Project Manager IV - ERP Implementation

Longenecker & Associates•Los Alamos, NM

1d•Hybrid

About The Position

Longenecker & Associates (L&A), a Geosyntec Company, seeks a motivated Project Manager IV to contribute to our mission supporting our work at Los Alamos National Labs in Los Alamos, NM. We contribute to DOE’s nuclear security and environmental remediation enterprise by providing the highest-caliber staff and experts. L&A is unconditionally committed to mission success and the well-being of employees, the nation and the environment. Our team members are passionate about building a healthier environment for generations to come. We are a community that interfaces and effectively communicates with all levels of management and government. If you have a passion for excellence, seek opportunities to engage in mission critical work, and consistently exceed expectations, apply now to join our professional family. We are seeking an experienced Senior Project Manager to lead the HR and Payroll functional workstreams within our enterprise-wide transformation from Oracle to SAP S/4HANA. This role will be responsible for day-to-day delivery execution and operates under the guidance of the Program Manager to ensure alignment with overall program objectives, timelines, and interdependencies. The role serves as the key point of coordination between functional teams, program leadership, and vendors. This is a hands-on delivery role requiring strong structure, accountability, and the ability to operate effectively within a highly matrixed program environment.

Requirements

Bachelor's degree in a relevant field OR equivalent experience and education.
Directly managed HR and Payroll workstreams in large-scale ERP implementations (preferably SAP S/4HANA).
Ability to drive day-to-day operations, maintain timelines, manage scope, and ensure alignment with program controls and governance.
Strong ability to communicate needs, risks, and progress to Program Managers and functional leads across business and IT.
8+ years of project management experience, including 5+ years managing ERP-related workstreams.
Demonstrated experience leading HR and Payroll components of major ERP implementations.
Strong understanding of HR and Payroll business processes and compliance requirements.
Proven ability to operate within a structured program governance model, collaborating with a Program Manager, Implementation Planner, and multiple workstream leads.
Strong risk, issue, and dependency management experience.
Proficiency with project management tools (e.g., MS Project, Jira).
Must be a U.S. Citizen and have the ability to obtain and maintain a DOE Q clearance.
Ability to work in a diverse work environment.
Satisfactory results of a pre-employment screening, which includes a background check and drug screening in accordance with Federal requirements.
Ability to fulfill and promote L&A core values.

Nice To Haves

PMP or equivalent certification preferred.
Experience with SAP S/4HANA strongly preferred; experience transitioning from Oracle EBS to SAP S/4 HANA is a plus.
Experience working with system integrators and implementation planners on ERP programs.
Experience working in organizations with complex stakeholder environments (federal, regulated industries, or large enterprises).
Background in Agile or hybrid delivery models within ERP programs.
Experience working within a federal, research, or DOE national laboratory environment is a plus, but not required.

Responsibilities

Lead the HR and Payroll functional workstreams within an enterprise-wide transformation from Oracle to SAP S/4HANA.
Responsible for day-to-day delivery execution.
Ensure alignment with overall program objectives, timelines, and interdependencies under the guidance of the Program Manager.
Serve as the key point of coordination between functional teams, program leadership, and vendors.
Drive day-to-day operations, maintain timelines, manage scope, and ensure alignment with program controls and governance.
Communicate needs, risks, and progress to Program Managers and functional leads across business and IT.
Operate within a structured program governance model, collaborating with a Program Manager, Implementation Planner, and multiple workstream leads.
Manage risks, issues, and dependencies.