Senior Software Engineer - Data & AI Security

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.

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.

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!

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.

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.

Join an innovative team at FE fundinfo as a Senior Software Engineer specializing in AI Solutions. In this pivotal role, you will design, develop, and deploy production-ready AI systems that drive data-heavy financial products for our global clientele. Leverage state-of-the-art LLM capabilities to create scalable and reliable services that truly make a difference.Be at the forefront of AI solutions by building end-to-end systems on cutting-edge platforms such as Databricks, Spark, and Delta Lake. You will play a crucial role in shaping our internal AI platform, collaborating across software engineering, data engineering, and platform architecture domains. Your mission will involve integrating LLMs into tangible products while ensuring data quality, traceability, and explainability are prioritized. Work closely with cross-functional teams to solve complex challenges in a regulated financial context, while continuously enhancing your skills in a supportive engineering culture.

Welcome to PMGFor 11 consecutive years, PMG has been recognized by Ad Age as one of the Best Places to Work and was named a Best Workplace for Innovators by Fast Company in 2022. As a leading independent marketing services and technology firm, we empower individuals and brands to realize their full potential. Our commitment to collective success allows us to harness a blend of business strategy, creative innovation, media expertise, and insightful analytics, alongside our proprietary platform, Alli, to deliver state-of-the-art digital solutions and media strategies.Our global team of over 900 professionals collaborates on transformative projects for renowned brands such as Apple, Nike, Sephora, and Whole Foods, impacting audiences in over 85 countries.Collaborative Team EnvironmentAs the Senior Manager of AI & Software Engineering, you will play a pivotal role within our Alli platform team, which focuses on developing organizational tools to manage multimillion-dollar budgets and foster seamless collaboration across integrated global teams, supporting some of the most iconic brands worldwide.You will partner with engineers, product managers, and designers who are passionate about solving complex challenges and creating innovative solutions. Together, you will utilize AI-driven tools and advanced technology to redefine digital marketing strategies. Our team is committed to not just ideation but also to executing these ideas, generating tangible results for our clients and the broader industry.In our dynamic and collaborative environment, creativity and innovation flourish. You will help shape the technical vision and roadmap, addressing intricate challenges like data integration, AI automation, and scalable system architecture. This role offers a chance to lead with intention, motivate your team, and contribute to a product that is redefining the future of digital marketing.Your ResponsibilitiesDefine and oversee a multi-year product roadmap in partnership with Product Managers and Designers to develop transformative products.Lead high-impact innovative projects that significantly influence the media and advertising landscape.Implement complex data integrations using APIs and conventional methods.Design and manage scalable technical solutions that prioritize architectural excellence and high performance.Conduct code reviews, mentor junior engineers, and provide constructive feedback to enhance team capabilities.

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 our dynamic team as a Senior Software Engineer at Faculty, where innovation meets technology. In this pivotal role, you will be responsible for designing, developing, and maintaining cutting-edge software solutions that drive our projects forward. We're looking for a passionate engineer who thrives in a collaborative environment and is eager to tackle complex challenges.Your expertise will guide our team in implementing best practices in software development, ensuring high-quality code and optimal performance. You will work closely with cross-functional teams to deliver impactful products that enhance our customers’ experiences.

Join Axon and become a Force for Good.At Axon, we are dedicated to Protecting Life. Our mission drives us to tackle society's most pressing safety and justice challenges through our innovative ecosystem of devices and cloud-based software. We believe in collaboration, openness, and the value of diverse perspectives from our customers, communities, and each other.Life at Axon is dynamic, demanding, and impactful. Here, you will take ownership of your work and instigate tangible change. Experience continuous growth while contributing to a mission that truly matters, at a company that values your contributions.Your ImpactThis position is ideal for innovators who thrive in a startup-like environment. In Axon's Global Artificial Intelligence division, you will develop a groundbreaking product with a small, dedicated team, aiming to deliver something unprecedented to the market swiftly.As a Senior Software Engineer I, you will spearhead critical aspects of the product from conception to launch. You will make informed architectural decisions, maintain high quality while accelerating development, and assist the team in transforming prototypes into a scalable solution.This role is fundamentally AI-driven: AI will be integral to your delivery approach, not merely an addition.What You’ll DoOversee the development of significant product features and services; manage end-to-end ownership from design through to operations.Clarify product direction amidst uncertainty: articulate the problem, define MVP scope, establish success metrics, and ensure stakeholder alignment on project completion criteria.Create and deploy software using AI methodologies across the Software Development Life Cycle (SDLC), with thorough validation practices to ensure accuracy and quality.Utilize engineering metrics (lead time, PR throughput, defect rates, test coverage, incident load) to assess and enhance delivery outcomes, refining team shipping processes.Make architectural choices that effectively balance speed and scalability, recognizing when temporary solutions become permanent.Implement and uphold engineering best practices that enhance productivity (testing strategies, CI/CD, observability, and sensible release methodologies).Collaborate closely with Product and Design teams (and function effectively in their absence) to prioritize, sequence, and deliver the highest-value increments.Mentor fellow engineers while fostering a culture of trust and ownership.

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

About H:At H, we are at the forefront of revolutionizing superintelligence through agentic AI. Our mission is to automate intricate, multi-step tasks that are traditionally handled by humans, thereby unlocking the full potential of human capability.We are actively recruiting top-tier AI professionals who are equally committed to advancing innovative agentic technologies as they are to ensuring safety and responsibility in their application. Our culture fosters openness, continuous learning, and collaboration, where every voice is valued.About the Team: Our Product Engineering team plays a pivotal role in developing H's Enterprise Platform, delivering essential tools and services that empower our customers to address critical operational challenges. This platform encompasses vital services such as executing computer-use agents at scale, orchestrating complex workflows, and providing a comprehensive suite for observability, troubleshooting, and evaluations. Our team serves as the bridge between cutting-edge AI research and practical, real-world applications, working in close partnership with every sector of our organization.Key Responsibilities:Architect, design, and steer the long-term engineering roadmap and technical blueprint.Create and sustain robust, high-performance, and scalable systems.Mentor and inspire engineers across diverse teams, promoting a culture of technical excellence.Perform comprehensive code and design reviews to uphold quality and security standards.Collaborate with Research, Product, and various stakeholders to deliver impactful and innovative solutions.Enhance system reliability, scalability, and observability continuously.Establish and implement engineering standards, tools, and processes for optimal efficiency.Promote technical innovation while proactively addressing any technical debt.Requirements:Technical Skills:Prior experience in a Senior Software Engineer role with a proven record of responsibilities and accomplishments.Over 5 years of strong experience in backend development (Python and Golang preferred).Extensive experience with distributed systems or cloud computing, ideally in AWS.Proficient in building and deploying end-to-end solutions.

Join Anthropic as a Senior Software Engineer specializing in Inference, where you will develop cutting-edge machine learning systems and inference algorithms. You will play a crucial role in enhancing our AI products and ensuring they are reliable and efficient.

Multiverse delivers upskilling programs in AI, data, and technology, partnering with more than 1,500 companies. Apprentices at Multiverse have generated over $2 billion in ROI for their employers. The company focuses on driving measurable productivity and performance improvements across industries. In June 2022, Multiverse raised $220 million in Series D funding, reaching a $1.7 billion valuation and becoming the UK’s first EdTech unicorn. With a team of over 800 employees, Multiverse continues to grow its impact in technology education. Role overview This Senior Software Engineer position is part of the Engineering team and supports Multiverse’s mission to prepare the workforce for an AI-driven future. The role influences technical direction and delivers solutions that reach thousands of learners and employers. What you will do Work in a domain-focused team to deepen understanding of Multiverse’s products and platforms. Design and build scalable, user-focused systems that integrate with the core learning platform. Contribute to a collaborative engineering culture, sharing knowledge and participating in weekly sessions. Use dedicated ‘10% time’ for experimentation and innovation, supporting ongoing improvement. Atlas at Multiverse Atlas is the flagship AI product, embedded in the main learning platform. It acts as a 24/7 AI guide, providing personalized, context-aware support to thousands of users daily. Atlas is central to Multiverse’s approach to AI-powered education. The Atlas team The Atlas team operates as an agile, fast-growing group within Multiverse. Engineers here help define technical strategy, architecture, and operational practices. The team values engineering excellence, rapid innovation, and building sustainable systems for the future of AI in education.

At Complexio, our innovative Foundational AI technology automates business processes by effectively analyzing both structured and unstructured data from across the organization. By employing proprietary algorithms and models, we gain profound insights into human interaction with data, enabling us to replicate and enhance these actions autonomously.Complexio is a collaborative venture involving Hafnia, Símbolo, and partners such as Marfin Management, C Transport Maritime, Trans Sea Transport, and BW Epic Kosan.As a Senior Software Engineer, you will play a pivotal role in our team, crafting cutting-edge applications that harness AI to improve user experiences and optimize communication. Collaborating with a diverse group of Data Scientists, DevOps specialists, Product Managers, and Business Analysts, you will significantly contribute to the design and implementation of specialized AI assistant technologies.

Join our innovative team at unlikelyai as a Senior Software Engineer, where you will have the opportunity to develop cutting-edge solutions that push the boundaries of artificial intelligence. In this role, you will collaborate with a talented group of professionals, leveraging your expertise to optimize our software development processes and deliver high-quality products.

Join Peregrine Technologies, a forward-thinking company backed by top Silicon Valley investors, as we empower public safety organizations, government agencies, and the private sector to tackle societal challenges with groundbreaking speed and precision. Our AI-driven platform transforms isolated data into actionable intelligence, enabling swift, informed decisions that enhance outcomes at every touchpoint. With a client base spanning over 30 states and two countries, serving more than 125 million people, we are on an exciting trajectory of growth into enterprise and international markets.TeamOur engineering team prioritizes empathy as the key to developing effective solutions. Understanding user interactions with our product is crucial to achieving the best outcomes. As a part of our Foundations team, you will collaborate with detail-oriented engineers focused on driving innovation and enhancing performance through technical excellence. We are responsible for maintaining the performance of our mission-critical infrastructure and spearheading high-stakes initiatives that unlock unprecedented capabilities.We emphasize both ownership and teamwork; you will have full accountability for major features while working closely with fellow engineers to see them through to completion. We believe that humility and empathy are vital for developing the right solutions, and you will engage directly with our deployment team and users to iterate and resolve their challenges. Creativity and perseverance are essential as we strive to execute our vision.RoleAs our first Software Engineer in the UK, you will have significant ownership across our technology stack, making impactful decisions that will shape our future for years to come. You will redefine the capabilities of our data platform by developing innovative features that enhance user experiences and operational efficiencies.

Join PMG: A Leader in Marketing InnovationRecognized by Ad Age as one of the Best Places to Work for 11 consecutive years and awarded by Fast Company as a Best Workplace for Innovators since 2022, PMG stands as a global marketing services and technology company dedicated to inspiring people and brands to realize their full potential. Through our unique operating system, Alli, we integrate business strategy, creative solutions, and media insights to create transformative digital solutions and media strategies.With a diverse team of over 900 employees worldwide, we proudly partner with esteemed brands like Apple, Nike, Sephora, and many others, delivering impactful marketing campaigns across more than 85 countries.Your Role at PMGAs the Lead Software Engineer, you will be an integral part of our collaborative and innovative team. You will contribute to the development of Alli, a cloud-based suite of AI-driven tools that enhances digital marketing for some of the world’s leading brands. Last year, our platform enabled marketing campaigns that connected with over 1 billion consumers globally, achieving remarkable results for our clients.You will focus on one of Alli’s core pillars—Actions, Data, or Insights—working alongside cross-functional teams to tackle complex challenges and create scalable, AI-enhanced solutions. Your contributions will be pivotal in enhancing PMG’s platform, helping brands engage their audiences more effectively.At PMG, we are looking for innovators and problem-solvers who are ready to take on the challenges of tomorrow. Your work will not just stay in the realm of theory; it will directly impact the future of digital marketing.