Air Conditioning Equipment Mechanic Assistant Supervisor Job in Washington, DC

Vacancy No. CB-2026-243 Department Architect of the Capitol
Salary $45.21 to $52.68 Grade 10 to 10
Perm/Temp Permanent FT/PT Full-time
Open Date 6/10/2026 Close Date 6/24/2026
Job Link Apply Online Who may apply Status Candidates
Locations:
Washington, DC


Air Conditioning Equipment Mechanic Assistant Supervisor

Legislative Branch
Architect of the Capitol

Summary

This position is located in the Architect of the Capitol (AOC), Capitol Building and Capitol Visitor Center Operations and Maintenance Division; Maintenance Section, Night Maintenance Unit. The selectee will exercise technical and administrative supervision over workers performing air conditioning (A/C) mechanical work.

This job is open to

Internal to an agency

Current federal employees of the hiring agency that posted the job announcement.

Clarification from the agency

Applications Will Be Accepted From Current AOC Employees Only. Note: Please be advised that federal retired annuitant candidates may only be considered as a temporary employee if the role can be filled in that capacity.

Duties

TOUR OF DUTY: 

Night shift: 10:00pm - 6:30am (Hours may Change Due to Operational Needs of Management)

This position is located in the Architect of the Capitol (AOC), Superintendent, Capitol Building; Assistant Superintendent, Assistant Superintendent, Capitol Building and Capitol Visitor Center Operations and Maintenance Division; Maintenance Branch; Maintenance Section, Day, Evening and Night Maintenance Units. The incumbent exercises technical and administrative supervision over workers performing air conditioning (A/C) mechanical work.

The incumbent is a working assistant to the supervisor with the following duties and responsibilities:

  • Assists with providing administrative and technical direction to subordinate employees which includes developing performance standards; providing for employee skills enrichment through job related coaching, mentoring, and training; and resolving complaints and grievances as delegated.
  • Assists with planning the work assignments based on established deadlines, priorities, and work sequences.
  • Prepares estimates of material costs for proposed or anticipated mechanical system alterations and new mechanical system installations. 
  • Plans and lays out work assignments. Checks completed assignments for proper operation and preventive maintenance on a variety of commercial and industrial systems.   
  • Manages the operation of pneumatic and Direct Digital Control systems to control air-handling units to maintain air temperature, relative humidity, duct and building static pressure, and outside air economizer controls. 
  • Examines complex air conditioning systems in order to troubleshoot, locate, and repair faulty equipment such as compressors, reciprocating, centrifugal, or rotary pump, and refrigerant controls.
  • Plans, lays out, directs, and checks the work of insulators and pipe coverers who are engaged in the installation, maintenance, and removal of insulation materials.

Requirements

Conditions of employment

  • You must be a U.S. Citizen.
  • You must be able to pass a drug test.
  • Your resume and question responses must demonstrate job-related elements.

To be employed by the Architect of the Capitol in a paid position, an individual must meet one of the categories below:

  • A citizen of the United States;
  • A person who is lawfully admitted for permanent residence and is seeking citizenship as outlined in 8 U.S.C. 1324b(a)(3)(B);
  • A person who is admitted as a refugee under 8 U.S.C. 1157 or is granted asylum under 8 U.S.C. 1158 and has filed a declaration of intention to become a lawful permanent resident and then a citizen when eligible;
  • A person who owes allegiance to the United States (nationals of American Samoa, Swains Island, and the Northern Mariana Islands, and nationals who meet other requirements described in 8 U.S.C. 1408); or
  • A person who is currently an officer or employee of the Government of the United States.

You resume and question responses must demonstrate job-related elements.

You must meet the definition of specialized experience.

Qualifications

You must meet all eligibility and qualifications requirements by the closing date of the job announcement.  
  
SCREEN-OUT:  Experience leading or supervising skilled workers in the mechanical trade occupation.

Additional information

Welcome Veterans. The Veterans Employment Opportunities Act of 1998 (VEOA) gives veterans' preference rights in the legislative branch to certain veterans as applied by the Congressional Accountability Act. Veterans' preference is applied on this vacancy announcement. If you are a veteran and have been separated under honorable conditions, you must submit a copy of your DD-214 or other proof of eligibility; SF-15, if applicable; and Department of Veterans Affairs documentation of disability, if applicable. For more information, please visit http://www.opm.gov/veterans/html/vetguide.asp#6.

If you are a male applicant born after December 31, 1959, you must certify that you have registered with the Selective Service System.  If you are exempt from registration under Selective Service Law, you must provide appropriate proof of exemption. Please visit the Selective Service System website for more information.

DRUG TESTING: The Architect of the Capitol (AOC) is a Drug Free Workplace. As part of the AOC’s suitability assessment, a candidate tentatively selected for a position who is not currently an AOC employee is required to submit to screening for illegal drug use. Satisfactory completion of a drug test is a condition of employment with the Agency. A candidate must test negative prior to being eligible for appointment into a position. We will schedule, provide, and cover the cost for the drug test.
 
The selectee(s) under the vacancy announcement for this position is subject to a criminal record check by the U.S. Capitol Police and satisfactory adjudication to be eligible for employment at the Architect of the Capitol.
 
The Architect of the Capitol is an E-VERIFY Participant. E-VERIFY is an Internet-based system that compares information from an employee's Form I-9, Employment Eligibility Verification, to data from U.S. Department of Homeland Security (DHS) and Social Security Administration records to confirm employment authorization in the United States. If you are selected for this position, the documentation that you present for purposes of completing the DHS Form I-9 will be verified through the DHS "E-VERIFY" electronic system. For more information on E-Verify, please visit http://www.dhs.gov/files/programs/gc_1185221678150.shtm

The Architect of the Capitol is an Equal Opportunity Employer and prohibits discrimination on the basis of race, color, sex, religion, age, national origin, genetic information, sexual orientation, and/or disability.
This agency provides reasonable accommodation to applicants with disabilities. If you need a reasonable accommodation for any part of the application and hiring process, please notify the agency. The decision on granting reasonable accommodation will be on a case-by-case basis.
 
Moving expenses are not authorized.
 
Relocation expenses are not authorized.
 
Probationary Period A newly appointed selectee(s) is subject to the completion of a one-year trial/probationary period, regardless of whether or not a trial/probationary period has been completed previously with the Architect of the Capitol or another Federal agency.

This vacancy announcement may be used to fill additional vacancies in any of the jurisdictions of the Architect of the Capitol.

All application materials become the property of the Architect of the Capitol.

Candidates should be committed to improving the efficiency of the Federal government, passionate about the ideals of our American republic, and committed to upholding the rule of law and the United States Constitution.

A career with the U.S. government provides employees with a comprehensive benefits package. As a federal employee, you and your family will have access to a range of benefits that are designed to make your federal career very rewarding. Opens in a new windowLearn more about federal benefits.

A career with the U.S. Government provides employees with a comprehensive benefits package. As a federal employee, you and your family will have access to a range of benefits that are designed to make your federal career very rewarding. Learn more about federal benefits.

Selected applicant(s) may be eligible to earn a higher annual leave accrual rate credit towards annual leave accrual based on prior non-Federal or uniformed service work experience. The amount of service credit will be based on specialized experience or qualifying experience that is provided on the applicant profile submitted. As such, if you are a new employee to the Federal Government or a rehire, it is important that you provide a work history that lists all directly related positions held, and it must include the dates of employment (month/day/year).

The Architect of the Capitol offers eligible employees opportunity to participate in the Student Loan Repayment Program.

Eligibility for benefits depends on the type of position you hold and whether your position is full-time, part-time or intermittent. Contact the hiring agency for more information on the specific benefits offered.

How you will be evaluated

You will be evaluated for this job based on how well you meet the qualifications above.

Review your resume and responses carefully. Your eligibility for consideration and qualifications for the position will be determined based upon a review of your detailed resume and your responses to job specific self-assessment questions. 

Your resume will be evaluated based on evidence of your ability to demonstrate the knowledge, skills, and abilities (KSAs) for this position, possession of any specialized experience, and how well your background and experience relates to the self-assessment questions in the job announcement. The self-assessment questions relate to the following job elements.

  • Experience leading or supervising skilled workers in the mechanical trade occupation. (Screen-out)
  • Knowledge of air conditioning equipment assembly, installation, and repair.
  • Ability to interpret instructions, specifications, etc., including blueprints.
  • Knowledge of air conditioning and refrigeration materials.
  • Knowledge of air conditioning and refrigeration trade practices.
  • Ability to use and maintain tools and equipment of the refrigeration and air conditioning trade.
  • Troubleshooting air conditioning and refrigeration units.

Your responses to the self assessment questions serve as the basis for your initial rating. You will receive a numerical score based on your responses to these questions. Next, your responses will be evaluated by a Human Resources Specialist and/or a subject matter expert against the information provided in your resume and optional cover letter. Your resume must support your answers to the self assessment questions. Falsifying your background, education, and/or experience is cause for not hiring you or disqualification for further consideration. 

Please note that a complete application is required for consideration. (Please review the “Required Documents” section of this job announcement to see what must be included in a complete application).


You may preview questions for this vacancy.

Required Documents

A complete application consists of:

A resume or any other written format you choose to describe your job-related qualifications. An cover letter is optional.

Your resume should indicate your citizenship and should list your educational and work experience including job titles, salary, employment dates, duties and accomplishments, experience and how it relates to the KSAs in the job announcement. Any experience claimed in a cover letter should be fully substantiated by information contained in your resume. 

Supporting Documentation:


You can choose ONE of the following methods to submit Supporting Documents:

1) You can upload your documents when you register or update your information on the Architect of the Capitol application site which you access through the USAJobs site.
 ---OR---
2) You can fax your documents using the system generated fax cover sheet.

Your application and all required documentation must be received by 11:59 p.m. Eastern Standard Time on the closing date of this job announcement.

If you are relying on your education to meet qualification requirements:

Education must be accredited by an accrediting institution recognized by the U.S. Department of Education in order for it to be credited towards qualifications. Therefore, provide only the attendance and/or degrees from schools accredited by accrediting institutions recognized by the U.S. Department of Education.

Failure to provide all of the required information as stated in this vacancy announcement may result in an ineligible rating or may affect the overall rating.

How to Apply

You MUST apply online.  

FORMS RECEIVED BY FAX, EMAIL OR U.S. POSTAL SERVICE DELIVERY WILL NOT BE ACCEPTED.

If you are a new user to the USAJobs Site and have never registered for an account; you will first need to create an account profile with your basic contact information and a resume to begin applying. You must be a registered USAJobs user AND you must be signed-in to your account in order to apply for this position. For help setting up an account or for general help using USAJobs, go to USAJobs Help Page.
 
NEED HELP?
If you experience any difficulties with the application site, help is available!  If you have problems completing your on-line application, contact the Monster Hiring Management Help Desk at 1-866-656-6831 or by e-mail at MGSHELP@monster.com. The help desk is available Monday - Friday 7:00 a.m. to 7:00 p.m. Eastern Time. You may call and leave a voice mail message at all other times. 

All required supporting documents will be collected electronically via the USAJobs “Saved Documents” feature.

If you are unable to apply on-line, you may visit our Employment Center for technical assistance in entering your application. The Employment Center is located at 441 Second & D Streets S.W., Washington, D.C., Room H2-178, and is open Monday through Friday from 8:00 a.m. to 4:00 p.m. You may call (202) 226-7000 for directions.

Agency contact information

Paulette Dixon-Ellis
Phone
000-000-0000
Fax
000-000-0000
Email
Paulette.Dixon-Ellis@aoc.gov
Address
Architect of the Capitol
United States Capitol
Washington, District of Columbia 20515
United States

Next steps

You will receive a notice generated by the USAJobs System when you have successfully submitted your application. We will review your application and transcript(s) (if you are qualifying based on education) to ensure you meet the basic qualification requirements.  
 
You can check the status of your application by logging into http://www.usajobs.gov.  You may also sign up to receive automatic emails anytime the status of your application has changed by logging into your USAJobs Account, editing your profile and changing the ‘Notification Settings’ to indicate that you want to be notified by email when the status changes.  Information regarding the status of your application should be updated in the system within two (2) weeks after the closing date of this job announcement.

Architect of the Capitol

The mission of the Architect of the Capitol (AOC) is to serve Congress and the Supreme Court, preserve America's Capitol and inspire memorable experiences. The AOC is responsible for the maintenance, operation, development and preservation of 18.4 million square feet of buildings and more than 570 acres of land throughout Capitol Hill. The AOC provides a welcoming and educational environment for millions of visitors through the U.S. Capitol Visitor Center and the US Botanic Garden. Learn more at www.aoc.gov.


The AOC prides itself on its Core Values of Respect, Integrity, Safety and Empowerment (RISE).

Agency contact information

Paulette Dixon-Ellis
Phone
000-000-0000
Fax
000-000-0000
Email
Paulette.Dixon-Ellis@aoc.gov
Address
Architect of the Capitol
United States Capitol
Washington, District of Columbia 20515
United States