Senior Buyer

What if the work you did every day could impact the lives of people you know Or all of humanity

At Illumina we are expanding access to genomic technology to realize health equity for billions of people around the world. Our efforts enable life-changing discoveries that are transforming human health through the early detection and diagnosis of diseases and new treatment options for patients.

Working at Illumina means being part of something bigger than yourself. Every person in every role has the opportunity to make a difference. Surrounded by extraordinary people inspiring leaders and world changing projects you will do more and become more than you ever thought possible.

Internal Title: Sr Buyer/Planner

Position Summary

The Senior Buyer / Planner is responsible for managing end-to-end procurement and planning activities to ensure timely cost-effective and high-quality supply of materials and services. This role combines operational execution with advanced supply chain analytics partnering cross-functionally with Engineering Planning Quality and Operations to drive supply continuity data-driven decision-making and process improvements.

The role requires strong analytical capability supplier management expertise and the ability to influence stakeholders through insights that improve business outcomes.

Key Responsibilities

Procurement & Planning Operations

• Manage purchase requisitions purchase orders and change orders to ensure accurate and timely execution
• Coordinate with Planning and Manufacturing to support demand fulfilment and inventory optimization
• Maintain data integrity in procurement systems (e.g. SAP Ariba ERP/MRP systems)
• Support volume planning and material availability to meet production schedules

Supply Chain Analytics & Insights

• Analyze supply chain data to identify trends risks and cost drivers across materials and suppliers
• Develop and maintain dashboards and reports (e.g. Excel Power BI) to support decision-making
• Perform demand inventory and supply planning analysis to improve forecast accuracy and inventory health
• Conduct root cause analysis on supply disruptions shortages and excess inventory
• Provide data-driven recommendations to optimize procurement planning and supplier performance
• Support scenario planning and modeling to evaluate supply chain risks and opportunities

Supplier Management & Performance

• Manage supplier relationships for direct materials with low to medium complexity
• Monitor supplier performance using KPIs and scorecards
• Work with suppliers and Quality teams to resolve delivery and quality issues
• Conduct supplier research and support onboarding of new suppliers

Cross-Functional Collaboration

• Partner with Engineering Planning Quality and Operations to align procurement activities with business needs
• Act as a data-driven advisor to stakeholders on supply risks inventory strategies and operational trade-offs
• Support cross-functional initiatives to improve supply chain efficiency and continuity

Data Analysis & Continuous Improvement

• Integrate data from multiple systems (ERP forecasts supplier data) to generate actionable insights
• Maintain and improve procurement and planning data (e.g. part parameters supplier database quote tables)
• Identify inefficiencies and implement process improvements to enhance operational performance

Risk Management

• Identify potential supply risks using data trends and predictive indicators
• Support mitigation strategies for supply disruptions and demand variability
• Evaluate alternative scenarios to ensure business continuity

Leadership & Communication

• Demonstrate strong communication and stakeholder management skills
• Translate complex data into clear actionable insights for business partners
• Provide guidance and support to junior team members when needed
• Contribute insights to support broader supply chain and procurement strategy

Listed responsibilities are an essential but not exhaustive list of the usual duties associated with the position. Changes to individual responsibilities may occur due to business needs.

Position Requirements

• Bachelors Degree in Supply Chain Business Engineering or related field
• Minimum 5 years of experience in procurement supply chain or analytics-related roles
• Strong analytical and problem-solving skills with experience in data interpretation
• Proficiency in data tools (Excel Power BI) and ERP/MRP systems (e.g. SAP Ariba)
• Experience in demand planning inventory management and supply chain analytics
• Ability to work cross-functionally and influence stakeholders with data-driven insights
• Strong communication skills with the ability to present analysis clearly
• Self-motivated and adaptable in a fast-paced environment

All listed requirements are deemed as essential functions to this position; however business conditions may require reasonable accommodations for additional task and responsibilities.

We are a company deeply rooted in belonging promoting an inclusive environment where employees feel valued and empowered to contribute to our mission. Built on a strong foundation Illumina has always prioritized openness collaboration and seeking alternative perspectives to propel innovation in genomics. We are proud to confirm a zero-net gap in pay regardless of gender ethnicity or race. We also have several Employee Resource Groups (ERG) that deliver career development experiences increase cultural awareness and offer opportunities to engage in social responsibility. We are proud to be an equal opportunity employer committed to providing employment opportunity regardless of sex race creed color gender religion marital status domestic partner status age national origin or ancestry physical or mental disability medical condition sexual orientation pregnancy military or veteran status citizenship status and genetic information. Illumina conducts background checks on applicants for whom a conditional offer of employment has been made. Qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable local state and federal laws. Background check results may potentially result in the withdrawal of a conditional offer of employment. The background check process and any decisions made as a result shall be made in accordance with all applicable local state and federal laws. Illumina prohibits the use of generative artificial intelligence (AI) in the application and interview process. If you require accommodation to complete the application or interview process please contact To learn more visit: The position will be posted until a final candidate is selected or the requisition has a sufficient number of qualified applicants. This role is not eligible for visa sponsorship.