Power And Performance Validation Engineer in United Kingdom

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. About the role The Data team manages the complete lifecycle of data for researchers - from sourcing and large-scale processing to delivering datasets that power our models. Data sits at the heart of our Research efforts and enables all other teams. As part of the Data team, you’ll work with over a million hours of video and audio data. This role exists at the intersection of applied research, data engineering, and ML infrastructure rather than being a traditional research position . You’ll build the world’s best human-centric data lake by collaborating closely with our model training teams. By understanding their requirements, you’ll extract new features and annotations that elevate our datasets. You should be passionate about enhancing model performance through high-quality, accurate datasets. Our infrastructure and pipelines are in great shape, and this role provides room to not only enhance them but also influence the team’s longer-term strategy. What we're looking for: A strong background in data-centric, applied Machine Learning, with hands-on experience improving model performance through data quality, curation, labeling, and evaluation rather than model architecture alone Experience working on the data la

About Dot Collective We are a new generation consultancy based across UK and EU and founded on the premises of the engineering excellence and empowering people to make an impact. We work with all modern tech stacks and typically run agile scrum on all our projects. About you Are you passionate about data and its transformational powers? Do you like being able to make a huge difference in a limited period of time? We might be just the right place for you. Your key skills and capabilities: Designing and implementing robust python testing automation frameworks using BDD (Behave) ETL Testing: Proven experience in testing ETL pipelines, data validation, and ensuring data quality Scripting automated tests and working collaboratively with other engineers in a continuous build environment Familiarity with CI/CD tools such as AWS pipelines, Github actions Understanding of cloud architecture principles preferably AWS and/or GCP Data Testing experience - Ability to understand data requirements and perform comprehensive data testing Understanding of data engineering Excellent PyTest and SQL skills Nice to have: Behave BDD experience We expect you to have some knowledge about best practices in designing and building scalable and performant cloud-native data platforms and be comfortable with testing them. Our promise to you We will always see you as a human being and will do our very best to support your needs and wellbeing – well-designed co-working and collaboration spaces, remote working patterns that work for you, parenting leave, sabbaticals and ability to work on personal projects. We believe that a geled team is worth its weight in gold – we will do everything we can to avoid breaking well-performing teams. Whilst continuity across every project is not always possible, we thoughtfully assemble high-performing, blended teams with the appropriate levels of exper

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. What’s the role? Job Title: CX Apprentice - Data Reports to: CX Analytics and Performance Director Apprenticeship: Data Analyst Level 4 Duration: 12-18 months, subject to learner progress + End Point Assessment Role Purpose To support the Customer Service department in turning core operational data into clear, actionable insight — covering everything from divisional headcount and budgets through to CS performance metrics, carrier claims and returns — helping the business understand performance and identify where the customer experience can be improved. Key Responsibilities Support core CS operational performance reporting across the department, including divisional headcount, budgets and key performance metrics such as CSAT and APH. Collect, clean and validate data from multiple internal and external sources across CX/CS operations, including carrier claims, returns (e.g. ZigZag), post-dispatch communications and customer contact systems. Build and maintain dashboards and reports (e.g. Power BI) tracking department-wide CS metrics, from workforce and budget data to claims and returns performance. Write and run SQL queries to extract and manipulate data from relational databases in support of departmental reporting. Identify trends and patterns across headcount, budget, claims, returns and delivery data, flagging root causes and opportunities for improvement. Support CS leadership and wider teams with ad hoc analysis to inform decision-making, resourcing

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 Ecommerce Manager is a core part of the Ingenuity client services team, with end-to-end responsibility for ecommerce strategy and performance across a client account. This is a high-ownership role that bridges trading and marketing - using data and insight to drive growth across the full customer journey, from acquisition through to retention. You’ll manage budgets, drive the digital strategy and delivery, own the trading calendar, coordinate channel activity, and act as the key day-to-day contact for your client. You’ll be supported by channel specialists across SEO, PPC, Paid Social, CRM, Affiliates, and more - and you’ll be the glue that keeps strategy aligned across all of them. Key Responsibilities: Trading & Site Performance Own site performance metrics including conversion rate, AOV, COS, bounce rate, and new vs. returning traffic - using GA4 and THG’s proprietary reporting platform to surface insights and drive decisions. Build and manage the trading calendar, including promotional plans, key events, and seasonal campaigns. Monitor and respond to competitor pricing, product, and promotional activity to ensure clients remain competitive. Identify and execute site optimisation opportunities across product pages, landing pages, category navigation, and UX. Ensure the site is always up to date with correct offers, banners, new product listings, and promotional content. Marketing & Chan

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. Shift Engineer - £46,000 - £47,000 + Shift allowance £5,702 About the Role Your objective, through modern maintenance systems, will be to maintain business as usual for the plant operations, to continuously improve the availability/reliability of the equipment and to ensure we dispatch quality products safely. The shift engineer will provide a technical support resource to the Fulfilment operation, delivering optimum asset reliability and performance through an effective asset maintenance and Continuous Improvement approach. You will have a good understanding of modern maintenance techniques as well as good working operational knowledge of a Fulfilment site. You should also be capable of ensuring a quick and effective reaction to daily business needs as they are presented. Responsibilities: Technical support resource for maintenance across plant to ensure a safe, timely and effective close out of live plant issues. Proactive fault prevention and continuous improvement activities to deliver key maintenance KPIs Work on and assist with developing the Plant PPM program, while using your RCA skills in response to Reactive tasks, to move the department towards a predictive Maintenance culture. Complete root cause analysis reports on major engineering stoppages across site. Support the close out of health and safety, Quality and CI actions lists. Reliability focused using modern techniques such as TPM, RCA, RCM and FMEA. Coaching and supporting

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. Overview We are seeking a commercially minded Senior Financial Controller to join a unique role spanning both THG Ingenuity and a private Family Office portfolio. This role is the finance lead for King Street Townhouse Hotel and Hale Country Club, whilst helping develop the governance, reporting and financial capability of a growing Family Office portfolio Reporting into senior leadership, the successful candidate will lead a small finance team and act as a trusted business partner to operational management, providing insight, challenge and financial leadership across multiple businesses. This role offers a rare combination of hospitality, commercial finance and family office exposure, making it an ideal opportunity for an ambitious Financial Controller looking to broaden their experience beyond a traditional finance environment. Key Responsibilities Hospitality Finance Leadership Lead all aspects of finance for King Street Townhouse Hotel and Hale Country Club & Spa, including: Monthly management accounts and performance reporting Budgeting, forecasting and long-term planning Board reporting and financial commentary Cash flow forecasting and working capital management KPI reporting and analysis Capex appraisals and investment analysis Balance sheet oversight and control environment Annual audit support and statutory reporting VAT and tax complia

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. Role summary This role is responsible for making sure customers can pay successfully and that the business is not losing revenue through avoidable payment failures. This role will identify issues, bring the right teams together and ensure that changes are implemented and measured. Role purpose Will be responsible for ensuring that all payment methods, payment providers and checkout journeys operate to an optimal standard across the business. The role will monitor payment acceptance, identify performance issues and opportunities, and work with payment service providers, acquiring banks, technology teams, product teams and commercial stakeholders to improve successful payment completion and reduce avoidable customer friction. The successful candidate will take ownership of payment-performance reporting, incident escalation and optimisation activity, ensuring that issues are identified quickly, investigated thoroughly and converted into measurable improvements in revenue and customer experience. Key responsibilities Payment performance monitoring Monitor payment performance across cards, digital wallets, PayPal, BNPL and other alternative payment methods. Track authorisation, acceptance and completion rates by brand, market, payment method, provider, issuer, device and customer journey. Identify deterioration, unusual trends and performance gaps requiring investigation. Develop appropriate alerts and thresholds so material payment issues

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 Senior Ecommerce Manager is a senior commercial leadership role, responsible for setting and delivering the ecommerce trading, inventory and marketing strategy across a client account or vertical. This role goes beyond front-end ecommerce performance. You will take commercial ownership of how stock, product mix, margin, marketing investment and customer demand come together to drive sustainable growth. You will lead the development of trading strategies aligned to buying cycles, product launches and inventory plans, ensuring that merchandising, marketing and operational teams are working towards a unified commercial objective. You’ll be responsible for understanding and influencing stock health, sell-through, stock cover, margin performance and product lifecycle, using this insight to shape promotional strategy, visual merchandising, marketing investment and customer acquisition activity. Acting as the bridge between the Ecommerce Manager layer and the Head of Ecommerce, you will provide strategic direction to your team while leading senior stakeholders across buying, merchandising, finance, marketing and operations. You will own the commercial narrative for your accounts and have the confidence to challenge decisions where stock, margin or customer demand are not aligned. Key Responsibilities: Strategic Trading, Inventory & Commercial Performance Own the overall ecommerce trading strategy for your accounts, with responsibility for revenue, conversion, AOV, COS, ROAS, ma

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. The Role We are seeking a talented and commercially astute Data Scientist to join our dynamic team tackling Fraud, Payments and Finance. In this multi-focus role, you will be responsible for protecting our global e-commerce operations from fraud, optimising our payments performance and driving profitability and automation initiatives within Finance. Working with vast, complex datasets, the work will involve combatting online fraud using our award-winning THG Detect platform and driving payments optimisation by increasing authorisation rates, while also using the latest AI software and Google Cloud Platform (GCP) infrastructure to build complex data solutions and applications. This role requires a blend of strong technical skills, commercial acumen, and effective communication to translate complex data insights into tangible business value. Responsibilities: Optimise Fraud Detection: Continuously improve automated decision-making in our in-house THG Detect platform using machine learning and decision rules. Enhance Payment Performance: Lead data-driven initiatives to boost payment authorisation rates, optimise transaction routing, and reduce costs. Drive Profitability within Finance: Lead automation and profitability initiatives across different areas of Finance. Communicate Performance: Report on all aspects of fraud, payments and finance performance to stakeholders at all levels, including C-level management. Drive System Improvements: Collaborate with Fraud, Payments, F

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. Assistant Financial Controller - Fulfilment Operations Role Overview We are seeking an Assistant Financial Controller/Management Accountant to support the financial performance of THG Ingenuity's fulfilment operations. This role plays a key part in operational costing, commercial analysis, forecasting, budgeting and business partnering across multiple fulfilment sites. The successful candidate will work closely with Site Leads, Operational Leadership and Commercial teams to provide financial insight, challenge assumptions, improve profitability and support strategic decision-making. The role will also support new client onboarding activities, ensuring operational requirements are understood and reflected within financial models and forecasts. Key Responsibilities Business partner fulfilment Site Leads, supporting and challenging financial and operational performance. Own weekly forecasting processes & operational reporting for a designated fulfilment site. Produce and analyse Cost Per Unit (CPU) reporting, identifying risks and opportunities to improve profitability. Deliver weekly and monthly variance analysis against forecast, budget and prior year. Support annual budgeting and periodic reforecasting activities. Support financial requirements for new client onboarding and implementation projects. Review labour, warehousing and operational cost performance, driving accountability across sites. Assist with month-end activities, reporting and financial controls. Identify opportunities t

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 Senior Ecommerce Manager is a blended leadership role, combining trading expertise with marketing channel strategy to drive holistic ecommerce performance across a client account or vertical. You will be the primary commercial and strategic owner for your accounts – taking full accountability for both site trading performance and the quality of marketing execution across all digital channels. You'll define what success looks like for your accounts, build the plans to get there, and lead your team through delivery. You'll own the performance and strategic narrative, drive trading and marketing strategy, and bring the commercial judgement to know when to hold course and when to change it - while staying close enough to execution to maintain standards and momentum. Acting as the bridge between the Ecommerce Manager layer and the Head of Ecommerce, this is a senior individual contributor role with team management responsibilities. You’ll bring equal capability across trading (conversion, AOV, promotional planning) and marketing (paid and organic channel strategy), using data and insight to continuously push performance forward. Key Responsibilities: Trading & Site Performance Lead the trading strategy for your accounts, with ownership of KPIs including revenue, conversion rate, AOV, COS, and ROAS. Oversee and drive the promotional calendar for key events, seasonal campaigns, and brand activations - sharing insight across channels for joined-up planning.

About the Team OpenAI's Training team is responsible for producing the large language models that power our research, our products, and ultimately bring us closer to AGI. Achieving this goal requires combining deep research into improving our current architecture and optimization techniques, alongside long-term bets aimed at improving the efficiency and capability of future generations of models. We are responsible for integrating these techniques and producing model artifacts used by the rest of the company, and ensuring that these models are world-class in every respect. About the Role As a member of the training team, you will push the frontier of LLM development for OpenAI's flagship models, enhancing intelligence, efficiency, and adding new capabilities. Relevant interests may include areas such as architecture design, long-context and efficient attention, optimization and the science of scaling. Ideal candidates have a deep understanding of LLM architectures, a sophisticated understanding of model inference, and a hands-on empirical approach. A good fit for this role will be equally happy coming up with a creative breakthrough, investing in strengthening a baseline, designing an eval, debugging a thorny regression, or tracking down a bottleneck. This role is based in London. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees. In this role, you will: Design, prototype and scale up new architectures to improve model intelligence Execute and analyze experiments autonomously and collaboratively Study, debug, and optimize both model performance and computational performance Contribute to training and inference infrastructure You might thrive in this role if you: Have experience landing contributions to major LLM training runs Can thoroughly evaluate and improve deep learning architectures in a self-directed fashion Are motivated by safely deploying LLMs in the real world Are well-versed in the state of the a

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. The role We're looking for an ambitious, detail-oriented CRM professional to join the team and lead the delivery of CRM campaigns across our portfolio of brands. This is an excellent opportunity for someone looking to build a career in digital marketing, ecommerce and CRM within a fast-paced, high-growth environment. Success in this role requires strong attention to detail, commercial awareness, a data-driven mindset and the ability to build positive relationships with both internal and external stakeholders. You will be responsible for: The day-to-day management of CRM Campaigns and key performance metrics Working with and mentoring our Email Executive team to deliver a world class CRM experience for our clients To manage and deliver CRM programmes to retain customers across all stages of the lifecycle To co-ordinate the delivery of the consumer communications plan, including creative execution, customer selection, test activity and results in order to drive the required sales plan Maintaining and leading relationships with our established clients and have responsibility in the production and assistance of weekly, monthly and quarterly reports, as well as highlighting any key insight or trends Training, development and management of the team to deliver their objectives with the support of the CRM Manager You’ll have the full support of an excellent in-house creative team, allowing you to focus around the creative elements of the email campaigns and really bring the marketing mate

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: An exciting opportunity for a commercially driven Ecommerce Manager with strong experience across ecommerce trading, inventory, visual merchandising, buying and digital marketing. The Ecommerce Manager is a core part of the Ingenuity client services team, with end-to-end responsibility for ecommerce trading, commercial performance and execution across a client account. This is a high-ownership role that sits at the intersection of ecommerce trading, buying, merchandising, inventory and marketing . You’ll use data and commercial insight to make decisions that maximise sales and margin, ensuring the right products are presented to customers at the right time, supported by the right marketing activity and aligned to stock availability. You’ll own the trading calendar, translate buying and product strategy into compelling on-site visual merchandising, monitor inventory and sell-through, coordinate marketing activity across multiple channels, and identify opportunities to maximise margin while reducing aged stock and returns. You’ll work closely with buying, category, merchandising, operations, creative and channel specialists, acting as the key point of coordination to ensure commercial priorities are reflected consistently across the customer journey. Key Responsibilities: Trading, Inventory & Site Performance Own ecommerce trading performance across conversion, AOV, COS, margin, sell-through, stock cover, availability and new vs. returning customer performance. Build an

About Graphcore Graphcore is 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, Graphcore is a member of an elite family of companies responsible for some of the world’s most transformative technologies. Together, they share a bold vision: to enable Artificial Super Intelligence and ensure its benefits are accessible to everyone. Graphcore’s teams are drawn from diverse backgrounds and bring a broad range of skills and perspectives. A melting pot of AI research specialists, silicon designers, software engineers and systems architects, Graphcore enjoys a culture of continuous learning and constant innovation. Summary Join our dynamic Software Infrastructure team and take a pivotal role in scaling and managing our infrastructure. You will develop essential tools and services that empower our broader software team. Your contributions will enhance the build, test, deployment, and productisation processes of our Machine Learning Software components. Work with our High-Performance Computing (HPC) AI platforms and gain invaluable experience in distributed system The Team The Software Infrastructure team provides critical platforms and services for software development teams across the business. Our responsibilities include managing the CI platform and services, build engineering, component integration, and packaging and release systems. We operate in squads, fostering a culture of service ownership and empowerment for our engineers. We focus on long-term engineering solutions and strive to eliminate toil wherever possible. Responsibilities and Duties Develop, own, and maintain tools and services to support the software org