Groundman (Union)
Job Title: Groundman – Substation (Transmission 115–230 kV / BESS / Generation
Location: Puerto Rico – Electrical Substations, BESS Facilities, and Power Generation Plants
Reports to: Substation Foreman / General Foreman
Compensation: $24.48 per hour
About Hyperion Power Solutions
ARG Precision Corporation (ARG) was founded in 1996 under the laws of the Commonwealth of Puerto Rico. It was created to address the industry's demand for power generation services on the island and the struggle to find local companies that could offer this type of service. The objective was to build this company, committed to satisfying the needs of the Power Generation Industry and being the first option of our clients.
ARG/Ceres JV operating under the name of Hyperion Power Solutions was formed in 2023 (Ceres majority control), becoming a leader in construction in the Power Generation Industry in Puerto Rico. The extensive experience of ARG/Ceres JV engineers in the field, more than 25 years, has led the company to an honorable status among our clients. This experience provides a full range of comprehensive services tailored to the client's needs. Being at the forefront of technology allows ARG/Ceres JV to provide unparalleled technical expertise that is essential to addressing the complex requirements of today's projects.
Driven by Purpose, Powered by People
At Hyperion Power Solutions, we believe you're more than just an employee; you're part of a team with a purpose and a meaningful mission—to deliver reliable, innovative, and sustainable power solutions that strengthen Puerto Rico's energy infrastructure and support the communities we serve.
We value initiative, respect diversity, and give our people the freedom to lead. We offer competitive pay, travel opportunities, and a culture built on resilience and teamwork. If you show up with compassion, share the commitment, react with urgency, and deliver solutions, you’ll fit right in. We don’t just respond to challenges, we rise to them.
What We Are Looking For
The Groundman – Substation is an entry-level support role within our substation construction and maintenance teams. This position provides essential ground-level assistance in high-voltage transmission substations (115–230 kV), Battery Energy Storage Systems (BESS), and power generation facilities. The role supports critical construction, maintenance, retrofit, and modernization projects across Puerto Rico, contributing directly to the reliability and sustainability of the island's energy grid.
This position reports to the Substation Foreman or General Foreman and does not involve managing people. Success in the first 12 months looks like mastering safe site support practices, building foundational knowledge of grounding and equipment handling, actively contributing to team safety and efficiency, and demonstrating readiness for progression toward apprentice-level roles.
What You Will Do
Perform general labor and site support activities to ensure smooth project execution.
Assist with the installation and maintenance of grounding and bonding systems in high-voltage environments.
Support the safe installation of conduits, cables, bus work, and non-energized equipment.
Assist with BESS container grounding, equipment positioning, and related tasks.
Support rigging and lifting operations under direct supervision.
Maintain site housekeeping, material organization, and inventory control.
Participate in daily job briefings and contribute to a culture of safety.
Wear required PPE and adhere to lockout/tagout procedures and energized boundaries.
Collaborate with foremen and skilled craft workers to meet project timelines and quality standards.
Respond to urgent site needs with flexibility, including potential travel across Puerto Rico.
Required Qualifications
High school diploma or equivalent.
Ability to perform physically demanding work in outdoor conditions.
Commitment to following strict safety protocols in high-voltage environments.
Valid driver’s license.
Strong work ethic and reliability in a team-oriented setting.
Preferred Qualifications
OSHA 10 or OSHA 30 certification.
First Aid / CPR certification.
Prior construction, labor, or electrical experience.
Familiarity with power generation or substation environments.
What to Expect
You will work primarily outdoors at electrical substations, BESS facilities, and power generation plants across Puerto Rico, supporting teams in construction, maintenance, and modernization projects. Expect physically demanding tasks in varying weather conditions, exposure to high-voltage hazards, heavy equipment, and loud noise, with a strong emphasis on safety through daily briefings, PPE usage, and adherence to lockout/tagout procedures. Schedules may include full-time hours with overtime opportunities, occasional travel to different sites on the island, and urgent call-outs for critical work. The culture is collaborative and mission-driven, focused on teamwork, resilience, and making a tangible impact on Puerto Rico's energy future—ideal for those who thrive in hands-on, high-stakes environments and are eager to grow in the electrical power industry.
Physical Requirements and Environment
Hypherion provides reasonable accommodations to qualified individuals with disabilities and to applicants with sincerely held religious beliefs, as required by law. The physical requirements listed below reflect the essential functions of this role. If you need accommodation to perform these functions, please inform us during the application process.
Ability to lift and move up to 50 pounds with or without reasonable accommodation.
Ability to perform physically demanding tasks, including standing, walking, bending, climbing, and working in confined spaces.
Specific vision abilities to include close vision, distance vision, color vision, peripheral vision, depth perception, and ability to adjust focus where required to safely perform the job.
Willing to wear PPE (Personal Protective Equipment) including but not limited to hard hat, protective eyewear, steel-toed boots, etc.
Ability to work in adverse weather/field conditions, elevated spaces, confined spaces, extreme temperatures, exposure to mechanical parts, wet and/or humid conditions, high, precarious places, fumes or airborne particles, risk of electrical shock and vibration, and loud noise levels.
Commitment to following safety standards and protocols.
Why Join Hyperion Power Solutions?
At Hyperion, you won’t just have a job, you’ll have a mission. Your work will directly strengthen Puerto Rico’s energy infrastructure and power the growth of its communities.
We offer:
A collaborative, mission-driven culture.
Opportunities for professional growth and advancement.
The chance to make a lasting difference for communities.
Hyperion is proud to be an Equal Opportunity and Affirmative Action Employer. All qualified applicants will receive consideration without regard to age, race, color, sex, sexual orientation, gender identity or expression, national origin, religion, disability, pregnancy, genetic information, protected veteran status, or any other status protected by applicable law.
E-Verify: We comply with Federal law by verifying employment eligibility.