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Marsh & McLennan

Brokers insurance and runs risk and HR consulting

Tech Lead

Full-TimeUpdated on 10/24/2026
No salary listed
Senior
Bachelor's, Master's
Paris, France
HybridHybrid; colleagues work from the local office or onsite with clients at least three days per week.
Software EngineeringFull-Stack Engineering

About the job

Requirements
  • A degree from an engineering school or a Master's degree in computer science (Bac +5).
  • Confirmed full-stack development experience, ideally with modern web environments, with 5–7 years or more.
  • A successful first experience in technical leadership or supervision.
  • Strong fundamentals in front-end technologies such as React or Angular and back-end technologies such as C#, JavaScript, and SQL.
  • Proficiency with Git and understanding of CI/CD.
  • Comfort with cloud-native and event-driven architectures (EDA).
  • Knowledge of software architecture, continuous integration, and development best practices.
  • Comfort working in secure and regulated environments.
  • Proficiency in English.
Responsibilities
  • Build internal development capability and support implementation of new digital services for external and internal users.
  • Technically lead development, ensure code quality, and support teams in implementing best practices.
  • Design and develop innovative solutions.
  • Define and implement application architectures suited to requirements.
  • Carry out and oversee development across the full software lifecycle, including design, coding, testing, integration, and maintenance.
  • Ensure code quality and application robustness, including security, performance, and maintainability.
  • Collaborate with central Security and Operations teams on the CI/CD pipeline.
  • Support developers' skill development and help resolve blockers.
  • Coordinate closely with Business Analyst, Data, business-owner, and infrastructure teams.
  • Participate in technical and functional decisions and defend reasoned choices.
  • Contribute to technical documentation and continuous improvement of practices.
  • Demonstrate technical excellence in front-end and back-end fundamentals while applying good practices, security, and the defined architecture.
  • Share expertise through code reviews, individualized coaching, and collaborative workshops.
  • Monitor technology developments and pursue continuous learning.
  • Collaborate with local and international IT teams, business-owner teams, the Data Science team, and business functions.
  • Contribute to an organizational project.
Desired Qualifications
  • Experience with modern web environments is ideal.

About the company

Marsh & McLennan Companies, which operates under the Marsh brand, is an insurance broker and consulting group serving businesses, governments and institutions worldwide. Its Marsh Risk unit arranges property, casualty, cyber and employee-benefit coverage, while Guy Carpenter places reinsurance for insurers. Mercer advises employers on pay, benefits, retirement and investments, and Oliver Wyman, Lippincott and NERA handle strategy, brand and economic consulting. Brokers earn commissions and fees from placing coverage, and consultants bill client fees or charge fees based on assets or plan members. The company traces its roots to 1871 and is headquartered in New York City.

Company Size

10,001+

Company Stage

N/A

Total Funding

N/A

Headquarters

New York, NY

Founded

1871

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Simplify Jobs

Simplify's Take

What believers are saying

  • Consulting drives growth: Mercer and Oliver Wyman's group grew 8% organically in the June 2026 quarter, versus 3% for broking.
  • Profits cushion jobs: Marsh kept about 27 cents of operating profit per sales dollar in 2025, before one-time costs.
  • Many career paths under one employer: 95,000+ colleagues span broking, reinsurance, benefits and strategy consulting in 130 countries.

What critics are saying

  • Expect cuts: Thrive, announced October 2025, sets aside $500 million, mostly severance and technology, to save $400 million yearly.
  • Pricing works against broking: Marsh's index shows commercial rates fell 6% in the June 2026 quarter, an eighth straight drop.
  • Back-office roles are being consolidated: a Business and Client Services unit is pooling operations and technology teams company-wide.

What makes Marsh & McLennan unique

  • Consulting is a third of the business: Mercer and the Oliver Wyman group earned 36% of 2025 revenue.
  • Investment management sets it apart: Mercer is the world's largest outsourced chief investment office, running portfolios for institutions.
  • Scale sets it apart: 2025 revenue grew 10% to $27.0 billion across broking, reinsurance and consulting.

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