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Series B Startup Jobs — 2737 Open Roles | BuildList

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Jobs/Series B

Series B Jobs

Series B startups hiring — momentum, scale, and serious problems to solve.

2,737 open roles · Updated 8/11/2026

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Energy & Climate👥 Business & People Ops · Mid-Level

Executive Assistant

Torrance, CA

Energy & Climate📋 Product, Programs, & Systems · Mid-Level

Executive Technical Analyst

Torrance, CA

Energy & Climate⚙️ Mechanical & Physical Systems · Mid-Level

Turbomachinery Mechanical Designer

Torrance, CA

Energy & Climate⚙️ Mechanical & Physical Systems · Mid-Level

Structures Engineer, Turbomachinery Static Hardware

Torrance, CA

Energy & Climate⚡ Electrical & Firmware · Senior

Senior Instrumentation and Controls Engineer

Torrance, CA

Energy & Climate📦 Supply Chain & Procurement · Senior

Torrance, CA

Energy & Climate⚡ Electrical & Firmware · Senior

Senior Electrical Engineer - MV/LV Design

Torrance, CA

Energy & Climate⚡ Electrical & Firmware · Staff / Principal

Staff Instrumentation & Controls Engineer – Nuclear

Torrance, CA

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Series B

Energy & Climate✅ Test, Quality, & Reliability · Mid-Level

Quality Assurance Laboratory Technician

Orangeville, UT

Energy & Climate👥 Business & People Ops · Entry-Level

Site Enviromental Health and Safety Coordinator

Orangeville, UT

Energy & Climate🏭 Manufacturing & Production · Mid-Level

Control Panel Builder

Torrance, CA

Energy & Climate🏭 Manufacturing & Production · Mid-Level

Chemical Vapor Deposition Engineer (TRISO)

Orangeville, UT

Energy & Climate🔒 Infrastructure, IT, & Security · Senior

Senior OT Data Engineer

Torrance, CA

Energy & Climate🔒 Infrastructure, IT, & Security · Senior

Lead OT Engineer – Fuel

Hawthorne, CA

Energy & Climate📦 Supply Chain & Procurement · Director

Strategic Sourcing, Director

Torrance, CA

Energy & Climate📦 Supply Chain & Procurement · Director

Supply Chain Systems & Governance, Director

Torrance, CA

Energy & Climate⚙️ Mechanical & Physical Systems · Mid-Level

Rotordynamics Engineer, Turbomachinery

Torrance, CA

Energy & Climate⚙️ Mechanical & Physical Systems · Mid-Level

Turbomachinery Aerodynamics Engineer

Hawthorne, CA

Energy & Climate📦 Supply Chain & Procurement · Manager

Global Supply Manager

Torrance, CA

Energy & Climate⚙️ Mechanical & Physical Systems · Mid-Level

Structures Engineer, Turbomachinery

Torrance, CA

Energy & Climate⚙️ Mechanical & Physical Systems · Senior

Senior Process Engineer

Torrance, CA

Energy & Climate⚙️ Mechanical & Physical Systems · Senior

Senior Thermal-Hydraulics Analysis Engineer

Torrance, CA

Energy & Climate⚙️ Mechanical & Physical Systems · Staff / Principal

Staff CFD Analysis Engineer

Torrance, CA

Energy & Climate⚙️ Mechanical & Physical Systems · Mid-Level

Turbomachinery Secondary Flow Engineer

Torrance, CA

Energy & Climate🏭 Manufacturing & Production · Mid-Level

TRISO Chemical Plant Process Technician

Orangeville, UT

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Frequently asked questions

How many Series B startup jobs are on BuildList?: There are currently 2,737 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?: Series B startups hiring — momentum, scale, and serious problems to solve. 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.