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 Front End Developer

Company: Critical Mass

Location: Other US Location

Posted Sep 20, 2024

The job posting is for a Senior FrontEnd Developer position at Critical Mass, a company that values diversity and inclusion. The job requires experience with FrontEnd technologies, knowledge of recent development practices, and fluency in at least one major mainstream JavaScript library. The company offers competitive benefits packages, vacation time, and internal learning and development programs.

Senior Copywriter

Company: Critical Mass

Location: South Bay

Posted Sep 20, 2024

The job description is for a Senior Copywriter position at Critical Mass, a digital agency. The role involves leading concept development, participating in strategic brainstorming, and creating on-brand user-friendly experiences. The job requires a strong understanding of marketing, digital trends, and technologies, as well as the ability to work on multiple projects simultaneously.

Senior Copywriter

Company: Critical Mass

Location: Other US Location

Posted Sep 20, 2024

The job description is for a Senior Copywriter position at Critical Mass, a company that values diversity and inclusion. The role involves leading concept development, participating in strategic brainstorming, and creating on-brand user-friendly experiences. The company offers training, mentorship, and employee experience to its new hires and employees.

Senior Developer, Front End

Company: Critical Mass

Location: Other US Location

Posted Sep 20, 2024

The job posting is for a Senior Developer position at Critical Mass, an experience design agency. The job requires experience with React, JavaScript, and HTML5, as well as strong communication and troubleshooting skills. The company offers competitive benefits and a diverse work environment.

Finance Business Partner

Company: Salute Mission Critical

Location: Other US Location

Posted Sep 17, 2024

Salute is seeking an experienced Finance Business Partner to join their team, responsible for financial reporting and analysis of individual projects, working closely with Operations and Project Management teams.

Project Coordinator

Company: Salute Mission Critical

Location: Remote

Posted Sep 18, 2024

Salute is a rapidly expanding company looking for a reliable Project Coordinator to join their team. The role involves maintaining financial records, supervising documentation, and supporting client relationships. The company is committed to sustainability, reliability, and exceptional customer service.

Front End Engineer (Email Development)

Company: Critical Mass

Location: Other US Location

Posted Sep 17, 2024

The job posting is for a FrontEnd Developer position at Critical Mass, a company that values diversity and inclusion. The job requires 2+ years of experience with FrontEnd technologies and proficiency in various tools and technologies. The company offers competitive benefits and a flexible work model.

Product Engineer Lead - 3D

Company: Critical Mass

Location: South Bay

Posted Sep 20, 2024

The job posting is for a Lead Product Engineer position at Critical Mass, requiring extensive experience in 3D software and Unreal Engine. The role involves supervising the 3D production pipeline, collaborating with creative teams, and conducting technical audits. The company offers competitive compensation and benefits packages, as well as opportunities for continuous learning and professional growth.

Data Engineer

Company: Critical Mass

Location: Other US Location

Posted Sep 17, 2024

The job posting is looking for a Data Engineer to join the Marketing Science team at Critical Mass. The role involves automating manual processes, defining data extraction solutions, and working closely with the team to understand business context. The company offers competitive benefits, diversity and inclusion initiatives, and a commitment to employee development.

Senior Product Engineer - 3D

Company: Critical Mass

Location: Portland, OR

Posted Sep 19, 2024

The job posting is for a Product Engineer 3D position at Critical Mass, requiring experience in Maya, 3D Solid Works, AutoCAD, or Rhino, and proficiency in Unreal Engine. The company offers competitive compensation and benefits packages, and values diversity and inclusion.

Senior Product Engineer - 3D

Company: Critical Mass

Location: Other US Location

Posted Sep 19, 2024

The job posting is for a Product Engineer 3D position at Critical Mass, requiring experience in Maya, 3D Solid Works, AutoCAD, or Rhino, and proficiency in Unreal Engine. The company offers competitive compensation and benefits packages, and values diversity and inclusion.

Front End Engineer (Email Development)

Company: Critical Mass

Location: South Bay

Posted Sep 17, 2024

The job posting is for a FrontEnd Developer position at Critical Mass, a company that values diversity and inclusion. The job requires 2+ years of experience with FrontEnd technologies and offers competitive compensation and benefits packages.

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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