Senior Buyer Construction

Senior Buyer Construction - Northampton hybrid role

About us

Infinis is the UK's leading renewable energy generator of low-carbon power from captured methane. We capture methane gas from landfill sites and disused mines and convert it into electricity. Our expertise also extends to solar farms and battery energy storage (BESS) technology.

This work helps reduce greenhouse gas emissions, which supports the transition to net zero. We're driving innovation and environmental responsibility. At Infinis, we're committed to creating safe, sustainable energy solutions for a greener future.

This is your opportunity to thrive in a forward-thinking company. With the demand for renewables set to rise, the energy sector offers an exciting opportunity to build a rewarding career.

About the role

We are looking for an experienced
Senior Construction Buyer
to play a key role in sourcing and procurement across our utility-scale
Solar PV, Battery Energy Storage Systems (BESS)
, and
EPC/ICP projects.
In this role, you will support the
whole construction lifecycle
by securing high-quality materials and services, optimising costs, and ensuring timely delivery for our significant renewable energy developments.

Reporting directly to the
Head of Procurement,
you will lead end-to-end supplier sourcing and tendering strategies for construction projects and key components, with a focus on electrical, mechanical and civil packages. You will bring strong negotiation skills, driving cost efficiency while ensuring timely delivery and full compliance with project specifications. You will also oversee contract renewals, evaluate bids, negotiate commercial terms, and monitor supplier performance.

This newly created role is designed to support the company's growth and advance our construction strategy. We are in an
exciting period of transformation
, with a mature pipeline of 'Ready to Build' projects and an ambitious target to construct an additional 300MW of solar and 200MW of BESS over the next 5 years,
representing £250M of investment.

This role is vital to our growth strategy, offering candidates a chance to make a meaningful impact on our ambitious renewable energy projects and future expansion.

Location:
This is a hybrid role with the expectation that
you will work 2 days a week at our Northampton headquarters,
fostering collaboration and flexibility.

Key Responsibilities

Strategic Procurement

• Develop and execute procurement
  construction strategies
  for
  Solar PV and BESS projects
  , covering civils, electrical, and mechanical scopes
• Lead detailed commercial
  negotiations & supply agreements for key materials and components
  , ensuring cost efficiency, competitive pricing at a line-item level
• Conduct market research to
  track pricing trends
  , material availability, and technology developments in the renewable energy sector
• Prepare and
  manage RFQs and tenders
  for major equipment and construction services
• Prepare
  cost planning and commercial analysis
  for major construction packages, ensuring alignment with project budgets and financial targets
• Analyse large sets of
  commercial, supplier, and market data
  to create sourcing strategies and negotiation positions for specific projects and bids
• Maintain cost databases and develop dynamic Excel models to support budgeting and forecasting

Supplier Engagement & Management

• Identify and qualify suppliers specialising in Solar PV and BESS systems
• Evaluate bids for cost, technical compliance, and delivery schedules and quality
• Build dynamic cost models, pivot tables, macros, and dashboards to monitor pricing trends, cost drivers, and supplier performance
• Build strong supplier relationships to secure competitive terms and mitigate supply chain risks
• Monitor and assess supplier performance against agreed-upon KPIs and SLA's, implementing corrective actions and escalations to mitigate risks

Commercial & Contract Management

• Negotiate supplier contracts
  and commercial terms with a strong focus on contractual accuracy and risk management,
  collaborating closely with the Legal team
  to secure compliant and favourable agreements
• Ensure procurement decisions reflect the
  total cost of ownership
• Work closely with our
  internal construction and finance teams
  to maintain transparency of forecast expenditures

Risk & Compliance

• Ensure compliance with ESG, sustainability, HSQE, and industry standards.
• Be sustainability-focused on all workstreams to commit to a reduction in emissions from key suppliers and internal reporting targets

About you

• Proven experience as a
  Senior Buyer
  in the
  construction, engineering, power generation or renewable energy industry
• Knowledge of Solar & BESS products, electrical equipment, construction materials, and EPC project workflows
• CIPS Level 5
  (Advanced Diploma) qualification required as a minimum
• Experience with global sourcing and managing long-lead items
• Strong communication with stakeholder management, with the ability to engage with both technical and non-technical stakeholders
• A solutions-oriented mindset with the ability to work under pressure and manage complex issues
• You take a proactive and organised approach to your work and confidently resolve challenges
• Familiarity with Maximo and Power BI is advantageous, along with Advanced MS Excel skills for data analysis and cost modelling to evaluate supplier quotations and comparison sheets
• Must live within a
  commutable distance of Northampton to work 2 days a week
  in the office

What we offer

• Competitive salary
  with an annual bonus of up to 25% paid annually
• Domestic solar, battery, and EV charger funding scheme
• Employee Assistance Program
  that offers virtual GP appointments
• Cycle-to-work scheme
  and
  eye care vouchers
• Community volunteering days
  to give back to the local area
• 25 days
  of annual leave,
  plus bank holidays
• Company pension scheme
  with
  6% employer contribution
• Sick pay
  eligibility after a qualifying period

We value
diversity and inclusion
and encourage applications from
underrepresented groups
. We believe diverse teams build better solutions.

Recruitment Notice for Agencies

We work with a
Preferred Supplier List
of trusted recruitment partners who comply with
our company's recruitment terms and conditions
. We do not accept unsolicited introductions, and no fees will be applied for direct candidate contacts. We appreciate your understanding and adherence to our recruitment policy.