React Full Stack - Senior Software Engineer
Marsh & McLennan Companies21 hours ago
Dublin, Ireland +69 moreSenior
Base Salary
$106k - $160k/yr
Responsibilities
- Design, build, and evolve full-stack capabilities for an AI-powered insurance document analysis platform.
- Develop React and TypeScript applications with component-based UI design and client-side API integration.
- Build Python services with FastAPI, background processing, and asynchronous Celery workflows.
- Design secure, scalable integrations with identity platforms, third-party APIs, OCR/document-processing services, and LLM-powered workflows.
- Contribute to document processing, coverage-gap analysis, quote comparison, and real-time progress features.
- Support cloud-native deployment, containers, monitoring, observability, and production operations using AWS and Kubernetes/EKS.
- Participate in code reviews and automated testing while mentoring engineers and promoting high-quality delivery.
Requirements
- Strong professional experience building modern React applications with TypeScript and component-based UI design.
- Professional experience developing Python services with FastAPI and Celery and designing API-based asynchronous systems.
- Ability to design secure, scalable systems integrating identity platforms, third-party APIs, OCR/document-processing services, and LLM-powered workflows.
- Experience with cloud-native deployment patterns, containers, monitoring, CI/CD, and production operations; AWS and Kubernetes/EKS experience is highly relevant.
- Hands-on experience with document-oriented or distributed data platforms such as MongoDB, Redis, and Amazon S3.
- Strong communication, collaboration, problem-solving, and technical leadership skills, including experience mentoring engineers.
- Preferred experience includes Mastra, LLM orchestration, prompt/tool design, AI agent workflows, Server-Sent Events, MongoDB change streams, OCR/document parsing, browser-based WASM processing, Microsoft Entra ID/MSAL, infrastructure as code, or Datadog.
Benefits
- Generous time off, including personal and volunteering time.
- Tuition reimbursement and professional development opportunities.
- Hybrid or remote work arrangement.
- Charitable contribution match programs.
- Stock purchase opportunities.
- Health and welfare benefits, 401K savings and other retirement programs, performance-based incentives eligibility, and employee assistance programs.
Tech Stack
Categories
About Marsh & McLennan Companies
Marsh McLennan is a global professional services firm providing risk, insurance and reinsurance brokerage, health, wealth, and management consulting to corporations, governments, and nonprofits. It operates through Marsh, Guy Carpenter, Mercer, and Oliver Wyman, earning fees and commissions for advisory, analytics, and placement services. Founded in 1905 and headquartered in New York, it is publicly traded on the NYSE under the ticker MMC.