Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Part-Time AR Specialist

$30 - $32 per hour

Ultimate Staffing

Job Title: Part-Time AR Specialist

Location: Irvine, CA

Pay: $30-$32/hr.

Schedule: ~20 hours per week (potential to increase in peak seasonings)

Duration: Ongoing Temporary

About the Role

We are seeking a detail-oriented AP/AR Specialist to provide part-time support to the accounting team in our client's Irvine office. This role will work closely alongside the existing accounting staff to assist primarily with AR and AP coordination, helping to ensure accurate, timely processing and follow-up.

This position is ideal for an accounting professional who enjoys transactional accounting work, has strong QuickBooks Online experience, and is comfortable supporting day-to-day AR/AP activities in a collaborative environment.

Key Responsibilities

  • Assist with Accounts Receivable (AR) processing, including invoicing, payment application, and follow-up on outstanding balances
  • Support Accounts Payable (AP) functions, including invoice entry, coding, and payment coordination
  • Communicate with internal stakeholders and external vendors/customers regarding billing and payment status
  • Maintain accurate, organized financial records and documentation
  • Utilize QuickBooks Online for AR/AP processing and reporting
  • Support additional accounting tasks as needed to assist the broader team

Requirements

  • Prior experience in Accounts Receivable and Accounts Payable functions is required
  • Hands-on experience using QuickBooks Online is required
  • Strong attention to detail and accuracy
  • Solid organizational and time-management skills
  • Ability to work independently while collaborating closely with a small accounting team
  • Professional communication skills, both written and verbal

All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, and Los Angeles County Fair Chance Ordinance.

Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Part-Time AR Specialist in Irvine, CA vacancy
  • $85 - $120 per hour

     ...Legal Expert Part-Time | Remote (US, UK, Canada, or Australia) $85 –$120/hour | Hourly Contract About the Role A leading AI research lab is seeking experienced Legal professionals to join a project aimed at improving how AI systems understand, process, and reason... 
    Part time
    Hourly pay
    Daily paid
    Contract work
    For contractors
    Immediate start
    Remote work

    Call For Referral

    Santa Ana, CA
    4 days ago
  • $77.8k - $97.3k

     ...-starting Workplace Operations Associate Specialist to support daily operations and facilities...  ...issues. Strong organizational and time-management skills, with the ability to manage...  ...package of benefits for full-time and part-time employees, their spouse or domestic... 
    Part time
    Full time
    Contract work
    Temporary work
    Work at office
    Local area
    Shift work

    Rivian

    Irvine, CA
    4 days ago
  • $388.38k

     ...Occupational Medicine Specialist - Orange County Primary Location: USA-California-Irvine...  ...coverage Vacation/holiday/sick/education time and leave (prorated to work schedule)...  ...time employment (six consecutive years of part-time employment) Increased benefits (e... 
    Part time
    Full time
    Local area
    Relocation package

    SCPMG Meetings and Events (KPSymposia)

    Irvine, CA
    3 days ago
  •  ...The Behavioral Health Specialist provides behavioral health services to patients of all ages at Camino Health Center. The Behavioral Health...  ...and recovery approaches to health conditions Provides timely and clinically indicated referrals to community providers for patients... 
    Part time
    Work at office
    Local area
    Immediate start
    Monday to Friday
    Flexible hours
    Weekend work
    Afternoon shift

    Camino Health Center

    Lake Forest, CA
    2 days ago
  • $53.5k - $191.5k

     ...Sunday, Aug 31, 2025 at 11:59pm (Pacific Time) Applications received after this date...  ...anticipates openings for all levels of the Specialist series. Positions in the Specialist...  ...Investigators. Positions may be full or part-time. Salary is commensurate with experience... 
    Part time
    Full time
    Local area
    Immediate start

    University Of California Irvine

    Irvine, CA
    3 days ago
  • $55k - $194.8k

     ...Friday, Sep 26, 2025 at 11:59pm (Pacific Time) Applications received after this date...  ...filled. Position description Specialist positions are occasionally available...  ...and experience. Positions may be full or part time depending on available funding and needs... 
    Part time
    Full time
    Local area

    University Of California Irvine

    Irvine, CA
    5 days ago
  • $84k - $140k

     ...Specification Specialist II At HDR, our employee-owners are fully engaged in creating a welcoming...  ...stronger, more vibrant communities. As part of our Architecture practice at HDR, you'...  ..., an employee assistance program, paid time away, parental leave, paid holidays, a... 
    Part time
    Full time
    Contract work
    Temporary work
    Work at office

    HDR

    Irvine, CA
    1 day ago
  • $68.19k - $106.33k

     ...Pursuit & Proposal Specialist This is an exciting opportunity for a self-motivated individual...  ...skills that enable efficient time use and deadline adherence. Creativity and...  ...Arcadis offers benefits for full time and part time positions. These benefits include medical... 
    Part time
    Full time
    Contract work
    Shift work

    ARCADIS

    Irvine, CA
    5 days ago
  • $17.15 - $19.15 per hour

     ...expect when you work here As a Receiving Specialist, you will be responsible for managing the...  ...afraid to fail; no one is right all the time, but you can always be well-prepared....  ...chance to earn commission. This is a part-time position. Benefits include 401K,... 
    Part time
    Hourly pay
    Immediate start
    Shift work
    Night shift
    Afternoon shift

    Comoto

    Laguna Hills, CA
    2 days ago
  • $20 - $22 per hour

     ...Employment Specialist - Working with Adults with Developmental Disabilities! M–F Schedule...  ...Health insurance Life insurance Paid time off Vision insurance Schedule ~ Monday...  ...); preferred availability 7 AM–4 PM ~ Part-time opportunities available! ~ No... 
    Part time
    Full time
    Work at office
    Monday to Friday
    Weekend work
    Afternoon shift

    Institute for Applied Behavior Analysis

    Laguna Hills, CA
    1 day ago
  • $160.7k - $289.8k

     ...Mobile, our benefits exemplify the spirit of One Team, Together! A big part of how we care for one another is working to ensure our benefits evolve to meet the needs of our team members. Full and part-time employees have access to the same benefits when eligible. We cover... 
    Part time
    Full time
    Contract work
    Temporary work
    Work experience placement
    Local area
    Flexible hours

    T-Mobile

    Irvine, CA
    3 days ago
  •  ...of Workers' Compensation Manager, ensures timely processing of workers' compensation...  ...follow up is completed by the Work Comp Specialist. Communicates with TPA on the handling...  ...coverage is provided for all full time and part time employees* ~ Medical is 100% employer... 
    Part time
    Daily paid
    Full time
    Temporary work

    KPC Health

    Santa Ana, CA
    1 day ago
  • $55k - $70.7k

     ...Exempt and $26.35-$33.87 for Non-Exempt. See Specialist Series Exempt table and Specialist Series...  ...Sunday, May 31, 2026 at 11:59pm (Pacific Time) Apply by this date to ensure full...  ...examinations per year and has 30 full-time and part-time faculty. All imaging equipment is... 
    Part time
    Full time
    Local area

    University Of California Irvine

    Irvine, CA
    4 days ago
  •  ...JOHNSON SERVICE GROUP (JSG) seeks a Remote Accounts Receivable-Reimbursement Specialist to handle financial transactions and manage vendor payments, ensuring accurate reconciliations. Candidates should possess a BA/BS in accounting or finance or equivalent experience... 
    Contract work
    Remote work
    Monday to Friday

    Johnson Service Group (IL)

    Irvine, CA
    4 days ago
  • $23 per hour

     ...We offer flexible hours, competitive pay, and great benefits for both full and part-time associates. If this sounds like a good fit for you, come join our team! The Project Specialist Flex role entails ensuring that Anderson Merchandisers' standards are upheld to... 
    Part time
    Weekly pay
    Full time
    Temporary work
    Relocation
    Flexible hours
    Shift work
    Night shift
    Day shift

    Anderson Merchandisers

    Irvine, CA
    2 days ago
  •  ...Parts Specialist, Ever Orange County Ever is building the future of auto retail. As the first AI-native auto retail platform, we are building...  ...will ensure our technicians have the right parts at the right time to keep our reconditioning turnaround times fast and our... 
    Part time

    Ever

    Irvine, CA
    1 day ago
  • $55k - $65k

     ...Looking for a fresh start for a nationwide technology growing company? Our client is looking for their next AR Specialist for a direct hire opportunity. This role is in fully onsite in Irvine. Exact compensation may vary based on skills, experience, and location. Expected... 

    Century Group

    Costa Mesa, CA
    4 days ago
  • $94.14k - $126.9k

     ...Irvine, CA 92602, CA Job Type: FULL-TIME Job Number: 2026-22-DS Department:...  ...(1) vacancy for the position of Project Specialist, Improvement in the Property Management Division...  ...40.91 per pay period (24 pay periods) Part-Time Employees: $170.46 per pay period (2... 
    Part time
    Full time
    Contract work
    For contractors
    Trial period
    Flexible hours

    Orange County Fire Authority, CA

    Irvine, CA
    2 days ago
  • $21 - $22 per hour

     ...Job Overview: The Resident Relations Specialist/Front Desk supports the General Manager...  ...(verbal, written, visual) at all times, with peak emphasis on delivering friendly...  ...full time and those working 30+ hours) Part time 20+ hours qualify for dental and vision... 
    Part time
    Full time
    Local area
    Flexible hours
    Shift work
    Afternoon shift

    FirstService Residential Careers

    Irvine, CA
    4 days ago
  • Anduril Industries is seeking a Technical Operations Specialist to deliver high-impact AR demonstrations that showcase Anduril's technology. This role...  ...clearance or be eligible to obtain one. Travel up to 75% of the time is required. A competitive salary and comprehensive... 

    Anduril Industries

    Costa Mesa, CA
    1 day ago
  • $113k - $149k

    Anduril Industries is seeking a Technical Operations Specialist in Costa Mesa, California. The role involves delivering advanced AR demonstrations to military and government officials and requires exceptional communication and troubleshooting skills. Candidates must possess... 

    jobs.frontdoordefense.com - Jobboard

    Costa Mesa, CA
    2 days ago
  • $18 per hour

     ...Booster Program Specialist Booster is a mission-driven school fundraising company focused on cultivating virtuous leaders who want...  ...students and communities. This role is available in both full-time and part-time capacities and is ideal for someone early in their... 
    Part time
    Hourly pay
    Full time

    Booster

    Orange, CA
    2 days ago
  • $29.63 - $43.79 per hour

     ...79 Hourly Location : Newport Beach, CA Job Type: Full-Time/Part-Time Job Number: 25/26-00190 Department: Utilities...  ...Path: This is the entry-level position in the Utilities Specialist classification series. The career path for this position is Senior... 
    Part time
    Hourly pay
    Full time
    Work experience placement
    Currently hiring

    City of Newport Beach, CA

    Newport Beach, CA
    4 days ago
  •  ...to ensure that both in work and in life you experience something greater. What You Will Do We are searching for part-time Promotional Specialists. The Promotional Specialist will represent our client's brand at events throughout the designated market and will engage... 
    Part time
    Work at office
    Local area

    TEAM Industrial Services

    Newport Coast, CA
    4 days ago
  • Just-Food-For-Dogs in Anaheim is seeking a part-time Nutrition Sales Consultant to engage with pet owners and promote healthy nutrition for dogs. This role requires a passion for pet health and the ability to build customer relationships based on trust and knowledge. The... 
    Part time

    Just-Food-For-Dogs

    Anaheim, CA
    3 days ago
  •  ...Part Time Office Specialist II The Anaheim Police Department's Investigations Division is accepting applications for a Part Time Office Specialist II. The Office Specialist II will perform a range of clerical duties including data entry and filing, to support the Investigations... 
    Part time
    Work at office
    Immediate start

    City of Anaheim

    Anaheim, CA
    2 days ago
  • $18 - $22 per hour

     ...Position Summary: The Behavioral Health Specialist (BHS) plays a vital, hands-on role in...  ...interactions clearly, accurately, and in a timely manner to support treatment planning....  ...require a reasonable accommodation for any part of the application or hiring process please... 
    Part time
    Hourly pay
    Full time
    Work experience placement
    Local area
    Flexible hours
    Shift work
    Night shift
    Afternoon shift

    Newport Healthcare

    Orange, CA
    5 days ago
  • Jupiter Yoga in Newport Beach is seeking a Client Enrollment & Studio Relations Advisor for a part-time role. This position involves blending sales, client relations, and studio administration to guide potential students into our offerings. Responsibilities include enrolling... 
    Part time
    Hourly pay

    Jupiter Yoga

    Newport Beach, CA
    12 hours ago
  •  ...Part Time Personnel Specialist The City of Anaheim Community Services Department is seeking a highly organized and detail orientated Part Time Personnel Specialist to perform complex specialized employment and recruitment duties. In addition, perform front desk duties... 
    Part time
    Work at office
    Local area
    Immediate start
    Monday to Friday

    City of Anaheim

    Anaheim, CA
    5 days ago
  • $20.9 - $23.92 per hour

     ...Adventure Readiness Specialist Rivian is on a mission to keep the world adventurous forever...  ...Readiness Specialist, you are a critical part of the Rivian Service team during our...  ...believe we would pay for this role at the time of this posting. An employee's position within... 
    Part time
    Hourly pay
    Full time
    Temporary work
    Seasonal work
    Local area
    Flexible hours
    Shift work

    Rivian

    Costa Mesa, CA
    13 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Part-Time AR Specialist. Be the first to apply!