Advance Your Career.
Design Tomorrow’s Power.
At Castillo Engineering, our engineers grow faster. Our close-knit, supportive culture provides real project ownership, direct access to leadership and a clear structured career advancement pathway. By combining advanced technology with hands-on mentorship and meaningful responsibility, we create an environment where talented professionals thrive, feel valued, and make a lasting impact on the future of energy.









See Why Engineers Recommend Castillo on Glassdoor
Our reviews consistently highlight Castillo’s strong team culture and rapid professional growth opportunities. Engineers appreciate the supportive environment, meaningful responsibility, and the ability to contribute to real world projects that shape the future of energy.
Why Castillo Engineering
Accelerated Promotion Program (APP)
Your career progression is not left to chance or tenure. We provide a clear, self-driven career track where defined key performance indicators (KPIs) determine how quickly you advance.

Current Openings
Electrical Engineering Intern – Solar & Energy Storage
Hybrid / Remote (U.S.-based) with potential in-office opportunities
We are seeking Electrical Engineering Interns to support the electrical design of solar PV and battery energy storage (BESS) projects. Interns will work under licensed Professional Engineers and senior engineers and contribute directly to real project deliverables.
Civil Engineering Intern – Solar & Energy Storage
Hybrid / Remote (U.S.-based) with potential in-office opportunities
We are seeking a motivated Civil Engineering Intern to support civil and water resources design for solar farm and energy infrastructure projects. This internship provides hands-on experience in Civil 3D drafting, stormwater design, and basic hydrologic and hydraulic modeling, under the guidance of experienced engineers.
Why Castillo Engineering
Accelerated Promotion Program (APP)
Your career progression is not left to chance or tenure. We provide a clear, self-driven career track where defined key performance indicators (KPIs) determine how quickly you advance.

Work From Home (WFH)
We embrace a WFH lifestyle with most positions either fully remote or hybrid.
Training & Skillset Development
We invest in hands-on training and skill development to accelerate promotions and long-term career success.
Continuing Education
We reimburse PE licensure, job-related courses and certifications to support continuous growth and career advancement.
Vacation & Sick Leave
We provide PTO and sick leave packages that encourages work-life balance.
Health & Wellness Benefits
We offer comprehensive health, dental, vision, wellness, disability & life coverage through a leading national carrier.
Retirement Plans
We offer a company matching 401(k) plan through a leading national financial services provider.
What our team has to say
“Over the last 2 years, I’ve grown from an intern to a full-time role and earned a second promotion while taking ownership of meaningful automation and AI work. I’m excited to work on projects with real-world impact while improving internal processes where your contributions are recognized and you can see the difference you make. The team is supportive, including with visa sponsorship, and I’d recommend Castillo to anyone looking to grow while working on impactful projects.”
Jayasurya Bhaskar
Engineering Automation and Data Analyst

What our team has to say
“I joined Castillo Engineering five years ago as an Engineer I and have grown into a management role, becoming a licensed Professional Engineer (PE) along the way. My journey reflects the strong growth opportunities available in a rapidly expanding firm. Castillo offers a great opportunity to grow professionally, work on impactful renewable energy projects, and be part of a team that values innovation and responsibility.”
Manjil Puri, PE
Manager, Electrical Engineering

What our team has to say
“I have been with the firm for almost 8 years, taking on increasing responsibility across engineering, project management and utility-scale solar delivery. What excites me most is the scale and impact of our work designing complex solar PV systems that contribute to clean energy adoption. My career has progressed significantly here with supportive leadership that allows autonomy to lead. I’ve always felt like a key contributor rather than just a number and would absolutely recommend others motivated to work on impactful, large-scale solar projects.”
Roashaael Mary John, PMP
Project Manager

What our team has to say
“I have been with the firm for around 6 years, and it has been exciting to see both the company and my own career growth. I’m motivated by contributing to impactful, medium to large scale solar projects that support the transition to clean energy. The firm provides continuous opportunities to expand my skills, take on new challenges, and grow professionally. I feel that my contributions truly matter, and with supportive leadership and flexibility that allows for a healthy work-life balance, it’s a great place to grow in your career.”
Ankur Jain
Lead Engineer

What our team has to say
“I’ve worked at the firm for over two years, and what excites me most is the opportunity to design solar projects that will actually be built and make a real-world impact. In that time, I’ve grown as an electrical engineer, work alongside smart and supportive teammates, and truly feel that my contributions matter both to the company’s mission and to my own professional goals.”
Dan Grainger, PMP
Electrical Engineer II

What our team has to say
“During my three years with Castillo, the firm has really fostered a culture of growth and improvement where we all learn and succeed together. The work is dynamic and engaging, and there's always an opportunity to step up and become an expert."
Ryan Shilton, PMP
Project Manager

What our team has to say
“After nearly a year at Castillo, I can say the company fosters real growth, collaboration, and innovation! Every team member has a meaningful impact on its success, and with supportive leadership and exciting solar projects, it's an environment I am happy to be a part of.”
Janet Hamidovic
Civil Engineer II

What our team has to say
“I have been with Castillo for over three years, and looking back, I can confidently say it has been one of the most professionally rewarding periods of my career. For engineers who are passionate about continuous professional development in a rapidly evolving industry, I wholeheartedly recommend Castillo Engineering as a place to grow.”
Artem Akulov
Electrical Engineer III

What our team has to say
“The culture is great, there is a strong sense of respect and collaboration, and everyone is like-minded in working toward high-quality results. I have significantly progressed my stormwater design skills and strengthened my expertise. I would highly recommend joining Castillo Engineering.”
Hossein Ghoveisi, PhD
Manager, Civil Engineering – Water Resources

What our team has to say
“At Castillo, I help coordinate solar projects that are making a real impact. It’s a collaborative environment with supportive leadership, and it’s exciting to be part of a team working to build larger and larger solar projects.”
Ana Maier
Sales Operations Coordinator

What our team has to say
“Castillo Engineering has been an excellent place to work, learn, and develop my career. I highly recommend it to talented and motivated professionals who want to grow while contributing to a rapidly expanding team designing and delivering larger and more impactful solar projects.”
Eddy Simon, CPA
Director, Finance & Administration

FAQs
Our process typically includes an initial conversation, a role-specific interview, and a meeting just to make sure you’ll feel at home here.
Most candidates receive an offer within two weeks.
No. Work-life balance matters here. Burning out our employees is not what we are about. Castillo focuses on hiring ahead of demand and builds teams intentionally to maintain sustainable workloads.
We are teammates that genuinely enjoy working together. We take pride in what we design and support one another while having fun along the way.
Castillo embraces a work from home lifestyle with most positions either fully remote or hybrid.
Promotions here are not about how many years you've survived in the rat race. We provide a clearly laid out, linear career track defined by key performance indicators (KPIs), putting you in complete control of how fast you receive promotions and raises.
We provide a linear career track complete with structured promotions and raises, competitive salaries, performance bonuses, remote flexibility, health benefits, 401k matching, and other work-life balance benefits such as paid time off, sick leave and wellness stipends.
Yes. We encourage and financially support employees pursuing PE licensure, industry certifications and continuing education.
Yes. Castillo was founded in 1998 and has been profitable since we opened our doors. We are 100% debt-free with no private equity ownership, and we continue to expand with a well-planned, long-term growth strategy.
You will not be a cog in the wheel here. At Castillo, you will have a clear and structured track to grow your career, direct access to leadership, and real ownership of the projects you help deliver. We are not driven by outside shareholders or corporate bureaucracy.
