toilet paper, bin liners. Use machines, tools, equipment and materials as necessary. Empty all litter bins, into appropriate containers, remove to dustbin compound. Ensure a high standard of customer care is achieved at all times. Training is an essential part of the post and requires all employees

About THG Ingenuity THG Ingenuity is a fully integrated digital commerce ecosystem, designed to power brands without limits. Our global end-to-end tech platform is comprised of three products: THG Commerce, THG Studios, THG Fulfilment. Each represents a single, unified solution, overcoming challenges and taking brands direct-to-consumer. Our client portfolio includes globally recognised brands such as Coca-Cola, Nestle, Elemis, Homebase, and Proctor & Gamble. JOB DESCRIPTION: Location : Hale, Cheshire Position : Full-Time, Permanent Hours : 40 hours per week, variable shifts including some weekends (5 days a week) Shift patterns : Monday - Thursday 9.30pm - 5.30am; Friday - Sunday 9pm - 5am Salary : Competitive, reflecting your skills and experience We are currently recruiting for a full-time Night Cleaner to join our team at Hale Country Club & Spa. Hale Country Club & Spa offers an exclusive environment dedicated to enhancing well-being and lifestyle. The club features a state-of-the-art gym, luxurious spa facilities, and a range of wellness services designed to help members achieve their fitness and relaxation goals. Explore more about Hale Country Club here. PRIMARY ROLE RESPONSIBILITIES: In accordance with the cleaning specification clean all centre areas including: offices, stores, toilets, restaurant, showers, sports areas, changing rooms, shower areas, stairs, landing, corridors, sauna/steam rooms, fitness gyms, receptions and all furniture and fittings contained in these areas. Duties to include: wet mop, dry mop, vacuum, sweep, buff, spot clean, wipe, clean, wash, sanitise, scrub, dust, etc. Replenish paper towels, soap, toilet paper, bin liners. Use machines, tools, equipment and materials as necessary. Empty all litter bins, into appropriate containers, remove to dustbin compound. Ensure a high standard of customer care is achieved at all times. Training is an essential part of the post and requires all employees

🚀 About WRITER WRITER is where the world's leading enterprises orchestrate AI-powered work. Our vision is to expand human capacity through superintelligence. And we're proving it's possible – through powerful, trustworthy AI that unites IT and business teams together to unlock enterprise-wide transformation. With WRITER's end-to-end platform, hundreds of companies like Mars, Marriott, Uber, and Vanguard are building and deploying AI agents that are grounded in their company's data and fueled by WRITER's enterprise-grade LLMs. Valued at $1.9B and backed by industry-leading investors including Premji Invest, Radical Ventures, and ICONIQ Growth, WRITER is rapidly cementing its position as the leader in enterprise generative AI. Founded in 2020 with office hubs in San Francisco, New York City, Seattle, Austin, Chicago, and London, our team thinks big and moves fast, and we're looking for smart, hardworking builders and scalers to join us on our journey to create a better future of work with AI. 📐 About the role We are looking for a visionary and execution-oriented AI transformation lead to serve as a high-impact partner for our most strategic Fortune 100 accounts. In this role, you’ll be the architect of change, moving beyond simple software implementation to help the world's largest organizations fundamentally rethink how they work. You’ll sit at the intersection of business strategy and cutting-edge technology, translating the power of the WRITER platform into measurable P&L impact and helping executives navigate the shift to an AI-first operating model. This is a rare opportunity to build the playbook for enterprise AI transformation. You won’t just be managing accounts; you’ll be driving the next industrial revolution by helping C-suite leaders move from AI experimentation to full-scale value realization. Your work will directly influence WRITER's product roadmap and help define how the world’s biggest brands use superintelligence to expand human capacity. Thi

🚀 About WRITER WRITER is where the world's leading enterprises orchestrate AI-powered work. Our vision is to expand human capacity through superintelligence. And we're proving it's possible – through powerful, trustworthy AI that unites IT and business teams together to unlock enterprise-wide transformation. With WRITER's end-to-end platform, hundreds of companies like Mars, Marriott, Uber, and Vanguard are building and deploying AI agents that are grounded in their company's data and fueled by WRITER's enterprise-grade LLMs. Valued at $1.9B and backed by industry-leading investors including Premji Invest, Radical Ventures, and ICONIQ Growth, WRITER is rapidly cementing its position as the leader in enterprise generative AI. Founded in 2020 with office hubs in San Francisco, New York City, Seattle, Austin, Chicago, and London, our team thinks big and moves fast, and we're looking for smart, hardworking builders and scalers to join us on our journey to create a better future of work with AI. 📐 About the role We are looking for a visionary and execution-oriented AI transformation lead to serve as a high-impact partner for our most strategic Fortune 100 accounts. In this role, you’ll be the architect of change, moving beyond simple software implementation to help the world's largest organizations fundamentally rethink how they work. You’ll sit at the intersection of business strategy and cutting-edge technology, translating the power of the WRITER platform into measurable P&L impact and helping executives navigate the shift to an AI-first operating model. This is a rare opportunity to build the playbook for enterprise AI transformation. You won’t just be managing accounts; you’ll be driving the next industrial revolution by helping C-suite leaders move from AI experimentation to full-scale value realization. Your work will directly influence WRITER's product roadmap and help define how the world’s biggest brands use superintelligence to expand human capacity. Thi

About Yondr Yondr is a disruptor. We challenge convention and simplify complexity. A global developer, owner operator and service provider of data centers, we deliver complex data center capacity needs for the world’s largest tech companies. Our exponential growth sees us looking for extraordinary people to help accelerate us towards our vision: a tomorrow without constraints. But we can’t do this without you. About the Role Yondr Group, a global developer, owner and operator of hyperscale data centres, is seeking an experienced lawyer to support its growing EMEA business. Reporting to the Legal Director EMEA, the successful candidate will act as the primary legal adviser to Yondr's design, construction and operations teams across the EMEA region. The role will support the full project lifecycle, from development, procurement and financing through construction, completion and operations. The successful candidate will work closely with project delivery, commercial, procurement and operational teams, supporting projects involving a range of delivery models, funding structures and stakeholders, including customers, lenders, investors, contractors, consultants, utility providers and suppliers. The role will be expected to operate independently on day-to-day matters, leading legal support across Yondr's EMEA construction and operations portfolio whilst managing legal risk and stakeholder requirements. This includes ensuring project documentation appropriately reflects contractual, leasing, funding and other stakeholder requirements. Minimum Qualifications Qualified solicitor with 6+ years' PQE with significant experience in primarily non-contentious construction, infrastructure, energy or data centre projects (preferred). Have trained at a reputable law firm or within the legal function of a reputable data centre, construction, infrastructure, energy or technology business. Experience negotiating and managing com