Are you ready to write your next chapter? Make your mark at one of the biggest names in payments. With proven technology, we process the largest volume of payments in the world, driving the global economy every day. When you join Worldpay, you join a global community of experts and changemakers, working to reinvent an industry by constantly evolving how we work and making the way millions of people pay easier, every day. What makes a Worldpayer? It’s simple: Think, Act, Win. We stay curious, always asking the right questions to be better every day, finding creative solutions to simplify the complex. We’re dynamic, every Worldpayer is empowered to make the right decisions for their customers. And we’re determined, always staying open – winning and failing as one. Are you ready to make your mark? Then you sound like a Worldpayer. Where you’ll own it EMEA Our sites are hubs of activity, conversation, and openness. With inspiring, stylish workspaces we want people to feel excited to come and do their best work. What You’ll Own As a Senior ML & AI Engineer, you’ll work with bleeding-edge technologies to build innovative fintech products that transform how the world pays, banks, and invests. You’ll be responsible for developing core versions of AI and GenAI applications, identifying client requirements, defining technical specifications, collaborating with engineering teams, and supporting client training. Design, build, and deploy ML models, LLMs, and generative AI systems for real-world applications Develop agentic AI workflows using orchestration frameworks such as LangChain, AutoGen, or similar Fine-tune and optimize large-scale models for performance, scalability, and reliability Analyze, design, program, debug, and enhance software used in commercial-grade applications Translate business requirements into technical specifications and system designs Write clean, maintainable code and perform rigorous testing and debugging Participate in software design meetings and contribute to architectural decisions Document development processes and support installation and maintenance procedures Collaborate with internal teams (Product, Sales, Client Training) to ensure successful adoption of AI solutions Lead or contribute to project planning, budgeting, and delivery Present technical insights and solutions to both technical and business stakeholders What You Will Need Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience) Strong programming skills in Python and experience with ML/AI frameworks (e.g., PyTorch, TensorFlow, Hugging Face) Hands-on experience with LLMs, transformers, and generative models Familiarity with agentic AI tools and orchestration frameworks Solid understanding of data science, statistics, and model evaluation techniques Experience with cloud platforms (AWS, GCP, Azure) and MLOps tools Proficiency in software development methodologies (Agile, Waterfall, etc.) Strong grasp of design patterns, AI system architecture, and modeling techniques Excellent communication skills with the ability to explain complex concepts to diverse audiences Proven ability to lead, mentor, and collaborate across multidisciplinary teams Added Bonus If You Have Experience with financial services, banking, or payments technology Familiarity with FIS/Worldpay products and services Knowledge of industry standards (e.g., ISO, CMM, Six Sigma) Experience with secure, scalable cloud-native architectures Contributions to open-source AI/ML projects or research publications What makes a Worldpayer What makes a Worldpayer? It’s simple: Think, Act, Win. We stay curious, always asking the right questions to be better every day, finding creative solutions to simplify the complex. We’re dynamic, every Worldpayer is empowered to make the right decisions for their customers. And we’re determined, always staying open – winning and failing as one. Does this sound like you? Then you sound like a Worldpayer. Apply now to write the next chapter in your career. Privacy Statement Worldpay is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how Worldpay protects personal information online, please see the Online Privacy Notice. Sourcing Model Recruitment at Worldpay works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. Worldpay does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.