Jobs at Critical Mass

Positions 735,996

Critical Mass is a San Francisco‑based data‑science powerhouse that builds real‑time analytics engines for the financial sector. Its flagship product, MassFlow, processes millions of transactions per second using a microservices architecture on Kubernetes. The company has earned recognition for its open‑source contributions to the Apache Arrow community and for securing a Series C round that valued it at over $1 billion.

Critical Mass hires full‑stack engineers, data scientists, DevOps specialists, product managers and security analysts. New hires expect rigorous peer‑review coding, cross‑functional sprint ceremonies, and a culture of continuous learning that includes quarterly hackathons and paid certifications. The company offers a remote‑first policy, a 100‑hour annual training budget, and a transparent equity grant program.

Job Transparency’s listings provide Critical Mass candidates with real‑time salary ranges, interview difficulty ratings and employee sentiment scores. By comparing the disclosed compensation against the market benchmark and reading recent reviews, applicants can negotiate better offers and choose roles that match their career goals.

Senior Business Analyst - Contract

Company: Critical Mass

Location: Chicago IL

Posted Oct 18, 2022

The job description is for a Senior Business Analyst with experience in gathering and documenting product requirements, leading workshops, and communicating with stakeholders. The role requires strong analytical and organizational skills, as well as experience with technology project artifacts and solution management.

Senior Project Manager

Company: Critical Mass

Location: Nashville, TN

Posted Oct 07, 2022

Critical Mass is looking for a Senior Digital Project Manager to join their team. The job requires a creative and strategic thinker who can manage client relations, project delivery, and team communication. The ideal candidate has experience in digital project management, strong leadership skills, and a passion for client services and digital project delivery.

Associate DevOps Engineer

Company: Critical Mass

Location: Other US Location

Posted Oct 14, 2022

Critical Mass is offering a full-time permanent role for junior dev ops engineers. The company provides a custom-built learning journey, skill-building sessions, and opportunities to work with real clients. The role involves assisting with project implementation, testing, and deployment, as well as participating in ongoing maintenance activities.

Future Creative Openings

Company: Critical Mass

Location: Chicago IL

Posted Oct 13, 2022

Open to RemoteCritical Mass is a digital experience design agency with a focus on the customer. They offer services in Strategy Consulting, Experience Design, Marketing Communications, Implementation, and Marketing Science. The agency has been recognized as a leader in digital experience design and is always looking for talented industry creatives. They hire for various creative roles and are an equal opportunity employer committed to diversity and inclusion.

Senior Project Manager, Technical

Company: Critical Mass

Location: Other US Location

Posted Oct 13, 2022

The job posting is for a Senior Technical Digital Project Manager at Critical Mass. The role involves leading and managing feature delivery against a global product or platform, working with globally distributed cross-functional teams, and ensuring project plans align to Scope, RAID, and budget constraints. The ideal candidate should have a technical background and experience in working with large, componentized CMS platforms such as AEM. The company is an equal opportunity employer that is committed to diversity and inclusion in the workplace.

Freelance Senior Designer

Company: Critical Mass

Location: Chicago IL

Posted Oct 19, 2022

The job description is looking for a Senior Designer with creative and strategic skills, attention to detail, and leadership experience. The role involves designing solutions, managing projects, and guiding a team. The company, Critical Mass, is an equal opportunity employer committed to diversity and inclusion.

Associate Art Director, Social

Company: Critical Mass

Location: Silicon Valley CA

Posted Oct 14, 2022

Critical Mass is offering a full-time permanent role for a Trailhead program, which includes a custom-built learning journey, skill-building sessions, and opportunities to attend offsite socials and masterclass workshops. The company is committed to seeing the candidate thrive and grow their career.

Back & Front-End Developer

Company: Critical Mass

Location: Other US Location

Posted Oct 11, 2022

Critical Mass is looking for a driven Sr. AEM developer to join the BMW NA team. The job involves developing and maintaining Java services, managing integration points, and troubleshooting issues on the BMWUSA platform. The company values testing and documentation and offers a collaborative and fast-paced work environment.

Human Resources Intern

Company: Critical Mass

Location: Chicago IL

Posted Oct 07, 2022

Critical Mass is offering an internship program for students and recent graduates in HR focused post-secondary programs. The program includes training, onboarding, and employee experience. The company is committed to diversity and inclusion and offers a hybrid work model.

Senior Art Director

Company: Critical Mass

Location: South Bay

Posted Oct 12, 2022

The job description for an Art Director at Critical Mass includes responsibilities such as conceptual development, marketing strategies, and interactive design solutions. The role requires strong design portfolio, experience leading a team, and excellent communication skills.

Designer

Company: Critical Mass

Location: South Bay

Posted Oct 19, 2022

The job posting is for a Designer to work on apple.com and other interactive platforms. The ideal candidate has strong communication and design skills, experience leading a team, and knowledge of branding principles. The job requires proficiency in Photoshop, HTML, and attention to detail, and the ability to thrive in a fast-paced creative environment.

Frequently Asked Questions

What is it like to work at Critical Mass?
Working at Critical Mass means joining a collaborative, data‑driven environment that values experimentation. You’ll participate in daily stand‑ups, bi‑weekly hackathons, and monthly tech talks. The team embraces remote‑first flexibility, but also meets weekly in the San Francisco office for design sprints. Employees receive a 100‑hour training stipend and can earn equity through a quarterly grant schedule. Open‑source contributions are encouraged and often recognized in performance reviews.
What types of positions does Critical Mass offer?
Critical Mass has openings across engineering, product, and operations. Popular roles include Senior Backend Engineer (Python/Golang), Machine Learning Engineer, Cloud Infrastructure Architect, Product Manager (Analytics), and Security Analyst (Threat Intelligence). The company also hires Data Engineers, Front‑end Engineers, UX Researchers, and DevOps Specialists. Each role offers a hybrid work model and a competitive benefits package.
How can I stand out as an applicant for Critical Mass?
Showcase a portfolio that demonstrates real‑time data processing or distributed system design. Contribute to the company’s open‑source projects on GitHub or publish a blog post about a relevant tech topic. Provide metrics in your resume—e.g., reduced latency by 30% or improved throughput by 50%. Highlight experience with Kubernetes, Apache Arrow, or large‑scale analytics. Prepare for the interview by mastering system design, coding challenges, and aligning your answers with the company’s mission of delivering fast, trustworthy insights to financial clients.

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