Core Assembly Jobs in Riverside, CA (NOW HIRING)

Power Your Career with Purpose at ESL Power Systems
At ESL Power Systems, we're more than a workplace - we're an employee-owned community committed to building high-quality electrical solutions and strong careers. When you join ESL, you don't just take a job - you become an owner, sharing in the success you help create.
Our Values Drive Everything We Do
Our culture is grounded in five core values that guide how we work, collaborate, and grow:
• Ownership - We think long-term and take pride in our work.
• Adaptability - We embrace change and solve problems together.
• Teamwork - We win as one team across departments.
• Continuous Improvement - We're always learning and getting better.
• Excellence in Customer Experience- Quality and accountability matter.
These values aren't just words - they show up in our daily decisions, our teamwork on the floor, and how we support one another.
Why ESL?
• Employee Ownership (ESOP): As an employee-owned company since 2019, ESL contributes annually to your ESOP account at no cost to you - allowing you to build long-term wealth alongside company growth.
• Meaningful Work: Your contributions directly support critical electrical infrastructure projects that power communities and industries.
• Career Growth and Stability: We're a growing company with strong leadership, long-term vision, and meaningful projects. From training to internal growth opportunities, we invest in building careers, not just filling roles.
What We Offer
We support our employee-owners with a competitive and comprehensive benefits package, including:
• Medical, Dental, and Vision coverage
• 401(k) with company match
• Employee Stock Ownership Plan (ESOP)
• Bonus potential tied to company performance
• Paid Time Off, holidays, and work-life balance
• Training, development, and recognition programs
• Year-around employee engagement events
Join a Company Where People Come First
At ESL, we believe work should be challenging, rewarding, and human. We celebrate wins, support growth, and foster a workplace where people feel valued and connected.
Join ESL Power Systems - where your work has impact, your voice matters, and your career grows with ownership.
Requirements
2nd Shift: 2pm-10:30p
SUMMARY
Responsible for assembling safety interlocked modules and all sub-assemblies, while under the general supervision of the Production Supervisor, leads or senior assemblers while gaining experience in reading drawings, installing components, and completing assembly tasks safely and accurately.
ESSENTIAL DUTIES
• Assemble electrical or electronic systems, components, subassemblies, and wiring using basic hand tools.
• Assist in reading and interpreting schematic drawings, diagrams, blueprints, and work orders to determine basic assembly steps.
• Position, align, and adjust parts and assemblies to ensure proper fit prior to wiring or fastening.
• Drill or tap holes in specified locations to mount components or provide openings for wiring.
• Use basic measuring tools (torque wrenches, torque screw drivers) to verify part dimensions or fit.
• Report missing parts, defects, or assembly issues to leads or supervisors promptly.
• Participate in peer-to-peer build reviews to ensure quality and accuracy.
• Support more complex assemblies under guidance and assist other departments as
needed to meet production goals.
RESPONSIBILITIES
• Develop advanced wiring and troubleshooting skills
• Perform other duties/tasks as assigned/cross train Abide by all rules and regulations as set forth in your employee handbook.
• Always follow all ESL safety procedures and standard operating practices.
• Maintain a clean, organized, and safe workstation following 5S principles.
• Communicate with leads, supervisors, or engineers to clarify instructions or report issues.
• Practice ESL's core values in daily work and interactions.
• Cross-train in related tasks and perform other duties as assigned.
• Follow all rules, policies, and guidelines outlined in the employee handbook.
QUALIFICATIONS
To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and or ability required. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.
• Minimum of six months to 1 year manufacturing or related experience
• High School Diploma or equivalent preferred.
• Effective communication skills
• Ability to multi-task
• Self-motivated
• Detail-oriented
• Understand hardware, parts and some tool knowledge
PHYSICAL DEMANDS
The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodation may be made to enable individuals with disabilities to perform essential functions.
While performing the duties of this job, the employee will be:
Standing 23%, sitting 23%, walking 18%, computer use 4%, bending 16%,
stooping 16%, lifting up to 50 lbs.
• Work with ladders up to 12 feet.
• Wear common protective or safety equipment such as safety shoes and safety glasses
WORK ENVIRONMENT
While performing the duties of this job, the employee is regularly exposed to normal operating working conditions. The noise level in the work environment is usually moderate.
To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed above are representative of the knowledge, skill and/or ability required. Reasonable accommodation may be made to enable individuals with illnesses or disabilities to perform the essential functions.
Salary Description
22.63-24.40