Marketing and Office Assistant

Robert Half's construction client is looking for a Marketing Assistant to join a construction industry team in Walnut Creek, California. This contract-to-permanent opportunity is ideal for someone who enjoys balancing marketing coordination with administrative support in a fast-paced office setting. In this role, you will contribute to proposals, promotional materials, social media activity, event planning, and day-to-day executive support while gaining the opportunity to grow within a dynamic work environment.

Marketing Assistant Responsibilities:

• Develop and format proposals, presentation decks, qualification packages, and other branded materials with a strong eye for accuracy and visual consistency.

• Refresh and organize marketing content such as staff bios, project summaries, case studies, and collateral used for business development efforts.

• Support content development by researching information, editing copy, and preparing materials needed for client-facing submissions and campaigns.

• Coordinate social media activity by preparing posts, managing publishing schedules, and helping maintain an active presence across key platforms.

• Maintain marketing and sales support resources, track ongoing initiatives, and assist with reporting related to engagement and campaign performance.

• Help organize corporate events, industry conferences, sponsorships, and networking activities by handling logistics, communications, and execution details.

• Provide administrative assistance to leadership through calendar coordination, meeting scheduling, travel planning, and related office support tasks.

• Assist with general office operations, respond to correspondence and inbound inquiries, and contribute to special projects as needed.

• Use business development, CRM, and AI-enabled tools to support marketing workflows, content preparation, and operational efficiency where appropriate.

If you are interested in this Marketing Assistant position, please submit your resume today!

Qualifications:

• At least 1 year of experience in an administrative, marketing, or office support role.
• Strong written communication skills with the ability to produce clear, well-prepared documents and correspondence.
• Proven organizational ability and attention to detail while managing multiple assignments and deadlines.
• Proficiency with Microsoft Office applications, including Outlook, Word, Excel, and PowerPoint.
• Experience with Adobe InDesign is strongly preferred.
• Familiarity with social media platforms, email marketing support, or CRM-related tools is an advantage.
• Sound judgment, initiative, and a willingness to learn in a collaborative office environment.
• Exposure to AI tools such as Microsoft Copilot, ChatGPT, or Claude is beneficial.

Compensation

$27.00-$37.00 Hourly

About Us

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Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

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All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

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