Senior Software Engineer – AI Backend

About the role

Mastercard's Dynamic Yield team is looking for a Senior Software Engineer to design and build backend services that power AI‑driven products. You will work on large language models, AI agents and modern generative AI technologies, delivering high‑performance, scalable solutions.

Key responsibilities

• Design, develop and optimise scalable backend services and APIs for AI products.
• Build production‑grade applications and workflows using LLMs, AI agents and GenAI technologies.
• Implement agentic workflows, including tool calling, orchestration, context management and integration with internal services.
• Integrate and optimise LLM‑based capabilities while balancing quality, latency, reliability and cost.
• Maintain reliable, high‑performance distributed systems and ensure observability.
• Own technical solutions from design through deployment and production monitoring.
• Collaborate with product, DevOps and other engineering teams to deliver end‑to‑end solutions.

Required profile

• 5+ years of software engineering experience with a strong focus on backend development.
• Proven ability to design and build scalable, reliable production systems.
• Hands‑on experience with cloud platforms, preferably AWS.
• Experience with containerisation and orchestration (Docker, Kubernetes).
• Solid understanding of microservices, APIs and distributed system design.

Required skills

• Python
• Node.js
• AWS
• Docker
• Kubernetes
• PostgreSQL
• Redis
• DynamoDB
• Microservices
• APIs
• Distributed systems
• Large Language Models (LLMs)
• Generative AI
• AI agents