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 — 3243 Open Roles — Page 84

Vapi Member of Technical Staff, Forward Deployed

San Francisco, CA

$200k–$280k / year

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

Apply

Aalo Atomics Senior Test Engineer

Austin, TX

Job type: Test, Quality, & Reliability
Seniority: Senior
Sector: Energy & Climate

Apply

Revel Compiler Engineer

Los Angeles, CA · San Francisco, CA

Job type: Software & Data
Seniority: Senior
Sector: Manufacturing

Apply

Mach Industries December 2026 New Graduate Engineer, Manufacturing

Huntington Beach, CA

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

Apply

Serval Deployment Success Engineer

San Francisco, CA

$150k–$250k / year

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

Apply

Cartesia Researcher, Models (UK)

United Kingdom

Job type: AI & Autonomy
Seniority: Mid-Level
Sector: AI Research

Apply

OpenRouter Software Engineer, Platform

Remote

$215k–$285k / year

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

Apply

Apptronik Senior Reinforcement Learning Engineer

Sunnyvale, CA

$230k–$260k / year

Job type: AI & Autonomy
Seniority: Senior
Sector: Robotics

Apply

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MatX Silicon Validation Engineer

Mountain View, CA

$175k–$400k / year

Job type: Test, Quality, & Reliability
Seniority: Mid-Level
Sector: Compute & Semiconductors

Apply

AMCA Full Cycle Technical Recruiter

El Segundo, CA

$100k–$150k / year

Job type: Business & People Ops
Seniority: Mid-Level
Sector: Manufacturing

Apply

Nominal Enterprise Account Executive

Los Angeles, CA

Job type: Business & People Ops
Seniority: Senior
Sector: Manufacturing

Apply

Thea Energy Electronics Hardware Design Engineer

Kearny, NJ

Job type: Software & Data
Seniority: Senior
Sector: Energy & Climate

Apply

Electra.aero Senior Trade Compliance Administrator

Manassas, VA

$125k–$155k / year

Job type: Finance, Legal, & Compliance
Seniority: Senior
Sector: Aerospace

Apply

X-Bow Systems Mid-Level Frontend JavaScript Software Engineer (Hybrid)

Remote · Austin, TX

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

Apply

Sesame Electrical Engineer

San Francisco, CA · Bellevue, WA

$175k–$280k / year

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

Apply

Listen Labs Account Executive, Strategic Accounts

New York, NY

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

Apply

Lyten Senior Sales Manager, UAV Batteries

Remote

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

Apply

Goodfire Chief of Staff

San Francisco, CA

$300k–$500k / year

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

Apply

Atomic Machines Manufacturing Assembler (2:15pm - 10:45pm)

Emeryville, CA

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

Apply

Bedrock Robotics Software Engineer, Simulation

New York, NY · San Francisco, CA

Job type: Software & Data
Seniority: Mid-Level
Sector: Construction & Housing

Apply

Fractile Senior Processor Architect

United Kingdom

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

Apply

Kela Senior System Engineer

Israel

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

Apply

Slip Robotics Staff Mechanical Engineer

Norcross, GA

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

Apply

Aalyria Mission Engineer, Cleared

Remote

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

Apply

Mind Robotics Robotics Software Engineer

Palo Alto, CA

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

Apply

Series B Jobs

Weekly jobs, picked for you.

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