Project Engineer I Location: Rocklin, CA (Remote Eligible – U.S.-Based Candidates)
Position Summary:
MARS Energy Solutions is seeking a Project Engineer I to support the design and execution of solar PV, BESS, and EV infrastructure projects. Reporting to a Senior Project Engineer and supporting Project Managers, this role combines technical design work with occasional field support, all performed under guidance and review. Recent graduates are encouraged to apply.
Key Responsibilities:
- Support early-stage design - preliminary PV layouts and stringing concepts in Helioscope and AutoCAD - feeding the engineering team's basis of design
- Produce CAD design work including line-side tap detail drawings, collaborating with the Engineering Director and field operations team on PE-stamped sets
- Support drawing package revisions through design and construction to an approved-for-construction set
- Process submittals and RFIs through Procore - no material installed without an approved submittal, no field change on a verbal approval
- Support procurement accuracy and vendor coordination against the construction schedule
- Provide technical support for utility interconnection and AHJ permitting, including technical responses and supporting the path to PTO
- Support Methods of Procedure (MOPs) for outage and tie-in work
- Conduct site visits to verify installation conforms to IFC drawings and support crews at key milestones
- Support pre-energization documentation in adherence with the MARS Build Standards
- Support commissioning - DC string testing, IR survey coordination, and deficiency tracking
- Maintain as-built redlines in Procore and photograph concealed work prior to cover
- Own project closeout coordination to the MARS “O&M Ready” standard, with full turnover documentation
- Assist Business Development with pre-contract due diligence and site assessments
Experience & Education:
- 0–4 years in solar PV, construction, or a related engineering field; internship or academic project experience acceptable for entry-level applicants
- Performs the responsibilities above with guidance from the Senior Project Engineer; independence grows with experience
- Bachelor's Degree in Electrical Engineering, Civil Engineering, or a related technical field, ABET accredited degree a plus.
Skills, Knowledge & Abilities:
- Working knowledge of Helioscope, PVSyst, AutoCAD, and Procore
- Understanding of NEC and solar PV components; California Electrical Code a plus
- Able to read construction drawings, structural plans, and single-line diagrams
- Understands that deviations require documented engineering disposition - verbal approvals do not count
- Strong communication across clients, contractors, utilities, and AHJs; willing to stop work and escalate when the field conflicts with approved drawings
Physical Demands & Work Environment:
- Ability to work in both office and active construction site environments.
- Prolonged periods of sitting, computer work, and reviewing technical documents.
- Ability to walk project sites, climb stairs and ladders, and navigate uneven terrain.
- Ability to occasionally lift and carry up to 50 pounds.
- Travel to project locations and work outdoors in varying weather conditions as needed.
- Ability to wear required PPE and safely work around active construction operations.
Benefits & Perks:
- Medical, Dental, and Vision Insurance
- Company-paid Life and AD&D Insurance
- 401(k) Retirement Plan with Company Match
- Paid Time Off (PTO)
- Six Paid Company Holidays
- Opportunities for professional growth and career development