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Added 3 mins ago
Systems Engineer – Laboratory Systems Engineering & Integration (XLab)
Astrion
Houston, TX
We are seeking an experienced Systems Engineer – Laboratory Systems Engineering & Integration (XLab) support the development, integration, and sustained operation of XLab, a multi-user test…
Added 14 mins ago
A
Electrical Engineer
Actalent
Halfmoon, NY
- $120,000 to $160,000 USD / year
We are seeking an Electrical Engineer to join a growing product development team focused on LED lighting systems, power electronics, and driver technologies. This role will be responsible…
Added 35 mins ago
Electronic Fabrication Technician
California Institute Of Technology Jet Propulsion Laboratory
United States
…analysis; advanced electronic packaging engineering, technology development and process engineering; technical facilities management and cleanroom services/certification; custom measurement…
Added 36 mins ago
VI
System Test Lead
Viasat, Inc.
Carlsbad, CA · Reston, VA · Germantown, MD
- $190,500 to $285,500 USD / year
We have an exciting new opportunity for a System Test Engineer to join our Government team! You will work with a cross functional team in the development of our latest generation government…
Added 36 mins ago
Systems Integration Engineer - Antenna Systems
Viasat, Inc.
Duluth, GA
…take on something new, you'll find leaders who support your development and help you turn your ambition into…
Added 36 mins ago
PN
Senior Software Engineer III
Pacific Northwest National Laboratory
Richland, WA · Seattle, WA
- $133,100 USD / year
An accomplished engineer with strong foundations in scalable system design, SI/ML development, and production software. You're ready to lead complex system components, mentor junior…
Added 36 mins ago
PN
Lead Software Engineer IV
Pacific Northwest National Laboratory
Richland, WA · Seattle, WA
- $161,300 USD / year
We are seeking an exceptional Lead Software Engineer to architect and build next-generation SI systems at PNNL, spanning agentic SI platforms, petabyte-scale data orchestration, and…
Added 36 mins ago
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Early Career Software Engineer
Pacific Northwest National Laboratory
Richland, WA
- $83,100 USD / year
We are seeking a motivated Early Career Software Engineer to join our dynamic team at PNNL and contribute to cutting-edge projects that shape the future of critical technology supporting…
Added 36 mins ago
PN
Software Engineer II
Pacific Northwest National Laboratory
Richland, WA · Seattle, WA
- $109,000 USD / year
We are seeking a motivated Software Engineer to join our dynamic team at PNNL and contribute to cutting-edge projects that shape the future of critical technology supporting national…
Added 46 mins ago
Senior Quality Assurance Engineer
Pearson
Remote, United States
As a QA Engineer, you will oversee quality assurance activities associated with software analysis. This includes developing test plans, performing exploratory testing and executing…
Added 48 mins ago
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Java Product Engineer / Full Stack Java Developer
Jobgether
Remote, United States
- $90,000 to $110,000 USD / year
The Java Product Engineer will take ownership of enterprise application development and modernization, ensuring that software solutions meet technical, operational, and business…
Added 49 mins ago
Firmware Engineer - GPU
NVIDIA USA
CA
We are searching for an outstanding software engineer to fill an exciting, yet fun role on our GPU Firmware team. You will be joining a team whose primary mission is solving the intricate…
Added 49 mins ago
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Entry Level Civil Design Engineer
Actalent
Brooklyn, NY
- $75,000 to $100,000 USD / year
HIRNG: Entry Level Civil Engineer!Job DescriptionWe are seeking a talented Civil Engineer to perform civil design tasks, focusing on roadway geometrics, grading, and drainage systems. This…
Added 52 mins ago
Associate Engineer
Unilever United States, Inc.
Trumbull, CT
You will be responsible for formulation, process development and validation (bench and pilot scale) cross brand and technologies in Hair North America. You will interact with Marketing,…
Added 55 mins ago
Staff Software Engineer (AI Native Development)
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NY · Carlsbad, CA · Marietta, GA
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Added 55 mins ago
Senior Product Manager
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NY · Carlsbad, CA · Marietta, GA
…agentic-first delivery model, where written implementation specs and test-driven development feed AI agents that generate tests and review pull requests. Product works the same way: we use…
Added 56 mins ago
Sr. Sustaining Mechanical Engineer
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Murrysville, PA
Sr. Sustaining Mechanical Engineer (Murrysville, PA)
Added 59 mins ago
Ground Systems Engineer I, Electrical
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Added 59 mins ago
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Responsible for the identification of safety hazards, the elimination/mitigation of hazards on projects, assist with development of project scopes, supports development of project…
Added 59 mins ago
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Competitive Intelligence Spec / R70198 / Remote
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…Competitive Intelligence Specialist within our International Business Development team who will report to the Senior Director, Strategy & Growth International. The successful individual in…
Added 59 mins ago
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Added 1 hour ago
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Added 1 hour ago
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Test Engineer
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Rancho Santa Margarita, CA
- From $65 USD / hour
Insight Global is looking for an experienced Test Engineer for a client providing secure aerospace and defense communications systems. These onsite roles in Rancho Santa Margarita,…
Added 1 hour ago
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Distribution Engineer I
TRC Companies, Inc.
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- $24.5 to $30 USD / hour
…latest technology to devise innovative solutions that stand the test of time. From pipelines to power plants, roadways to reservoirs, schoolyards to security solutions, clients look to TRC…
Added 1 hour ago
Senior Environmental Engineer
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Ulysses Inc.

PNT Software Engineer

San Francisco, CA, United States

$180,000 to $260,000 USD / year

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Job details

Pay: $180,000 to $260,000 USD / year
Posting language: English

Original job description

Ulysses is the ocean company. We design, manufacture, and operate autonomous vehicles for surface and subsea operations - taking on the most critical tasks across defense, commercial, and scientific missions. Our vertically integrated platform includes Mako, a modular AUV with 72-hour endurance and more onboard compute than any vehicle in its class; Leviathan, an autonomous surface vessel mothership; and Kraken, our automated launch-and-recovery system that closes the loop between surface and subsea with zero human intervention. The ocean covers 71% of the Earth's surface and drives a $2.6 trillion global economy, yet it remains the least monitored domain on the planet. We're changing that - building autonomous systems that collapse the cost of ocean operations by orders of magnitude so that persistent coverage becomes the baseline, not the exception. We operate globally today across defense, ocean science, and commercial survey, working with partners including the U.S. Navy, the Government of Australia, the Great Barrier Reef Foundation, and The Nature Conservancy. Founded in 2023 and headquartered in San Francisco, Ulysses has raised $48 million in funding from Andreessen Horowitz, Booz Allen Ventures, Harpoon Ventures, Pebblebed, Lowercarbon Capital, and others. Our team is lean, hands-on, and fast - we prototype in the shop, test on the water, and ship. If you want to work at the frontier, there's no frontier bigger than the ocean.

ABOUT THE ROLE

We're hiring a PNT (Positioning, Navigation, and Timing) Software Engineer to give our vehicles an accurate, reliable understanding of where they are and what's around them - above and below the waterline. This role will primarily focus on localization technologies, including inertial navigation, DVL, and GNSS, while contributing to our broader vision and acoustic development efforts. You'll work closely with our electrical, robotics, and mechanical engineering teams across Mako, Leviathan, and Kraken.

WHAT YOU'LL DO

Navigation and state estimation: architect and implement tightly-coupled navigation for subsea and surface vehicles using factor graphs. Fuse IMU, DVL, pressure, USBL/SBL acoustic positioning, and GNSS/RTK when surfaced, and keep position error bounded across multi-day dives.
Docking and recovery perception: contribute to vision and acoustic localization for our most critical moments - Mako finding and docking with Kraken for fully autonomous launch and recovery, and Leviathan operating safely around other vessels.
Surface situational awareness: fuse radar, AIS, and EO/IR cameras into a reliable track picture that drives collision avoidance and COLREGs-compliant autonomy on Leviathan.
Calibration: own IMU, DVL, and GNSS calibration end-to-end - IMU bias, scale-factor, and misalignment, DVL-to-IMU alignment and scale factor, and GNSS antenna lever arms at factory end-of-line, plus online calibration that keeps them accurate through shock, thermal cycling, and pressure.
Onboard compute and real-time software: contribute to bringing up and running perception on embedded Linux (Yocto, GPU-accelerated inference with TensorRT or similar), processing multi-camera video, sonar, and hydrophone arrays in real time within tight power budgets.
Core libraries: build the optimization, factor graph, and sensor-model libraries that other teams use for estimation, planning, and control.
Logging, replay, and validation: build logging and deterministic reprocessing of mission data so every dive becomes a regression test, and drive reliability improvements from field results.

ABOUT YOU

REQUIREMENTS

You've shipped perception or navigation software on autonomous vehicles, and you can show us what it does.
Experience deploying state estimation on real vehicles in real environments - air, ground, marine, or space - outside of labs and simulation.
Proven ability to take estimation systems from math to production code to field-validated performance.
Strong foundations in state estimation: Kalman filtering, factor graphs and smoothing, nonlinear least-squares optimization, and observability analysis.
Hands-on inertial navigation experience: IMU error modeling, preintegration, and tightly-coupled fusion with aiding sensors (GNSS, DVL, vision, or similar).
Sensor calibration experience: camera intrinsics, extrinsics, and camera-IMU calibration, ideally both on the factory floor and online in the field.
Proficiency in Rust or C++ for real-time, safety-critical software, and Python for prototyping and analysis.
Experience with optimization and estimation frameworks (Ceres, GTSAM, SymForce, or similar) - or experience writing your own.
Comfortable on embedded Linux compute: sensor drivers, time synchronization, and real-time performance on constrained hardware.
Strong debugging instincts: you can trace a bad estimate back to timestamps, calibration, sensor faults, or math, using logs and replay.
Experience building tools for logging, deterministic replay, and evaluation of autonomy software.
Ability to collaborate across electrical and mechanical: sensor selection, mounting, time sync, and the hardware realities that shape perception.
You have a track record of strong problem-solving skills and a demonstrated ability to work independently in dynamic environments.

NICE-TO-HAVES

Marine navigation and sensing experience (DVL, USBL/SBL, INS, multibeam, sidescan, or forward-looking sonar)
Acoustics and array processing: hydrophone or microphone arrays, beamforming, direction-of-arrival estimation
Advanced GNSS: RTK, carrier-phase and time-differenced carrier-phase processing, correction services
Deep learning perception deployed on edge hardware (TensorRT, ONNX), especially in degraded visibility
Embedded firmware experience: microcontrollers, CAN, bootloaders, and low-level sensor interfaces
Experience leading or mentoring a perception or navigation team

Think you're our next teammate? Apply and send examples of perception or navigation systems you've shipped or owned. Tell us what you built, how you knew it was working, what failed in the field, and how you made it reliable.

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More about this job

Skills

Robotics
Mechanical engineering
Estimating
Linux
Rust
C++
Python
Debugging
Problem solving
Work independently
Deep learning
Firmware
Coaching

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