Assistant Project Manager-BESS

About the role

COMPANY OVERVIEW Moss is a national privately held construction firm providing innovative solutions resulting in award-winning projects. With regional offices across the United States, Moss focuses on construction management, solar EPC, and design-build. The company's diverse portfolio encompasses a wide range of sectors, including luxury high-rise residential, landmark mixed-use developments, hospitality, K-12 and higher education, justice, solar energy and battery storage, and sports. Moss is ranked by Engineering News-Record as the nation's top solar contractor and one of the top 50 general contractors. Moss prides itself on a strong entrepreneurial culture that honors safety, quality, client engagement, and employee development. Its employees consistently rank Moss as one of the best places to work. POSITION SCOPE AND ORGANIZATIONAL IMPACT The Assistant Preconstruction Manager, BESS supports the early-stage development and execution of utility-scale BESS EPC projects. This role plays a key part in managing RFP responses, coordinating internal stakeholders, facilitating Owner communications, and supporting the Project Manager in key preconstruction deliverables including scheduling, permitting, budgeting, and contract execution. The Assistant Preconstruction Manager role is intended to serve as a developmental step toward becoming a Project Manager, with increasing responsibility and ownership over time. ESSENTIAL JOB DUTIES AND RESPONSIBILITIES Proposal & Client Coordination Act as a central coordinator for RFPs, RFIs, and RFQs-analyzing requirements, developing response strategies, and aligning internal contributors Collaborate with Engineering, Procurement, Estimating, and Operations teams to produce compliant, compelling, and timely proposal documents Maintain and improve a library of reusable proposal content, templates, and pricing assumptions to support efficiency and accuracy in responses Interface directly with clients and proposal stakeholders to clarify deliverables and respond to technical questions Project & Document Support Participate in the development and review of baseline schedules, drawing logs, general conditions estimates, and proposal exhibits Support the coordination of project due diligence activities (e.g., site assessments, geotechnical reports, utility locates) Maintain key documentation including RFI Logs, Preconstruction Budget Logs, Exhibit Trackers, and Proposal Submittals Facilitate and document Owner coordination meetings during preconstruction, escalating issues as needed to the Project Manager Prepare and distribute weekly internal and external reports summarizing progress, open items, and risks Model exceptional customer relations and gather feedback during the preconstruction process. Contract, Budget & Permitting Assistance Assist the Project Manager in the development and review of Limited Notices to Proceed (LNTPs), Early Works Agreements, and Owner contract exhibits Perform preliminary cash flow analysis, tracking schedule implications, early deposits, and procurement lead times Collaborate with the team to support permitting timelines, submittal requirements, and agency communications Help coordinate procurement and resource acquisition timelines aligned with project milestones Team Collaboration & Growth Communicate regularly and effectively across disciplines to ensure clarity on preconstruction tasks, risks, and dependencies Provide input on process improvements, tools, and coordination strategies to increase the effectiveness of the preconstruction team Demonstrate ownership of tasks, proactive follow-up, and readiness to step into larger responsibilities over time Manager and mentor 1-2 preconstruction Project Engineers As an Assistant Project Manager gains experience, they may take on broader responsibilities such as: Leading Owner contract negotiations and strategy alignment Managing cash flow and financial forecasting independently Overseeing end-to-end proposal processes with minimal oversight Driving site due diligence, engineering coordination, and permitting timelines across multiple projects Leading internal teams and mentoring junior staff members EDUCATION AND WORK EXPERIENCE Bachelor's degree in Construction Management, Engineering, business, or related discipline; MBA or technical graduate studies is a plus 3+ years of experience in the utility-scale solar EPC industry or related preconstruction/project support roles BESS experience preferred, but not required Field experienced preferred, but not required Strong organizational and writing skills, with the ability to manage multiple priorities in a deadline-driven environment Proficient in Microsoft Office Suite; experience with Smartsheet, Primavera P6, BlueBeam, or estimating software (e.g., HCSS Heavy Bid) is preferred Excellent interpersonal and communication skills to support cross-functional coordination and external client interaction Attention to detail, critical thinking, and ability