Criticalmass

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, and oversee campaign execution across key platfor

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 testing — to validate that features work as expected,

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 point of contact for Search within the agency, resp

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 balancing creativity and technical feasibility.

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 creative partners, media team, CRM specialists, an

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 creating sizzle reels, to managing extensive p

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 development is typically provided by Marketing Science

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 clients across a broad range of initiatives. Career

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. You bring in 1 to 3 years of experience, owning

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 development is typically provided by Marketing Science

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 scale. We specialize in data-driven, personalized

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. Reporting to the Creative Director, the Art Direct

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. Reporting to the Creative Director, the Art Direct

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. Reporting to the Creative Director, the Art Direct

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 strategic direction with elegant design solution

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 point of contact for Search within the agency, resp

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, media, creative, and marketing science, you wil

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, media, creative, and marketing science, you wil

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 scope, and the opportunity to make an immediat

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 processes, and providing crucial support to the financia