110 Advertising Public Relations Jobs in Costa Mesa, CA

Updated daily. Most recent posting: November 11, 2026.

Social Media & Content Specialist

The Social Media & Content Specialist will plan and manage social channels, create and publish content, engage audiences, and use analytics to optimize performance. The role also supports executive thought leadership, campaigns, awards, and corporate communications....

El Segundo , California Consertus
Social Media Manager Intern - Summer 2027

The Global Social Media Intern will help Riot Games plan and execute player-focused social campaigns and communications across global and regional teams. The role also supports social channel operations, content coordination, community monitoring, and cross-functional project requests....

Remote (Los Angeles, California) Riot Games, Inc.
Account Director, Beauty & Lifestyle

The Account Director will lead 360-degree communications strategies for beauty and lifestyle brands at a global agency. The role involves providing executive counsel, managing high-profile launches, and integrating earned media with social-first storytelling....

Los Angeles, California Sunshine Sachs Morgan & Lylis
Assistant Account Executive, Influencer & Celebrity Relations

Supports influencer and celebrity relations strategies for beauty and wellness clients, including talent outreach, gifting, social campaign logistics, events and press releases. Tracks social metrics and contributes to client reports and creative activation ideas....

Los Angeles, California BPCM
Manager, Social Media & Strategic Communications

Leads Castelion's social media strategy and strategic communications across platforms including LinkedIn, X, YouTube, and Instagram. The role develops editorial plans and creates timely, technically accurate content for audiences spanning defense, technology, policy, investors, and prospective emplo...

Torrance, California Castelion
Communications and PR Manager

The Communications and PR Manager will develop and execute integrated communications and public relations strategy for UC Irvine School of Law. The role promotes the school’s brand through media relations, internal and external communications, website content, social media, and other communications ...

Irvine, California UC Irvine
Public Communications Coordinator

The Public Communications Coordinator will develop, edit, and distribute research communications across websites, newsletters, social media, and print materials. The role also coordinates with project stakeholders and helps shape outreach strategies to grow the research project’s audience....

Los Angeles, California University of Southern California
Alumni Marketing and Communications Specialist

Develops and implements marketing and communications campaigns to engage CSULB alumni through email, social media, and web content. Promotes alumni programs and events, coordinates creative projects with Strategic Communications, and tracks engagement metrics to refine messaging....

Long Beach, California California State University
Account Executive, Talent & Influencer Integration - Nonprofit

The Account Executive will execute talent and influencer strategies for nonprofit, NGO, and advocacy clients, coordinating outreach and storytelling with talent representatives and digital creators. The role blends public relations with social-first campaigns to raise awareness and support civic eng...

Los Angeles, California Sunshine Sachs Morgan & Lylis
Director, Public Relations

The Director of Public Relations will lead and execute Voyager Technologies’ PR strategy, securing media coverage and building relationships with journalists across broadcast, print, and trade outlets. The role includes pitching company milestones, managing media requests, collaborating across commu...

Los Angeles, California Voyager Technologies
Public Communications Coordinator

The Public Communications Coordinator will develop, edit, and distribute research communications across websites, newsletters, social media, and print materials. The role also coordinates stakeholders and helps shape outreach strategies to grow the project’s audience....

Los Angeles, California University of Southern California (USC)
Communications Coordinator

The Communications Coordinator supports strategic external and internal communications for Anduril’s Connected Warfare division. Responsibilities include media outreach, product and contract announcements, social content, executive thought leadership, and translating technical concepts for broader a...

Costa Mesa, California Anduril
Sr. Manager, PR & Entertainment Marketing

Leads Vuori’s public relations and entertainment marketing strategy, including earned media, brand storytelling, press outreach, and cultural visibility. The role also manages external agency partners and collaborates with marketing, influencer, social, and activation teams....

Los Angeles, California Vuori, Inc
Account Manager, Consumer Tech & Brand

Sunshine Sachs Morgan & Lylis is seeking an experienced Account Manager to lead public relations and communications strategies for consumer technology and lifestyle clients. The role involves managing day-to-day account operations, executing integrated media campaigns, and leveraging media contacts ...

Los Angeles, California Sunshine Sachs Morgan & Lylis
Internal Communications Coordinator

The Internal Communications Coordinator drafts and distributes organizational messages, maintains intranet content and communication channels, and supports the internal communications team. The role collaborates with leaders and teams to keep employees informed and engaged....

redondo beach, California Easter Seals
Director of Brand Marketing

Leads brand marketing for a pre-launch wellness technology brand, developing integrated launches and campaigns across social media, PR, ambassadors, partnerships, and community. The role manages social and community teams and builds programs to grow brand awareness and credibility....

Tustin, California VeSync
Communications Agent- Immediate Start

The Communications Agent represents brands in person, shares product and promotional information, and engages with customers to support brand awareness. The role also gathers customer feedback and contributes to campaign and event initiatives....

Los Angeles, California Zolidco
Vice President, Creator Marketing

The Vice President, Creator Marketing leads creator marketing strategy and programs for agency clients, advising senior stakeholders and translating cultural and platform trends into brand recommendations. The role also supports business growth, operational effectiveness, and team development....

Los Angeles, California Edelman
Senior Communications Specialist (Internal Communications)

Develops and implements strategic internal communications for employees and other audiences at Cedars-Sinai. The role writes, edits, and publishes stories, announcements, FAQs, and other materials, while coordinating communications projects and supporting internal publications and digital content....

Los Angeles, California Cedars-Sinai
Public Relations Coordinator

The Public Relations Coordinator will develop and distribute press materials, build media relationships, and coordinate interviews, events, and PR campaigns. The role also manages social media messaging and monitors coverage to assess campaign effectiveness....

Los Angeles, California SharpContra
Job Types
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