Senior IT Project Manager
We are seeking a Senior IT Project Manager to join our team at Marsh. This role will be based in Mexico City. This is a hybrid role that has a requirement of working at least three days a week in the office. As a Senior IT Project Manager at Marsh, you will own end-to-end delivery for assigned workstreams — defining and maintaining plans, governance, budgets and resource allocations; managing cross-functional and vendor teams; mitigating risks; and ensuring measurable benefits realisation. Typical initiatives include in-house software development projects, AI initiatives, cloud, SaaS implementations and IT infrastructure projects. Delivery approaches will include Agile, Waterfall or hybrid lifecycle models.
Key responsibilities
Lead planning, governance and day-to-day delivery across multiple workstreams, ensuring alignment to scope, schedule, budget and quality standards.
Manage stakeholder relationships (business sponsors, regional IT, operations, vendors, global delivery teams); drive transparency and timely escalation.
Develop and maintain project artefacts: scope documents, schedules, resource plans, financials, risk and issue logs, dependency registers and change-control records.
Apply and enforce PMO methodology and best practices (Agile, Waterfall, hybrid) and ensure documentation and audit readiness.
Coordinate cross-project dependencies and integrate workstream plans with programme/portfolio timelines.
Track project financials and resource usage; prepare regular status and value-add reports for sponsors and steering committees.
Lead vendor/third-party management: contract and SLA negotiation, performance monitoring and issue resolution.
Define business value and benefits; develop and execute benefits-realisation and adoption plans.
Facilitate governance and delivery meetings, drive decisions, and ensure actions are captured and followed up.
Coach and motivate delivery teams; identify training and skills gaps and support continuous improvement.
Required qualifications
Bachelor’s degree in Computer Science, Information Technology, Business or related discipline — or equivalent experience.
5-10+ years’ experience delivering IT projects/programmes with demonstrable end-to-end delivery of medium to large-scale initiatives.
Proven experience with Agile (Scrum/Kanban), Waterfall and hybrid delivery models.
Strong stakeholder management and communication skills; ability to influence at all levels.
Experience managing project financials, resource plans and dependencies across multiple teams.
Track record of working with vendors in matrixed, multi-vendor environments.
Fluent English (written and spoken).
What makes you stand out:
PMP, PRINCE2 Practitioner, Agile/Scrum Master or equivalent certification.
Experience in insurance, broking or financial services projects preferred.
Experience delivering AI, cloud (AWS/Azure) or SaaS solutions and familiarity with application architectures, databases and integrations.
Proven ability to lead benefits-realisation and change-adoption activities.
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.
What We Do
Marsh McLennan (NYSE: MMC) brings together nearly 78,000 experts in risk, strategy, and people across Marsh, Guy Carpenter, Mercer, and Oliver Wyman, serving clients in over 130 countries. Marsh enables enterprise worldwide by helping clients manage risks, transforming uncertainty into opportunity. Guy Carpenter helps clients grow profitably with reinsurance broking expertise, advisory services, and advanced analytics. Mercer helps organizations advance the health, wealth, and careers of their most vital asset — their people. Oliver Wyman’s expertise in strategy, operations, risk, and organization transformation changes what is possible for our clients, their industries, and society. Together, we combine a unique range of capabilities to help our clients solve problems, seize opportunities, and build lasting success in increasingly complex operating environments.






