Portfolio Manager

About Diamond Infrastructure Solutions is an infrastructure-focused company strategically located in the U.S. Gulf Coast –
the heart of U.S. manufacturing
. The company is comprised of 2700 employees and contractors that are driven by a customer-first entrepreneurial mindset
, offering expertise and turn‑key services to more than 70 on‑site and off‑site customers across the U.S. Gulf Coast. The company is built upon the foundation of Dow’s world‑leading operational excellence to deliver best‑in‑class services and reliability.

Our vision is to be the trusted leader in infrastructure—delivering reliable, sustainable, and cost‑effective solutions that adapt to our customers’ evolving needs. At Diamond Infrastructure Solutions, we empower growth across the U.S. Gulf Coast by providing strategic land access and dependable services. Backed by world‑class assets, scale, and expertise, we help our partners optimize costs, accelerate their ambitions, and achieve lasting value through every project and partnership.

Our People are the integral ingredient to our culture of employee ownership and excellence‑driven core values. An unwavering focus on employee & asset safety and the generational impact to our environment & surrounding communities is critical.
Together we will strategically deliver Focused Growth while positioning the organization to leverage industry megatrends for sustained success.

About This Role
Portfolio Manager

This role provides a unique opportunity to directly influence Diamond’s Energy business by supporting existing Tenant contracts, participating in the development of new Tenant opportunities, and defining the strategy for Diamond’s Energy services and assets.

Diamond provides site services to site tenants and fence line partners at 5 sites located on the U.S. Gulf Coast. The Portfolio Manager role is the focal point for interaction between Diamond’s Business Development group, the functional Tech Centers, Energy Commercial Managers, and the associated operational leaders at Diamond’s sites.

• Utilize financial acumen to develop and update pricing formulas, using historical accounting and operational information, balancing service pricing with overall project value and impact.
  • Retrieve, organize, and consolidate historical service delivery costs that are applicable using ECC/DSR.
  • Validate historical service delivery costs used as a basis for pricing.
  • Adjust, as needed, historical service delivery costs to account for non‑routine or abnormal cost variances.
  • Determine when next best alternative or market‑based pricing is appropriate.
• Develop the contractual requirements associated with each service provided to, or received from, potential new tenants.
• Work with functions and site operations contacts to validate data used in establishing service quantity commitments (Contract Quantities) included in site service agreements for new tenants.
• Monitor service financial performance to ensure revenue and margins align with those anticipated when service pricing was established, investigating and initiating resolution for cases of inadequate margin performance.
• Provide support for issue resolution during the monthly, quarterly, and annual closing activities.
• In coordination with contract managers, support annual budgeting and forecasting for tenant and fence line partner service consumption.
• Establish and maintain best practices for all aspects of the portfolios, including implementation, contract language, and pricing strategies.
• Collaborate with the Business Development team to lead the technical feasibility, scoping and development of service offerings.
• Collaborate with Contract Management to identify improvements to existing services or opportunities for new services with existing tenants.
• Collaborate with Operations and the Tech Center to develop and maintain asset strategies, considering industry trends, new technologies, and existing and future service needs.
• The trends in the industry
• New technologies or improvements
• Existing and future service needs (volumes, quality, specification, etc.)
• Unmet tenant needs

• A minimum of a bachelor’s degree or relevant military…