Energy storage is the most exciting area in energy today. Massive amounts of energy storage are required if renewable energy is to take its rightful place on the electric grid. Invinity provides an alternative to the most common type of battery, lithium-ion because the battery technology that works so well in our pockets doesn’t work as well at the grid scale; it wears out, limits use, and even catches fire.
Manufactured as a standardised product in a factory, Invinity’s vanadium flow batteries don’t degrade, won’t catch fire, and can be operated continuously from full charge to full discharge for over 30 years. Invinity has 75 megawatt-hours of its modular battery systems in 82 projects across 15 countries - more than any other company in the space. We’ve deployed the largest flow battery systems in the U.S., Canada, Australia, and the UK, and are supported by the UK's National Wealth Fund, some of the world’s leading institutional investors and our projects are backed by major institutions including the U.S. Department of Energy and the UK Government.
A compelling product and recent funding put Invinity in a position to grow dramatically as it addresses the global imperative for stationary energy storage. Join us as we help transform renewable energy into a stable and dependable contributor to the transition to net zero.
Invinity has operations in the UK, Canada and the U.S. and trades publicly in the UK on AIM and in the U.S. on OTCQX. For more information about us visit our webpage.
Senior Buyer
Location: Central Belt, Scotland (Hybrid)
Department: Supply Chain / Procurement
Contract: Full-time, Permanent
Salary: Competitive, with benefits
Reports to: Purchasing Manager
Join Our Team as a Senior Buyer
This is a key role within the supply chain team, responsible for ensuring the efficient and cost-effective sourcing of goods and materials to support production, facilities and spares requirements. As a Senior Buyer, you will manage supplier relationships, negotiate contracts, and drive cost savings while maintaining quality and delivery standards. You will play a critical part in achieving business objectives through effective procurement strategies and inventory control
We’re looking for a proactive and commercially minded Senior Buyer to join our growing supply chain team. In this role, you’ll take ownership of sourcing and procurement activities, ensuring materials are delivered on time, at the right cost, and to the highest quality standards. You’ll play a key part in supporting production and aftermarket operations during an exciting period of growth
Key Responsibilities
Develop and maintain strong supplier relationships to ensure reliability and performance
Negotiate pricing, terms, and contracts to achieve cost reductions without compromising quality or delivery
Monitor supplier performance using KPIs and take corrective actions where necessary
Forecast material requirements for production and spares, aligning with business plans and schedules
Maintain optimal inventory levels to support production while minimising working capital.
Identify and implement cost-saving initiatives within purchasing and supply chain processes
Collaborate with internal teams (Sales, Production, Finance) on planning and forecasting to ensure material availability
Proactively identify supply risks and implement mitigation strategies to ensure continuity of supply
Success Metrics
Cost Savings: Achieve annual procurement cost reductions of 3–5% through negotiation and strategic sourcing
Supplier Performance: Maintain On-Time-In-Full (OTIF) delivery ≥ 95% across key suppliers
Inventory Management: Keep stock levels within agreed parameters to minimise working capital while ensuring availability
Lead Time Reduction: Reduce average supplier lead times by 10% year-on-year
Compliance: Ensure 100% adherence to company procurement policies and quality standards
Core Competencies
Problem Solving Ability to analyse issues and develop practical solutions
Planning & Organising Skilled in prioritising tasks and managing deadlines
Initiative Self-starter with a continuous improvement mindset.
Commercial Awareness Understands market trends and cost drivers
Communication & Collaboration Effective communicator with internal and external stakeholders
Analytical Thinking Uses data to inform decisions and optimise outcomes
Teamwork Works collaboratively to achieve shared goals
Required Education & Experience
Relevant qualification in Procurement or Supply Chain Management (
e.g.CIPS)
Minimum of 5 years’ experience in a procurement or buying role within a manufacturing environment
Strong negotiation and supplier management skills
Solid experience within a Production or Manufacturing environment ideally within both small and large organisations
Desirable
Knowledge of international logistics and trade compliance
Exposure to Lean manufacturing or continuous improvement principles
Chinese Language would be a huge plus but not essential
Personal Attributes
Strong communicator with the confidence to challenge and influence at all levels
Emotional intelligence and someone who can progress problems into solutions
Highly organised with the ability to manage competing priorities in a deadline-driven environment
Commercially astute with a mindset for continuous improvement
Comfortable working independently while also contributing to a collaborative team environment
This role may involve travel potentially to Canada & Asia as well as Europe
