How many Series B startup jobs are on BuildList?

There are currently 3,236 open roles at Series B companies on BuildList, refreshed hourly from company career pages.

What is it like to work at a Series B startup?

Explore open roles at Series B companies. Filter by sector or role type to focus your search.

Which industries are hiring at Series B companies?

Roles at Series B companies span AI, defense, aerospace, robotics, energy, and more.

How do I apply to Series B startup jobs?

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.

Series B Startup Jobs — 3236 Open Roles — Page 85

Aalyria Mission Engineer, Cleared

Remote

Job type: Software & Data
Seniority: Mid-Level
Sector: Aerospace

Apply

Prime Intellect Applied AI: Product Strategy & Revenue Lead

San Francisco, CA

Job type: Software & Data
Seniority: Mid-Level
Sector: AI Research

Apply

Performance Drone Works Senior Embedded Software Engineer

Huntsville, AL

Job type: Software & Data
Seniority: Entry-Level
Sector: Defense

Apply

Sakana AI Corporate

Japan

Job type: Business & People Ops
Seniority: Senior
Sector: AI Research

Apply

LeoLabs Skillbridge Opportunity: Jr-Mid Level Recruiter

Remote

Job type: Business & People Ops
Seniority: Entry-Level
Sector: Aerospace

Apply

Mytra Product Operations Manager

Remote · Brisbane, CA

Job type: Product, Programs, & Systems
Seniority: Mid-Level
Sector: Robotics

Apply

Physical Intelligence Robot Prototype Technician

San Francisco, CA

Job type: Mechanical & Physical Systems
Seniority: Entry-Level
Sector: Robotics

Apply

Vannevar Labs Backend Engineer, Collection Platform

Remote

Job type: Software & Data
Seniority: Mid-Level
Sector: Defense

Apply

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Umbra Senior Flight Software Engineer (Rust)

Santa Barbara, CA · Arlington, VA · Reston, VA

Job type: Software & Data
Seniority: Mid-Level
Sector: Aerospace

Apply

Traba Head of Operations

New York, NY

Job type: Software & Data
Seniority: Entry-Level
Sector: Manufacturing

Apply

Twenty Staff Data Engineer - TS/SCI Cleared

Arlington, VA

$192k–$455k / year

Job type: Software & Data
Seniority: Staff / Principal
Sector: Defense

Apply

Fuse Energy Quantitative Researcher

United Kingdom

Job type: Software & Data
Seniority: Mid-Level
Sector: Energy & Climate

Apply

Arcana Senior Security Engineer

India

Job type: Finance, Legal, & Compliance
Seniority: Entry-Level
Sector: Fintech

Apply

Wispr Flow Account Executive

San Francisco, CA · New York, NY

$250k–$350k / year

Job type: Software & Data
Seniority: Mid-Level
Sector: Bio & Health

Apply

Valar Atomics Fabrication/Welding Lead

Torrance, CA

$100k–$140k / year

Job type: Manufacturing & Production
Seniority: Manager
Sector: Energy & Climate

Apply

Venus Aerospace Sr. Structures Engineer

Houston, TX

Job type: Software & Data
Seniority: Mid-Level
Sector: Aerospace

Apply

Somos Modelador BIM Civíl

Colombia

Job type: Mechanical & Physical Systems
Seniority: Mid-Level
Sector: Construction & Housing

Apply

Firestorm Full Stack Engineer - Crucible

San Diego, CA

Job type: Software & Data
Seniority: Entry-Level
Sector: Defense

Apply

Northwood Responsible Engineer

Torrance, CA

$100k–$170k / year

Job type: Product, Programs, & Systems
Seniority: Senior
Sector: Aerospace

Apply

LangChain Enterprise Account Executive (Florida)

Remote · Tampa, FL

$350k / year

Job type: Business Dev & Customer Ops
Seniority: Senior
Sector: AI App

Apply

Cowboy Space Corporation Launch Vehicle Engineer

Kent, WA · Washington, D.C.

Job type: Software & Data
Seniority: Mid-Level
Sector: Aerospace

Apply

Harmattan AI Validation Engineer

Morocco

Job type: Test, Quality, & Reliability
Seniority: Senior
Sector: Defense

Apply

Senra Systems Apprentice Quality Inspector

Cypress, CA · Redondo Beach, CA

Job type: Test, Quality, & Reliability
Seniority: Entry-Level
Sector: Manufacturing

Apply

Braintrust Software Engineer, Systems

San Francisco, CA · New York, NY · Seattle, WA

Job type: Finance, Legal, & Compliance
Seniority: Senior
Sector: AI Research

Apply

Sift Software Engineer, Frontend (Agentic AI)

Marina Del Rey, CA

$160k–$200k / year

Job type: Software & Data
Seniority: Mid-Level
Sector: Aerospace

Apply

Series B Jobs

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