9 professional services jobs found in Irvine, CA

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Oct 20, 2026
Full time
Contract Administrator Senior
$101,275 - $139,339 yearly
Orange County Transportation Authority Orange, CA
Job Description Senior Contract Administrator – Capital Projects Under general direction, manages complex procurement and contract administration activities supporting OCTA's major capital improvement projects and transportation programs. This position plays a key role in delivering high-profile infrastructure projects by coordinating competitive procurements, administering contracts, and ensuring compliance with applicable policies, procedures, and funding requirements. This is an exempt position in salary grade 205: Min – $101,275.20 | Mid – $120,307.20 | Max – $139,339.20/annually.  The starting salary will be within this range based on qualifications. This posting will remain open until a candidate is selected. What You’ll Do Manage complex procurements and contract administration activities for major transportation and capital improvement projects. Develop and administer requests for proposals, invitations for bids, cooperative agreements, and other...
Nov 13, 2026
Full time
Lead Procurement Program Manager
$137,800 - $172,200 yearly
Rivian Irvine, CA
About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we constantly challenge what’s possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations. Role Summary The Rivian Procurement Program Management team is looking for a Lead Program Manager to support its Mid-Sized Platform (MSP) vehicle programs (R2, R3, R3X). As a Lead Program Manager, you coordinate end-to-end Procurement program execution—program scoping, part sourcing, part tooling, part ordering, and change management—across MSP vehicle programs. You uncover and clearly articulate program risk to senior leadership, resolve cross-functional bottlenecks at...
Nov 13, 2026
Full time
Sr. Procurement Program Manager
$107,800 - $134,800 yearly
Rivian Irvine, CA
About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we constantly challenge what’s possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations. Role Summary The Rivian Procurement Program Management team is looking for a Sr. Program Manager to support its Charging and Battery programs. As a Sr. Program Manager, you coordinate end-to-end Procurement program execution—program scoping, part sourcing, part tooling, part ordering, and change management—across Charging and Battery programs. You uncover and clearly articulate program risk to individual contributors and managers, resolve cross-functional bottlenecks at...
Nov 13, 2026
Full time
Director of Materials and Purchasing
$110,000 - $165,000 yearly
Aluminum Precision Products Inc Santa Ana, CA
Aluminum Precision Products (APP) is an international leader in manufacturing aluminum forgings. We offer you the opportunity to be a part of a globally recognized organization that enjoys an unparalleled reputation for quality. Here you’ll be challenged on a daily basis, tasked with solving problems, working with smart, energetic, and dedicated people with an opportunity to grow and learn. Job Summary: Manage and direct the purchasing of goods and services of APP. You will be responsible for identifying potential supplier sources, conducting interviews with potential vendors, negotiating favorable supplier agreements and managing supplier and vendor contracts. You will continually manage and evaluate the performance of each vendor to ensure the partnership remains mutually beneficial. Manage APP’s sourcing capabilities and supply chain and will be responsible for strategizing and negotiating with suppliers and vendors to acquire the most cost-effective deals and...
Oct 02, 2026
Full time
Manager Procurement
L3Harris Anaheim, CA
L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Manager, Procurement   Job Location: Camden NJ, Millersville MD, Northampton MA, Herndon VA, or Anaheim CA (On-Site) Job Schedule : 9/80 Job Description:  The Manger of Procurement is responsible for all aspects of material...
Aug 24, 2026
Full time
Procurement Specialist
Yuhaaviatam of San Manuel Nation / Yamaava Indian Reservation Highland, CA
ESSENTIAL DUTIES AND RESPONSIBILITIES 1. Reviews and processes purchase orders and requisitions for goods and services. Processes all procurement transactions in compliance with established laws, ordinances, policies and ethical principles. 2. Collaborates with internal departments to understand each department’s procurement needs and provide support.                                                                                                                  3. Sources and evaluates suppliers, negotiates pricing, and monitor supplier performance 4. Assist end users with the development of specifications to ensure product and service needs are well-defined and regularly used items are accurately and correctly maintained in Procure-to-Pay (P2P) system catalogs.   5. Identifies and realizes cost-saving and cost-reduction opportunities without compromising supply assurance or quality. 6. Arranges and conducts job walks, pre-bid or proposal conferences, vendor demonstrations...
Nov 13, 2026
Full time
Senior Specialist Procurement
L3Harris Anaheim, CA
L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Sr Specialist Procurement   Job Location: Camden NJ, Anaheim CA, Millersville MD, Northampton MA, Herndon VA, Palm Bay FL (On-Site) Job Schedule: 9/80   Job Description:   Maintain strategic alliances and partnerships that have...
Oct 23, 2026
Full time
Senior Associate, Procurement
L3Harris Anaheim, CA
L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Sr Assoc, Procurement Job Location: Anaheim, CA; Millersville, MD; Camden, NJ or Northampton, MA Job Schedule: 9/80   Job Description:   Maintain strategic alliances and partnerships that have already been established by the...
Oct 20, 2026
Full time
Specialist Procurement (Material Estimator)
L3Harris Anaheim, CA
L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Specialist, Procurement (Material Estimator) Job Location: Anaheim, CA Job Schedule: 9/80   Job Description:   The Material Estimator will work and is responsible for accurately compiling the complete cost of materials...