Senior Full Stack Developer @MMCTech

Marsh McLennan (MMC) 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 Marsh Bluestream team. In this role, you will play a vital part in designing, developing, and maintaining our next-generation developer platform, enabling the rapid delivery of client-facing web applications for our global insurance brokerage business.

You will work with a diverse group of talented professionals in a dynamic, start-up-like environment, helping to shape the future of digital solutions. This position will be based in Cluj-Napoca, Romania.

This is a fantastic opportunity for the right candidate to take on a key role in this critical technology initiative, working with engineers around the world to deliver a large-scale platform that will transform our business.

We will count on you to:

• Experience the excitement of a start-up culture while being backed by a global pioneer in the industry.
• Be part of our strategic core platform team that delivers innovative, pragmatic solutions for the rapid development and deployment of digital solutions for clients.
• Embrace a fast-paced, client-oriented approach with a focus on rapid iteration and a willingness to pivot quickly—adopt a proof-of-concept mindset to drive innovation and efficiency.
• Learn from failures, adapt quickly, and effectively communicate the lessons learned.
• Engage effectively with our counterparts in the Dublin and Cluj Bluestream teams.
• Develop and harden features and services that can be easily reused, configured, and adapted by implementation teams.
• Ensure seamless handover of operationalized prototypes 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:

• A minimum of 5 years of relevant full-stack experience.
• Proficiency in a modern frontend framework, ideally Angular (React or Vue are also acceptable).
• Hands-on experience with NestJS/NodeJS or a similar technology stack (e.g., Spring Boot).
• Strong comprehension of RESTful APIs and authentication standards.
• Practical experience with MongoDB/NoSQL.
• A creative, problem-solving mindset that drives your work.
• A personal curiosity for technology, trends, and standards—someone that other engineers want to work with.
• Excellent communication skills in both English and Romanian.

What makes you stand out:

• Practical experience with Kubernetes, DevOps, infrastructure, and observability (e.g., Apigee, DataDog, GitHub Actions).
• Data engineering or data analytics experience using Python/Databricks.
• Familiarity with prompt engineering techniques and an appetite for adopting the latest AI-assisted development techniques (LLMs, co-pilot, MCP, etc.).

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 on 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, and 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 McLennan (NYSE: MMC) is a global leader in risk, strategy and people, advising clients in 130 countries across four businesses: Marsh, Guy Carpenter, Mercer and Oliver Wyman. With annual revenue of $24 billion and more than 90,000 colleagues, Marsh McLennan helps build the confidence to thrive through the power of perspective. For more information, visit , or follow on LinkedIn and X.

Marsh McLennan 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 McLennan 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 McLennan 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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