Jobs at Critical Mass
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.
Internal Medicine Physician, Dover, NH
Company: Mass General Brigham
Location: Dover, New Hampshire
Posted Jun 02, 2025
Community Otolaryngologist (ENT) – Wentworth-Douglass Hospital
Company: Mass General Brigham
Location: Somersworth, New Hampshire
Posted Jun 08, 2025
Medical Director, Primary Care, Watertown, MA
Company: Mass General Brigham
Location: Watertown, Massachusetts
Posted Jun 08, 2025
Neurologist Multiple Sclerosis Specialist, Dover, NH
Company: Mass General Brigham
Location: Dover, New Hampshire
Posted Jun 08, 2025
Nocturnist, Salem, MA
Company: Mass General Brigham
Location: Salem, Massachusetts
Posted Jun 02, 2025
Geriatrician, Northampton, MA
Company: Mass General Brigham
Location: Northampton, Massachusetts
Posted Jun 01, 2025
Security Officer Hiring Event
Company: Securitas Critical Infrastructure Services
Location: Phoenix, AZ
Posted May 29, 2025
\*$1000 for Candidates with an active AZ Guard Card and DoD Secret Clearance\**. 6 months security, military, or law enforcement experience (Required).
Neurohospitalist, Dover, NH
Company: Mass General Brigham
Location: Dover, New Hampshire
Posted Jun 01, 2025
Accountant
Company: Mass Precision, Inc.
Location: San Jose, CA
Posted Jun 05, 2025
Prepare for and interface with outside auditors, CPA firms, and state/county auditors (every 3–4 years). Files required tax forms with federal, state and local…
Per Diem Inpatient Psychiatrist, Newton, MA
Company: Mass General Brigham
Location: Newton, Massachusetts
Posted Jun 02, 2025
Primary Care Physician, Massachusetts and Southern New Hampshire
Company: Mass General Brigham
Location: Massachusetts and Southern New Hampshire
Posted Jun 22, 2025
Family Medicine Physician, Belchertown, MA
Company: Mass General Brigham
Location: Belchertown, Massachusetts
Posted Jun 02, 2025