Purchasing Coordinator - Laboratories

LE002 Onterris Payroll, LLC; Orange (CA); On-site; USD 34,000 - 48,000; Full time

Job summary

Onterris Laboratories in Orange, CA is seeking an on-site Purchasing Coordinator to bridge teams and suppliers, translate internal needs into purchase orders, and support day-to-day procurement operations. You will handle Coupa purchasing processes, verify pricing and supplier information, track orders, maintain vendor records, and collaborate with the Corporate Procurement Team to onboard new vendors.

The role requires 2–4 years in purchasing or supply chain, a degree in business or related

Qualifications

• Experience with procurement/ERP systems (Coupa, Workday).
• Strong understanding of PO and invoicing processes.
• Excellent Excel skills and proficiency with procurement software.
• Proficient with MS Office and procurement software.
• Attention to detail and accuracy.
• Strong communication and vendor-relationship skills.
• Organizational and multitasking abilities.
• Problem-solving and adaptability.
• Bachelor's/Associate degree in business or supply chain preferred.
• 2–4 years in purchasing, procurement, or supply chain.
• CPSM/CSCP/CPP certifications are a plus.

Responsibilities

• Serve as local lead for Coupa purchasing processes, including requisitions and PO workflows.
• Create, process and manage purchase orders from requisition to delivery.
• Verify pricing, quantities and supplier data before processing orders.
• Track orders and shipments; coordinate with suppliers to ensure on-time delivery.
• Maintain vendor records, contracts and compliance documentation.
• Communicate order status and resolve issues with suppliers and internal teams.
• Support sourcing activities by gathering quotes and cost-saving opportunities.
• Onboard new vendors with Corporate Procurement and maintain records.
• Prepare procurement activity and utilization reports.

Skills

Coupa/Workday

PO & invoicing

Excel skills

Procurement software

Attention to detail

Vendor relations

Organization

Problem solving

Business/supply chain degree

2–4 years experience

CPSM/CSCP/CPP a plus

Education

Business or supply chain degree

Tools

Coupa

Workday

Job description

About Us

At Onterris, we build careers grounded in purpose, responsibility and real-world impact. “For Planet and Progress” is our north star that guides everything we do. We believe environmental responsibility and human progress are interconnected, interwoven and international. Our scientists, engineers, field teams, consultants and professionals collaborate across disciplines and geographies, guiding industries and governments, ensuring that communities and environments thrive. When you join us, you’re not just forging a career, you’re joining a movement. A movement for better thinking, smarter solutions and lasting impact. Together, we will advance our way of life and protect the integrity of our environment every step of the way.

A Day in the Life

Be the connection that keeps everything moving. As an on-site Purchasing Coordinator at Onterris Laboratories in Orange, CA, you’ll bridge teams and suppliers, coordinate purchasing activities, and play a key role in supporting day-to-day procurement operations. You’ll be responsible for translating internal needs into accurate purchase orders, coordinating with suppliers, and maintaining purchasing documentation. This coordinator acts as a communication hub between internal departments and vendors, ensuring smooth supply chain flow. The compensation range for this role is $25 to $35 per hour, commensurate with experience, skills, and geographic location. Schedule: Full-Time, Monday - Friday.

Responsibilities

• Serve as a local lead for Coupa purchasing processes, including requisitions, purchase orders, receiving, ordering templates, and routine purchasing workflow support
• Create, process, and manage purchase orders from requisition to delivery and receipt, ensuring transactions are completed accurately and timely in Coupa
• Verify pricing, quantities, supplier information, and purchasing requirements and compliance before processing orders and proactively research discrepancies when identified
• Track orders and shipments, proactively follow up on delays or backorders, and work with suppliers and lab teams to ensure on-time delivery
• Maintain vendor records, contracts, blanket POs, and compliance documentation
• Communicate with suppliers regarding order status, pricing discrepancies, backordered inventory, lead times and other issues; resolve these issues in a timely manner
• Resolve invoice discrepancies with Accounts Payable, laboratory users and suppliers to resolve PO, receipt and pricing
• Support sourcing activities by gathering quotes and comparing pricing and identifying opportunities for cost savings
• Establish and maintain inventory levels and reorder materials as needed to allow for continuous, uninterrupted production
• Work directly with Corporate Procurement Team to onboard new vendors
• Prepare procurement activity reports and maintain organized purchasing records
• Generate utilization reports and track consumable spending trends by laboratory, project, vendor and category
• Develop ordering templates and train users on their usage
• Communicate as the primary site contact with Corporate Procurement team for issues or updates regarding national vendors, pricing lists, and vendor contact information

Your Expertise and Skills

• Proficiency with procurement/ERP systems (e.g., Coupa, Workday)
• Strong understanding of purchase order and invoicing processes
• Strong Microsoft Excel skills and proficiency with procurement software
• Competence in Microsoft Office and procurement software
• Attention to detail and accuracy
• Strong communication and vendor‑relationship skills
• Organizational and multitasking abilities
• Problem‑solving and adaptability
• Associate or bachelor’s degree in business, supply chain, or related field preferred
• 2–4 years in purchasing, procurement, or supply chain support
• Certifications: CPSM, CSCP, CPP is a plus.

Work Environment and Physical Requirements

• Works onsite in a combination of office, laboratory production areas, and warehouse environments to support purchasing, inventory, and operational needs
• Regular interaction with vendors, suppliers, internal departments, and management through phone, email, virtual meetings, and in-person communication
• Fast-paced environment requiring the ability to manage multiple priorities, deadlines, and interruptions
• Frequent use of computers, purchasing software, ERP systems, spreadsheets, and other business applications
• Frequent walking through office, laboratory, and warehouse areas to evaluate inventory levels, identify material needs, or purchasing activities
• Ability to remain stationary for extended periods while performing computer-based work, data entry, and procurement activities
• Frequent use of hands and fingers for typing, data entry, and operating office equipment
• Ability to stand, walk, bend, reach, lift, and carry items weighing up to 50 lbs., such as files, office supplies, or product samples

#LI-SG1 #INDONT

Onterris is a leading global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect. Guided by our mission to advance the way of life without compromising the integrity of our environment, we believe environmental responsibility and human progress are fundamentally connected. Our scientists, engineers, field teams and consultants apply systems thinking that unites science, data and practical expertise to deliver solutions that strengthen our clients’ resilience, mitigate risk and protect the air, water and soil that sustain communities, while uncovering responsible paths forward for planet and progress. For more information, visit www.onterris.com. We are an equal opportunity employer and encourage applications from people of all backgrounds. We acknowledge that these experiences and perspectives help to enrich our teams and contribute to our ongoing success. We are committed to providing access and reasonable accommodation in our employment for all applicants. For US residents, click here to learn more. At Onterris, we take on complex challenges with purpose and momentum, alongside teams that lead with integrity, deliver together, and invest in your growth.

Working with inspiring coworkers and clients across the globe over the past five years has been incredibly rewarding. Their passion motivates me to improve our client experience and work that I deliver. – Erin Peck, Emissions Services

There are not many places where a toxicologist can be boots‑on‑the‑ground at an environmental emergency one day and deep in a human health risk assessment or litigation the next, but this company is one of them, and honestly, that breadth is what makes me love the work. We are a team of scientists with a broad range of talents and experiences who genuinely take the mission to heart, because protecting people and communities from chemical hazards is not abstract here; it is exactly why we show up every day. The culture reflects that shared commitment in the best way: collaborative, rigorous, and truly motivated by the impact we make together. – Andre Richardson, Consulting

I knew my position here would be more than just a job. Every day is a new, exciting challenge to solve, and I get to go home knowing that the work I am doing is having a positive impact on the world. – J Esteves, R&D