Project Engineer I

MARS Energy Group; Rocklin (CA); On-site; USD 44,000 - 55,000; Full time

Benefits offered by this job

Medical, Dental, Vision Insurance

Company-paid Life and AD&D Insurance

401(k) Retirement Plan with Company @

Paid Time Off (PTO)

Paid Holidays

Professional growth opportunities

Job summary

MARS Energy Solutions in Rocklin, CA is hiring a Project Engineer I to support solar PV, BESS, and EV infrastructure projects. The role offers a balanced mix of design work and field execution, reporting to a Senior Project Engineer and supporting the Project Manager.

Recent graduates are encouraged to apply. The role requires 0–4 years in related engineering fields, a Bachelor’s in Electrical or Civil Engineering (ABET a bonus), and familiarity with Helioscope, AutoCAD, PVSyst, and Procore.

Qualifications

• 0–4 years in solar PV, construction, or related engineering field.
• Internship or academic project experience acceptable for entry-level.
• ABET-accredited degree a plus.

Responsibilities

• Support early-stage design — preliminary PV layouts in Helioscope and AutoCAD.
• Produce CAD design work and assist with PE-stamped sets.
• Assist with design-construction submittals; coordinate with Procore.
• Support utility interconnection and AHJ permitting processes.
• Site visits to verify installations align with IFC drawings.
• Maintain as-built redlines and assist project closeout.

Skills

Helioscope

PVSyst

AutoCAD

Procore

Field work

Reading drawings

Education

B.S. Electrical Eng

B.S. Civil Eng

ABET accreditation

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Full Time Rocklin, CA, US

Salary Range: $32.00 To $40.00 Hourly

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 the Project Manager, this role carries a genuine 50/50 split between design work and time in the field, performed with guidance and review. Recent graduates are encouraged to apply.

Key Responsibilities

Project Engineers split their time roughly evenly between design and field execution, reporting to a Senior Project Engineer in support of the Project Manager.

• 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

• Comfortable splitting time between design/office and active field work — not a pure desk job
• 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 elevate when the field conflicts with approved drawings

Physical Demands & Work Environment

• Walk active sites, climb ladders/stairs, lift up to 50 lbs.
• Frequent travel to project sites; work outdoors in varying conditions
• Medical, Dental, and Vision Insurance
• Company-paid Life and AD&D Insurance
• 401(k) Retirement Plan with Company Match
• Paid Time Off (PTO)
• Paid Company Holidays (x6)
• Opportunities for professional growth and career development