MARILYN SERA
Linkedin.com/in/marilynsera
Summary
Project Manager at Siemens Healthineers delivering cross‑functional programs that bridge HR, IT, and Finance. Trusted to install PMO structure, improve visibility, and drive audit‑ready outcomes. Recognized for collaborative problem‑solving, issue resolution, and clear stakeholder communication.
Overview
12
12
years of professional experience
Work History
Project Manager / PMO – HR Operations & Payroll Stabilization
Siemens Healthineers
01.2025 - Current
- Lead multi‑workstream Payroll Stabilization across HR Ops and vendors, ensuring process integrity and audit readiness.
- Implement payroll governance, SOPs, and onboarding playbooks that standardize execution and strengthen knowledge transfer.
- Improve decision cadence and visibility through structured reporting, escalation paths, and disciplined issue tracking (Monday.com).
- Partner with payroll management to identify efficiency gaps and drive process improvements.
Global Project Manager / PMO – HRMS Program
Siemens Healthineers
01.2020 - 01.2025
- Ran PMO operations for 100+ global stakeholders; standardized governance and reporting to accelerate decisions.
- Supported the design and rollout of core project processes (planning, change control, RAID, status reporting, documentation standards) to drive consistency.
- Owned and conducted onboarding for all project team members, ensuring alignment to PMO processes, documentation, and tool usage.
- Built Azure DevOps dashboards that elevated transparency and shortened feedback loops.
- Led localization of 100+ assets in 7 languages with IT/SMEs: improved consistency, release quality, and reuse.
- Aligned with Process, Workstream Owners, and Functional Leads to manage deliverables and meet project expectations.
Operations Project Manager
BPM LLP
01.2019 - 01.2020
Senior Associate/Project Manager
Frank, Rimerman & Co., LLP
01.2017 - 01.2019
Legal Supervisor/Project Manager
Oportun, Inc.
01.2014 - 01.2015
Education
B.S. - Administration of Justice
San Jose State University
J.D. - Law
Lincoln Law School
Project Management Training -
PMI
Skills
- Project Mgmt
- PMO Governance
- Stakeholder Mgmt
- Risk/Issue Mgmt
- Process Optimization
- Compliance & Quality
- Continuous Improvement
- Cross-Functional Collaboration
- Planning & Execution
Websites
Timeline
Project Manager / PMO – HR Operations & Payroll Stabilization
Siemens Healthineers
01.2025 - Current
Global Project Manager / PMO – HRMS Program
Siemens Healthineers
01.2020 - 01.2025
Operations Project Manager
BPM LLP
01.2019 - 01.2020
Senior Associate/Project Manager
Frank, Rimerman & Co., LLP
01.2017 - 01.2019
Legal Supervisor/Project Manager
Oportun, Inc.
01.2014 - 01.2015
J.D. - Law
Lincoln Law School
B.S. - Administration of Justice
San Jose State University
Project Management Training -
PMI