Lead AI & Software Engineer

About Checkout.com Checkout.com provides advanced payment solutions to businesses worldwide. Our platform supports online transactions for companies like eBay, ASOS, Klarna, Uber Eats, and Sony. We focus on making digital payments seamless so clients can grow their businesses while we manage the technical complexity. Headquartered in London, Checkout.com operates from 19 offices across six continents. Our teams work together to drive innovation in fintech and deliver results in a performance-oriented setting. Role Overview: Software Engineer – AI Centre of Excellence The AI Centre of Excellence at Checkout.com is looking for a Software Engineer with a strong interest in AI-driven product development. This role suits someone who enjoys building new solutions and collaborating with others to solve complex challenges. What You Will Do Develop and iterate on Generative AI solutions to support teams across the company’s product portfolio. Work closely with cross-functional groups to design AI features that improve product performance and streamline business processes. Apply customer-focused thinking to every stage of solution design and implementation. Use coding agents and other AI tools to enhance the impact of your work. Who We’re Looking For Experience building or refining AI solutions, ideally in a collaborative engineering environment. Comfort working on projects that span multiple teams and functions. An interest in fintech and a drive to improve how businesses use technology. This position is based in London.

About Checkout.com Checkout.com supports online payments for global brands including eBay, ASOS, Klarna, Uber Eats, and Sony. The company’s technology handles billions of transactions worldwide, helping businesses grow and customers pay easily and securely. Headquartered in London with 19 offices worldwide, Checkout.com brings together a diverse team focused on fintech. The company values continuous improvement and innovation, offering each team member a chance to influence the future of digital payments. Role Overview: Senior Software Engineer in AI Excellence The Senior Software Engineer will join Checkout.com’s AI Centre of Excellence in London. The role centers on integrating advanced Generative AI technologies into products and internal processes. This engineer will collaborate with teams across the company to design and build AI-driven solutions that improve both product features and business operations. Main Responsibilities Lead the adoption and integration of Generative AI technologies across Checkout.com’s platforms Mentor engineers and share knowledge to strengthen the team’s AI capabilities Establish and promote engineering best practices within the AI Centre of Excellence Work with cross-functional teams to identify opportunities for AI-driven improvements Help shape and execute the company’s AI strategy Location This position is based in London. Learn More For details about the company, visit Checkout.com.

Join our dynamic team at Jane Street as a Data Centre Engineer in London! In this role, you will be pivotal in ensuring the smooth operation, maintenance, and optimization of our data centre facilities. You will work closely with various teams to implement innovative infrastructure solutions that enhance performance and reliability.

At Coram AI, we are revolutionizing video security in today's digital landscape. Our innovative cloud-native platform leverages cutting-edge computer vision and artificial intelligence to empower businesses with enhanced safety, informed decision-making, and rapid response capabilities. Experience real-time alerts, effortless clip sharing, and comprehensive visibility across multiple sites.Joining our dynamic, agile team means embracing clarity, excellence, and impactful contributions. Every team member has a voice, delivers significant work, and plays a vital role in shaping how AI can foster a safer and more interconnected world.In this role, you will be part of a pioneering team responsible for managing a sophisticated infrastructure that transcends conventional cloud setups. Beyond our robust AWS and Kubernetes configurations, we also oversee a vast array of IoT devices. We are in search of a skilled engineer who will play a crucial role in developing and maintaining our edge and cloud stack that supports our IoT product offerings, focusing on both infrastructure and the bespoke software we utilize.You will tackle intriguing challenges at the confluence of user experience, machine learning, and infrastructure, while committing to excellence, continuous learning, and delivering exceptional products in a fast-paced startup environment.

Join Version 1 as an AI Software Engineer and be at the forefront of innovation in artificial intelligence. In this full-time role, you will work with cutting-edge technologies to develop AI-driven software solutions that enhance business operations and customer experiences.As a key member of our Digital, Data and Cloud department, you will collaborate with cross-functional teams to design, implement, and optimize AI algorithms and models. Your contributions will help shape the future of our products and services.

About UsAt Tracer, we are pioneering the development of autonomous AI agents designed specifically for production data pipelines. As an early-stage, venture-backed startup, we are supported by seasoned professionals and investors who foresee AI's transformative impact on enterprise software over the coming decade. Our tight-knit team is comprised of senior experts who are keenly focused on execution and innovation. About the RoleWe are seeking a Lead AI Software Engineer to join our London team, responsible for creating and managing the core systems that convert production alerts into actionable root cause analyses (RCAs) and corrective suggestions. While the agent handles the heavy lifting, you will ensure that human oversight remains integral to production decisions.In this role, you will serve as the primary technical authority for our systems, collaborating closely with the founders and engaging in hands-on development. You’ll Love Our Tech StackPython + LangGraph (for multi-agentic alert investigation)Rust (to ensure speed and correctness)ClickHouse (to manage high-volume events and investigation histories)AWS + Terraform (for self-building infrastructure)Next.js + TypeScript (for dynamic front-end experiences) What You’ll DoIn this pivotal role, you will oversee the systems that transform alerts into thorough investigations and RCAs. Your responsibilities will include:Designing and building the core alert, investigation, and RCA pipeline using PythonCrafting and implementing essential systems, such as:Alert ingestion and normalizationContext enrichment and correlationProblem framing outputsHypothesis orchestration engineInvestigation execution runtimeInvestigation artifacts and reportingLeading crucial architectural decisions to ensure the system is observable, auditable, and reliable from day oneCollaborating with founders to effectively deploy a select few high-value alert types before gradually expanding our capabilitiesDeveloping customer-ready integrations throughout the pipeline

Join PhysicsX as a Senior Software Engineer specializing in our AI Workbench. In this pivotal role, you will lead the development of cutting-edge artificial intelligence solutions that empower our clients to harness the full potential of data and analytics. Your expertise will contribute to the design and implementation of scalable software architectures, ensuring robust performance and reliability. You will collaborate with cross-functional teams to define project requirements and engage in hands-on coding, code reviews, and mentoring junior engineers. If you are passionate about AI and eager to push the boundaries of technology, we want to hear from you!

Join Figma as a Software Engineer focused on developing cutting-edge AI products. In this role, you will be part of a dynamic team that drives innovation and enhances user experiences through artificial intelligence. You will collaborate with product managers and designers to build sophisticated features that empower users to create and collaborate seamlessly.

About WatershedWatershed is a premier enterprise sustainability platform utilized by leading organizations such as Airbnb, Carlyle Group, FedEx, Visa, and Dr. Martens. Our platform enables companies to effectively manage climate and ESG data, generate audit-ready metrics for both voluntary and regulatory reporting including CSRD, and facilitate substantial decarbonization efforts. We seek passionate individuals who are enthusiastic about product development, eager to contribute to a mission-driven startup, and willing to collaborate in shaping a vibrant team culture.With offices in San Francisco, New York, Denver, London, Paris, Berlin, Sydney, Mexico City, and a robust remote workforce across the US and Europe, we invite you to explore the opportunity to join our dynamic team!The RoleWe are on the lookout for a talented software engineer with a specialization in AI to become a key member of our sustainability AI reporting team. In this technical leadership role, you will assist in the creation of a cutting-edge AI tool that empowers companies to manage and report their sustainability progress. You will harness LLMs, embeddings, and various AI technologies to deliver innovative features to our customers while establishing the technical groundwork for AI at Watershed.This position requires being based in our London HQ four days a week.Your Responsibilities:Prototype, develop, and refine new product features for Watershed, empowering our customers with advanced AI tools for data extraction and report generation.Productionize and launch core technologies necessary for AI functionalities, leveraging extensive operational sustainability data.Engage with product and other AI engineering teams to define product and technical strategy.Stay informed about advancements and state-of-the-art developments in AI to assess relevance for Watershed.Write efficient, high-quality, tested, and maintainable code across our technical stack.Ideal Candidates Will Have:A minimum of 2 years of experience in building AI-powered products and 5+ years in software engineering.Proven experience in developing products utilizing LLMs, embeddings, and other machine learning technologies.Comprehensive experience with the lifecycle of building, deploying, and monitoring products that leverage LLMs, embeddings, or other machine learning technologies.

Begin your journey with us. Advance your career here.AECOM is looking for a Senior Civil Engineer to play a key role in delivering civil engineering designs and comprehensive technical documentation for a variety of data centre projects. Your involvement will span from site due diligence assessments and master planning to detailed design and construction support. This position is essential in enhancing AECOM’s civil engineering capabilities within the data centre sector.In this role, you will be part of a Civil Engineering Business Unit, working in collaboration with ground engineers, structural engineers, mechanical engineers, electrical engineers, architects, project managers, environmental specialists, and surveyors both in the UK and internationally to support our diverse portfolio of data centre projects.As part of the Data Centres Market Sector, you will leverage your civil engineering expertise to contribute to significant projects for leading technology clients, collaborating with multidisciplinary teams across the UK and globally, further solidifying AECOM’s reputation in the Hyperscale and Co-location data centre markets.Your responsibilities will include:Providing civil engineering expertise for data centre initiatives while ensuring adherence to AECOM standards and applicable regulatory requirements.Delivering and reviewing designs and specifications for civil infrastructure, developing practical solutions for site development, earthworks, drainage, pavements, access, utility infrastructure, and other civil engineering tasks related to data centres.Coordinating with fellow civil engineers and technical experts to support the successful delivery of our data centre project portfolio, including collaboration with ground engineers, electrical engineers, mechanical engineers, structural engineers, project managers, architects, and environmental consultants across the UK and our global offices.Mentoring and assisting in the development of junior engineers, enhancing AECOM’s technical capabilities and delivery excellence within the Data Centres sector.Join us and thrive:At AECOM, we offer a comprehensive range of core and personalized benefits that support your well-being and future goals, tailored to fit your lifestyle. Enjoy career development opportunities, a flexible hybrid working model for a balanced work-life, access to technical practice networks, AECOM University, and volunteering days.

Join the innovative team at PhysicsX as a Software Engineer specializing in AI Workbench. In this pivotal role, you will leverage your expertise to develop cutting-edge AI solutions that push the boundaries of technology and enhance user experience. This is an exciting opportunity to work at the forefront of AI development and contribute to transformative projects that have a real-world impact.

About HomeyHomey is revolutionizing the notoriously slow and stressful process of moving home in the UK. As an established yet fast-growing company, we leverage cutting-edge technology to make property transactions quicker, more transparent, and efficient for all parties involved.Discover more at Homey.co.uk.The RoleWe are not seeking years of legacy experience; instead, we are in search of smart, adaptable, and ambitious engineers. Whether you are a recent graduate, a school leaver, or just starting your coding journey, we want to hear from you.At Homey, we value the ability to rapidly build solutions over memorizing every syntax rule. We are interested in "AI-Native" engineers—those who utilize LLMs, such as Claude Code, Grok, or GitHub Copilot, to enhance their coding capabilities and deliver high-quality code swiftly.ResponsibilitiesBuild & Iterate: Develop and enhance features that significantly influence the home buying and selling process.Leverage AI: Harness modern AI coding tools and LLMs to streamline your workflow, troubleshoot complex issues, and innovate new solutions.Problem Solve: Adopt a proactive approach to tasks from day one, demonstrating a "can-do" attitude—if you face a challenge, you will seek out the solution.Collaborate: Engage closely with a dynamic team that appreciates fresh perspectives and creative problem-solving.Who You AreEarly Career: You are a recent graduate, school leaver, or junior developer eager to grow.Tech Enthusiast: You actively use AI tools like Claude Code, Grok, or Cursorto enhance your projects.High Energy: You possess a "can-do" mindset where every task is important, and no challenge is insurmountable.Curious: You have a keen interest in how technology can transform traditional industries like real estate.BenefitsJoin an established company with the innovative spirit of a startup.Receive mentorship from experienced founders who embrace modern development practices.Contribute to solving a real-world problem affecting millions.Are you ready to shape the future of property transactions? Apply now with a link to your GitHub, a project you’ve developed using AI, or a brief note on why you are the ideal candidate for Homey.

Join hyperexponential as a Lead Software EngineerAt hyperexponential, we are at the forefront of innovation, creating a groundbreaking AI-powered platform that transforms decision-making in the $7 trillion insurance industry. Our technology influences vital outcomes, from the successful launch of rockets into space to the efficient deployment of autonomous vehicles and the swift recovery of communities after disasters.For too long, insurers have relied on outdated tools to make multi-billion dollar decisions. We are revolutionizing this landscape. Our platform seamlessly integrates data, AI, and expertise, providing insurers with a rapid pathway from submission to decision, empowering them to act with agility, intelligence, and confidence.With backing from esteemed investors like a16z, Highland Europe, and Battery Ventures, we are expanding our global footprint and have earned the trust of nearly 50 of the world’s largest insurers, boasting zero churn and billions in premiums flowing through our platform.What began as a singular product in one market has swiftly evolved into a comprehensive, multi-product platform that supports every aspect of pricing and underwriting. AI is embedded in our core operations, from developing the world’s first domain-specific AI peer programmer for insurance to innovating workflows that redefine industry standards.At hyperexponential, our strength lies in our people. Here, your impact is not determined by your title or tenure, but by the challenges you embrace and the discipline you exemplify. Surrounded by a team that pushes boundaries, you will engage in the most meaningful work of your career in an environment built to thrive.If this resonates with you, we invite you to join us in shaping the future.About the hxAI TeamAt hx, AI is not an accessory; it is integral to our mission. We are transforming the insurance software landscape through generative AI. Our team merges advanced LLM technology with deep industry knowledge to tackle challenges that others overlook.Currently, we are focused on two flagship products: a powerful ingestion engine that converts unstructured insurance documents into actionable insights, and our flagship offering, an AI peer-programmer embedded in a custom IDE, revolutionizing how actuaries and underwriters model risk and make critical financial decisions.This is applied AI that delivers tangible results. As a Lead Software Engineer, you will be part of an agile, high-ownership team that drives innovation and directly influences how AI reshapes the industry.

Role Overview The Trade Desk is hiring a Staff Software Engineer to help build advanced AI solutions. This London-based role centers on designing and implementing software systems that support and improve AI-driven products. What You Will Do Design and implement software systems for AI applications Work closely with teams across disciplines to expand product capabilities Support integration of new technologies into existing products Collaboration This role involves frequent collaboration with cross-functional teams to ensure AI systems are effective and integrate smoothly with other offerings.

About LendableLendable is dedicated to creating cutting-edge technology that empowers individuals to secure credit and save money effectively. As one of the UK’s newest unicorns, our dynamic team of over 700 is driving growth in the fintech sector:Recognized as one of the fastest-growing tech companies in the UK.Achieved profitability since 2017.Supported by prominent investors, including Balderton Capital and Goldman Sachs.Highly rated by customers, boasting an impressive 4.9 rating across thousands of reviews on Trustpilot.To date, we have reimagined three major consumer finance products: loans, credit cards, and car finance. Our commitment is to deliver funds to our customers within minutes, rather than days.As we expand, we are targeting the two largest Western markets (the UK and US), where vast amounts of financial products are still managed by traditional banks with outdated systems and cumbersome processes.Join Us If You Want ToTake ownership of a broad scope of responsibilities, making impactful decisions that shape the future of Lendable from day one.Collaborate with a small team of exceptional individuals who are resourceful and innovative in solving problems and challenging the status quo.Develop top-tier technology in-house, utilizing new data sources, machine learning, and AI to automate and optimize processes.About the RoleWe are seeking a proactive AI Engineer to join our Internal Automation team at Lendable, aimed at enhancing operational efficiency across the organization.Your mission will be to empower internal teams—from Finance and Compliance to Product and QA—by creating AI-driven tools, integrations, and automated workflows. You will work closely with a compact team (4 engineers, 1 PM) focused on reducing friction, automating monotonous tasks, and allowing colleagues to dedicate more time to high-value activities.

Begin your journey here. Advance your career with us.AECOM seeks an experienced Principal Civil Engineer to lead technical initiatives across a variety of projects for data center clients. These projects encompass site due diligence assessments, master planning, detailed design, and construction support. This role is pivotal in fostering business growth, enhancing client relations, and advancing AECOM's civil engineering capabilities within the data center sector.As part of our Civil Engineering Business Unit, you will collaborate with a diverse team of professionals, including ground engineers, structural engineers, mechanical engineers, electrical engineers, architects, project managers, environmental specialists, and surveyors, both locally and globally, to support our extensive portfolio of data center projects.In the Data Centres Market Sector, you will represent AECOM as a knowledgeable ambassador, delivering expert civil engineering counsel throughout EMEA and in conjunction with global teams. Your contributions will ensure the successful execution of data center projects for major technology clients, emphasizing technical excellence, resilience, and cross-disciplinary integration while reinforcing AECOM's standing in the Hyperscale and Co-location data center market.Your responsibilities will include:Providing strategic civil engineering leadership and technical governance for data center projects, ensuring adherence to AECOM standards and regulatory requirements.Leading, reviewing, and approving civil engineering infrastructure designs and specifications, creating viable solutions for site development, earthworks, drainage, pavements, access, utility infrastructure, and civil engineering works related to data centers.Coordinating with fellow civil engineers and technical experts to ensure the successful delivery of our data center project portfolio, collaborating with ground engineers, electrical engineers, mechanical engineers, structural engineers, project managers, architects, and environmental consultants across the UK and internationally.Enhancing client engagement, driving business development, strategic asset planning, and sector thought leadership, while mentoring and developing civil engineers to improve technical capabilities and delivery excellence within the Data Centres sector.Join us and thrive:At AECOM, we value our employees and offer a variety of core and personalized benefits tailored to support your future and well-being. Enjoy career development opportunities, a flexible hybrid working model to achieve work-life balance, access to technical practice networks, AECOM University, and opportunities for volunteering.

At Elliptic, we are pioneering the development of AI-driven tools that empower compliance teams to swiftly and confidently investigate cryptocurrency transactions. Our Automation Forge team is at the forefront of this innovation, crafting backend systems and AI integrations that support Elliptic's copilot, enabling investigators to track fund flows, identify trends, and manage risk in real-time.We are seeking a dedicated Backend Software Engineer to join our team and contribute to the design and implementation of APIs, workflows, and services that facilitate these capabilities.Your Impact:As a Software Engineer within the Automation Forge team, you will play a key role in designing and delivering robust, scalable services that underpin Elliptic’s copilot and other AI-enhanced functionalities.Collaborating with product managers, frontend engineers, and your technical lead, you will transform complex blockchain data into intuitive, user-centric solutions that assist compliance teams in tracing fund flows, revealing intricate patterns, and responding to risks with agility and assurance.By working collaboratively across various disciplines, you will contribute to the development of impactful features while consistently enhancing the quality, reliability, and usability of our platform. Your efforts will be instrumental in advancing Elliptic’s mission to create safer, more transparent, and efficient cryptocurrency markets.Your Responsibilities:Design, develop, and maintain backend services and event-driven systems utilizing TypeScript and Node.js.Build APIs and workflows that seamlessly integrate AI and LLM frameworks to enhance Elliptic's copilot and other intelligent features.Optimize and query data models across both relational and NoSQL databases.Work alongside cross-functional teams to bring features from concept to production.Participate in technical design reviews, planning sessions, and code reviews to continually enhance system quality.Contribute to infrastructure and observability practices within the team, ensuring shared responsibility for the performance of services in production.Your Qualifications:3–6 years of backend engineering experience specifically with TypeScript / Node.js.Strong API design expertise — you have developed and maintained production APIs and understand how to interface with external systems.Proficiency in data modeling — comfortable designing, optimizing, and querying data across various databases.Excellent collaboration skills — able to work effectively with diverse teams and communicate technical concepts clearly.

Role Overview Writer is hiring a Senior Software Engineer to help build and improve our Enterprise AI Platform. Based in London, this role centers on designing and developing software that supports efficiency and better user experiences for a range of clients. What You Will Do Develop and maintain software for our Enterprise AI Platform Work with cross-functional teams to deliver reliable and scalable solutions Contribute ideas and technical expertise to shape the direction of AI products at Writer Collaboration This position works closely with engineers, product managers, and other teams to ensure our software meets client needs and quality standards. Your input will help guide the evolution of AI tools within the company.

Role Overview AECOM is hiring a Principal Mechanical Engineer with a focus on data centres in London. This senior position shapes the design and operation of advanced data centre facilities. What You Will Do Lead technical projects for data centre mechanical systems Guide and mentor junior engineers Work closely with multidisciplinary teams to deliver efficient, sustainable solutions Drive high standards for performance and reliability in data centre design