Senior Software Engineer, AI Centre of Excellence

About the role

As a Senior AI Engineer within Checkout.com’s AI Centre of Excellence, you will drive the adoption of cutting‑edge Generative AI technologies to transform how we operate and innovate. You will mentor peers, set engineering best practices, and shape Checkout.com’s AI strategy, while also designing, building, and deploying AI solutions that enhance products and streamline business processes in collaboration with cross‑functional teams.

Key responsibilities

• Partner with product managers, data scientists, and engineers to research, validate, and deliver high‑impact Generative AI use cases.
• Design and build APIs and micro‑services that integrate AI capabilities into internal and external workflows.
• Develop, fine‑tune, and deploy LLM‑based applications such as chatbots, assistants, and knowledge extraction tools.
• Architect scalable AI infrastructure on cloud platforms (AWS, GCP, or Azure) using containerisation and Infrastructure‑as‑Code.
• Implement CI/CD pipelines and enforce best practices for secure, compliant AI deployment.

Required profile

• Hands‑on experience with large language models (e.g., GPT, BERT, Llama, Gemini) applied to real‑world problems.
• Strong backend engineering expertise, including RESTful API and micro‑service design.
• Proficiency in Python and JavaScript and familiarity with AI frameworks such as LangChain and PydanticAI.
• Solid understanding of cloud computing (AWS, GCP, Azure), containerisation (Docker, Kubernetes), and Infrastructure‑as‑Code (Terraform).
• Proven problem‑solving ability and excellent communication in fast‑paced environments.

Required skills

• LLM technologies (GPT, BERT, Llama, Gemini)
• Python
• JavaScript
• RESTful APIs
• Micro‑services
• AWS, GCP, Azure
• Docker
• Kubernetes
• Terraform
• LangChain
• PydanticAI