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.

Primary Care Float Physician - Mass General Brigham Medical Group

Company: Mass General Brigham Community Physicians

Location: Somerville, Massachusetts

Posted Nov 24, 2024

Mass General Brigham is recruiting experienced Primary Care physicians for a flexible Float team role. This role involves short-term panel management coverage for clinicians on leave or patients without established care. Key highlights include a flexible schedule, support from a team and specialists, career growth opportunities, and a competitive salary. Qualifications include a minimum of 3 years of primary care experience, board certification in Internal Medicine, Family Medicine, or Med-Peds, a 20-hour weekly commitment, eligibility to work in Massachusetts or New Hampshire, willingness to travel, strong interpersonal skills, and technological adeptness.

Colorado Physician - Critical Care & Pulmonary Medicine

Company: Critical Care, Pulmonary and Sleep Assocs

Location: Denver, Colorado

Posted Nov 24, 2024

Critical Care, Pulmonary and Sleep Associates (CCPSA) is a well-established, physician-owned multispecialty private practice in Denver metro area, serving multiple CommonSpirit and AdventHealth hospitals for over 40 years. They offer comprehensive critical care, pulmonary, and sleep services, with a team of over 30 Board Certified physicians. CCPSA is renowned for its patient-centered care, teamwork, and collaborative approach. They are currently seeking a board-certified Pulmonary/Critical Care Physician to join their team. CCPSA provides direct patient care, performs various ICU procedures, and manages complex patient populations. They also offer opportunities for career development and engage in clinical and administrative leadership activities. CCPSA serves various hospital ICU locations and outpatient clinics across Colorado's front range.

Primary Care Float Physician - Mass General Brigham Medical Group

Company: Mass General Brigham Community Physicians

Location: Somerville, Massachusetts

Posted Nov 24, 2024

Mass General Brigham is recruiting experienced Primary Care physicians for a flexible Float team role. This role involves short-term panel management coverage for clinicians on leave or patients without established care. Key highlights include a flexible schedule, support from a team and specialists, career growth opportunities, and a competitive salary. Qualifications include a minimum of 3 years of primary care experience, board certification in Internal Medicine, Family Medicine, or Med-Peds, a 20-hour weekly commitment, eligibility to work in Massachusetts or New Hampshire, willingness to travel, strong interpersonal skills, and technological adeptness.

Home Hospital Physician for Hybrid Work Model with Mass General Brigham

Company: Mass General Brigham Community Physicians

Location: Massachusetts

Posted Nov 24, 2024

Mass General Brigham is expanding its Home Hospital program, offering full-time and part-time positions for physicians interested in delivering innovative patient care. The program involves treating acutely ill patients in their homes, collaborating with an interdisciplinary team, and participating in care redesign initiatives. Physicians will provide hospital-level acute care, make home visits, and be on call for patient needs. They will also engage in virtual care, patient evaluations, and documentation. The ideal candidate is a forward-thinking, team-oriented individual with expert communication skills and proficiency in inpatient medicine, virtual care, and multidisciplinary team-based care.

Home Hospital Physician for Hybrid Work Model- Full Time amd Part Time Opportunities

Company: Mass General Brigham Community Physicians

Location: Salem, Massachusetts

Posted Nov 24, 2024

Mass General Brigham is expanding its Home Hospital program and seeks physicians for innovative patient care. This hybrid role involves treating acutely ill patients at home, collaborating with an interdisciplinary team, and participating in care redesign initiatives. Full-time and part-time positions are available, with responsibilities including medical decision-making, patient evaluations, and overnight coverage support. Required qualifications include Internal Medicine BC/BE, proficiency in inpatient medicine, virtual care, and multidisciplinary team-based care. Highly preferred skills include competency in bedside procedures.

Senior Financial Accountant

Company: Salute Mission Critical

Location: Other US Location

Posted Nov 30, 2024

The job posting is for a Senior Financial Accountant position at Salute, a leading provider of data center infrastructure services. The role involves managing financial operations, preparing financial statements, and collaborating with the finance team. The ideal candidate should have experience in accounting, tax, and reporting standards, as well as strong communication and computer skills.

Assistant Chief Medical Information Officer (CMIO), MGB Healthcare at Home

Company: Mass General Brigham Community Physicians

Location: Somerville, Massachusetts

Posted Nov 25, 2024

The MGB Assistant CMIO will lead the implementation and optimization of clinical information systems to support MGB Healthcare at Home (MGB HC@H) and other emerging service lines. The role involves improving patient and care team experience, enhancing safety, and facilitating high-quality care delivery through digital technologies. Initially, the focus is on supporting the growth of Home Hospital and Emergency Care at Home service lines, while also addressing clinical and operational challenges. Long-term responsibilities include becoming a strategic partner with MGB HC@H site leadership, identifying and implementing digital solutions, and promoting the enterprise strategy and mission.

Primary Care - Newburyport, MA

Company: Mass General Brigham Community Physicians

Location: Newburyport, Massachusetts

Posted Nov 24, 2024

Mass General Brigham Community Physicians (MGBCP) is a part of the Mass General Brigham system, offering world-class care through academic medical centers, specialists, community doctors, and hospitals. Their doctors in Newburyport, MA, provide primary care services to patients aged 18 and older, ensuring high clinical quality, productivity, and coordinated care. The practice is collaborative, supportive, and autonomous, with access to innovative tools and robust support.

Home Hospital Physician for Hybrid Work Model- Full Time and Part Time Opportunities

Company: Mass General Brigham Community Physicians

Location: Salem, Massachusetts

Posted Nov 23, 2024

Mass General Brigham, a renowned healthcare system, is expanding its Home Hospital program and seeking innovative physicians. The Home Hospital Physician role involves treating acutely ill patients in their homes, providing hospital-level care, and collaborating with an interdisciplinary team. The position offers full-time and part-time opportunities, with responsibilities including medical decision-making, patient evaluations, documentation, and oversight of the Home Hospital team. Qualifications include Internal Medicine BC/BE, proficiency in inpatient medicine, virtual care, and multidisciplinary team-based care, and willingness to make home visits.

Jr. Account Executive

Company: Salute Mission Critical

Location: Remote

Posted Nov 28, 2024

Salute is seeking a dynamic Jr Account Executive to drive relationships with hyperscale clients and deliver sustainable solutions. The role involves business development, customer relationship management, and sales process. The ideal candidate has a strong understanding of the construction industry and excellent communication skills.

Chief of Pulmonary & Critical Care Medicine (PCCM) at Kent Hospital, Warwick, RI

Company: Mass General Brigham Community Physicians

Location: Warwick, Rhode Island

Posted Nov 24, 2024

Brigham and Women’s Hospital (BWH) is recruiting for a dynamic physician leader for the PCCM program at Kent Hospital, a 359-bed, acute care hospital. The successful candidate will have a strong presence in ambulatory practice, ICU, and consult service time, demonstrating clinical expertise and leadership acumen. Kent Hospital, a teaching affiliate of The New England College of Osteopathic Medicine and The Warren Albert Medical School of Brown University, offers GME training programs. The hospital is an equal opportunity employer, encouraging women and minority candidates to apply.

Property Coordinator

Company: Salute Mission Critical

Location: Atlanta, GA

Posted Nov 29, 2024

Salute is a leading provider of data center infrastructure services, seeking a dynamic Property Coordinator to join their team. The role involves overseeing the day-to-day upkeep and enhancements of a 500,000sf specialty facility, providing administrative support, and managing vendor relationships.

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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