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Salary
$127k – $158k per year
Location
Hybrid (Denver, United States)
Seniority
Senior

Confirmed on the employer's own hiring board on Oct 13, 2026. First seen by Alion on Oct 12, 2026.

Overview
Company
Impact
Profile match

RES

RES is a British renewable energy company that develops, builds, operates and maintains wind, solar, energy storage, green hydrogen and transmission projects, with its global headquarters in Kings Langley, Hertfordshire. Founded in 1981 and owned by the McAlpine family, it describes itself as the largest independent renewable energy company, working in about 24 countries and having delivered more than 27 GW of renewable projects for itself and third-party owners. It hires solar and battery storage field service technicians, electrical maintenance technicians, control centre supervisors, business development managers and finance professionals.

Description

We are committed to building a workplace where everyone feels heard and respected, and extending our culture of care so that every individual can reach their full potential. We want you to have a sense of belonging and feel valued for your contributions and the perspectives you bring.

Summary:

The Sr. Engineer IV - Solar Engineering provides solar PV performance and design expertise on utility-scale solar and solar plus storage projects during the development, design, construction, and commissioning phases.

This role will be hybrid requiring a minimum of 3 days in office.

Requirements:

  • Serves as a lead Solar Engineering subject matter expert for internal departments, including development, procurement, construction, commissioning, and engineering (civil, electrical, SCADA, and engineering delivery).
  • Leads the evaluation and resolution of complex technical issues with clients, developers, engineers, procurement, subcontractors, and construction. Communicates material risks and recommendations to leadership.
  • Drafts, reviews, and approves contracts, exhibits, scopes of work, and technical documentation related to design, energy yields, commissioning, testing, and performance.
  • Leads analysis of plant and equipment performance using SCADA, MET, inverter, tracker, meter, and DC collection data to identify underperformance, data-quality issues, and likely root causes.
  • Develops and maintains engineering data structures, equipment hierarchies, mappings, and validation workflows that connect design, commissioning, SCADA, and performance information.
  • Leads technical roles with clients, internal leadership, and procurement on technical items that inform commercial design decisions related to risk management.
  • Coordinates engineering priorities, assignments, subconsultant activities, and progress to maintain project schedules, quality requirements, and conformance with contract documents. Leads technical feedback to clients and subcontractors based on the review of external design documentation, including design basis, overall site plans, energy models, contractual exhibits, and performance test results.
  • Works closely with clients and construction teams to guarantee delivery of a quality PV system that meets contractual expectations.
  • Generates and responds to design RFIs related to design and project performance.
  • Leads the creation and continuous improvement of team templates, tools, processes, scripts, calculators, visualizations, technical specifications, analysis methodologies, test procedures, and standardization and automation of workflows.
  • Provides leadership, coaching, and mentoring to the solar engineering team.
  • Coordinates with Development on preliminary layouts, technology assessments, and basis of design. Drafts, reviews, and approves standard processes that impact team templates and workflow.
  • Attends work regularly and punctually, as scheduled or expected.
  • Complies with Employee Handbook, Code of Conduct, and Company Policies & Procedures.

Additional Responsibilities:

  • Presents, supports, and leads-by-example with a safety and quality-oriented attitude.
  • Provides support to construction during the construction and commissioning phases.
  • Reviews work instructions periodically to ensure compliance with industry and client standards.
  • Developsnew methods and standards for Group design activities.

Safety:

  • Follows safety and security procedures and determines appropriate action. Reports potentially unsafe conditions and uses materials and equipment properly.

Qualifications:

  • Bachelor's degree in Engineeringor a related field of study required. Master’s degree preferred.
  • 8or more years of progressive experience, including utility-scale PV engineering and technical expertise related to site feasibility, energy modeling, major equipment selection, and site layoutisrequired.
  • Ability to travel domestically and internationally 5 to 15% required.
  • Must possess a valid Driver’s license.
  • Strong oral and written skills.
  • Technical writing: Drafting reports, papers, and assessments to a high standard
  • Ability to communicate issues and to communicate complex technical issues to peers across internal departments, suppliers and clients, and a non-technical audience as required.
  • Clear and concise writing.
  • Negotiation skills.
  • Interpersonal skills, including the ability to work well in a team environment.
  • Ability to organize and prioritize work. Project management and time management skills, including balancing multiple Projects under tight deadlines and establishing and maintaining good relations with internal team members and clients.
  • Ability to think analytically.
  • Advanced /Expert level Knowledge in:
  • PV plant performance analysis, energy modeling, expected-versus-actual evaluation, uncertainty analysis, and regression methods.
  • Engineering review of equipment hierarchies, design drawings, SCADA tags, data mappings, and large time-series datasets to support performance diagnostics and project decision-making.
  • PV Plant Capacity and Operational Testing
  • National and international codes and standards applicable to PV design, construction, commissioning, and testing, including NEC, NFPA, ASTM, IEC, IBC, ASCE, and NETA requirements. PV Electrical Design
  • Design for Constructability
  • Installation and Application
  • Solar Industry best practices
  • Major equipment specification, selection, and application, including modules, inverters, trackers, MET stations, meters, SCADA systems, and DC collection equipment.
  • Ability to lead the team members and advise clients regarding performance analysis, solar Project design/development, module/inverter/tracking system technology selection.
  • Ability to lead the team on risks and opportunities for incorporating new technologies into PV designs and performance modeling.
  • Experience with Design Software:
  • Autodesk AutoCAD Civil 3D
  • PV simulation software PVsyst,SAM, PVfarm, and Solar Resource Compass
  • Global Mapper or GIS software
  • Python-based data analysis and automation, including processing, validating, visualizing, and reporting large engineering and time-series datasets.Statisticsincluding uncertainty analysis and regression models.
  • MS Office (Excel, Word, Outlook, etc.)
  • Functional competencies include accountability, attention to detail, customer focus, prioritization, and continuous improvement.

Anticipated base salary range:$127,000 - $158,000

The final agreed upon compensationis based on individual education, qualifications, experience, and work location. This position is bonus eligible.

RES offers benefits that are effective first day of employment. These benefits include the following:

  • Medical, Dental and Vision
  • Health Savings Account with employer contribution
  • Flexible Spending Accounts
  • 4x pay Basic Life and Voluntary Life
  • Short and Long TermDisability
  • Accident, Hospital, and Critical Illness
  • 401 (k) plan with 6% company match
  • 4 weeks Paid Time Off (PTO) and 10 Paid Holidays
  • Tuition Reimbursement and Green Car Reimbursement
  • Volunteer and Charity Matching
  • Paid Parental Leave and Paid Sabbatical Leave
  • Employee Referral Bonus
  • Employee Discounts and Wellness programs
  • Wellness Reimbursement

Physical requirements and environment:

The work environment and physical demands characteristics are representative of those the employee encounters while performing the essential functions of this job. Reasonable accommodationsmay be made to enable individuals with disabilities to perform the essential functions.

Rarely: Climbing, crouching, kneeling, pulling/pushing/lifting between 5-15lbs., and stooping are required.

Occasionally: Carrying 5-15lbs., gripping, handling, pinching, and walking are required.

Frequently: Standing is required.

Constantly: Reading, grasping, hearing, reaching, vision, repetitive motion, and sitting isrequired.

Rarely exposed to extreme cold, heat, and humidity, and wet climates, in the working environment.

Occasionally exposed to noise and hazards in the work environment.

We maintain a drug-free workplace. Candidates will be required to pass a pre-employment background investigation and drug test as a condition of employment.

RES is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws.

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