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 Designer

Company: Critical Mass

Location: Other US Location

Posted Jul 28, 2023

The Critical Mass team in Cupertino works closely with the client, creating applications that drive one of the world's most trafficked websites. They play an active role in connecting the client's consumers globally through mobile, digital, and in-store experiences. The team is focused on launching new product landing pages for the client's site, with a major release every fall and smaller updates throughout the year. The team is looking for a Senior Designer to lead a small team, collaborate with both creative and tech disciplines, and create considered and elegant design solutions for the client's homepage and other platforms.

Account Director

Company: Critical Mass

Location: Nashville, TN

Posted Aug 01, 2023

The job description is for an Account Direct position at Critical Mass, a company that values diversity and inclusion. The role involves managing client relationships, leading projects, and providing leadership and guidance to team members. The ideal candidate has 6-10 years of experience in account management, with a strong understanding of CRM, content management, analytics, and digital marketing.

Technology Lead, Front End

Company: Critical Mass

Location: Other US Location

Posted Jun 22, 2023

None Found

Account Manager

Company: Critical Mass

Location: Other US Location

Posted Jun 30, 2023

None Found

Future Creative Openings

Company: Critical Mass

Location: Nashville, TN

Posted Jul 28, 2023

Critical Mass is a digital experience design agency with a focus on making complex things simple for clients and their customers. They offer various services including strategy consulting, experience design, marketing communications, implementation, and marketing science. The company is committed to building their network of talented industry creatives and offers opportunities for continuous learning, collaboration, and employee engagement. They are an equal opportunity employer that values diversity and inclusion in the workplace.

MES Sales North America SMT

Company: Critical Manufacturing

Location: Atlanta, GA

Posted Jun 09, 2023

Sales professional to help us meet and exceed our customer acquisition and revenue growth targets. You will be responsible for a sales territory in North America, working with a high degree of autonomy and reporting to the Head of Global Sales and Business Development.

Senior HR Business Partner

Company: Critical Mass

Location: Chicago, IL

Posted Aug 01, 2023

The text is a job description for a Senior HR Business Partner position at Critical Mass. The role involves driving positive change, implementing innovative HR strategies, and fostering a thriving workplace culture. The ideal candidate should have minimum 3 years of experience in HRBP or HR manager roles, strong leadership skills, and the ability to handle conflict and challenging situations. The company offers competitive benefits packages, flexible work arrangements, and opportunities for continuous learning and growth.

Talent Acquisition Coordinator

Company: Critical Mass

Location: Portland, OR

Posted Jun 15, 2023

At Critical Mass, Talent Acquisition Coordinators are expert processors who love to collaborate with various departments to welcome new employees. They are customer service driven with a meticulous eye for detail. The role involves posting jobs, creating offers, scheduling interviews, conducting reference checks, and managing administration for project employees and vendors. Critical Mass offers global maternity and parental leave, competitive benefits, vacation, and remote work options. The Talent Team is focused on providing the best training, onboarding, and employee experience. The company expects team members to work from an office a minimum of 3 days a week to strengthen learning, collaboration, and engagement.

Future Creative Openings

Company: Critical Mass

Location: Other US Location

Posted Jul 28, 2023

Critical Mass is a digital experience design agency with a focus on making complex things simple for clients and their customers. They offer various services and have a strong commitment to transparency, honesty, and passion. The company has grown from a small team in Calgary to 1100 employees across 11 global offices. They prioritize employee training, onboarding, and engagement, and are an equal opportunity employer.

Senior Business Analyst

Company: Critical Mass

Location: Chicago, IL

Posted Jul 01, 2023

The job description is for a Senior Business Analyst with 5-10 years of experience in software or interactive web development initiatives. The role involves gathering and documenting product requirements, leading workshops, and communicating effectively with stakeholders. The candidate should have strong analytical and organizational skills, and be able to produce technology project artifacts and manage requirements for multiple processes and methodologies.

Director, Human Resources / HRBP

Company: Critical Mass

Location: Los Angeles, CA

Posted Jun 22, 2023

None Found

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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