City and County of San Francisco

Apprentice Maintenance Machinist I (#7327)

$29.29-$37.26 Hourly / $5,077.00-$6,459.00 Monthly / $60,918.00-$77,506.00 Yearly


Under immediate supervision, assists the journey maintenance machinist in performing skilled machinist work, performs apprentice maintenance machinist work as part of a recognized program established by the International Association of Machinists and Aerospace Workers Union Local 1414, Joint Apprenticeship and Advisory Committee, Maintenance Machinists' Trade. All work to be performed and related supplemental instruction are enumerated in the Apprenticeship Standards formulated by said Committee and are summarized in this specification. The 7327 Apprentice Maintenance Machinist I assists the 7332 Maintenance Machinist in the operation and maintenance of fabrication, installation, maintenance and repair of communication equipment, Municipal Railway equipment, fire alarms, machinery, instruments, castings and valves; performs related duties as required. The apprentice is expected to complete satisfactorily, the training and related instruction for each type of equipment, process, and procedure and to qualify for advancement to Apprentice Maintenance Machinist II.

Distinguishing Features

The Apprentice Maintenance Machinist works under the immediate supervision of a qualified journey-level Maintenance Machinist during the five year apprenticeship required by the trade, learning the operation, repair and maintenance of various manual machine tools, Computer Numeric Control (CNC) machine tools, machinery, and equipment through diversified experience in on-the-job training, classroom instruction, and other related instruction in order to become a fully skilled craftsman.

Nature of work requires some physical effort and considerable dexterity, continuous exposure to physical and working conditions where minor injuries may occur.

Supervision Exercised


Examples of Important and Essential Duties

According to Civil Service Commission Rule 109, the duties specified below are representative of the range of duties assigned to this job code/class and are not intended to be an inclusive list.

  1. Assists with setting up and operating a variety of machine tools, stationary as well as portable manual machine tools and Computer Numeric Control (CNC) machine tools such as mills, lathes, drills, saws etc.
  2. Assists with rebuilding, refinishing, modifying, and/or fabricating replacement parts for pumps, generators, cranes, parking meters, transit vehicles/railway coaches and railway cars, fire alarm boxes, compressors, dredges, pipes lines, barges, ferry terminals and their components.
  3. Assists with maintaining and repairing a variety of instruments and mechanical equipment, including valves, castings, and various metal parts.
  4. Assists with diagnosing, installing, inspecting and testing machinery, parts and equipment.
  5. Assists with reading and interpreting schematic drawings, blueprints, and plans.
  6. Assists with preparing and maintaining records and forms documenting work performed.
  7. Assists with dismantling and assembling light and heavy machines and/or equipment.
  8. Assists with manufacturing/fabricating parts based on samples.

Knowledge, Skills and Abilities

Knowledge of: Mathematics through Algebra 1; measuring, counting, addition, subtraction, fundamental multiplication and division, without the aid of a calculator; basic English reading and writing.

Ability and Skill to: Learn methods, tools and equipment used in the operation, maintenance and repair of a variety of machinery and mechanical aptitude in the use of power equipment and other equipment.

Minimum Qualifications

These minimum qualifications establish the education, training, experience, special skills and/or license(s) which are required for employment in the classification.  Please note, additional qualifications (i.e., special conditions) may apply to a particular position and will be stated on the exam/job announcement.

Possession of a High School Diploma or equivalent (GED or California High School Proficiency Certificate)

Applicants must be 18 years of age by the end of the selection process*; and

License and Certification:
Possession of a valid CA Class C Driver’s License; and
Requires obtaining a Class B Driver's license within two (2) years of appointment. Failure to obtain the appropriate driver's license within the specified time period may be cause for separation.


1. Applicant must successfully pass a written aptitude examination; and
2. Successfully pass the City and County of San Francisco pre-employment drug test.

*Proof of one (1) year of High School Algebra or one (1) term of college Algebra with a passing cumulative grade of "C-" or better. (Your official transcripts MUST state "Algebra", or the like. If your algebra course was entitled "Integrated Math", "Math 90" or the like, your school must include a letter written on letterhead that states the course you took was the equivalent to algebra).

The Apprentice is expected to complete satisfactorily, the training and related instruction for each type of equipment, process, and procedure and to qualify for advancement to Apprentice Maintenance Machinist II.



REASON FOR AMENDMENT To accurately reflect the current tasks, knowledge, skills and abilities defined in the most recent job analysis conducted for this job code.


Disaster Service Workers

All City and County of San Francisco employees are designated Disaster Service Workers through state and local law (California Government Code Section 3100-3109). Employment with the City requires the affirmation of a loyalty oath to this effect. Employees are required to complete all Disaster Service Worker-related training as assigned, and to return to work as ordered in the event of an emergency.

CLASS: 7327; EST: 2/24/2016; REV: 2/24/2016;