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.

Business Development Director

Company: Critical Mass

Location: New York City, NY

Posted Apr 29, 2024

The job posting is for a Business Development Director at Critical Mass (CM), a role that requires extensive experience in developing complex business strategies for Fortune 1000 clients. The successful candidate will be responsible for leading New Business RFI and RFP responses, guiding the development of client proposals, and presenting them to the wider pitch team. They will also cultivate relationships with sister agencies and complementary partners to develop new opportunities. The role involves a significant amount of travel for networking functions and industry events. The ideal candidate should have 8+ years of experience in an interactive agency environment, a proven track record of meeting or exceeding new business revenue targets, and excellent communication skills. The salary range for this position is $150,000—$165,000 USD.

Project Coordinator (Onsite)

Company: Salute Mission Critical

Location: Other US Location

Posted Apr 24, 2024

Salute, a leading provider of Data Center Infrastructure Services, is seeking a Project Coordinator with an Engineering background. The role involves Configuration Management, Supply Chain Management, Vendor and Logistics Management, and Procurement. The ideal candidate should have strong communication skills, experience in managing logistics, and the ability to work with cross-functional teams. Key responsibilities include material demand planning, inventory control, and managing communication with vendors. The role requires meticulous attention to detail, flexibility, and the ability to work on multiple projects simultaneously. Prior experience with overseas vendors, BOM development, and PLM tools is preferred. The position offers opportunities for growth and innovation in the data center industry.

Account Director

Company: Critical Mass

Location: Los Angeles, CA

Posted Apr 29, 2024

The Account Director role at Critical Mass involves managing client relationships, providing strategic direction, leading internal and client teams, managing finances, and developing organic growth. The ideal candidate has 5-10 years of experience in digital marketing, user experience, or product design, with a solid understanding of user-centric digital product design. They should have experience managing complex teams and clients, formulating long-term strategic plans, and possess advanced communication and negotiation skills. Critical Mass offers competitive benefits, including global maternity and parental leave, extensive learning programs, and a focus on diversity and inclusion. The company is committed to fostering a collaborative and engaging work environment, with a salary range of $120,000—$140,000 USD.

Critical Mass - Associate Developer

Company: Critical Mass

Location: Calgary, AB, Canada

Posted Apr 30, 2024

Critical Mass Associate Developer Calgary AB Canada Apr 30

Freelance Senior User Experience

Company: Critical Mass

Location: Other US Location

Posted Apr 13, 2024

The job posting is for a Senior User Experience Designer position. The role involves determining the user experience of clients' digital products, designing holistic systems, flows, and interfaces, and collaborating with engineering teams. The ideal candidate should have 3-5 years of related industry experience, strong communication and interpersonal skills, and proficiency in tools like Figma and Adobe Creative Suite. The company, Critical Mass, is committed to diversity, equity, and inclusion, and aims for at least 50% representation from underrepresented communities.

Team Lead

Company: Salute Mission Critical

Location: Other US Location

Posted Mar 20, 2024

Salute, a leading provider of Data Center Infrastructure Services, is seeking a dynamic and experienced Data Center Team Lead. The role involves managing a team, performing structured cabling and server rack deployments, and ensuring outstanding customer service. Responsibilities include developing shift schedules, managing teams, understanding project controls, assisting in budget management, and establishing strong client relationships. The ideal candidate should have strong Microsoft Office skills, excellent communication skills, and a complete working knowledge of creating, closing, and tracking work requests. Hands-on experience with mission-critical operations and understanding of data center environment operations is preferred.

Group Creative Director

Company: Critical Mass

Location: New York City, NY

Posted Apr 13, 2024

The text describes a Group Creative Director role at Critical Mass, an agency focused on creative excellence, account growth, and talent development. The ideal candidate is a master storyteller with exceptional writing skills, a love for digital platforms, and the ability to lead and mentor a team. They should have 6+ years of agency experience, a drive for quick thinking, and the ability to manage multiple projects. The role involves driving creative discipline, pushing ambition and innovation, and partnering with other disciplines. The salary range is $175,000—$230,000 USD. Critical Mass is committed to diversity, equity, and inclusion, and expects employees to work from the office a minimum of 4 days a week.

SVP, Strategy

Company: Critical Mass

Location: New York City, NY

Posted Apr 29, 2024

Critical Mass is seeking an experienced SVP of Strategy with 15+ years in the agency world, 5+ years in interagency environments, and 3+ years in automotive. The role involves leading strategy work for an iconic brand, working in an interagency environment, and partnering with the client's CMO. The ideal candidate should have expertise in brand, media, performance, CX, social, integrated campaigns, and digital technology strategies. They should also have strong leadership, facilitation, presentation, and storytelling skills, and be able to grow accounts organically. Critical Mass offers competitive compensation and benefits, with a salary range of $220,000—$249,000 USD. The company is committed to diversity, equity, and inclusion, with a target of achieving at least 50% representation from underrepresented communities.

Change Management Specialist

Company: Salute Mission Critical

Location: Other US Location

Posted Apr 26, 2024

Salute, a leading provider of Data Center Infrastructure Services, is seeking a Change Management Specialist. The role involves leading organizational change initiatives, developing and implementing change processes, and ensuring smooth implementation across all levels. The specialist will set standards for error elimination procedures, contribute to corporate technical documentation, and keep abreast of trends in technical communication. They will also research and learn new technologies, set communication standards for change management, and develop reports on asset changes. The ideal candidate should have experience in change management, excellent communication skills, and the ability to work collaboratively. Salute is an equal opportunity employer committed to diversity and inclusivity.

Senior Project Manager

Company: Critical Mass

Location: Other US Location

Posted Mar 21, 2024

Critical Mass is seeking a Senior Project Manager with extensive digital project experience to collaborate with various teams and stakeholders. The role involves managing in-store demo unit experiences, maintaining branding and human-centered design, and delivering projects across multiple channels. The company offers competitive benefits, including global parental leave, flexible work hours, and a commitment to diversity and inclusion. The ideal candidate should be a self-starter, detail-oriented, and comfortable with rapid change.

Senior Backend Developer

Company: Critical Mass

Location: Chicago, IL

Posted Apr 29, 2024

Critical Mass is seeking an experienced AEM developer with Java expertise to join their team. The role involves managing AEM components, developing Java services, and contributing to the evolution of AEM development standards. The company values testing, documentation, and continuous learning, and offers opportunities for mentorship and team collaboration. The ideal candidate should have experience with CMS platforms, Java development, and enterprise-grade projects. They should also possess strong problem-solving skills, organizational abilities, and excellent communication skills.

Group Creative Director

Company: Critical Mass

Location: Other US Location

Posted Apr 13, 2024

The text describes a Group Creative Director role that involves leading large teams to creative excellence, account growth, project delivery, and talent development. The individual is expected to be a master storyteller, driving creative discipline, and pushing ambition and innovation in the work. They should have exceptional writing skills, a love for digital platforms, and the ability to stay on top of cultural trends and technology developments. The role also involves partnering with other disciplines, communicating creative ideas, and mentoring team members. The Talent Team at Critical Mass emphasizes continuous learning, collaboration, and employee engagement, requiring a minimum of 2 days a week in the office. Critical Mass is committed to diversity, equity, and inclusion, and does not tolerate discrimination.

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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