Full-Time

Senior Rust Software Engineer

IonQ

IonQ

1,001-5,000 employees

Trapped-ion quantum computing hardware and services

Compensation Overview

$142.1k - $186.1k/yr

+ Bonus + Equity

No H1B Sponsorship

Pleasanton, CA, USA

In Person

Onsite at Pleasanton, CA office; up to 5% travel domestically or internationally.

US Citizenship Required

Bachelor's, Master's

Category
Software Engineering
Required Skills
Rust

Get referred to IonQ

See people who can refer or advise you

Requirements
  • Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field
  • 6+ years of professional software engineering experience (with a proven track record in embedded or hardware-adjacent environments)
  • To comply with the US export control laws, Vector Atomic employees must be U.S. citizens (born or naturalized), lawful U.S. permanent residents (i.e. green card holders), and certain categories of refugees, and asylees
  • Must be fully comfortable working hands-on in a laboratory environment alongside physical hardware and complex test setups
  • Exceptional communication and collaboration skills, with the ability to bridge technical gaps between hardware engineers, software teams, and physicists
Responsibilities
  • Technical Leadership & Architecture: Lead the design and development of reliable, high-performance, production-quality software architectures in Rust.
  • System Control & Drivers: Architect and verify system controllers on ARM SoCs, designing robust user-space drivers for complex peripherals (including mixed-signal devices) and low-latency data acquisition pipelines.
  • Advanced Algorithm Implementation: Implement and optimize critical control loops and precision algorithms essential to the stability and operation of quantum sensing instruments.
  • Hardware Integration & Bring-up: Partner closely with hardware teams to lead board testing, hardware bring-up, and the implementation of fault-tolerant error-handling systems.
  • Quantum Software Infrastructure: Oversee the development and scaling of core software libraries used for the control and automation of next-generation quantum systems.
  • Mentorship & Process Improvement: Champion continuous improvement within the development process—leading technical code reviews, project retrospectives, and mentoring junior engineers
Desired Qualifications
  • Extensive background coding in C/C++ or utilizing Python and its scientific libraries for data analysis and modeling
  • Deep expertise in designing, modeling, and coding advanced control algorithms (such as PID loops) and fixed-point digital filters
  • Advanced experience interfacing with external hardware devices through protocols like TCP/UDP, UART, SPI, and I2C
  • Comprehensive background working with SoC/FPGA architectures and developing specialized Linux device drivers
  • Highly proficient in using standard test and measurement equipment—including oscilloscopes, function generators, and voltmeters—to benchmark, validate, and debug software performance

IonQ sells quantum computing through cloud access and on-site systems that use trapped-ion qubits. Its processors, such as Forte and Tempo, are accessed by customers via cloud platforms or deployed on customer sites, and the company is expanding into quantum networking, quantum key distribution, and sensing through acquisitions and a SkyWater Technology deal. It differentiates itself with trapped-ion technology and by building a broader quantum ecosystem through strategic acquisitions and partnerships to connect devices and services beyond hardware alone. Its goal is to scale commercial quantum computing, grow revenue, and strengthen its cash position to support ongoing expansion and ecosystem development.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

College Park, Maryland

Founded

2015

Get referred to IonQ

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • IonQ raised Q2 2026 revenue 287% to $80.1 million and lifted guidance.
  • DARPA awarded IonQ up to $58 million on August 6, 2026.
  • IonQ ended Q2 2026 with $485 million in remaining performance obligations and $3.0 billion cash.

What critics are saying

  • Scott+Scott investigated IonQ in February 2026 after Wolfpack alleged misleading Pentagon-contract disclosures.
  • IonQ’s $1.9 billion Q2 2026 GAAP loss exposed warrant-driven accounting volatility.
  • If 256-qubit deployment slips beyond 2026, customers defer orders and backlog converts slowly.

What makes IonQ unique

  • IonQ’s trapped-ion architecture delivered 99.99% two-qubit gate fidelity in 2026.
  • IonQ closed SkyWater on July 31, 2026, becoming vertically integrated in chips.
  • IonQ combines computing, networking, sensing, and security under one full-stack platform.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Biweekly catered lunches

Parental leave

Health, vision, & dental insurance

Flexible time off

401(k) with 5% match

University facilities

Commuter benefits

Growth & Insights and Company News

Headcount

6 month growth

-5%

1 year growth

-8%

2 year growth

-10%
Yahoo Finance
Aug 22nd, 2026
IonQ quantum computing stock surges with 287% revenue growth to $80.1M

IonQ, a quantum computing company, is developing technology toward practical applications despite current accuracy limitations. The company's systems achieve 99.99% two-qubit gate fidelity, the industry's best, though still below classical computer standards. IonQ is working on a fault-tolerant 10,000-qubit quantum computer, considered the minimum for mainstream viability. Its 256-qubit system is currently undergoing testing. In Q2, IonQ's revenue surged 287% year over year to $80.1 million. Acquisitions contributed to this growth, but management projects over 100% organic growth for the year, measuring only gains from existing business units. The company is collaborating with customers and partners to fund research and develop commercially viable products. IonQ stock currently trades below its all-time highs.

Yahoo Finance
Aug 11th, 2026
Pentagon awards IonQ $58M contract to produce shoebox-sized quantum clocks

IonQ has secured a $28 million contract modification from the Defense Advanced Research Projects Agency (DARPA) to develop optical atomic clocks, with an option for an additional $30 million. The Maryland-based quantum technology company will produce 25 Evergreen-05 optical atomic clocks initially, with the potential for 100 more units if the option is exercised. IonQ is investing $15 million in manufacturing infrastructure to support production. The clocks will be used for radar, secure communications, and geolocation where GPS access is compromised. The Evergreen-05 is a shoebox-sized device that accumulates less than one second of timing error over 30 million years. It delivers timing stability of 50 femtoseconds at one second in approximately 1/75th the volume of an active hydrogen maser. The technology is designed for terrestrial, sea, and airborne military platforms.

Yahoo Finance
Aug 8th, 2026
IonQ Q2 revenue soars 287% to $80.1M, raises guidance despite $1.9B loss

IonQ reported second-quarter 2026 revenue of $80.1 million, up 287% year over year, exceeding its own expectations by 20%. The quantum computing company raised its standalone full-year revenue outlook to $280 million–$290 million whilst maintaining expectations for roughly 100% organic growth. The company recently completed a $1.8 billion acquisition of SkyWater Technology, adding US-based semiconductor design, fabrication and packaging capabilities. IonQ is targeting commissioning of 256-qubit systems in 2027 and developing a path toward 10,000-qubit chips. The company reported a $1.9 billion GAAP net loss, largely due to a $1.6 billion non-cash warrant valuation impact. Adjusted EBITDA was negative $120.3 million.

Yahoo Finance
Aug 4th, 2026
IonQ revenue surges 755% to $64.7M as quantum computing gains momentum against AMD's $10.3B

IonQ reported first-quarter revenue of $64.7 million for the period ended March 2026, representing a 755% year-over-year increase. The quantum computing company achieved a gross margin of 24% and completed its acquisition of SkyWater Technology whilst introducing new earth monitoring capabilities. By comparison, Advanced Micro Devices generated $10.3 billion in revenue for the quarter ended March 2026, with a net income margin of 14%. The processor manufacturer entered a capacity agreement with Core Scientific and launched new processing hardware. The revenue comparison highlights the differing scales between the established artificial intelligence sector and emerging quantum computing industry. Whilst AMD demonstrates significantly larger absolute revenue figures, IonQ's triple-digit growth rate reflects the substantial expansion potential within quantum computing technology.

Yahoo Finance
Aug 4th, 2026
BigBear.ai vs. IonQ: Which tech stock is the better buy in 2026?

BigBear.ai and IonQ represent contrasting investment opportunities in the tech sector. BigBear.ai provides AI-driven decision intelligence solutions primarily to US federal agencies, focusing on logistics and cybersecurity challenges. In fiscal 2025, BigBear.ai reported revenue of $127.7 million, down 19.3% year-over-year, with a net loss of $293.9 million. The company maintains a current ratio of 1.8x and zero debt-to-equity ratio, though free cash flow was negative $42.5 million. IonQ develops trapped-ion quantum computing systems for applications in medicine, finance, and logistics, delivering services through cloud platforms including Amazon's. The company acquired SkyWater Technology in July 2026 to establish its own semiconductor foundry. Both companies face distinct challenges: BigBear.ai's heavy reliance on government contracts creates concentration risk, whilst IonQ pursues longer-term quantum computing opportunities.