Jobs in the United States

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Added 4 mins ago
CO
Fire Captain - Internal Recruitment Only
City of Casa Grande
Casa Grande, AZ
- $42.02 to $58.61 USD / hour
Updates and maintains files, records, charts and other documents; gathers, compiles and synthesizes data; maintains required records and prepares reports as required
Added 6 mins ago
Lead Platform Engineer
Valeris, Inc.
Remote, United States
In the role of Lead Platform Engineer, you will own the end-to-end architecture of the patient services platform, ensuring Salesforce Life Sciences Cloud, orchestration and workflow…
Added 8 mins ago
Technical Marketing Engineering Technical Leader
Cisco Systems, Inc.
Milpitas, CA
At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions…
Added 9 mins ago
Principal, Product Service Engineer
Alcon Vision, LLC. Company
Lake Forest, CA
…devices are designed and supported worldwide. As Principal Engineer, Product Service Engineering, you will influence product design, lead service readiness, and advance secure remote…
Added 12 mins ago
C
Senior Full Stack Engineer – .NET & C#
Cognizant
Honolulu, HI
- $86,000 to $99,000 USD / year
As a Senior Full Stack Engineer – .NET & C#, you will make an impact by designing and developing scalable enterprise applications that support healthcare payer operations, including…
Added 12 mins ago
C
Senior .NET Full Stack Engineer with C#
Cognizant
Honolulu, HI
- $86,000 to $99,000 USD / year
As a Senior .NET Full Stack Engineer with C#, you will make an impact by designing and developing scalable enterprise applications that support healthcare payer operations, including…
Added 12 mins ago
C
Senior Java Full Stack Engineer – Spring Boot & AWS
Cognizant
Honolulu, HI
- $86,000 to $99,000 USD / year
As a Senior Java Full Stack Engineer – Spring Boot & AWS , you will make an impact by designing and delivering scalable, secure, cloud-based applications using Java, Spring Boot, React, and…
Added 17 mins ago
Senior Power System Protection Engineer
Jobgether
Remote, United States
…Our partner is looking for a Senior Power System Protection Engineer based in the United…
Added 18 mins ago
Sr Product Manager - Solutions
Cisco Systems, Inc.
San Jose, CA
At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions…
Added 37 mins ago
Engineer III - Transmission Planning
Qualus
Orlando, FL
…differentiated capabilities across grid modernization, resiliency, security, and sustainability. The firm partners with utilities, commercial, industrial, data center, and government…
Added 37 mins ago
Manufacturing Engineer II (2nd Shift, Onsite)
Collins Aerospace
Seminole, FL
The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Added 50 mins ago
Senior Software Development Engineer in Test (SDET)
Jobgether
Remote, United States
The Senior Software Development Engineer in Test (SDET) will play a key role in ensuring the quality, reliability, and performance of innovative digital healthcare technology solutions. In…
Added 51 mins ago
Ground Software DevOps Release Engineer III (TS/SCI Required) - Blue Ring
Blue Origin Personnel, LLC
Denver, CO · Reston, VA
…space missions and advancing ground capabilities. The DevSecOps Engineer will bridge the gap between development, security, and operations. In this role, you will own the end-to-end…
Added 56 mins ago
Senior Solutions Engineer
DomainTools
Remote, United States
For more than 25 years, the world's most advanced security teams have relied on DomainTools to identify malicious infrastructure before attacks happen. This is not a company coasting on…
Added 56 mins ago
Senior Software Engineer
DomainTools
Remote, United States
DomainTools is hiring a Senior Software Engineer to join our Engineering Team. This role is perfect for a creative problem-solver with deep expertise in large-scale data engineering and a…
Added 56 mins ago
Senior Software Engineer
DomainTools
Remote, United States
DomainTools is hiring a Senior Software Engineer to join our Engineering Team. This role is perfect for a creative problem-solver with deep expertise in large-scale data engineering and a…
Added 56 mins ago
Senior Software Engineer
DomainTools
Remote, United States
DomainTools is hiring a Senior Software Engineer to join our Engineering Team. This role is perfect for a creative problem-solver with deep expertise in large-scale data engineering and a…
Added 56 mins ago
Senior Software Engineer
DomainTools
Remote, United States
DomainTools is hiring a Senior Software Engineer to join our Engineering Team. This role is perfect for a creative problem-solver with deep expertise in large-scale data engineering and a…
Added 56 mins ago
Senior Product Marketing Manager
DomainTools
Remote, United States
5+ years in B2B product marketing, with meaningful time in cybersecurity. Threat intelligence, DNS or domain data, fraud, security analytics, or SOC-facing products is a strong plus.
Added 56 mins ago
Senior Product Marketing Manager
DomainTools
Remote, United States
5+ years in B2B product marketing, with meaningful time in cybersecurity. Threat intelligence, DNS or domain data, fraud, security analytics, or SOC-facing products is a strong plus.
Added 56 mins ago
Senior Product Marketing Manager
DomainTools
Remote, United States
5+ years in B2B product marketing, with meaningful time in cybersecurity. Threat intelligence, DNS or domain data, fraud, security analytics, or SOC-facing products is a strong plus.
Added 56 mins ago
Senior Product Marketing Manager
DomainTools
Remote, United States
5+ years in B2B product marketing, with meaningful time in cybersecurity. Threat intelligence, DNS or domain data, fraud, security analytics, or SOC-facing products is a strong plus.
Added 56 mins ago
Senior Product Marketing Manager
DomainTools
Remote, United States
5+ years in B2B product marketing, with meaningful time in cybersecurity. Threat intelligence, DNS or domain data, fraud, security analytics, or SOC-facing products is a strong plus.
Added 1 hour ago
DN
AWS Cloud Data Engineer 3065-18
Delaware Nation Industries
Dahlgren, VA
- $150,000 to $170,000 USD / year
DNI is seeking a highly qualified Data Engineer to support the Joint Warfare Analysis Center (JWAC) under Air Force JWAC IT Services (JITS) Task Order 2. The Data Engineer will design,…
Added 1 hour ago
RF Systems Engineer II - 303207
Delaware Nation Industries
Wright-Patterson Air Force Base, OH
The System Engineer II supports the development and evaluation of RF spectrum certification documents for commercial off-the-shelf (COTS) equipment, non-developmental initiatives (NDI), and…

Greywright Inc

Senior GNC Engineer

Boston, MA, United States

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Job details

Experience: 8+ years of GNC experience, including technical leadership and building or leading a team, on real world systems.
Posting language: English
Posted: Oct 31, 2026

Original job description

Greywright is hiring a Senior Guidance, Navigation, and Control (GNC) Engineer to lead the build-out and improvement of the algorithms that keep platforms on course, from design and simulation through fielding. You will build and lead the GNC team and set the direction for advancing baseline GNC capabilities, owning architecture and technical direction from requirements through embedded software and test. You'll work closely with platform hardware, software, and systems engineering. In this role you will help build the most advanced unmanned maritime vessels in the world.

What you'll do

Develop and tune guidance and control laws for high-speed craft that stay stable and responsive through nonlinear, regime-dependent dynamics across the full speed envelope.
Extend and maintain high-fidelity 6-DOF simulations and models of vehicle dynamics across speed regimes, sensors, actuators, and sea states.
Develop, update, and maintain navigation filters (e.g., Kalman / EKF / UKF) fusing IMU, GNSS, odometry, signals of interest, and other sensor data, including position sources that are sparse, intermittent, or of variable accuracy.
Design measurement validation, outlier rejection, and fault detection so navigation degrades gracefully when aiding sources drop out, disagree, or change in quality.
Derive GNC requirements, error budgets, and stability margins; run Monte Carlo and linear analyses to verify performance.
Use system identification and on-water test data to build vehicle models and refine controller tuning.
Implement GNC algorithms in embedded software (C/C++) and support code generation from models.
Plan and execute software-in-the-loop, hardware-in-the-loop, and field tests; analyze test data.
Support sensor and actuator selection, calibration, and integration with avionics and hardware teams.
Build and lead the GNC team: recruit and hire engineers, establish the team's tools, processes, and standards, own the roadmap for evolving the GNC baseline, mentor engineers, and present results in design reviews.

What you bring

Proven track record of engineering leadership.
Ability to work well in a fast moving and dynamic team environment.
B.S. in Aerospace, Mechanical, or Electrical Engineering, or a related field.
8+ years of GNC experience, including technical leadership and building or leading a team, on real world systems.
Solid grounding in classical, modern, and nonlinear control theory, rigid-body dynamics, and estimation.
Deep experience with Kalman filters and inertial navigation, including fusing asynchronous, intermittent, or degraded aiding measurements.
Experience designing controllers for systems with strongly nonlinear or regime-dependent dynamics (e.g., gain scheduling, adaptive, or robust control).
Experience inheriting, validating, and improving fielded GNC software.
Proficiency in MATLAB/Simulink or Python for modeling, simulation, and data analysis.
Strong C/C++ embedded software skills.
Clear written and verbal communication, and comfort working across hardware and software teams.
Willingness to travel up to 50% of the time when needed.
This role requires access to ITAR/EAR-controlled data; U.S. person status is required as defined by 22 CFR 120.62.

Nice to have

M.S. or Ph.D. in a GNC-related discipline.
Fielded heritage: GNC you designed has been deployed on a real vehicle or system.
Experience with optimal control, trajectory optimization, or MPC.
Experience with marine vehicle dynamics, high-speed surface craft, or vessel autopilots.
Experience with alternative or GNSS-degraded navigation (e.g., signals of opportunity, feature-based, or collaborative navigation).
Hardware-in-the-loop test bench development.
Exposure to DO-178C, NASA-STD-8739.8, or similar software assurance processes.
Eligibility to obtain a U.S. security clearance.
Meaningful early-stage equity.
Great health, dental, and vision insurance.
Unlimited vacation.

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More about this job

Skills

C
C++
Analyse test data
Leadership
Electrical engineering
Lead a team
Estimating
Scheduling
The MathWorks MATLAB
Python
Data analysis
Communication skills

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