Full Stack Engineer (Python/React/Node.js) @MMCTech

You will be joining Mercer’s Investment Engineering team, where we design, build, and maintain innovative applications that empower our investment teams to deliver exceptional results. Our work is highly collaborative—we partner closely with teams such as Data Pipelines, DevOps, and Infrastructure to create solutions that drive real value for Mercer and our clients. If you’re passionate about making an impact through technology and enjoy working in a dynamic, team-oriented environment, you’ll thrive with us.

We will count on you to:

Software engineering at Mercer is about more than just writing code. Your responsibilities will include:

• Full Stack Development: Work on our internal portfolio management system and other tools supporting the investment team, using a mix of frontend (React) and backend (primarily Python, Node.JS) skills.
• API & Data Services: Learn, design, and build REST or GraphQL services to support an API-driven culture. Develop data pipelines with a focus on ETL and ELT.
• Integration & Data Modeling: Integrate existing applications with new data sources and design data models using Hive data lake, MongoDB, or SQL Server as needed.
• End-to-End SDLC: Participate in all aspects of the software development lifecycle, including deployment to production.
• UI & UX: Demonstrate a keen interest in user experience and user interface design.
• Business Analysis: Engage with stakeholders to understand business processes and needs, and formulate pragmatic solutions. Collaborate closely with the business to prioritize and contextualize assignments.
• Technology Solutions: Provide pragmatic software solutions, contribute to the Mercer technology stack, review code and architecture, and assist the team lead in delivering high-quality solutions.
• Quality & Mentorship: Ensure software reliability through testing, mentor junior team members, and promote a culture of learning.

What you need to have:

• 2+ years of application and service development in Python, Node.js, REST/GraphQL, Java, or C#.
• Experience with Git, including code review via pull requests.
• 2+ years of SQL Server or NoSQL development.
• Clean code, test-driven development, and other best coding practices.
• 1+ years of experience with React.js and Redux preferred.
• Working knowledge of Docker container management.

What Makes You Stand Out:

• 2+ years of exposure to ETL pipelines (Airflow, Spark, dbt).
• Commercial experience in finance and investment management is a plus.
• Experience as a software engineer collaborating with other engineers and business analysts.
• Pragmatic approach to business solutions, with flexibility to adapt to changing requirements and a strong attention to detail.
• Self-driven and motivated work ethic.
• Enthusiasm for keeping up to date with industry trends and technologies, and bringing new ideas to the team.
• Energetic and enthusiastic personality.
• Strong, clear, and concise communication skills—verbal, written, and interpersonal.

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 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.
• An opportunity to work in a fast-growing, innovative company with lots of room for progression and career growth;
• A fail-friendly environment that encourages learning and initiative;
• 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;
• We champion flexible working, and our mission is to help you find YOUR work-life balance, whether that's standard working, flex-time working, or working from home

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 marshmclennan.com, 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.