How many Series B startup jobs are on BuildList?

There are currently 3,243 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 — 3242 Open Roles — Page 108

Harmattan AI Superviseur Packaging (Packaging Supervisor)

France

Job type: Manufacturing & Production
Seniority: Manager
Sector: Defense

Apply

Higgsfield Legal Business Partner

Kazakhstan

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

Apply

Allen Control Systems Inventory Control Clerk

Austin, TX

Job type: Manufacturing & Production
Seniority: Entry-Level
Sector: Defense

Apply

Aalo Atomics Cybersecurity Engineer – Security & Compliance

Austin, TX

Job type: Manufacturing & Production
Seniority: Mid-Level
Sector: Energy & Climate

Apply

Serval Deployment Leadership

San Francisco, CA

$250k–$400k / year

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

Apply

Mach Industries Field Drone Technician

Huntington Beach, CA

$62k–$83k / year

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

Apply

MatX ASIC/SOC Silicon Physical Design Engineer

Mountain View, CA

$250k–$600k / year

Job type: Electrical & Firmware
Seniority: Senior
Sector: Compute & Semiconductors

Apply

Apptronik Staff Electrical Engineer - Compute

Austin, TX

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

Apply

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Thea Energy Vice President - Supply Chain

Kearny, NJ

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

Apply

X-Bow Systems Solid Rocket Motor (SRM) Ballistics Engineer (4+ yrs Industry Experience)

Remote · United States

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

Apply

Fuse Energy AI Inference Engineer

Remote · United Kingdom · United States

Job type: AI & Autonomy
Seniority: Senior
Sector: Energy & Climate

Apply

Valar Atomics Thermal Engineer, Turbomachinery

Torrance, CA

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

Apply

Firestorm Senior Staff Airframe Design Engineer

San Diego, CA

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

Apply

Somos Técnico Especialista en Operaciones de Hardware de Datacenter

Colombia

Job type: Infrastructure, IT, & Security
Seniority: Entry-Level
Sector: Construction & Housing

Apply

Northwood RF Systems Architect

Torrance, CA

$148k–$225k / year

Job type: Electrical & Firmware
Seniority: Senior
Sector: Aerospace

Apply

LangChain Solutions Engineer (Chicago)

Remote · Chicago, IL

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

Apply

Cowboy Space Corporation Senior Platform Firmware Engineer

San Carlos, CA

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

Apply

Harmattan AI Mechatronics Engineering Intern

France

Job type: Mechanical & Physical Systems
Seniority: Intern
Sector: Defense

Apply

Higgsfield Application Security Engineer

Kazakhstan

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

Apply

Allen Control Systems Advanced Drone Operator

Austin, TX

Job type: Manufacturing & Production
Seniority: Mid-Level
Sector: Defense

Apply

Aalo Atomics VP of Licensing and Regulatory Affairs

Austin, TX

$250k / year

Job type: Finance, Legal, & Compliance
Seniority: Executive
Sector: Energy & Climate

Apply

Serval Sourcer

San Francisco, CA

$125k–$200k / year

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

Apply

Mach Industries Recruiter, Early Careers

Huntington Beach, CA

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

Apply

Apptronik Firmware Engineer - Actuation

Austin, TX

Job type: Electrical & Firmware
Seniority: Mid-Level
Sector: Robotics

Apply

Thea Energy Plasma-Materials Scientist

Kearny, NJ

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

Apply

Series B Jobs

Weekly jobs, picked for you.

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