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Project Assistant Jobs in Tamuning, GU (NOW HIRING)

Administrative Project/Office Coordinator

Hagatna, GU · On-site

$18 - $24/hr

Monitor project team deliverables and assist Project Managers in tracking submission deadlines to ensure timely and compliant project deliverables. * Assist Project Managers with project management ...

Project Planner / Scheduler

Tamuning, GU · On-site +1

$150K - $190K/yr

Support project controls functions, including cost and schedule integration where applicable * Assist with 4D planning/BIM coordination (e.g., Navisworks, Synchro) as needed * In addition to the ...

Black Construction, a Tutor Perini Company, is seeking a Project Manager to join our office in Guam . About Black Construction : ON TRACK WITH BLACK Black Construction Corporation has a proud ...

Black Construction, a Tutor Perini Company, is seeking a Project Manager to join our office in Guam . About Black Construction : ON TRACK WITH BLACK Black Construction Corporation has a proud ...

Civil Project Engineer

Hagatna, GU · On-site

$70K - $94K/yr

Our Project Managers and Engineers collaborate with a team of local Hawaii and Guam-based small ... Perform site visits and field investigations when required. * Assist with engineering services ...

The Research Assistant III will assist with research design, data collection and analysis, report ... Working knowledge of grant-funded project administration, reporting requirements, and compliance ...

The Research Assistant I will also assist faculty and staff with applied research projects, including data collection and basic experimental setup. Operating a range of battery- or gas-powered ...

The Research Assistant I will also assist faculty and staff with applied research projects, including data collection and basic experimental setup. Operating a range of battery- or gas-powered ...

Position Information Position Title Research Assistant I Posting Number 053-26 Full or Part Time ... Working knowledge of grant-funded project administration, reporting requirements, and compliance ...

Site Superintendent

Tamuning, GU · On-site

$75K - $130K/yr

Key implementers of field activities and tasks preparatory to field activities * Assist in identifying and performing general labor tasks to achieve project objectives under the direction of the ...

Key implementers of field activities and tasks preparatory to field activities * Assist in identifying and performing general labor tasks to achieve project objectives under the direction of the ...

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Project Assistant information

See Tamuning, GU salary details

$11

$18

$27

How much do project assistant jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for project assistant in Tamuning, GU is $18.95, according to ZipRecruiter salary data. Most workers in this role earn between $15.24 and $21.35 per hour, depending on experience, location, and employer.

How much do project assistants get paid?

Project assistants typically earn between $35,000 and $55,000 annually, depending on experience, industry, and location. Entry-level roles may start lower, while experienced assistants or those in specialized fields can earn higher salaries. Compensation often includes benefits such as health insurance and paid time off.

How does a project assistant typically collaborate with project managers and other team members?

Project Assistants play a crucial role in supporting project managers by organizing schedules, preparing documentation, and facilitating communication among team members. They often attend meetings to take notes, track action items, and ensure deadlines are met. Regular collaboration with various departments is common, as Project Assistants help coordinate resources, gather updates, and address any logistical challenges that arise. This role is ideal for individuals who enjoy multitasking and thrive in a dynamic, team-oriented environment.

What does a project assistant do?

A project assistant supports project managers and teams by coordinating schedules, preparing reports, managing documentation, and tracking project progress. They often use tools like Microsoft Office and project management software to ensure tasks are completed on time. Strong organizational and communication skills are essential for this role.

What are the key skills and qualifications needed to thrive as a project assistant, and why are they important?

To thrive as a Project Assistant, you need strong organizational skills, attention to detail, and a foundational understanding of project management principles, often supported by a relevant degree or coursework. Familiarity with project management software like Microsoft Project, Asana, or Trello, and proficiency in MS Office Suite are typically expected. Excellent communication, teamwork, and time management skills help you support project managers and coordinate among stakeholders effectively. These skills ensure projects run smoothly, deadlines are met, and teams stay aligned on objectives.

Is a project assistant a good entry-level job?

A project assistant role is often considered a good entry-level job because it provides exposure to project management processes, teamwork, and organizational skills. It typically requires basic administrative skills and may involve using tools like MS Office or project management software, making it suitable for those starting their careers in a professional environment.

What is a project assistant?

A project assistant provides support to the project team and helps make sure projects get done on time and budget. They answer to the project manager or project administrator or a company director. Job duties include handling communication with everyone on the project team, creating and filing documentation, preparing reports, and serving as a liaison between management and the project team. Other responsibilities may include setting up office equipment—such as computers, printers, and webcams for online conference calls, scheduling meetings and check-ins, and managing the project calendar.

What is the difference between Project Assistant vs Administrative Assistant?

AspectProject AssistantAdministrative Assistant
Required CredentialsHigh school diploma; some roles may prefer associate's degree or relevant certificationsHigh school diploma; often no specific certifications required
Work EnvironmentProject sites, offices, collaborative team settingsOffice settings, administrative departments
Employer & Industry UsageConstruction, IT, consulting, engineeringCorporate offices, government agencies, nonprofits
Common Search & ComparisonOften compared for support roles in projectsCompared for general office support roles

The Project Assistant and Administrative Assistant roles share similarities in supporting organizational functions, but Project Assistants focus more on supporting specific projects, often requiring knowledge of project management processes. Administrative Assistants handle broader administrative tasks across departments. Both roles are essential in various industries, but their focus and work environments differ slightly.

Infographic showing various Project Assistant job openings in Tamuning, GU as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $39,417 per year, or $19 per hour.

Administrative Project/Office Coordinator

HDR

Hagatna, GU • On-site

$18 - $24/hr

Full-time

Posted 11 days ago


HDR rating

9.1

Company rating: 9.1 out of 10

Based on 57 frontline employees who took The Breakroom Quiz

40th of 446 rated engineering


Job description

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world?

At HDR, our employeeownership model shapes everything we do, including how we support and care for our people. Our diverse service lines, including Water, Architecture, Building Engineering Services, Field Services, Power, Waste, Industrial, and Transportation reflect our commitment to shaping resilient, sustainable, and forwardthinking communities around the world. Across these disciplines, our teams design and deliver solutions that safeguard public health, enhance quality of life, power innovation, and drive responsible growth. Whether advancing clean water, creating healing and learning environments, engineering nextgeneration facilities, or building the infrastructure that moves people and energy, our work is rooted in technical excellence and a shared sense of purpose. Our employeeowners collaborate across specialties, combining creativity, precision, and deep expertise to solve the most complex challenges facing our clients and communities
Watch Our Story:' https://www.hdrinc.com/our-story' 
Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world. 

The Administrative Project / Office Coordinator provides administrative, project, and office management support to Project Managers and project teams while ensuring the efficient day-to-day operation of the office. This role is responsible for project documentation, coordination of meetings and client communications, office administration, facilities coordination, vendor management, and maintaining organized systems that support business operations and project delivery.

In the role of Administrative Project/Office Coordinator, we'll count on you to: 
 

Project Coordination & Administrative Support

  • Type, format, organize, and maintain project documents, reports, specifications, correspondence, and other project records.

  • Create, maintain, and manage both electronic and paper filing systems in accordance with company quality assurance and document control procedures.

  • Provide administrative support for multiple Project Managers, Construction Managers, and project teams simultaneously.

  • Manage office and project supply inventories, coordinate purchasing, and ensure resources are available to support project needs.

  • Assist Project Managers and Construction Managers with project documentation and document management activities utilizing platforms such as Newforma, ProjectWise, Procore, and other project management systems.

  • Coordinate project logistics and support the planning, scheduling, and execution of project activities.

  • Monitor project team deliverables and assist Project Managers in tracking submission deadlines to ensure timely and compliant project deliverables.

  • Assist Project Managers with project management activities, including schedule tracking, budget monitoring, invoicing, expense reporting, and financial reporting.

  • Coordinate project meetings, prepare agendas, record meeting discussions, and produce accurate meeting minutes, action items, and follow-up documentation.

  • Assist with project guides, project reviews, proposals, presentations, and client deliverables.

  • Support marketing and business development efforts through proposal production, formatting, assembly, and delivery.

  • Maintain professionalism and build positive working relationships with clients, consultants, subcontractors, vendors, and internal team members.

  • Assist with contract administration activities, including review and processing of contracts, subcontracts, subcontractor invoices, insurance certificates, and other project-related documentation.

  • Exercise diligence in managing project details, priorities, schedules, and deadlines while ensuring a high level of accuracy and attention to detail.

  • Perform other project coordination and administrative duties as assigned. 

Office Coordination & Operations

  • Coordinate daily office operations to ensure an efficient, organized, and professional work environment.

  • Serve as the primary point of contact for visitors, vendors, building management, and service providers.

  • Manage office supply inventory and coordinate purchasing to maintain appropriate stock levels.

  • Coordinate office maintenance requests and facilities-related issues.

  • Manage incoming and outgoing mail, packages, and courier services.

  • Support onboarding activities, including workspace preparation, office orientation, badge access coordination, and equipment requests.

  • Assist with invoice processing, purchase orders, expense reporting, and vendor management.

  • Maintain office records and administrative documentation in compliance with company policies.

  • Support employee engagement initiatives and contribute to a positive workplace culture.

  • Ensure confidentiality when handling sensitive employee and business information.

  • Assist in maintaining office safety procedures and emergency preparedness requirements.

Preferred Qualifications

  • Bachelor's degree in Business Administration, Communications, Project Management, or a related field.

  • Experience supporting engineering, architecture, construction, consulting, or professional services projects.

  • Experience coordinating office operations, facilities, vendors, and administrative services.

  • Knowledge of contracts, subcontracts, and invoice processing.

  • Experience with project management or document management systems.

  • Exceptional attention to detail with the ability to produce accurate, high-quality work.

  • Strong prioritization and organizational skills, with the ability to effectively manage competing deadlines and multiple responsibilities.

  • Demonstrated ability to learn and adapt quickly to new software, systems, processes, and technologies.

  • Proactive problem-solving skills and the ability to work independently while maintaining a high level of professionalism and customer service.

  • Candidates currently residing in Guam will be given preference.

Required Qualifications
  • Associate degree in a closely related field or combination of education and relevant experience
  • A minimum of 1 years related experience
  • Proficiency in Microsoft Word and Excel
  • An attitude and commitment to being an active participant of our employee-owned culture is a must

What We Believe
HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.
Our Commitment
As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.
Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.


What HDR employees say

Pay

Benefits

Hours and flexibility

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Get the full story on Breakroom


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About HDR

Sourced by ZipRecruiter

At HDR, we specialize in engineering, architecture, environmental and construction services. While we are most well-known for adding beauty and structure to communities through high-performance buildings and smart infrastructure, we provide much more than that. We create an unshakable foundation for progress because our multidisciplinary teams also include scientists, economists, builders, analysts and artists.

Industry

Specialized design services

Company size

5,001 - 10,000 Employees

Headquarters location

Omaha, NE, US

Year founded

1917