Constellia · Procurement careers
Shape the future of procurement at an employee-owned Neutral Vendor
Constellia is growing its procurement function at a pivotal moment: newly employee-owned, ranked in the Sunday Times 100 three years running, and managing over £400m of spend for public and private sector clients. Three senior appointments, recruited exclusively by Castlefield Recruitment.
About Constellia
Procurement, empowered
Established in 2007, Constellia is a leading procurement solutions provider, managing over £400 million of spend across more than 250 public and private sector organisations.
Through its managed marketplace of more than 4,000 pre-approved suppliers, including micro-SMEs, SMEs and large organisations, Constellia's neutral vendor model creates fair and equal access for suppliers of all sizes. It enables clients to procure goods, works, services and technology across more than 400 subcategories of spend, all through one simple and compliant route to market.
Constellia connects buyers with the right suppliers, enabling them to work together with transparency and efficiency while driving value for money, innovation and measurable social impact. As an employee-owned organisation, it puts people at the heart of how procurement solutions are delivered across the Constellia community.
Employee-owned: powered by people
The majority of Constellia's shares are held in an Employee Ownership Trust for the benefit of all current and future employees. Those who deliver the service have a real stake in its success — and as an employee-owner, so will you.
Three aspects to the service
People
Dedicated procurement specialists who support clients with pre-market engagement, writing specifications and managing contracts, every step of the way.
Platform
A purpose-built, user-friendly Source-to-Pay platform giving full transparency and control of expenditure through real-time data and live Management Information.
Marketplace
An ever-growing marketplace connecting clients with thousands of diverse and local suppliers, from large corporations to micro-SMEs, across 400+ subcategories of spend.
Frameworks
Available to the private sector as a Consultancy MSP and to public sector organisations through multiple fully compliant Neutral Vendor frameworks.
Current opportunities
Three senior appointments
All roles are permanent and full time. There is no closing date: applications are reviewed as they arrive, so early contact with Luis is encouraged.
Operations & People
Senior Procurement Specialist – Operations and People
Lead a team of procurement professionals delivering Constellia's MSP Neutral Vendor Service — building capability, driving performance and creating a culture of ownership and service excellence.
- Salary
- £50,000 – £55,000
- Location
- Nottingham (hybrid – 3 days office, 2 days home)
- Contract
- Permanent, full time
- Reports to
- Head of Operational Procurement
About the role
The Senior Procurement Specialist (Operations, People & Capability) is responsible for the seamless operational delivery of procurement services and for a high-performing, engaged and capable team that consistently delivers excellent outcomes for clients and stakeholders. The role spans procurement operations, workforce planning, resource management, training and development, performance management and continuous improvement.
What you'll do
- Lead, motivate and develop a Procurement Operations team
- Oversee the successful delivery of procurement activity across multiple client accounts and projects
- Monitor workload allocation and resource capacity across the team
- Develop and implement procurement training and capability programmes
- Build and maintain strong relationships with clients, suppliers and key stakeholders
- Support implementation of new technologies, automation, reporting tools and process efficiencies
What you'll bring
- Significant experience delivering end-to-end procurement within a public sector, regulated or complex procurement environment
- Experience leading and developing procurement professionals, including performance management, coaching and mentoring
- Experience of workforce planning and resource allocation within an operational team
- Experience designing and delivering training, coaching or capability development programmes
- Experience managing employee engagement, performance improvement and talent development
- Experience leading operational service delivery teams within a target-driven environment
Full responsibilities, person specification and the employee-ownership values are in the candidate pack.
Governance, Performance & Assurance
Senior Procurement Specialist – Governance, Performance and Assurance
Lead procurement governance, compliance, performance management and operational assurance across Constellia's procurement function — ensuring consistently high-quality, compliant delivery.
- Salary
- £50,000 – £55,000
- Location
- Nottingham (hybrid – 3 days office, 2 days home)
- Contract
- Permanent, full time
- Reports to
- Head of Operational Procurement
About the role
Working closely with the Head of Operational Procurement, you will act as a senior escalation point for procurement, supplier and client-related issues, and lead the development and monitoring of procurement performance measures, management information and quality assurance processes. Success will be measured through compliance outcomes, governance effectiveness, audit performance, quality assurance results, supplier performance, KPI achievement and the timely management of risks and escalations.
What you'll do
- Lead, motivate and develop a Procurement Operations team
- Oversee the successful delivery of procurement activity across multiple client accounts and projects
- Monitor workload allocation and resource capacity across the team
- Lead the development, implementation and continuous improvement of procurement governance
- Act as a senior escalation point for procurement, supplier and stakeholder issues
- Develop, manage and continuously improve procurement performance measures and KPI frameworks
What you'll bring
- Significant experience delivering end-to-end procurement within a public sector, regulated or complex procurement environment
- Experience leading and developing procurement professionals, including performance management, coaching and mentoring
- Experience developing, implementing and maintaining governance, compliance or assurance frameworks
- Experience managing procurement risk, issues, escalations and corrective action plans
- Experience supporting or leading complex, high-value or high-risk procurement exercises
- Experience operating under the Procurement Act 2023 and associated procurement legislation
Full responsibilities, person specification and the employee-ownership values are in the candidate pack.
Defence, Security & Central Government
Secure Procurement Business Partner
Develop and manage strategic procurement relationships across Defence, Security and Central Government clients, with a portfolio of upwards of £150m under management.
- Salary
- £60,000 – £70,000
- Location
- Remote working, with travel to customer sites 2–3 days a month; London office at 120 New Cavendish Street, W1W 6XX
- Contract
- Permanent, full time
- Reports to
- Chief Commercial Officer / Secure Business Director
About the role
The Secure Procurement Business Partner is responsible for developing and managing strategic procurement relationships across Defence, Security and Central Government clients, with responsibility for upwards of £150m under management within their portfolio. Acting as an extension of public sector client procurement teams, you will provide strategic procurement support and commercial guidance throughout the procurement lifecycle, working alongside the Secure operational delivery team.
What you'll do
- Understand client strategic priorities, budgets, transformation programmes and commercial objectives
- Increase stakeholder awareness and adoption of Constellia's Neutral Vendor Model
- Maintain accurate pipeline reporting, client trackers, KPIs and opportunity forecasting
- Maintain knowledge of public sector procurement legislation, regulatory requirements and best practice
What you'll bring
- UK National with the ability to obtain SC clearance
- Significant procurement experience, including supporting MOD, Defence, Security or wider Central Government and Public Sector organisations
- Strong understanding of UK public procurement legislation, processes and governance
- Experience undertaking complex procurement activities, competitive tendering and supplier selection
- Excellent communication, stakeholder management and influencing skills, including presenting to senior and executive audiences
- Experience developing and managing strategic customer accounts
Full responsibilities, person specification and the employee-ownership values are in the candidate pack.
Employee-owned: powered by people
Think and act like an owner
Constellia is a newly established Employee-Owned Trust (EOT), and employee ownership sits at the heart of our culture and long-term ambitions. Our people think and act like owners, taking pride in the contribution they make to the success, reputation and sustainability of the business.
We value people who
- Take an ownership mindset, understanding how their decisions and actions impact the wider business and fellow employee-owners
- Act in the best interests of the company, balancing client delivery with long-term commercial sustainability
- Work collaboratively and inclusively, recognising that success is shared
- Demonstrate integrity and professionalism, operating in an ethical, compliant and transparent way
- Are proactive and forward-thinking, seeking opportunities to improve services and ways of working
- Show accountability and stewardship, treating company resources and relationships with care
- Commit to continuous learning and improvement, contributing ideas and developing their own capability
What it means for you
As an employee-owner, you will play a meaningful role in shaping our culture and supporting sustainable growth, with your contribution directly benefiting the collective success of the business and its employee-owners.
As part of the application and selection process, candidates will be expected to evidence how they meet our employee-ownership values and behaviours — including examples of where they have demonstrated ownership, ethical decision-making, collaboration and a commitment to long-term value, alongside the technical requirements of the role.
Where you'll work
Constellia's office is in Nottingham, with hybrid working (typically three days in the office and two at home) for the Senior Procurement Specialist roles, and remote working with travel to customer sites 2–3 days a month for the Secure Procurement Business Partner, based from Constellia's London office.
How to apply
Talk to Luis first
Castlefield Recruitment is managing these appointments on behalf of Constellia. The adverts are not yet live on the Castlefield job board, so applications and enquiries go directly to Luis Covell, who leads the campaign.
- Get in touchCall or email Luis for an informal, confidential conversation about the roles and Constellia.
- Send your CVEmail your CV with the role title in the subject line. No closing date — Luis reviews applications as they arrive.
- Meet ConstelliaShortlisted candidates are invited to interview. Be ready to show how you meet the employee-ownership values as well as the technical requirements.
Meet your consultant
Luis Covell
Divisional Director – Procurement and Supply Chain
Luis leads Castlefield's Procurement and Supply Chain Division nationally, overseeing a team of consultants delivering interim and permanent recruitment across the public and private sectors.
With over nine years' experience recruiting into this market, he has a wealth of industry expertise and a strong track record in senior and executive appointments and multi-hire campaigns across the NHS, the university sector and local authorities.