Senior Manager – IT Product Development Full Time NEW

Tech Lead – MERN Stack + AI

Marsh (Mrsh) has established its Global Technology Hub in India, reflecting our commitment to innovation and excellence. This hub is central to our digital strategy, addressing emerging challenges and enhancing service delivery through advanced technology solutions that empower our clients and promote sustainable growth.

We are currently seeking a highly skilled and motivated Senior Fullstack (MERN) Developer to join our BCS Delivery Team. In this role, you will contribute to building foundational enterprise-wide solutions focused on document ingestion, unstructured data storage, knowledge management, and process automation. Your work will solve some of the toughest challenges across Marsh, delivering scalable and resilient services that support large user bases and critical revenue streams. You will collaborate with talented professionals in a dynamic environment, leveraging cutting-edge technologies including AI and Large Language Models (LLMs) to drive innovation and operational excellence. This position will be based in Noida.

We will count on you to:

• Contribute early to a rapidly evolving field with strong executive backing.
• Experience the excitement of a start-up culture while being backed by a global pioneer in the industry.
• Be part of our strategic tech hub that delivers foundation services and tools to the entire enterprise.
• Embrace a fast-paced, experimental approach with a focus on rapid iteration and a willingness to pivot quickly—adopt a proof-of-concept mindset to drive innovation and efficiency.
• Be able to learn from failures, adapt quickly, and effectively communicate the lessons learned.
• Engage effectively with our counterparts in the Dublin and Cluj AI teams.
• Operationalise and upscale prototype solutions to support large user bases.
• Ensure seamless handover of operationalised services to business technology teams.
• Thrive as a collaborative developer in an Agile environment.
• Embrace a lifelong learning mindset, continuously seeking opportunities for improvement.
• Establish and maintain best practice development frameworks and standards.
• Develop practices and guidelines to improve consistency and reuse of solutions.

What you need to have:

• Minimum 10+ years professional experience building applications.
• Strong proficiency in React (TypeScript preferred). Familiarity with Vue or Angular acceptable.
• Strong server-side experience with Node.js (NestJS or Express). TypeScript experience strongly preferred.
• Practical experience with MongoDB (or other document DBs) and data modeling.
• Familiarity with Python for scripting or ML integration.
• Solid understanding of RESTful APIs and web security best practices.
• Experience with containerization (Docker) and CI/CD pipelines.
• Familiarity with cloud deployments (AWS preferred/Azure) and basic infra-as-code (Terraform/CloudFormation) concepts.
• Familiarity with prompt engineering and integrating LLMs into applications.
• Hands-on problem solver with strong communication skills and ability to own features end-to-end.

What makes you stand out?

• Production experience with Kubernetes, AWS services (S3, Lambdas, SQS, IAM), or equivalent cloud tooling.
• Experience with document ingestion pipelines and unstructured data storage (PDF/text ingestion, OCR, parsing).
• Experience building Retrieval-Augmented Generation (RAG) solutions and using vector databases (Pinecone, Milvus, Weaviate, FAISS).
• Experience deploying and monitoring LLM-based features: model selection, cost control, rate limiting, caching, observability.
• Familiarity with LLM frameworks/APIs (OpenAI, Anthropic, Llama-family) and embeddings workflows.
• Strong understanding of cloud-native architectures, observability (logs/metrics/tracing), reliability, and cost optimization.

Why join our team:

• We help you be your best through professional development opportunities, interesting work, and supportive leaders;
• We foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have an impact for colleagues, clients, and communities;
• Our scale enables us to provide a range of career opportunities, as well as benefits and rewards to enhance your well-being.

Marsh (NYSE: MRSH) is a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $27 billion and more than 95,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information, visit corporate.marsh.com, or follow us on LinkedIn and X.

Marsh is committed to embracing a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age, background, caste, disability, ethnic origin, family duties, gender orientation or expression, gender reassignment, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law.

Marsh is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office-based teams will identify at least one “anchor day” per week on which their full team will be together in person.

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