Tester B DSW

Delta Star Inc.; San Carlos (CA); On-site; USD 60,000 - 85,000; Full time

Benefits offered by this job

Medical insurance

401(k) with ESOP

Paid time off

Education assistance

Job summary

Delta Star Inc. in California is seeking a dedicated Tester to support quality testing of power and mobile transformers.

You will follow test procedures, read schematics, and document results to ensure product performance and compliance with specifications. The role emphasizes hands-on testing, attention to detail, rigorous documentation, and collaboration with engineering and senior technicians in a fast-paced manufacturing environment.

Qualifications

• Hands-on, quality-driven technician with electrical troubleshooting basics.
• Ability to read schematics, wiring diagrams and technical documents.
• Strong documentation and organizational skills.

Responsibilities

• Perform control functional tests on basic transformer control circuitry.
• Conduct standard transformer tests: turns ratio, insulation resistance, power factor, and more.
• Assist senior technicians with advanced testing and calibrations.
• Document quality control results and report non-conformances.

Skills

Hands‑on

Quality‑driven

Schematics reading

Documentation

Attention to detail

Teamwork

Education

High school diploma

Job description

This is an exciting time to be joining Delta Star!

We are Delta Star! The largest, American-owned medium power transformer manufacturer in the United States and the premier manufacturer of mobile transformers and mobile power substations in North America.

We are an industry-leader that has harnessed the power of electricity to reliably connect you to an essential part of modern-day life. Giving you the peace of mind you deserve to go out and make the world a better place!

Summary

Delta Star Inc. is seeking a dedicated and detail-oriented Tester to support quality testing operations for our power and mobile transformers. If you have a foundation in electrical theory, hands-on troubleshooting skills, and a strong commitment to quality, this could be the next step in your career.

What You'll Do

As a Tester, you'll play a hands‑on role in performing control circuit and transformer testing procedures to ensure product performance and compliance with specifications. You'll work with engineering documentation and testing instruments, contributing to the overall quality and reliability of our equipment.

A Day in the Life

In this role, you'll follow detailed test procedures, wiring schematics, and technical drawings to conduct functional and performance testing. You'll document quality control results, assist senior technicians with advanced testing, and help ensure that every transformer leaving the facility meets Delta Star's standards. You'll also participate in inspection activities and contribute to continuous improvement efforts.

Specific Duties

• Recognize and complete all required Quality Control documentation accurately and in a timely manner.
• Perform control functional tests on basic transformer control circuitry.
• Conduct standard transformer tests including:
  • Turns ratio
  • Insulation resistance (megger)
  • Power factor (bushing and overall)
  • Dissipation factor
  • Phase relationship
  • CT ratio and polarity
  • 10kV excitation
  • Oil hipot
• Assist with advanced testing procedures under the supervision of senior technicians, including:
  • Induced voltage with RIV/Partial Discharge
  • Impulse and heat run testing
  • Load and no-load losses
  • Sound level testing
  • Preventative auto testing
• Use transformer diagnostic instruments and measurement systems with attention to calibration and accuracy.
• Perform product inspections and report any non‑conformances, material defects, or unusual conditions to the supervisor.
• Participate in quality improvement initiatives and team training.

What We're Looking For

We're looking for a hands‑on, quality‑driven technician with a strong work ethic and a passion for learning. You should be comfortable working in a fast‑paced manufacturing environment and eager to grow your technical skillset.

Position Requirements

• High school diploma or equivalent required; technical training or coursework in electrical theory preferred.
• Basic understanding of electrical theory and troubleshooting techniques.
• Ability to read and interpret schematics, wiring diagrams, and technical documents.

Skills & Competencies

• Experience using electrical measurement and diagnostic tools.
• Strong attention to detail with the ability to follow complex procedures.
• Ability to work both independently and as part of a team.
• Excellent organizational and documentation skills.
• Willingness to assist senior team members and take part in continuous training.

Why Join Us?

At Delta Star, you'll be part of a supportive and forward‑thinking team that values professionalism, efficiency, and exceptional service. We offer a comprehensive benefits package to support you and your family, including medical, dental, vision, life, and disability insurance. We also provide a 401(k) plan with matching contributions, an Employee Stock Ownership Plan (ESOP), and a corporate bonus plan.

You'll enjoy paid time off, sick pay, floating holidays, and access to flexible spending accounts and consumer benefits. Additionally, we provide a benefit bank, a wellness center to support your health and well‑being, and education assistance to help you grow in your career. At Delta Star, we're committed to helping you thrive both personally and professionally.

Other Duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

AAP/EEO Statement

Delta Star is an EEO/Affirmative Action Employer and does not discriminate on the basis of age, race, color, religion, gender, sexual orientation, gender identity, gender expression, national origin, protected veteran status, disability or any other legally protected status.