Full-Time

Associate Firmware Engineer

Firmware

Vector Atomic

Vector Atomic

51-200 employees

High-precision atomic clocks and inertial sensors

Compensation Overview

$107.5k - $140.7k/yr

+ Bonus + Equity

No H1B Sponsorship

Pleasanton, CA, USA

In Person

On-site in Pleasanton, California. Travel up to 5% domestically or internationally.

US Citizenship Required

Bachelor's, Master's

Category
Software Engineering (1)
Required Skills
TCP/IP
Python
Git
Perl
C/C++
FPGA

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Requirements
  • A Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or Computer Science from an accredited program.
  • Ability to write production-quality C/C++ for small embedded processors.
  • Experience writing interrupt service routines, peripheral drivers, and multi-threaded firmware using real-time operating systems and/or bare-metal environments.
  • Scripting experience in Python, Perl, or similar languages.
  • Hands-on experience with laboratory test equipment, including oscilloscopes, function generators, and voltmeters.
  • Ability to isolate and resolve bugs using debuggers and simulation tools.
  • Comfort working in a laboratory setting.
  • Must be a U.S. citizen, lawful U.S. permanent resident, or qualify under certain categories of refugee or asylee status to comply with U.S. export control laws.
Responsibilities
  • Write and verify embedded firmware for ST microcontrollers, including commercial off-the-shelf devices and microcontrollers integrated into custom application-specific integrated circuits.
  • Implement control algorithms critical to the operation of high-precision quantum sensing instruments.
  • Develop peripheral drivers for mixed-signal devices using electronic schematics.
  • Partner with hardware engineers on board testing and bring-up activities.
  • Participate in code reviews, GitHub task tickets, and retrospectives.
  • Document and communicate work in a collaborative, cross-disciplinary environment.
Desired Qualifications
  • Experience designing proportional-integral-derivative or other control algorithms.
  • Familiarity with fixed-point arithmetic and digital filter design.
  • Experience with communication protocols such as TCP, UDP, UART, SPI, and I2C.
  • Assembly language programming for embedded targets.
  • Experience with lightweight Ethernet stacks such as lwIP.
  • Background with system-on-chip or field-programmable gate array devices.

Vector Atomic builds high-performance quantum sensing devices, including optical atomic clocks, inertial sensors like gyroscopes and gravimeters, and GPS-free synchronization hardware for defense, aerospace, and national security in harsh environments. These devices use atomic transitions to deliver extremely stable timing and precise motion data; optical clocks provide picosecond-level timing and distribute it via synchronization hardware, while inertial sensors track rotation and gravity for navigation without GPS. The company distinguishes itself through deep physics expertise, strong government contracts, and a path from lab hardware to field-ready products, while staying 100% employee-owned and investor-free; it was acquired by IonQ to merge sensing with computing and networking. Its goal is to speed the deployment of secure, GPS-free navigation and communication by integrating quantum sensing with broader quantum platforms for government and commercial markets.

Company Size

51-200

Company Stage

N/A

Total Funding

$5.3M

Headquarters

Pleasanton, California

Founded

2018

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Simplify Jobs

Simplify's Take

What believers are saying

  • DARPA’s August 6, 2026 It’s About Time program awarded IonQ new clock-scale manufacturing work.
  • Vector Atomic showed its 5-liter optical clock at PTTI 2026, signaling product momentum.
  • IonQ’s October 7, 2025 acquisition expands selling power across quantum computing, networking, and sensing.

What critics are saying

  • DARPA’s mid-2027 manufacturing facility deadline creates schedule-slip risk for Evergreen-05 production.
  • Over $200 million in U.S. government contracts ties Vector Atomic to defense budgets and procurement cycles.
  • IonQ integration after October 2025 can bury Vector Atomic inside a computing-first organization.

What makes Vector Atomic unique

  • Vector Atomic’s 2026 5-liter ROCkN clock still beats GPS by orders of magnitude.
  • Its field-validated clocks, gyros, and synchronization hardware work in space, sea, and contested environments.
  • IonQ kept Vector Atomic’s 29 patents and 75-person sensing team after October 2025.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Health Savings Account/Flexible Spending Account

Paid Vacation

Parental Leave

Growth & Insights and Company News

Headcount

6 month growth

12%

1 year growth

12%

2 year growth

12%
Quantum Computing Report
Sep 17th, 2025
IonQ Completes Oxford Ionics Acquisition, Announces Intent to Acquire Vector Atomic for Quantum Sensing - Quantum Computing Report

IonQ (NYSE: IONQ), a quantum computing and networking company, has announced the completion of its acquisition of Oxford Ionics, a quantum computing company based in the United Kingdom. Concurrently, IonQ announced that it has entered into a definitive agreement to acquire Vector Atomic, a company specializing in advanced quantum sensors. These two strategic moves are intended to strengthen IonQ’s technology portfolio and accelerate its expansion into quantum sensing. The acquisition of Oxford Ionics is aimed at accelerating IonQ’s technology roadmap for more powerful and scalable quantum computers, while also supporting the company’s expansion into the UK, Europe, and other global markets. [...]

eDaily
Sep 17th, 2025
IonQ Acquires Vector Atomic for $1.3B

IonQ's stock continues its upward trend, rising 2.7% to $63.94 in pre-market trading on the 17th. The stock has surged from $43 to $63 over five consecutive trading days. This increase follows the UK authorities' approval of IonQ's acquisition of Oxford Ionics, which boosted the stock by 5.33% to $62.26 the previous day. Additionally, IonQ announced a deal to acquire Vector Atomic in the US. The total value of these transactions is approximately $1.3 billion.

IonQ
Sep 17th, 2025
IonQ Announces Intent to Acquire Vector Atomic, Expanding Into Quantum Sensing and Strengthening Its Quantum Technology Portfolio.

COLLEGE PARK, MD - September 17, 2025 - IonQ (NYSE: IONQ), the leader in the quantum computing and networking industries, today announced it has entered into a definitive agreement to acquire Vector Atomic, a pioneer in advanced quantum sensors for positioning, navigation, and timing (PNT) applications.

Military Embedded Systems
Jul 18th, 2025
Quantum sensor-based navigation systems to be developed for DoD by Honeywell

For the CRUISE effort, Honeywell will collaborate with Vector Atomic to develop quantum sensor-based inertial measurement units (IMUs) designed to provide standalone navigation capabilities without reliance on GNSS.

Yahoo Finance
Nov 13th, 2023
Vector Atomic Brings World'S First Rackmount Optical Clock To Market

Evergreen-30 featured at American Possibilities: A White House Demo DayPLEASANTON, Calif., November 13, 2023--(BUSINESS WIRE)--Vector Atomic has announced the launch of Evergreen-30, the world’s first fully integrated commercial optical clock. EG-30 introduces a new performance class to commercial timing markets, offering 25 femtosecond stability (0.000000000000025 s) at one second, and multiday, sub-nanosecond holdover. The unique combination of stability, low drift, and compact size supports applications including GNSS resilience, data center synchronization, coherent radar, quantum computing, and optical metrology.This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20231113157771/en/Vector Atomic's Evergreen-30 (EG-30) optical clock (Photo: Vector Atomic)Optical atomic clocks have revolutionized precision timekeeping. Laboratory clocks now reach timing inaccuracies below 10-18. Until now, however, optical clocks have not made it to market due to their size, environmental sensitivity, and cost