Jobs/Staff & Principal Startup Jobs

Staff & Principal Startup Jobs

Staff and principal roles at startups building the future — set technical direction.

2,397 open roles · Updated Sep 25, 2026

2,397 jobs

Formation Bio Principal Data Scientist, Medical Imaging

New York, NY · Boston, MA

Job type: AI & Autonomy
Seniority: Staff / Principal
Sector: Bio & Health

Saildrone Principal Software Engineer, Perception

Alameda, CA

$300k–$380k / year

Job type: AI & Autonomy
Seniority: Staff / Principal
Sector: Defense

Persona AI Staff Platform Engineer - Developer Infrastructure

Houston, TX

Job type: Infrastructure, IT, & Security
Seniority: Staff / Principal
Sector: Robotics

Watney Robotics Software Engineer - Perception

San Francisco, CA

Job type: Finance, Legal, & Compliance
Seniority: Staff / Principal
Sector: Robotics

Phaidra Staff Product Manager

Remote

$181k–$249k / year

Job type: Product, Programs, & Systems
Seniority: Staff / Principal
Sector: Energy & Climate

Umbra Senior/Staff Mechanical Engineer

Santa Barbara, CA

$180k–$220k / year

Job type: Mechanical & Physical Systems
Seniority: Staff / Principal
Sector: Aerospace

RogueBeam Principal RFIC Engineer

Seattle, WA

Job type: Electrical & Firmware
Seniority: Staff / Principal
Sector: Defense

Texture Energy Product Design Lead

New York, NY

$191k–$224k / year

Job type: Marketing & Design
Seniority: Staff / Principal
Sector: Energy & Climate

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Heaviside Industries Principal DSP Engineer

Los Angeles, CA

$185k–$230k / year

Job type: Electrical & Firmware
Seniority: Staff / Principal
Sector: Defense

Ambience Healthcare Staff ML Engineer, Frontier AI

San Francisco, CA

$244k–$305k / year

Job type: AI & Autonomy
Seniority: Staff / Principal
Sector: Bio & Health

Ephemeris Net Staff Electrical Engineer

El Segundo, CA · Oakland, CA

$180k–$230k / year

Job type: Electrical & Firmware
Seniority: Staff / Principal
Sector: Aerospace

Pika Senior/Staff Software Engineer, Backend

Job type: Software & Data
Seniority: Staff / Principal
Sector: AI App

Traba Staff Product Manager (AI Agents)

New York, NY · San Francisco, CA

$210k–$250k / year

Job type: Product, Programs, & Systems
Seniority: Staff / Principal
Sector: Manufacturing

RED 6 Principal Systems Engineer

Denver, CO

$160k–$200k / year

Job type: Product, Programs, & Systems
Seniority: Staff / Principal
Sector: Defense

Merge Labs ML Research Scientist - De Novo Design

San Francisco, CA

$200k–$270k / year

Job type: AI & Autonomy
Seniority: Staff / Principal
Sector: Bio & Health

GrayMatter Robotics Staff Design Engineer

Los Angeles, CA

$135k–$250k / year

Job type: Mechanical & Physical Systems
Seniority: Staff / Principal
Sector: Robotics

StackBlitz Staff Applied AI Engineer

Remote

Job type: AI & Autonomy
Seniority: Staff / Principal
Sector: AI App

Arc Boats Staff Electrical Systems Engineer

Torrance, CA

$215k / year

Job type: Electrical & Firmware
Seniority: Staff / Principal
Sector: Transportation

Ironstead Member of Technical Staff, Principal Machining

Denver, CO · Los Angeles, CA · Seattle, WA

Job type: Manufacturing & Production
Seniority: Staff / Principal
Sector: Manufacturing

Lunar Energy Staff Firmware Engineer

Remote · United Kingdom

Job type: Electrical & Firmware
Seniority: Staff / Principal
Sector: Energy & Climate

Atom Computing Principal Quantum Engineer

Boulder, CO

$250k–$287k / year

Job type: Electrical & Firmware
Seniority: Staff / Principal
Sector: Compute & Semiconductors

Reflex Robotics Principal AI Research Engineer - RL

New York, NY · San Francisco, CA

Job type: AI & Autonomy
Seniority: Staff / Principal
Sector: Robotics

Nidus Technologies Staff Hardware Engineer, Robotics Systems & Deployments

New York, NY

Job type: Mechanical & Physical Systems
Seniority: Staff / Principal
Sector: Defense

Bedrock Ocean Staff Robotics Engineer

$190k–$235k / year

Job type: AI & Autonomy
Seniority: Staff / Principal
Sector: Energy & Climate

KoBold Metals Staff Client Platform Engineer (CPE) (Remote)

Remote

$150k–$180k / year

Job type: Infrastructure, IT, & Security
Seniority: Staff / Principal
Sector: Energy & Climate

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Frequently asked questions

How many staff and principal roles are on BuildList?: There are currently 2,397 open staff and principal roles on BuildList, refreshed hourly from company career pages.
What kinds of staff and principal roles are listed?: Staff and principal roles at startups building the future — set technical direction. You can filter by sector, company stage, role type, and location.
Are there remote staff and principal roles?: Yes — use the location filter or the remote view to see fully-remote staff and principal openings.
How do I apply for staff and principal roles?: Every listing links straight to the company's own application page — BuildList doesn't sit between you and the employer, so there's no account or middleman.