Staff Engineer (Python/AWS)

Company Description

Experian is a global data and technology company, powering opportunities for people and businesses around the world. We help to redefine lending practices, uncover and prevent fraud, simplify healthcare, create marketing solutions, and gain deeper insights into the automotive market, all using our unique combination of data, analytics and software. We also assist millions of people to realize their financial goals and help them save time and money.

We operate across a range of markets, from financial services to healthcare, automotive, agribusiness, insurance, and many more industry segments.

We invest in people and new advanced technologies to unlock the power of data. As a FTSE 100 Index company listed on the London Stock Exchange (EXPN), we have a team of 22,500 people across 32 countries. Our corporate headquarters are in Dublin, Ireland. Learn more at experianplc.com.

Job Description

• Design, develop, and maintain Agentic AI modules using Python and MCP, including agent-to-agent collaboration.
• Architect and deliver GenAI-powered applications, integrating LLMs, prompt engineering pipelines, and RAG-based patterns into enterprise-grade services.
• Implement robust authentication and authorisation for MCPs, AI Agents, and APIs using OAuth 2.0, JWT, IAM roles, and mTLS, ensuring compliance with enterprise security standards.
• Build and deliver scalable, high-performance applications and microservices using Java or Python on AWS, leveraging services including EC2, S3, SQS, SNS, ECS, EMR, Lambda, Glue, Athena, API Gateway, and DynamoDB.
• Design end-to-end solutions across batch processing and real-time streaming pipelines, and work across relational (Aurora Postgres) and NoSQL (DynamoDB, MongoDB) databases with strong data modelling practices.
• Integrate Veracode or Checkmark tooling into CI/CD pipelines, enforce data encryption at rest and in transit.
• Apply strong working knowledge of communication protocols (REST, gRPC, GraphQL) to make sound integration and interoperability decisions.
• Troubleshoot production issues, perform thorough root-cause analysis, and implement high-quality, lasting fixes.
• Write clean, efficient, and maintainable code aligned with engineering best practices; conduct thoughtful peer code reviews and enforce coding standards.
• Drive maturity in CI/CD pipelines, IaC (Terraform, AWS CDK), automated testing, and DevOps practices to improve delivery speed and release confidence.
• Contribute to architecture, system design, and estimation discussions, and identify opportunities for automation, optimisation, and continuous improvement.
• Collaborate closely with cross-functional teams including QA, DevOps, Product, Solution Architecture, and UX.
• Mentor engineers and foster a strong engineering culture focused on quality, security, and innovation.

Qualifications

• 13+ years of software engineering experience with strong proficiency in Java and Python.
• Hands-on experience designing and deploying Agentic AI, MCP servers, and Multi-Agent Systems in a production environment.
• Deep familiarity with the AWS cloud ecosystem and distributed systems architecture.
• Experience with NoSQL (DynamoDB, MongoDB) and relational databases (Aurora MySQL), including data modelling and query optimisation.
• Strong knowledge of API authentication and security — OAuth 2.0, OpenID Connect, JWT
• Experience with Veracode or equivalent security scanning tools integrated into CI/CD pipelines.
• Proficiency with IaC tools (Terraform) and CI/CD platforms (Jenkins).
• Strong understanding of system design, microservices, debugging, and performance optimisation.
• Excellent problem-solving, communication, and collaboration skills in a regulated enterprise environment.

Additional Information

Our uniqueness is that we celebrate yours. Experian's culture and people are important differentiators. We take our people agenda very seriously and focus on what matters; DEI, work/life balance, development, authenticity, collaboration, wellness, reward & recognition, volunteering... the list goes on. Experian's people first approach is award-winning; World's Best Workplaces™ 2024 (Fortune Top 25), Great Place To Work™ in 24 countries, and Glassdoor Best Places to Work 2024 to name a few. Check out Experian Life on social or our Careers Site to understand why.

Experian is proud to be an Equal Opportunity and Affirmative Action employer. Innovation is an important part of Experian's DNA and practices, and our diverse workforce drives our success. Everyone can succeed at Experian and bring their whole self to work, irrespective of their gender, ethnicity, religion, colour, sexuality, physical ability or age. If you have a disability or special need that requires accommodation, please let us know at the earliest opportunity.

Experian Careers - Creating a better tomorrow together

Find out what its like to work for Experian by clicking here