Job Title: Senior Buyer / Planner
Job Description
This contract-to-hire Senior Buyer / Planner role offers the opportunity to own consumables procurement and planning within a lean, high-performing supply chain team in a life sciences manufacturing environment. You will manage end-to-end purchasing and planning for wet chemicals, organic materials, packaging, and plastics, ensuring materials are available to support continuous production. This position is ideal for an experienced life sciences professional who thrives in a fast-paced, onsite environment and can step into an established procurement function and execute with minimal oversight.
Responsibilities
- Manage the procurement and planning of consumables, including wet chemicals, organic materials, packaging, and plastics to support manufacturing operations.
- Translate chemical descriptions, technical specifications, and unit measures accurately to ensure correct purchasing and inventory management.
- Maintain and manage relationships with an established base of domestic and international suppliers, with a heavier focus on domestic partners.
- Process and manage purchase orders in NetSuite ERP from creation through receipt, ensuring accuracy and timely completion.
- Monitor and analyze procurement data, inventory levels, and material usage using advanced Excel tools such as pivot tables and VLOOKUPs.
- Collaborate closely with manufacturing teams to ensure material availability, production continuity, and alignment between supply and demand.
- Support demand planning and inventory analysis to keep supply levels aligned with production forecasts and operational needs.
- Operate within an established supplier network, focusing on execution, maintenance, and communication rather than building new supplier relationships.
- Provide transactional buying support with an analytical approach to procurement data and process improvement.
- Communicate proactively with suppliers and internal stakeholders to resolve issues, manage lead times, and mitigate supply risks.
- Contribute to a fast-paced, collaborative supply chain culture by being responsive, communicative, and reliable.
- Maintain compliance with internal processes and controls related to purchasing, inventory, and ERP transactions.
Essential Skills
- 5-8 years of buying and planning experience.
- Life sciences industry experience, specifically supporting a manufacturing environment.
- Hands-on consumables procurement experience, particularly with wet consumables, chemicals, organic materials, packaging, and plastics.
- Strong analytical mindset with the ability to interpret procurement data and accurately translate technical and chemical material descriptions.
- Proficiency with NetSuite ERP, including the ability to navigate and manage purchase orders and related transactions (strongly preferred).
- Advanced Excel skills, including independent proficiency with VLOOKUPs and pivot tables.
- Proven experience in supplier relationship management, especially with domestic suppliers, and the ability to maintain and communicate with international suppliers.
- Experience in purchase order management, inventory planning, and demand planning within a manufacturing context.
- Strong cross-functional communication skills, with the ability to work effectively with manufacturing teams and suppliers.
- Comfort operating in a fast-paced environment with minimal oversight, demonstrating responsiveness, proactivity, and attention to detail.
- Transactional buying experience combined with an analytical approach to procurement and supply chain data.
- Bachelor's degree preferred.
Additional Skills & Qualifications
- Experience with chemical, organic, or wet consumable procurement in a life sciences setting.
- International supplier management experience.
- Master's degree.
- Experience at a life sciences company with a strong consumables supply chain, such as large-scale sequencing or diagnostics organizations.
- Packaging and plastics procurement experience.
- Organic chemistry knowledge or familiarity with chemical materials and terminology.
- Strong analytical and data-driven mindset applied to procurement and inventory decisions.
- Demonstrated ability to support a manufacturing environment within life sciences.
- Experience working in a lean, high-performing supply chain team.
- Comfort using Excel for advanced analytics, including VLOOKUPs, pivot tables, and related functions.
Job Type & Location
This is a Contract to Hire position based out of San Diego, CA.
Pay and Benefits
The pay range for this position is $45.00 - $55.00/hr.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully onsite position in San Diego,CA.
Application Deadline
This position is anticipated to close on Aug 17, 2026.
About Aston Carter
Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe. Specialized in accounting, finance, human resources, talent acquisition, procurement, supply chain and select administrative professions, we extend the capabilities of industry-leading companies. We draw on our deep recruiting expertise and expansive network to meet the evolving needs of our clients and talent community with agility and excellence. With offices across the U.S., Canada, Asia Pacific and Europe, Aston Carter serves many of the Fortune 500. We are proud to be a ClearlyRated Best of Staffing® Platinum Award winner for both client and talent service.
The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.
If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email astoncarteraccommodation@astoncarter.com for other accommodation options.
San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.
Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.