Portfolio Manager

Portfolio Manager

At a glance

Position: Portfolio Manager

Primary Location: Houston (TX, USA),

Texas,

United States of America

Additional Locations: Freeport (TX, USA)Texas City (TX, USA)Hahnville (LA, USA)+ More

Schedule: Full time

Date Posted: 07/14/2026

Job Number: R2067448

Position Type: Regular

Workplace Type: Hybrid or Onsite

About Diamond Infrastructure Solutions ( website opens in a new tab )

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.

*This role is aligned to the Diamond Infrastructure Solutions ("Diamond Infra") company and will be seconded from Dow to Diamond Infrastructure Solutions until January 1, 2027.? At that time, the role will become directly aligned to the Diamond Infrastructure Solutions Company. ?*

About this role

Diamond Infrastructure Solutions has an exciting job opportunity as a Portfolio Manager.

This role provides a unique opportunity to directly influence Diamond's Energy business by supporting existing Tenant contracts, participate in the development of new Tenants opportunities, and by participating in 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 US Gulf Coast. The Portfolio Manager role provides a 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.

Responsibilities

• Utilize financial acumen to develop and update pricing formulas, using historical accounting and operational information considering the next best alternative and balancing service pricing with overall project value/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.

• Develop the contractual requirements associated with each service provided to, or received from, potential new tenants.

• Work with the 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 are aligned with those anticipated when service pricing was established. Investigate and initiate resolution for cases of inadequate margin performance.

• Provide support for issue resolution during the monthly, quarterly, and annual closing activities.

• In coordination with the contract managers, support annual budgeting and annual/monthly 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.

• In collaboration with the Business Development team, lead the technical feasibility, scoping and development of service offering

• In collaboration with Contract Management, identify improvements to existing services or opportunities for new services with existing tenants

• In collaboration with Operations and the Tech Center, participate in the development and maintenance of the asset strategies considering:

• The trends in the industry

• New technologies or improvements

• Existing and future service needs (volumes, quality, specification, etc.)

• Unmet tenant needs

Required Qualifications

• A minimum of a bachelor's degree or relevant military experience at an E6 rank/Petty Officer 2nd Class or higher. MBA preferred.

• A minimum of 6 years of engineering, manufacturing or relevant experience is required.

• A minimum requirement for this U.S. based position is the ability to work legally in the United States. No visa sponsorship/support is available for this position, including for any type of U.S. permanent residency (green card) process.

Preferred Qualifications

• Strong financial acumen with understanding of historical costs and activity-based pricing.

• Familiarity / experience with the structure, language, and/or administration of contracts.

• Familiarity and functional knowledge of, and experience in, Dow site functions such as Energy, Environmental Operations, Site Logistics, EH&S, ES&S, Site Infrastructure, Maintenance, and Analytical

Your Skills

• Communication: Professional communication, encompasses written, oral, visual and digital communication within a workplace context.

• Technical Leadership: Technical leadership refers to guiding and influencing a team or project through expertise, decision-making, and mentorship. It involves setting technical direction and fostering collaboration.

• Financial Acumen: Financial Acumen is a critical skill that refers to the ability to comprehend and apply financial knowledge and insights to make informed decisions. It's the understanding of the financial effects and relationships of various aspects of your business

• Strategic Planning: Strategic planning is an organization's process of defining its strategy, or direction, and making decisions on allocating its resources to pursue this strategy.

• Business Process Improvements: Business process management (BPM) is the discipline in which people use various methods to discover, model, analyze, measure, improve, optimize, and automate business processes. Any combination of methods used to manage a company's business processes is BPM. Processes can be structured and repeatable or unstructured and variable. Though not required, enabling technologies are often used with BPM.

Additional Notes

• Location: Any Diamond Infrastructure Solutions site on the US Gulf Coast (Freeport, Texas City, Seadrift, Plaquemine, or St Charles) or corporate headquarters (Houston)

• Note : This position does not offer relocation assistance

Benefits - What Diamond Infrastructure Solutions offers you

We invest in you.

Diamond Infrastructure Solutions invests in total rewards programs to help you manage all aspects of you: your pay, your health, your life, your future, and your career.?You bring your background, talent, and perspective to work every day. Dow rewards that commitment by investing in your total wellbeing.

• Vibrant network of Employee Resource Groups (ERGs) designed to foster inclusion and belonging. With ten ERGs spanning diverse interests and identities, there's a group for everyone. Employees are encouraged to join and actively participate.

• Equitable and market-competitive base pay and bonus opportunity across our global markets, along with locally relevant incentives.

• Benefits and programs to support your physical, mental, financial, and social well-being, to help you get the care you need...when you need it.

• Competitive retirement program that may include company-provided benefits, savings opportunities, financial planning, and educational resources to help you achieve your long term financial-goals.

• Employee stock purchase programs (availability varies depending on location).

• Student Debt Retirement Savings Match Program (U.S. only).

• Dow will take the value of monthly student debt payments and apply them as if they are contributions to the Employees' Savings Plan (401(k)), helping employees reach the Company match.

• Robust medical and life insurance packages that offer a variety of coverage options to meet your individual needs. Travel insurance is also available in certain countries/locations.

• Opportunities to learn and grow through training and mentoring, work experiences, community involvement and team building.

• Workplace culture empowering role-based flexibility to maximize personal productivity and balance personal needs.

• Competitive yearly vacation allowance.

• Paid time off for new parents (birthing and non-birthing, including adoptive and foster parents).

• Paid time off to care for family members who are sick or injured.

• Paid time off to support volunteering and Employee Resource Group's (ERG) participation.

• Wellbeing Portal for all Dow employees, our one-stop shop to promote wellbeing, empowering employees to take ownership of their entire wellbeing journey.

• On-site fitness facilities to help stay healthy and active (availability varies depending on location).

• Employee discounts for online shopping, cinema tickets, gym memberships and more.

• Additionally, some of our locations might offer:

• Transportation allowance (availability varies depending on location)

• Meal subsidiaries/vouchers (availability varies depending on location)

• Carbon-neutral transportation incentives e.g. bike to work (availability varies depending on location)

Diamond Infrastructure Solutions is an Equal Employment Opportunity employer and is committed to providing opportunities without regard for race, color, religion, sex, including pregnancy, sexual orientation, or gender identity, national origin, age, disability and genetic information, including family medical history. We are also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, you may call us at 1-833-My Dow HR View phone number on click.appcast.io) and select option 8.