This website uses cookies to ensure you get the best experience. Learn more

Sr Instrumentation Technician

For Current Gilead Employees and Contractors:

Please log onto your Internal Career Site to apply for this job.

Job Description

Senior Instrumentation Technician

Gilead Sciences Oceanside is seeking an experienced and knowledgeable Senior Instrumentation Technician to assume responsibilities in its facilities department immediately. This position will report directly to the maintenance team lead and will support utilities, manufacturing, and lab instrumentation so that the plant can continue to reliably produce product and complete successful development runs. The ideal candidate will have the ability and desire to work with and across many functional groups. Opportunities to participate in multiple projects and initiatives outside of the defined role are frequent.

Specific responsibilities:

  • Install, calibrate, troubleshoot, repair, and modify process control instruments or systems for manufacturing applications.
  • Install, calibrate, troubleshoot, repair, and modify electronic, electromechanical, and pneumatic control devices for utility systems which support the manufacturing facilities.
  • Perform calibrations and scheduled preventive maintenance on analytical and other laboratory instruments
  • Test control systems and assist in validation of new and existing manufacturing facilities
  • Continuously evaluate maintenance/calibration practices to eliminate nonproductive activities and implement productivity enhancements

Essential duties and job functions:  

  • Performs installation, maintenance and repairs of line manufacturing equipment.
  • Independently locates and diagnoses failure, replaces defective components, and performs basic troubleshooting using standard electronic equipment, detailed drawings, diagrams, sketches, specifications, prints, manuals and verbal and/or written instructions. 
  • Maintains appropriate maintenance and repair logs. 
  • Uses a variety of hand, power and test tools and equipment.  
  • Provides general maintenance support as designated by supervisor to include any or all of the following areas: utility equipment; HVAC equipment; water for injection; product storage; welding, fabricating, construction, and installations.
  • Coordinates maintenance on critical systems/equipment with supervisor.
  • Creates or revises standard operating procedures.
  • Complies with all safety regulations and current Good Manufacturing Practices (GMPs). 
  • May be required to perform the duties of Maintenance Tech I as required by supervisor.
  • Performs multi-shift work as required.
  • Is required to respond to emergency notifications via phone after hours as needed.


  • May be required to perform calibrations per Metrology procedure as designated by Supervisor.
  • Calibration responsibilities may include: temperature; pressure differential room pressures; chart recorders; freezers/refrigerators; incubators; HVAC.
  • May create calibration procedures for new systems.

Knowledge, experience, and skills:

  • Demonstrates knowledge of current Good Manufacturing Practices (GMPs) and safety regulations.
  • Previous experience with initiating and owning quality records such as deviations, CAPAs, and Change desirable. 
  • Previous experience in biotech or pharmaceuticals commercial manufacturing environment desirable.
  • Utilizes established precedents and policies.  
  • Possesses good verbal, written, and interpersonal communication skills.
  • Demonstrates a working knowledge in Microsoft Office applications.
  • Demonstrates knowledge of maintenance systems, methods and procedures.
  • Is able to recognize deviation from accepted practice and troubleshoot.
  • 6+ years of relevant experience and a high school diploma.
  • Current Leaving Certificate and Trades Certificate GSL.

Required skills:

  • Must possess full knowledge of the fundamental operating principles of industrial process instrumentation and process control systems
  • Be proficient in ISA standards and practices for instrumentation
  • Understands impact of equipment and system changes and alarms through DCS, Delta V, and/or local loop controllers
  • Knowledge of and ability to use Computerized Maintenance and Calibration Management Systems


For jobs in the United States:

As an equal opportunity employer, Gilead Sciences Inc. is committed to a diverse workforce. Employment decisions regarding recruitment and selection will be made without discrimination based on race, color, religion, national origin, gender, age, sexual orientation, physical or mental disability, genetic information or characteristic, gender identity and expression, veteran status, or other non-job related characteristics or other prohibited grounds specified in applicable federal, state and local laws. In order to ensure reasonable accommodation for individuals protected by Section 503 of the Rehabilitation Act of 1973, the Vietnam Era Veterans' Readjustment Act of 1974, and Title I of the Americans with Disabilities Act of 1990, applicants who require accommodation in the job application process may contact for assistance.

For more information about equal employment opportunity protections, please view the ‘EEO is the Law’ poster.



Our environment respects individual differences and recognizes each employee as an integral member of our company. Our workforce reflects these values and celebrates the individuals who make up our growing team.

Gilead provides a work environment free of harassment and prohibited conduct. We promote and support individual differences and diversity of thoughts and opinion.

For Current Gilead Employees and Contractors:

Please log onto your Internal Career Site to apply for this job.

Apply Now

Share this