Senior Software Engineer, PsiQuantum
$168-220k
+ Equity
Quantum computer builder
Job no longer available
Quantum computer builder
501-1000 employees
Job no longer available
$168-220k
+ Equity
501-1000 employees
Company mission
To build and deploy useful, fault tolerant quantum computers.
Role
Who you are
- Bachelor’s degree in Electrical Engineering, Physics, Computer Science, or a related field, with a minimum of 5 years of relevant experience
- Strong proficiency in Python, Git, Bash, JavaScript, and SQL, with a proven track record of delivering high-quality code
- Extensive experience in both frontend and backend development, with a keen understanding of their interplay in hardware-related projects
- Proficiency in AWS and cloud computing services, with hands-on experience in deploying and managing scalable solutions
- Expertise in database management systems such as MySQL, PostgreSQL, along with familiarity with ORM frameworks
- Demonstrated ability to design, develop, and maintain APIs for seamless integration with other applications
- Previous experience in developing software solutions for hardware applications is a significant plus
Desirable
- PhD in Electrical Engineering, Physics, Computer Science, or a related field
- Experience in hardware engineering coupled with a strong background in developing software solutions for hardware design and data management
- Proven track record as a Full Stack Developer or in a similar role, showcasing versatility across frontend and backend technologies
- Familiarity with frontend frameworks such as React, Vue, and/or Svelte, enriching your skill set and potential contributions to our projects
What the job involves
- PsiQuantum's Photonic Circuits team is at the forefront of pioneering advancements in quantum computing technology
- This multidisciplinary team, consisting of physicists and engineers, plays a crucial role in the company's core mission by designing and validating the hardware that underpins our quantum computing machines
- We are seeking an experienced Senior Software Engineer who is passionate about enabling software infrastructure for hardware innovations
- The ideal candidate will have the opportunity to significantly impact our processes, by creating software solutions tailored to our complex hardware challenges and data pipeline requirements
- Design, develop, and maintain software infrastructure and solutions to support hardware design, validation, and data management
- Support and enhance existing backend and frontend tools
- Test and debug software to ensure functionality and reliability
- Collaborate with cross-functional teams to define, design, and deploy new SW features
- Write clean, efficient, and well-documented code
Our take
Quantum computing will change the world more than any other imminent technological development, and PsiQuantum sits at the forefront of the charge to build the first quantum computer that will actually work.
The company is unique for the scale of their ambitions. Rather than focusing on what they term “intermediate milestones” like building smaller proof of concept systems, PsiQuantum builds the first large-scale, error-corrected computer, using photonics to deliver over 1,000,000 qubits (current quantum machines have yet to cross the 1,000 qubit mark).
There are plenty of companies building quantum computers, including the likes of IBM and Google, but these prototypical machines lack the size to correct errors, making them exponentially less useful than what PsiQuantum aims for. While other companies operate in the same sphere, PsiQuantum is unequivocally a leader in its field, founded by world-class academics and recently securing $1B in funding, making it the largest funding round for a quantum computing startup.
Steph
Company Specialist at Welcome to the Jungle
Insights
16% employee growth in 12 months
Company
Funding (last 2 of 7 rounds)
Jun 2025
$1bn
GROWTH EQUITY VC
Jun 2024
$125m
CONVERTIBLE
Total funding: $2.7bn
Company benefits
- Financial & Retirement: 401(k) with company match, equity grants, and access to financial wellness tools and planning resources.
- Health: Competitive health coverage for you and your dependents that go beyond your standard medical, dental & vision.
- Wellness: $200 quarterly health reimbursement, 12 therapy + 6 coaching sessions with Modern Health for you and depndents, and annual membership to Care.com.
- Time Off: Discretionary Time Off (DTO) for full-time employees in addition to federal holidays and an end-of-year company shut-down.
- Family Leave: 12 weeks of paid parental leave with the support of a dedicated leave consultant.
- Flexible WOrk: Work in office, hybrid, or remote depending on your team and location.
Company HQ
Palo Alto, CA
Leadership
Jeremy O'Brien
(Co-Founder & CEO)Prior to founding PsiQuantum, researched and taught at universities across the world, including Bristol, Stanford, Osaka, Sydney and Queensland.
Mark Thompson
(Co-Founder & Chief Technologist)Previously worked as an R&D Engineer at Toshiba and was a research fellow at the University of Cambridge. Is currently a Professor of Quantum Photonics at Bristol University as well as Chief Technologist at PsiQuantum.
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