Capgemini

AWS API Engineer / Data Architect

Capgemini
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3 days ago
Birmingham, United Kingdom or London, United KingdomSenior
H1B Sponsor

Responsibilities

  • Design and build secure serverless and microservices APIs on AWS using Lambda and API Gateway.
  • Create agent-ready and tool-calling interfaces, including MCP-based patterns, schemas, machine identities, and guardrails.
  • Support distributed-system and data integration through event-driven patterns, retrieval, and vector-data access.
  • Implement IAM, token-based authentication, identity-provider integrations, and access controls for human and autonomous callers.
  • Build logging, monitoring, tracing, audit trails, and human oversight for API and AI-driven traffic.
  • Assess technical debt, recommend modernization approaches, and support deployment planning, cutover, and post-go-live stabilization.
  • Contribute to PostgreSQL, document-store, and vector-store data architecture with data engineering teams.

Requirements

  • Strong hands-on experience designing and building production APIs and microservices in complex or regulated environments.
  • Hands-on AWS serverless experience with Lambda and API Gateway, plus security and networking fundamentals including IAM and VPC.
  • Solid understanding of RESTful APIs, integration patterns, and distributed systems.
  • Proficiency in at least one backend language such as Python, with strong software engineering practice using Git, code review, unit testing, and CI/CD.
  • Experience across CI/CD, release planning, cutover, post-go-live stabilization, and production troubleshooting.
  • Experience with observability tooling such as CloudWatch, ELK, Prometheus, or Grafana.
  • Ability to communicate architecture decisions to technical and non-technical stakeholders.
  • Preferred exposure to AI and agentic integration, tool-calling or function-calling APIs, MCP, Amazon Bedrock, Bedrock Agents, Knowledge Bases for Bedrock, or vector search.
  • Preferred experience with GraphQL and Apollo, event streaming such as Apache Kafka, or relevant AWS certifications.

Benefits

  • Hybrid-first working across company offices, client sites, and home, with no fully remote arrangement.
  • Flexible working arrangements are available to UK employees.
  • Training and development opportunities including thinktanks, hackathons, approximately 250,000 courses, and external certifications.
  • Pre-employment checks include identity, nationality or immigration status, three years of continuous employment history, and an unspent criminal-record check.
  • The role requires eligibility to obtain UK Security Check clearance, including continuous UK residence for the previous five years and other clearance criteria.

Tech Stack

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Capgemini

About Capgemini

10,000+ employees

Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organizations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2025 global revenues of €22.5 billion. Make it real | www.capgemini.com

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