Lead Preliminary Design Engineer

Overview

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, design-build, and public-private partnerships. 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 one of the nation s top 65 general contractors, and the 3rd ranked solar EPC nationwide. Moss prides itself on a strong entrepreneurial culture that honors safety, quality, client engagement, and employee development.

The Lead Preliminary Design Engineer on our Engineering Services team in Moss s Solar Division will demonstrate a deep understanding of Preliminary Design and oversee the day-to-day technical tasks, including review of owner documents and preliminary project designs to ensure development of engineering design work is accurate, aligned with specifications, and consistent with Moss s standards for our solar energy and battery storage projects.

They will support preconstruction and cross-functional processes by leading new initiatives, focusing on process improvement and value engineering, and providing a critical layer of quality control.

• Review and provide feedback on PE-developed preliminary layouts and project book inputs.

• Ensure preliminary designs comply with the Scope of Work, owner requirements, and internal standards, flag deviations and missing inputs early.

• Drive continuous improvement by integrating lessons learned into preliminary design practices.

• Ensure the selected DC collection approach and preliminary design decisions are aligned with Engineering Services Electrical guidance and applicable standards, flag deviations and unresolved assumptions early.

• Follow all Moss and Engineering Services safety protocols.

• Escalate potential safety risks in project designs or deliverables.

• Own timely completion of the preliminary design package and clean handoffs to downstream teams with clearly documented assumptions and decisions.

• Accurately estimate effort and duration for preliminary design tasks; prioritize review cycles to unblock PE production and meet pipeline/RFP timelines.

• Coordinate with Engineering Services trades to resolve interface conflicts and close open items.

• Maintain organized version control and change tracking for preliminary design deliverables; ensure the current approved set is clearly identified.

• Make cost-aware preliminary design choices that minimize exposure to commercial risks.

• Reduce rework and downstream change orders through scope compliance, clarity of assumptions, and early resolution of ambiguities before handoff.

• Coach and mentor PEs/SPEs on preliminary design standards, workflows, and deliverable quality; provide timely, actionable feedback during reviews.

• Foster effective cross-disciplinary collaboration by clearly communicating decisions, trade-offs, and their rationale.

• Proactively surface resourcing or capability gaps with proposed solutions; support onboarding and upskilling on Preliminary Design workflows and quality checks.

• Contribute to refining Preliminary Design workflows, checklists, and templates to improve team speed, consistency, and handoff quality.

• Bachelor s degree in engineering, technical field, or related discipline.

• Minimum of 3+ years of direct and relevant experience.

• Utility-scale Battery Energy Storage Systems experience is preferred.

• Willingness to travel as needed to support project execution (5%).

• Proficient knowledge of electrical systems, layouts, civil considerations, and AC and DC collection strategies; emphasizes scoping assumptions and early constraints.

• Understands sequencing and hand-offs from estimating preliminary design and downstream partners.

• Recognizes risks early and escalates scope/alignment issues for resolution.

• General budget awareness understands how Preliminary Design scope, materials, and assumptions affect cost and field execution.

• Clearly conveys recommendations, risks, and design changes; makes Preliminary Design decisions visible and traceable.

• Articulates rationale in reviews; ensures key details carry into downstream packages.

• Proficiency in Excel and design/drafting tools for site constraints and layout trade-offs.

• Strong analysis and problem-solving for option evaluation and early conflict resolution.

• Organizes technical data for efficient review of assumptions and decisions.

• Effective written/verbal communication across disciplines and partners.

• Manages time to balance tasks and review cycles against RFP/pipeline timelines.

• Reliable task/project owner; reviews/approves PE outputs with minimal oversight.

• Demonstrate an execution mindset; proactively identify…