Arellano Associates employs energetic, highly motivated and tech-savvy individuals who are dedicated to public service. As a premiere consulting firm in Southern California, AA offers the latest advancements in public outreach, communications and technology tools. Our employees enjoy a progressive, positive and challenging work environment that fosters excellence and ongoing learning.

available positions

Financial Administrative Assistant, Chino Hills, CA 

Arellano Associates is currently seeking an experienced Financial Administrative Assistant with strong QuickBooks and Excel knowledge. This role will provide financial, clerical & administrative services to ensure efficient, timely and accurate information. You will also be responsible for the ongoing communication and coordination between other teams to resolve tasks.

Key responsibilities include: 

  • Support Senior Financial Assistant and Financial Manager

  • Enter receipts and invoices into internal time keeping system

  • Reconcile monthly statements

  • File and maintain AP/AR information as needed

  • Reconcile processed work by verifying entries and comparing system reports to balances

  • Update payment discrepancies and documentation

  • Auditing payment requests from vendors and employee expense reports

  • Email correspondence/communication with vendors and related teams

  • Weekly check processing

  • Support Invoicing team

  • Other administrative and clerical duties as assigned


  • 1-3 Years' experience with Excel and QuickBooks

  • Ability to learn company systems

  • Working knowledge of Microsoft Office, including Outlook and Word

  • Ability to prioritize and multi-task

  • Strong organizational skills

  • Strong communication skills

  • Deadline and detail oriented

  • Protects organization's value by keeping information confidential

Assistant Project Coordinator, Chino Hills, CA 

Under direction from project leadership, the Assistant Project Coordinator assists with a variety of tasks for public outreach and stakeholder engagement. This position includes public interaction and limited client interaction. 

Key responsibilities include: 

  • Drafting collateral materials (fact sheets, brochures, newsletters), e-communication, and social media postings 

  • Completing tasks needed for in-person, public engagement events (public meetings), such as meeting logistics and supplies, and event staffing 

  • Assisting to apply the latest tech tools to communicate project information and receive public input, such as: ArcGIS, SurveyMonkey, MetroQuest, Poll Everywhere, TypeForm, dashboards, interactive maps, etc. 

  • Coordinating vendor services, such as catering services, translation services, and toll free phone lines 

  • Updating stakeholder databases, project websites, and social media content 

  • Performing project tasks within allotted time frame and budget parameters 

  • Communicating issues to management and directions to junior staff 

Successful candidates will: 

  • Have 0-3 experience in marketing, communications, public outreach, public relations, government relations, planning, public policy, or a related discipline 

  • Possess excellent written and verbal communication skills 

  • Be detail-oriented, flexible, and able to multi-task in a dynamic environment 

  • Be comfortable interacting with the public 

  • Be available to attend public meetings and in-person events during working and evening hours 

  • Be functional in Microsoft Office, Constant Contact, and social media platforms 

  • Be familiar with electronic mapping, online survey tools, and public engagement software (ArcGIS, Survey Monkey, Metro Quest, TypeForm, Turning Point, and Geosocial interactive mapping) 


Bilingual in English and Spanish 

How to Apply

Applicants should send a resume and cover letter (include design portfolio if applicable) outlining how they meet the specific requirements of the position to