New

Category Buyer I or II (Inverters, Batteries, Transformers)

Clean Energy & Infrastructure Services

life insurance, vision insurance, flexible benefit account, paid time off, paid holidays, 401(k)

United States, Arizona, Phoenix

Jun 25, 2026

Category Buyer I or II (Inverters, Batteries, Transformers)

Requisition ID

2026-65336

# of Openings

Candidate Search Category (Portal Searching)

Procurement

Service Line (UKG) : Name

WZK-Wanzek Construction, Inc.

Overview

The Category Buyer I or II is responsible for leading and acting as the point of contact for end-to-end purchasing life cycle of materials including planning and executing purchase orders, determining transport for these orders on/off job site, executing agreements, expediting material and resolving quality and invoice issues. This position will ensure materials are purchased at the lowest total cost consistent with considerations of quality, reliability of source, and urgency of need. The Category Buyer partners with the Category team to build and leverage category strategies and manage supplier performance. Responsible for tactical purchasing activities of assigned commodities while establishing and maintaining excellent vendor and internal customer relationships. Follows, improves, and maintains processes and systems utilized by the company to perform buying related tasks and functions.

Company Overview:

MasTec Renewables, comprised of Wanzek Construction, IEA Constructors, and White Construction, combines over 20 years of experience in renewable energy construction. Depending on your position and project, you may work for one or more of our companies over your career with us. Join one of the largest construction firms in the country (Engineering News-Record [ENR]: #1 in Power, #17 Top 50 Domestic Heavy Contractors, #20 Transportation Contractor).

We embrace diverse perspectives among our employees and across all levels of our business, including our suppliers, community partners, and clients. We have built a multidimensional workforce that brings valuable differences in perspectives, work ethics, and approaches to our organization. By collaborating across departments, we foster innovation and encourage everyone-from interns to executives-to share their ideas and make an impact. Our goal is to create a respectful work environment where all employees feel valued, included, and empowered to become innovative leaders in our industry.

The MasTec Renewables market sector is part of the MasTec Clean Energy & Infrastructure (CE&I) business segment. The CE&I segment generates over $4.5 billion in annual revenue, providing construction services across our renewables, industrial, infrastructure, and general building operating groups. Sustainability and safety are foundational to our culture and influence everything we do.

MasTec, a minority-owned Fortune 500 company, has shaped the construction industry for more than 90 years. With over 35,000 employees and 400 offices nationwide, we provide flexibility and career growth in dynamic work environments. Join one of the largest construction firms in the country (Engineering News-Record [ENR]: #1 in Power, #16 Top 50 Domestic Heavy Contractors, #13 Transportation Contractor).

Responsibilities

Essential Job Functions:

Develop plans, generate, adjust and expedite purchase orders based upon requisitions, project insights, interpretation of drawing take-offs, billing of materials (BOM), and inventory strategies

Lead initiatives to expedite tracking and monitoring of purchase orders in the most efficient and effective manner, keeping informed and mitigating any problems and delays, while communicating any impacts or constraints to the Planner and Project Manager
Distribute and facilitate day to day communication with suppliers to ensure on time delivery, system data integrity and ordering parameters for individual materials
Communicate site access maps to suppliers along with all relevant transport and communication information to suppliers
Ensure suppliers are in compliance with safety, quality, and performance requirements
Build strong knowledge of assigned category, inclusive of manufacturing process, key supplier capabilities, pricing, and should cost models
Keep abreast of new and emerging technologies related to Procurement practices and assigned category
Review spend trends and market projections to support sourcing decisions and maintain competitiveness for assigned commodities
Facilitate meetings internally and externally to manage, track, and expedite orders
Maintain clear communication channels with internal stakeholders regarding deviation from best practices if project delivery dates are at risk of being compromised or delayed
Verify requisition data and resolve discrepancies through detailed communication with requisitioners and suppliers
Participate in vendor negotiations and identify deviations from standard contract terms
Coordinate with internal stakeholders including legal, commercial services, permitting, insurance, accounting, and preconstruction to ensure contract compliance and proper documentation
Own purchase order book by ensuring data cleanliness, completeness, and reliability of data from requisition to payment of invoice
Oversee vendor submittals related to materials and ensure the processes are being followed in a timely manner and resolve issues as they arise
Provide input to Project Scheduling team for project schedules, including vendor submittal lead times, applicable material lead times, and any changes in schedule for executed purchase orders
Participate in regular business reviews with suppliers to review performance including safety, quality, timeliness, and competitiveness
Maintain procurement data, support KPI reporting, and assist with project closeout and administrative procurement activities
All other duties as assigned

Qualifications

Category Buyer I:

Education and Work Experience Requirements:

Bachelor's degree in Supply Chain Management, Business, Finance or an equivalent combination of education and/or experience
One+ years related experience in purchasing, planning or a related Supply Chain function
Experience within construction industries preferred

Knowledge, Skills and Abilities Required:

Knowledge of construction processes, materials, purchasing processes and procedures
Data analysis and problem-solving skills
Advanced knowledge of Microsoft office suite
Ability to be accurate, precise and follow set procedures and standards
Collaboration, written and verbal communication skills
Ability to travel up to 25%

Category Buyer II:

Education and Work Experience Requirements:

Bachelor's degree in Supply Chain Management, Business or Finance, or an equivalent combination of education and/or experience
Three+ years related experience in purchasing, planning or a related Supply Chain function
Experience within construction industries preferred

Knowledge, Skills and Abilities Required:

Strong knowledge of sourcing strategies and terms and conditions with each supplier and the commodity markets for which you support
Ability to work independently with skills in sound judgement, critical thinking excellent business judgement and strategic thinking
Knowledge of materials, purchasing processes and procedures
Negotiating, organizing, planning, verbal and communication skills
Strong data analysis and problem-solving skills
Advanced knowledge of Microsoft office suite
Ability to read and interpret engineering and technical documents
Ability to be accurate, precise and follow set procedures and standards
Excellent collaboration and written and verbal communication skills
Ability to interact professionally with all levels within the organization and with clients and suppliers
Ability to travel up to 25%

Working Environment:

When visiting jobsites the work environment involves some exposure to hazards or physical risks, which require following basic safety precautions
This work environment may involve moderate exposure to unusual elements, such as extreme temperatures, dirt, dust, fumes, smoke, unpleasant odors and/or loud noises

What's in it for You

Financial Wellbeing

Compensation $70,000 - $103,000 / year, commensurate with experience
Competitive pay with ongoing performance review and merit increase
401(k) with company match & Employee Stock Purchase Plan (ESPP)
Flexible spending account (Healthcare & Dependent care)

Health & Wellness

Medical, Dental, and Vision insurance (plan choice) - coverage for spouse, domestic partner, and children
Diabetes Management, Telehealth Coverage, Prescription Drug Plan, Pet Insurance, Weight Management Drug Discount
Discounted National Gym Membership Network

Family & Lifestyle

Paid Time Off, Paid Holidays, Bereavement Leave
Military Leave, including Benefits Continuation
Employee Assistance Program

Planning for the Unexpected

Short and long-term disability, life insurance, and accidental death & dismemberment
Voluntary life insurance, accident, critical illness, hospital indemnity coverage
Emergency Travel Assistance Program
Group legal plan

Position may be subject to pre-employment screening, which may include background check and drug testing. Accessibility: If you need accommodation as part of the employment process, contact ceicareers@mastec.com. Due to the high volume of applications received, we are unable to respond to individual requests regarding application status. Please log into your candidate profile for up-to-date information.

MasTec, Inc. is an Equal Employment Opportunity Employer. The Company's policy is not to unlawfully discriminate against any applicant or employee on the basis of race, color, sex, sexual orientation, gender identity, religion, national origin, age, disability, genetic information, military status, or any other consideration made unlawful by applicable federal, state, or local laws. The Company also prohibits harassment of applicants and employees based on any of these protected categories. It is also MasTec's policy to comply with all applicable state, federal and local laws respecting consideration of unemployment status in making hiring decisions.

Disclaimer: MasTec and our Subsidiaries will never ask prospective employees for any form of payment or money transfer as part of job application or onboarding. We do not ask prospective employees for information about credit cards or personal passwords, and it does not require applicants to purchase equipment or software. Ensure that all recruiter email addresses end in @mastec.com or @talent.icims.com. If you suspect you are the target of a scam, we advise you to contact your local law enforcement agency and report fraud at https://reportfraud.ftc.gov/.

MasTec Clean Energy & Infrastructure and our subsidiaries do not work with any third-party recruiters or agencies without a valid signed agreement and partnership with the Corporate Talent Acquisition Team.

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Service Line

WZK-Wanzek Construction, Inc.