Talent Acquisition Senior Associate (Temporary 6-12 months) Heredia, Costa Rica As a temporary Talent Acquisition Senior Associate, you will help create and execute hiring strategies for experienced talent. In a challenging hiring market, you wi...
The Designer is responsible for supporting the execution of high-quality digital and web design deliverables, contributing to the maintenance, enhancement, and optimization of existing websites and digital experiences. This role focuses on creating vis...
As a Freelance Senior Designer, you will develop breakthrough creative concepts that translate visually across interactive platforms for web-based marketing initiatives and product launches. You're an original thinker and collaborative leader—matching...
Are you a seasoned UX Writer who is passionate about delivering elevated digital experiences through useful, meaningful copy? One of Critical Mass' clients is looking for a Senior UX Writer who is exceptional at driving the direction of content and cre...
Are you a seasoned UX Writer who is passionate about delivering elevated digital experiences through useful, meaningful copy? One of Critical Mass' clients is looking for a Senior UX Writer who is exceptional at driving the direction of content and cre...
Are you a seasoned UX Writer who is passionate about delivering elevated digital experiences through useful, meaningful copy? One of Critical Mass' clients is looking for a Senior UX Writer who is exceptional at driving the direction of content and cre...
The Senior Production Copywriter ensures all work from the copy team flows efficiently between internal creative and production departments. You will drive the on-time delivery of assets and act as a champion for client standards, ensuring that all fin...
The Senior Production Copywriter ensures all work from the copy team flows efficiently between internal creative and production departments. You will drive the on-time delivery of assets and act as a champion for client standards, ensuring that all fin...
This role is being posted on the Critical Mass job board on behalf of Tribal Worldwide, part of Omnicom Group's DDB Worldwide. The successful candidate will join Tribal Worldwide as an employee.
Tribal is a creative force that ble...
We're looking for a Senior Designer who can operate in two gears simultaneously: campaign thinker and systems builder. You bring the creative instinct to develop compelling, on-brand campaigns and the structural thinking to build the templates, compone...
The Critical Mass technology team is looking for an inspired, motivated, and experienced Senior Developer to join our Communications team for a contract engagement. We are an experience design agency with a focus on the customer, which means that colla...
The Critical Mass technology team is looking for an inspired, motivated, and experienced Senior Developer to join our Communications team for a contract engagement. We are an experience design agency with a focus on the customer, which means that colla...
Are you ready to drive positive change and make a lasting impact? We're looking for a dynamic HR Business Partner to join our Human Resources team in Heredia, Costa Rica as a temporary employee for 12 months. As our HR Business Partner, you'll p...
As a Marketing Science Lead, you are endlessly curious, always asking the next question to demonstrate the value of marketing science to internal and external stakeholders. With 5 to 8 years of experience leading marketing science projects, you have de...
As an Associate Media Planner, you are eager to dive into the world of media trafficking, reporting and implementation, and hit the ground running with support from the Media team. With guidance from your Media Director, you’re ready to break into the...
As a Senior Social Strategist at Critical Mass, you'll be the strategic lead driving social initiatives for key organizational clients. The right candidate for this role will know how to mine complex data sets, then research and transform them into act...
As a Senior Social Strategist at Critical Mass, you'll be the strategic lead driving social initiatives for key organizational clients. The right candidate for this role will know how to mine complex data sets, then research and transform them into act...
As a Freelance Senior Designer, you will develop breakthrough creative concepts that translate visually across interactive platforms for web-based marketing initiatives and product launches. You're an original thinker and collaborative leader—matching...
As a Senior Social Strategist at Critical Mass, you'll be the strategic lead driving social initiatives for key organizational clients. The right candidate for this role will know how to mine complex data sets, then research and transform them into act...
The Senior Creative Engineer leads and executes high-quality production design deliverables across digital platforms, ensuring efficiency, accuracy, and innovation. This role requires a strong ability to manage and deliver complex, multi-channel digita...
The Art Director is responsible for conceptual development and the execution of creative deliverables. These responsibilities include creating and communicating concepts, implementing marketing strategies and developing interactive design solutions. Re...
The Creative Engineer is responsible for executing production design deliverables, including creating image assets, resizing display and social media banners, and refreshing digital layouts and templates. The Creative Engineer works as part of a larger...
Critical Mass London are looking for an experienced copywriter to come and join the team based in Southwark. As a Senior Copywriter, you are a seasoned storyteller who loves to collaborate with creatives and strategists to bring a digital voice t...
The Art Director is responsible for conceptual development and the execution of creative deliverables. These responsibilities include creating and communicating concepts, implementing marketing strategies and developing interactive design solutions. Re...
As a Freelance Art Director, you’re excited to join a creative team to develop experiences that improve customers’ lives. Leading major marketing initiatives is what keeps bringing you back to the office—including championing concepts to plan cutting-e...
As a Senior Art Director, you’re excited to join a growing creative team to develop experiences that improve customers’ lives. Leading major marketing initiatives is what keeps bringing you back to the office—including championing concepts to plan cutt...
Technology Director San José, Costa Rica As the Technology Director, you are a visionary technical leader who oversees platform development and guides technical evolution. You lead Tech Leads, Frontend/Backend Developers, QA, DevOps,...
As a Media Planner, you are eager to dive into the world of media trafficking, reporting and implementation, and hit the ground running with support from the Media team. You bring a passion for Media to the office, and your enthusiastic personality mak...
Critical Mass is hiring a Senior Account Manager to join our team on ArtBot! ArtBot is a next-generation content orchestration platform, combining creative and performance engineering with AI-driven technology to unlock automation and performance at sc...
Critical Mass is looking for a Senior Creative Strategist to come and join our amazing ArtBot team! ArtBot is Omnicom’s next-generation intelligent content orchestration, decisioning and optimization solution. We operate as a horizo...
Critical Mass is hiring a Creative Strategist to join our amazing ArtBot team! ArtBot is Omnicom’s next-generation intelligent content orchestration, decisioning and optimization solution. We operate as a horizontal specialism that integrates seamlessl...
The Senior Designer is responsible for creating high-quality digital and CRM-focused creative solutions that support customer communications. This role combines strong visual design skills, production accuracy, and systems thinking to deliver engaging,...
We are looking for a highly motivated Senior Project Manager to join our Delivery team. This role is critical in supporting ongoing maintenance and sunsetting initiatives across shared platforms that support multiple business units. The ideal candidate...
As an Account Manager, you’ll flex your skills in growing and managing client relationships while receiving support and strategic guidance from an Account Director or Client Partner. You’ll take the lead on projects within your vertical client set, ens...
As a Director of Marketing Science your curiosity never ends. The next question is always on your mind, helping you to demonstrate the value of analytics to internal and external stakeholders. You bring 10+ years of experience, setting the vision and b...
As a Director of Marketing Science your curiosity never ends. The next question is always on your mind, helping you to demonstrate the value of analytics to internal and external stakeholders. You bring 10+ years of experience, setting the vision and b...
As a Marketing Science Lead, you are endlessly curious, always asking the next question to demonstrate the value of marketing science to internal and external stakeholders. With 5 to 8 years of experience leading media analytics projects, you have deve...
Critical Mass is looking for a motivated and detail-oriented Project Coordinator to come and join the team. This is an ideal role for someone early in their project management career who is eager to learn, highly organised, and a strong commu...
As a Project Manager, Media, you are responsible for assisting in the successful delivery of performance marketing campaigns. You thrive in a fast-paced environment, seamlessly moving across compet...
The Vice President, Business Development is an entrepreneurial self-starter with exceptional interpersonal and communication skills, and extensive experience developing complex new business strategies for Fortune 100 brands. This individual should have...
Critical Mass is looking for a motivated and detail-oriented Project Coordinator to come and join the team. This is an ideal role for someone early in their project management career who is eager to learn, highly organised, and a strong communicator....
The Senior Designer is responsible for leading the execution of high-quality visual and interactive web design solutions, driving the successful delivery of large-scale website redesigns and scalable digital experiences. This role combines strong visua...
The Front-End Developer (FED) is responsible for completing front-end tasks and providing support to AEM web applications. The FED is able to work independently in basic tasks, assuming ownership for the design and programming required. For more compl...
Critical Mass is hiring an Account Director to lead marketing campaigns for a leading automotive brand. This is a hands-on leadership role embedded with the client, where your ability to deliver excellence in execution, maintain trusted relationships,...
The Front-End Developer (FED) is responsible for completing front-end tasks and providing support to AEM web applications. The FED is able to work independently in basic tasks, assuming ownership for the design and programming required. For more compl...
Critical Mass is looking for an exceptional VP, Strategy to lead strategic initiatives across a dynamic portfolio of premium brands and accounts spanning performance marketing, brand building, and customer experience domains. In this role, you'll...
As a Senior Art Director, you are excited to join a large creative team to develop experiences that support one of the oldest brands in America. Leading major marketing initiatives is what keeps bringing you back to the office—including championing con...
The Front-End Developer (FED) is responsible for completing front-end tasks and providing support to web applications. The FED is able to work independently in basic tasks, assuming ownership for the design and programming required. For more complex wo...
We seek a highly skilled and experienced General Accountant to join our dynamic finance team in San José, Costa Rica. This role will be instrumental in ensuring the accuracy and integrity of our financial reporting, managing complex accounting processe...
As an Associate Media Planner, you are eager to dive into the world of media trafficking, reporting and implementation, and hit the ground running with support from the Media team. With guidance, you’re ready to break into the digital media landscape a...
The Designer is responsible for the execution of visual design deliverables while actively contributing to the successful implementation of design solutions for marketing/communication campaigns and digital experiences that benefit people and clients....
The Project Manager reports to a Program Manager. Works closely with Directors and Subject Matter Experts, designers, developers and quality to ensure flawless project execution, efficient resource allocation, project financial sanity and client satisf...
This role is part of the team responsible for delivering enterprise-level digital solutions using Adobe Experience Manager (AEM). The Back End Developer will act as a key contributor, providing expertise in AEM Cloud and Java develo...
As a Designer, you’re eager to contribute to the development of creative concepts through visual design. You have original ideas and you’re a team player - taking in strategy and direction and translating it into design across digital experiences. You...
As a Designer, you’re eager to contribute to the development of creative concepts through visual design. You have original ideas and you’re a team player - taking in strategy and direction and translating it into design across digital experiences. You...
Critical Mass' Internship opportunities are part of our Trailhead Program and will provide a 12-week jump-start to your career. The program is a fast-track to launch your career through regular learning opportunities, mentorship, client work exposure,...
The Senior Social Strategist is the day‐to‐day steward on the business and is on the front lines of developing and activating both tactical and custom digital recommendations to meet our clients’ goals. They are a Digital native, curious about unique e...
Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful...
Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful...
The Project Coordinator is responsible for supporting the successful delivery of digital marketing campaigns, working closely with cross-functional, multi-project teams to ensure deliverables are completed on time and on budget, according to defined sc...
The Project Coordinator is responsible for supporting the successful delivery of digital marketing campaigns, working closely with cross-functional, multi-project teams to ensure deliverables are completed on time and on budget, according to defined sc...
Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful...
Critical Mass’ Internship opportunities are part of our Trailhead Program and provide a 12-week jump-start to your career. The program is designed to fast-track your growth through regular learning opportunities, mentorship, and hands-on client work&nb...
As VP of Search, you’ll set the vision and direction for our global Search practice—leading best-in-class SEO, SEM, and Generative Engine Optimization (GEO) strategies across a diverse portfolio of clients and regions. You are the global leader and poi...
As VP of Search, you’ll set the vision and direction for our global Search practice—leading best-in-class SEO, SEM, and Generative Engine Optimization (GEO) strategies across a diverse portfolio of clients and regions. You are the global leader and poi...
As VP of Search, you’ll set the vision and direction for our global Search practice—leading best-in-class SEO, SEM, and Generative Engine Optimization (GEO) strategies across a diverse portfolio of clients and regions. You are the global leader and poi...
As VP of Search, you’ll set the vision and direction for our global Search practice—leading best-in-class SEO, SEM, and Generative Engine Optimization (GEO) strategies across a diverse portfolio of clients and regions. You are the global leader and poi...
As Social Strategy Director, you'll be the strategic leader and trusted advisor onsite with one of our key clients in Nashville. The right candidate for this role will know how to develop and articulate compelling social strategy while leading the crea...
As a User Experience Designer, you’ll shape the user experience of our clients’ digital products with a focus on intuitive, elegant, and technically sound solutions. You’ll bring deep empathy for both the end user and our clients’ business goals while...
As the VP of Media, you will lead the development and execution of media strategies across key client accounts. The ideal candidate brings over 10 years of diverse media experience, with a strong emphasis on digital, and has a proven track record of ma...
As the VP of Media, you will lead the development and execution of media strategies across key client accounts. The ideal candidate brings over 10 years of diverse media experience, with a strong emphasis on digital, and has a proven track record of ma...
As the VP of Media, you will lead the development and execution of media strategies across key client accounts. The ideal candidate brings over 10 years of diverse media experience, with a strong emphasis on digital, and has a proven track record of ma...
The Senior Project Manager (Account Operations) supports Credera’s most strategic and complex client accounts by providing enhanced financial governance, operational oversight, and executive-ready reporting. This role serves as the primary Account...
We are looking for a highly motivated Project Manager to join our Delivery team. This role is critical in supporting the successful delivery of multiple projects, ranging from small to complex, across a variety of clients and industries. As a Project M...
As a Senior Strategist, you will design and orchestrate high‑impact performance systems that connect media, creative, audience strategy, and MarTech. You will ensure testing frameworks are sound, signals are reliable, and insights drive clear optimizat...
As a Senior Strategist at CM, you'll serve as a strategic orchestrator bringing together insights, creativity, and channel expertise into cohesive, omni-channel, high-impact campaigns and digital experiences. You're the connective tissue between our cr...
As a Senior User Experience Designer, you determine the user experience of our clients’ digital products. You have acute self-awareness and deep empathy for both the customer and our clients' goals. Organizing content, developing information architectu...
This role is for a post-production expert, with experience in motion graphics, editorial, VFX and general post-production pipelines. You will be working with global clients across some of the biggest brands in the world. Your role will range from...
Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful...
Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful...
Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful...
Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful...
As a Marketing Science Senior Analyst, you will co-lead the design and execution of measurement strategies, advanced analytics, and content intelligence programs that drive media performance in B2B environments. You will partner with stakeh...
Critical Mass is hiring for a contract Project Manager. This is a hands-on contract role on a fast-paced comms team creating impactful digital marketing material for prominent products and campaigns. You'll manage projects with real scope, meaningful t...
This QA role is responsible for ensuring that quality assurance standards and client satisfaction are delivered throughout the product lifecycle. You will execute structured QA activities — including Functional, Smoke, Regression, and Exploratory testi...
Critical Mass is seeking a results-driven Senior Account Manager to work on one of our largest automotive accounts. Based in New York, you’ll collaborate closely with internal teams and the client to deliver impactful digital solutions for a leading gl...
As a Freelance Senior Designer, you will develop breakthrough creative concepts that translate visually across interactive platforms for web-based marketing initiatives and product launches. You're an original thinker and collaborative leader—matching...
Associate Marketing Science Analyst As an Associate Marketing Science Analyst, your curiosity never ends. The next question is always on your mind, helping you to understand how marketing science fits in the big picture of a project. Yo...
Role Overview This role is responsible for executing on the account and office-level vision and priorities within the organization. The main output of this role is to own Marketing Science deliverables across a broad range of initiatives. Career develo...
Marketing Science Analyst (Test & Learn) San Jose, Costa Rica As a Marketing Science Analyst, your curiosity never ends. The next question is always on your mind, helping you to understand how marketing science fits in the big picture of a project....
Marketing Science Lead, Implementation As a Marketing Science Lead, your curiosity never ends. The next question is always on your mind, helping you demonstrate the value of marketing science to internal and external stakeholders. You bring in 5 to 8 y...
Role Overview This role is responsible for leading the execution of the account and office-level vision and priorities within the organization. The main output of the role is to deliver Marketing Science projects, deliverables, and related work to clie...
We are hiring a Senior Media Planner to lead, manage, and execute our clients' interactive marketing strategies. You’ll be responsible for planning, trafficking, and optimizing campaigns across various digital channels—such as paid search, display...
As the Media Director, you'll lead strategic media planning and execution to drive business performance, while building strong relationships with clients across all facets of the organization. You’ll set media objectives, manage client relationships, a...
We are looking to add Freelance Lead User Experience Designers to our Talent Roster for quick turnaround, shorter-term project engagements! As Lead User Experience Designer, you're the rare leader who thinks like both a strategist and an artist. Y...
As a Lead User Experience (UX) Designer, you help determine the experience architecture of our clients’ digital products. Combining stellar UX and analytical skills, you take ideas from conception to execution—collabo...
We are looking to add Freelance Lead User Experience Designers to our Talent Roster for quick turnaround, shorter-term project engagements! As Lead User Experience Designer, you're the rare leader who thinks like both a strategist and an artist. Y...
We are looking to add Freelance Associate Creative Directors to our Talent Roster for quick turnaround, shorter-term project engagements! As an Associate Creative Director, you bring a creative voice with strategic thinking to projects. You have a dive...
We are looking to add Freelance Associate Creative Directors to our Talent Roster for quick turnaround, shorter-term project engagements! As an Associate Creative Director, you bring a creative voice with strategic thinking to projects. You have a dive...
The Media Supervisor role is responsible for leading the planning, management and execution of client’s media strategy in order to maximize client branding and business objectives. This person must have in depth knowledge of many media channels includi...
As Senior Paid Search Strategist, you will own the creation, execution, and optimization of paid search campaigns, acting as the strategic SEM lead and advisor for a major international brand. You’ll provide leadership and expertise in account structur...
Director of User Experience As Director of User Experience, you're the rare leader who thinks like both a strategist and an artist. You speak fluent UX—information architecture, research, usability—but you also speak design—visual systems, motion, art...
Director of User Experience As Director of User Experience, you're the rare leader who thinks like both a strategist and an artist. You speak fluent UX—information architecture, research, usability—but you also speak design—visual systems, motion, art...
Director of User Experience, Contract As Director of User Experience, you're the rare leader who thinks like both a strategist and an artist. You speak fluent UX—information architecture, research, usability—but you also speak design—visual systems, mo...
Director of User Experience, Contract As Director of User Experience, you're the rare leader who thinks like both a strategist and an artist. You speak fluent UX—information architecture, research, usability—but you also speak design—visual systems, mo...
Director of User Experience, Contract As Director of User Experience, you're the rare leader who thinks like both a strategist and an artist. You speak fluent UX—information architecture, research, usability—but you also speak design—visual systems, mo...
As a Copywriter, you are a short storyteller who loves to collaborate with creatives and strategists to bring a digital voice to life. You’ve got the basics of site copy, banner ads and direct e-mails. Crafting short-form narratives for campaign creati...
As a Copywriter, you are a short storyteller who loves to collaborate with creatives and strategists to bring a digital voice to life. You’ve got the basics of site copy, banner ads and direct e-mails. Crafting short-form narratives for campaign creati...
As a Creative Director, you couple a strong creative voice with strategy and product thinking to lead performance marketing and design framework initiatives. Balancing creative thinking, political acumen, and organizational/process savvy, you deve...
We’re looking for a Creative Engineer — a creative problem solver with a strong design foundation and a systems-driven mindset. This role sits at the intersection of design, technology, and automation. You’ll help bring client bran...
This role is responsible for executing on the account and office-level vision and priorities within the organization. The main output of the role is to lead Marketing Science deliverables across a broad range of initiatives. Career develop...
This role is part of the team responsible for delivering enterprise-level digital solutions using Adobe Experience Manager (AEM). The Back End Developer will act as a key contributor, providing expertise in AEM Cloud and Java development, and supp...
Critical Mass’ Internship opportunities are part of our Trailhead Program and provide a 12-week jump-start to your career. The program is designed to fast-track your growth through regular learning opportunities, mentorship, and hands-on client work&nb...
The Comms Planning Director partners across disciplines to create communication plans that translate marketing objectives into actionable go-to-market strategies grounded in audience understanding and business goals. In partnership with strategy,...
The Comms Planning Director partners across disciplines to create communication plans that translate marketing objectives into actionable go-to-market strategies grounded in audience understanding and business goals. In partnership with strategy,...
As a Copywriter, you are a short storyteller who loves to collaborate with creatives and strategists to bring a digital voice to life. You’ve got the basics of site copy, banner ads and direct e-mails. Crafting short-form narratives for campaign creati...
Associate Creative Engineer As an Associate Creative Engineer, you are skilled in digital design at high scale. You will work with an amazing team of creatives to make sure that artwork is designed at scale according to our client’s brand guidelines. Y...
As an Associate Design Director, you bring a strong creative opinion, informed by strategy and past results to lead performance marketing initiatives. Balancing visual language, narrative structure and design process, you deve...
As Associate Director of User Experience, you are accountable for the quality, clarity, and direction of UX across multiple high-visibility initiatives. You help define how UX thinking shows up in work, teams, and stakeholder relationships—setting stan...
We are seeking an Associate Media Director to be hands-on in planning and activation for both online and offline strategies for a new client in the B2B space. The Associate Director is responsible for driving media strategy and ensuring the program mee...
We are seeking an Associate Media Director to be hands-on in planning and activation for both online and offline strategies for a new client in the B2B space. The Associate Director is responsible for driving media strategy and ensuring the program mee...
The Account Manager has responsibility for managing and growing the client relationship on one or more accounts under the direction of an Account Director or VP, Client Partner. The Account Manager provides client and project team leadership, develops...
The Art Director is responsible for conceptual development and the execution of creative deliverables. These responsibilities include creating and communicating concepts, implementing marketing strategies and developing interactive design solutions. Re...
The Art Director is responsible for conceptual development and the execution of creative deliverables. These responsibilities include creating and communicating concepts, implementing marketing strategies and developing interactive design solutions. Re...
The Art Director is responsible for conceptual development and the execution of creative deliverables. These responsibilities include creating and communicating concepts, implementing marketing strategies and developing interactive design solutions. Re...
Project Manager profilesCritical Mass is an equal opportunity employer. Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases,...
ACCOUNT COORDINATOR The Account Coordinator is the “right-hand” person reporting to the Account Manager and/or VP, Client Partner. This person will be an integral part of the Account Management team in the organization of agendas, responding appropriat...
Join Critical Mass as an Account Director to lead a pivotal year of website management for a leading automotive brand. This is a hands-on leadership role embedded with the client, where your ability to deliver excellence in execution, maintain trusted...
As an Account Manager at Critical Mass, you are a key partner to both clients and colleagues, playing an essential role in managing day-to-day business needs, driving projects forward, and building strong relationships. With support and mentorship from...
Critical Mass is hiring an Account Manager to join our team on ArtBot! ArtBot is a next-generation content orchestration platform, combining creative and performance engineering with AI-driven technology to unlock automation and performance at sc...