The Company
OnSite Energy is a locally-owned electrical contractor with offices in Bozeman and Missoula, Montana specializing in solar electric (photovoltaic) and energy storage project development, design, and installation. OnSite Energy is a Certified B Corporation that is fully committed to using business as a force for good, meeting the highest standards of verified social and environmental performance.
Position Description
OnSite Energy is looking for an enthusiastic, positive, self-motivated individual to join our company as an Assistant Project Manager / Project Manager.
This role is designed as a growth-oriented project management position supporting the execution of residential and commercial solar and energy storage projects. Successful candidates will initially onboard as an Assistant Project Manager, with a structured pathway toward promotion into a Project Manager role based on prior experience, demonstrated competency, and performance.
In the Assistant Project Manager phase, this role will focus on project coordination, permitting, procurement support, scheduling, documentation, and operational logistics. As experience and proficiency are demonstrated, responsibilities will progressively expand into full project ownership including budget management, customer communication, project forecasting, and team leadership.
This position averages 40 hours per week and requires minimal travel to jobsites. This is an in-office role based in our headquarters in Bozeman, Montana, reporting directly to the Senior Project Manager. This role is ideal for candidates seeking long-term career growth in project management while maintaining work-life balance and minimal travel requirements.
Essential Functions - Assistant Project Manager
- Support execution of Commercial and Residential Solar projects
- Assist with project scheduling, logistics coordination, and resource planning
- Apply for permits and interconnection applications
- Support materials procurement and purchasing workflows
- Maintain project documentation and CRM records within HubSpot
- Organize project files, budgets, drawings, permits, and closeout documentation
- Coordinate with sales, design, field crews, subcontractors, and admin staff
- Track project milestones and support project closeout activities
- Conduct or assist with site visits, design confirmation meetings, and project logistics
- Provide field support and troubleshoot logistical issues as needed
Essential Functions - Project Manager (Progression Role)
- Independently manage project budgets, scope, schedule, and profitability
- Own client communication and customer expectations throughout project lifecycle
- Identify project risks, priorities, deadlines, and strategic execution plans
- Lead project kickoff, debrief, and schedule meetings
- Develop and improve departmental processes, best practices, SOPs, and operational systems
- Oversee project forecasting, financial performance, and resource allocation
Previous Experience and Required Skills
We are seeking candidates with 2–5+ years of professional experience in construction, project coordination, project management, or related operational roles. Experience working for a General Contractor, Electrical Contractor, or specialty subcontractor is strongly preferred.
Prior solar industry experience is helpful but not required. We are happy to train candidates with strong construction or subcontractor experience from adjacent trades.
Ideal candidates will demonstrate:
- Strong organizational and time management skills
- Excellent communication and client-facing professionalism
- Ability to manage multiple priorities and deadlines independently
- Familiarity with project scheduling, budgeting, and resource planning
- Comfort learning and using software systems including CRM/project management tools
- Desire to grow into increasing project ownership and leadership responsibility
Candidates with prior project management experience may be considered for an accelerated transition into full Project Manager responsibilities.
Compensation and Benefits
Compensation will be aligned with starting level, experience, and demonstrated qualifications. Candidates hired into the Assistant Project Manager phase will be eligible for compensation review and adjustment upon transition into full Project Manager responsibilities. This is a full-time, salaried position averaging 40 hours per week. Benefits include a flexible schedule, health insurance coverage, paid time off (with extra accrual for weeks exceeding 40hrs - comp/flex time), parental leave, a company-matched 401k retirement account, and AFLAC and HSA programs. OnSite Energy is committed to employee development through training, advancement opportunities, and industry accreditation support.
OnSite Energy is an equal opportunity employer. All qualified applicants will receive consideration for
employment without regard to race, color, religion, gender identity and/or expression, sexual
orientation, national origin, veteran status, and other protected status as required by applicable law.