Senior Full-Stack Developer (MEAN\MERN) @MarshTech

Company:Marsh

Description:

Marsh  has established its EMEA Technology Hub in Cluj, Romania, 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 Full-Stack 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 Cluj-Napoca, Romania.

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 5 years of relevant experience.
• Proficiency in a modern frontend framework, ideally React (Vue or Angular are also great).
• Hands-on experience with NestJS / NodeJS or a similar technology stack.
• Experience with or knowledge of Python.
• Strong comprehension of RESTful APIs.
• Knowledge of deployments and infrastructure.
• Familiarity with prompt engineering techniques.
• A creative, problem-solving mindset that drives your work.
• Excellent communication skills.

What makes you stand out?

• Practical experience with Kubernetes and MongoDB and Cloud Services such as (S3, Lamdbas, SQS etc)
• Familiarity with document ingestion, unstructured data storage, or knowledge management systems is a plus.
• Familiarity with deploying and operationalizing AI/LLM-based solutions in production environments.
• Strong understanding of infrastructure, deployments, and cloud-native technologies
• Knowledge of Large Language Models (LLMs) and related topics such as Retrieval-Augmented Generation (RAG).

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;
• A yearly budget and the opportunity to build your flexible benefits package (up to 20% of your annual salary);
• 30+ days off (25 legal days off, 1 extra day off on your birthday, public holiday replacement days, extra buy/sell from your benefits budget);
• Performance Bonus scheme;
• Matching charity contributions, charity days off, and the Pay it Forward charity challenge;
• Core benefits - Pension, Life and Medical Insurance, Meal Vouchers, Travel Insurance;

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 $24 billion and more than 90,000 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 creating a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age, background, disability, ethnic origin, family duties, gender orientation or expression, 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.