Interconnection Project Engineer Jobs (NOW HIRING)

Company Overview
Treaty Oak Clean Energy (Treaty Oak) is a utility-scale clean energy platform headquartered in Austin, Texas, focused on developing, commercializing, constructing, and operating utility-scale solar plus battery storage projects in targeted U.S. energy markets. Our mission is to create a sustainable future by providing clean, low-cost energy solutions to the grid, benefiting energy consumers, communities, and generations to come.
Treaty Oak features an experienced management team with a track record of developing and commercializing 10 GW+ of utility-scale power projects and a collective 100+ years' experience across critical competencies, including power markets, offtake structuring, design, engineering and real estate, with such expertise being put towards our 15+ GW portfolio of utility scale renewable energy projects across the U.S., including 485 MW of in-construction and operational projects.
Treaty Oak is a wholly-owned portfolio company of Macquarie Asset Management (Macquarie), one of the world's largest infrastructure managers with $600 billion under management, pairing Treaty Oak's renewables development expertise with Macquarie's capital backing and global leadership in advancing the energy transition.
The Role
Treaty Oak is seeking a highly motivated and experienced Director, Transmission and Interconnection, to join our team. The successful candidate will demonstrate deep industry knowledge, superior communication skills, and detail-oriented organizational abilities. This role reports to the VP, Transmission and Interconnection and plays a critical part in leading interconnection strategy and execution for utility-scale solar and storage projects across multiple ISO and vertically integrated markets.
Key Responsibilities
• Lead projects through the interconnection process from project inception through Commercial Operation for utility-scale solar and storage projects in ISO markets (SPP preferred) and vertically integrated markets (WECC preferred).
• Evaluate transmission and interconnection strategies, tariffs, integrated resource plans, costs, timelines, queue positions, and processes across a variety of markets; provide strategy and recommendations to project teams.
• Coordinate all interconnection requirements including applications, studies, agreements, and post-IA project execution milestones.
• Negotiate interconnection study results and interconnection agreements with utilities toward favorable project outcomes.
• Lead communication and build relationships with utilities and ISOs; track interconnection progress to ensure timely and cost-effective project completion.
• Identify optimal interconnection locations in target markets based on cross-functional siting criteria.
• Track changes to interconnection tariffs, business practice manuals, and key transmission upgrades in target markets.
• Drive high-involvement participation in stakeholder and regulatory processes, representing the company in proceedings and working groups.
• Manage and coordinate consultant engagement across interconnection and transmission workstreams.
• Apply proficiency in Greenfield development and M&A processes to support project evaluation and acquisition diligence.
• Collaborate on interconnection milestones with cross-functional teams including Development, Land, Legal, Permitting, Finance, Procurement, HV Engineering, and Construction.
• Track milestones in interconnection agreements, security postings, and coordinate utility meetings for project design, engineering, procurement, and construction.
• Ability to read and negotiate complex legal contracts including Interconnection Agreements, Oversight Transfer Agreements, Facility Construction Agreements, Engineering and Procurement Agreements.
• Independently perform injection capacity studies, review powerflow cases, analyze contingency analysis results using a powerflow software
Education and Qualifications
• 8-10 years of relevant experience in interconnection, project development, or transmission planning.
• Experience at an IPP, utility, ISO/RTO, or consulting firm is required.
• Bachelor's degree in engineering required.
Technical Skills
• Proficient in one of PSSe, PSLF, PowerWorld, TARA
• Demonstrated experience submitting projects into interconnection queues and executing LGIA processes.
• Familiarity with OASIS/OATI and atleast one economic modeling software (UPLAN,Promod, Probe or PLEXOS)
Our Values
These five fundamentals guide how we achieve value:
• Integrity: We do what we say we are going to do.
• Collaboration: We know that we are better together.
• Ambition: We embrace challenge and excellence.
• Adaptability: We find solutions and never quit.
• Safety: We effectively identify and manage risk
Employee Benefits
• The salary for this position is highly competitive and commensurate with experience.
• We offer competitive benefits, including unlimited paid time off, paid holidays, cell-phone stipend, 401K, Life Insurance and a fully paid health benefits plan for employees, including Medical, Dental, and Vision.
Treaty Oak is an equal opportunity employer. We celebrate diverse backgrounds and thoughts and welcome everyone to apply for employment with us. We are committed to fostering an environment that is inclusive, transparent, and collaborative. Mutual respect is central to how Treaty Oak operates, and we believe the best solutions come from diverse perspectives, experiences, and skills. We embrace our differences and know that we are stronger working together.
Department Transmission and Interconnection Locations Treaty Oak Clean Energy Headquarters Remote status Hybrid