Full-Time

Laser Scientist

Vector Atomic

Vector Atomic

51-200 employees

High-precision atomic clocks and inertial sensors

Compensation Overview

$163k - $214k/yr

+ Bonus + Equity

No H1B Sponsorship

Pleasanton, CA, USA

In Person

US Citizenship Required

PhD

Category
Hardware Engineering (1)
Required Skills
Python
Metrology
MATLAB

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Requirements
  • At least 3 years of professional experience working with ultra-stable cavities, frequency combs, or atomic clocks.
  • A PhD in Physics, Electrical Engineering, or a related field focused on atomic or optical physics, frequency metrology, or integrated photonics.
  • U.S. citizenship, lawful U.S. permanent residency, or an eligible refugee or asylee status is required for compliance with U.S. export control laws.
  • Hands-on experience measuring relative intensity noise, frequency noise, and phase noise using phase noise analyzers and high-speed radio-frequency equipment.
  • Experience with supercontinuum generation or second-harmonic generation in bulk crystals, nonlinear fibers, or integrated waveguides.
  • Proficiency in polarization-maintaining or specialty fiber fusion splicing, fiber spooling, and high-tolerance free-space assembly.
Responsibilities
  • Develop custom laser systems from fiber-based oscillators to integrated chip-scale architectures.
  • Design and simulate photonic integrated circuit layouts optimized for high-Q micro-resonators and dispersion-engineered nonlinear optics using silicon nitride, thin-film lithium niobate, and Tantala.
  • Architect the migration of frequency combs and low-noise systems from discrete fiber or free-space components to photonic integrated circuit platforms.
  • Build and characterize conventional systems, including fiber spooling, master oscillator power amplifier configurations, and discrete nonlinear conversion stages.
  • Characterize frequency noise, phase noise, and Allan deviation at the benchtop and chip levels.
  • Develop testing protocols for stabilization architectures, including Pound–Drever–Hall locking and f-2f self-referencing.
  • Partner with hardware teams to integrate laser systems into atomic clocks and quantum timing sensors.
Desired Qualifications
  • Proficiency with Lumerical finite-difference time-domain or MODE, or COMSOL, for designing waveguides and resonators.
  • Deep understanding of mode-locked lasers and carrier-envelope offset frequency detection and stabilization.
  • Practical experience with chip-level probing and edge or grating coupling for silicon nitride, thin-film lithium niobate, or Tantala.
  • Strong understanding of proportional-integral-derivative control loops, high-bandwidth feedback, and low-noise frequency or power controllers.
  • Proficiency in Python or MATLAB for automating optical characterization and processing high-bandwidth noise data.
  • Experience with high-efficiency laser-to-chip integration and optical coupling techniques.

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

  • IonQ's October 2025 acquisition gives Vector Atomic broader sales channels and capital immediately.
  • A 2026 Army contract worth $1.7 million extends government validation and near-term engineering demand.
  • The October 2025 acquisition positions Vector Atomic for bundled compute, networking, and sensing deals.

What critics are saying

  • IonQ owns Vector Atomic now; integration failures can bury the brand and engineering roadmap by 2027.
  • Defense revenue concentration leaves Vector Atomic exposed to DoD budget shifts and contract recompete losses.
  • Infleqtion, AOSense, and Exail are commercializing competing quantum timing and navigation systems now.

What makes Vector Atomic unique

  • IonQ completed Vector Atomic acquisition on October 7, 2025, preserving its field-validated PNT stack.
  • Vector Atomic ships rackmount optical clocks, inertial sensors, and synchronization hardware for harsh environments.
  • The company won over $200 million in U.S. government contracts, including X-37B and Army SBIR work.

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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

15%

1 year growth

15%

2 year growth

15%
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