Jobs in the United States

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Added 3 mins ago
IC
SoC Logic Design Engineer
Intel Corporation
CA · OR
- $105,650 to $149,150 USD / year
As a SoC Logic Design Engineer, you will actively contribute to the development, coding, and simulation of system-on-chip (SoC) designs. You will integrate logic from various IP blocks and…
Added 9 mins ago
Senior Principal Systems Engineer (Electromagnetic Environmental Effects (E3))
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems has an opening for a Senior Principal Systems Engineer (Electromagnetic Environmental Effects (E3)) to join our team of qualified, diverse individuals…
Added 9 mins ago
Principal Systems Engineer (Electromagnetic Environmental Effects (E3))
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems has an opening for a Principal Systems Engineer (Electromagnetic Environmental Effects (E3)) to join our team of qualified, diverse individuals within…
Added 15 mins ago
Sr Consultant, Software Engineer (AI Engineer)
Nationwide Life and Annuity Insurance Co
OH · AZ · IA
The Sr Consultant, Software Engineer (AI Engineer) is accountable for turning AI strategy into trusted, reusable technology capabilities that enable Nationwide to build and operate AI…
Added 17 mins ago
C
Senior .NET Full Stack Engineer with C#
Cognizant
Charleston, WV
- $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 17 mins ago
C
Senior Full Stack Engineer – .NET & C#
Cognizant
Charleston, WV
- $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 17 mins ago
C
Senior Java Full Stack Engineer – Spring Boot & AWS
Cognizant
Charleston, WV
- $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
C
Senior Support Engineer I
Cleo
Charleston, WV
- $70,000 to $80,000 USD / year
We’re looking for an experienced EDI and integration professional who thrives on solving complex technical challenges and improving how support teams operate. You’ll serve as a trusted…
Added 17 mins ago
Senior Network Engineer
Cognizant
Charleston, WV
We are seeking an experienced Senior Network Engineer to design, implement, secure, operate, and optimize enterprise data-center, campus, branch, wireless, and hybrid-cloud networks. The…
Added 17 mins ago
Senior Workday Security Engineer
CVS Health
Charleston, WV
CVS Health is seeking an experienced Senior Workday Security Engineer to join the HR Technology Workday Security team. This role designs, supports, governs, and optimizes security across…
Added 17 mins ago
CMC Mechanical Analysis Lead Engineer
GE Aerospace
Charleston, WV
The Lead Engineer will be responsible for supporting and leading mechanical analysis projects for CMC hot section hardware and/or interfacing metallic components with specific focus on…
Added 17 mins ago
C
GCP data Engineer
Cognizant
Charleston, WV
- $100,000 to $120,000 USD / year
Cognizant is seeking an experienced Knowledge Graph Data Engineer to build and operate the connectivity, profiling, and graph/search foundation that powers enterprise ontology and knowledge…
Added 25 mins ago
Embedded Software Engineer, Merlin Platform
Amazon Kuiper Manufacturing Enterprises LLC
Redmond, WA
Take ownership of the complete software development lifecycle, encompassing design, testing, deployment, and mission integration.
Added 27 mins ago
Systems Integration/Test Engineer-Early Career
Lockheed Martin
Courtland, AL
Plans, implements, tests, documents, and maintains solutions for the integration and testing of in-house developed and COTS/GOTS components, elements, subsystems and/or systems. Synthesizes…
Added 28 mins ago
Engineer II, Google Cloud
PwC
Birmingham, AL
As a Engineer II, Google Cloud you will contribute to the design, build, testing, and optimization of cloud-native applications on Google Cloud, supporting work across the full software…
Added 28 mins ago
ATE (Automated Test Equipment) Systems Engineer
Insight Global
Huntsville, AL
…and depot repair seeking a hands-on Automated Test Equipment Engineer to develop, integrate, troubleshoot, and sustain test systems for radar, RF, avionics, and defense electronic…
Added 28 mins ago
Software Engineer
Capstone Research Corporation
Huntsville, AL
Software Engineer Capstone Research Corporation is seeking to expand our team. Capstone Research Corporation is headquartered in Huntsville Alabama. We are a customer-oriented engineering…
Added 28 mins ago
Secret Systems Integration Engineer
Insight Global
Huntsville, AL
The Systems Integration Engineer will support the integration, testing, and troubleshooting of hardware and software across testbeds and operational environments within the Missile Defense…
Added 28 mins ago
Cybersecurity Team Lead
SAIC
Huntsville, AL
SAIC is seeking an experienced Cybersecurity Engineer/Cybersecurity Team Lead to lead cybersecurity engineering, compliance, and security authorization activities for a next-generation…
Added 28 mins ago
RF Communications Engineer
Leidos
Huntsville, AL
The Lead RF Communications Engineer will support the Leidos Space Platforms Portfolio in the development of a lunar terrain vehicle system and support equipment, primarily responsible for…
Added 28 mins ago
CMC Mechanical Analysis Lead Engineer
GE Aerospace
Huntsville, AL
The Lead Engineer will be responsible for supporting and leading mechanical analysis projects for CMC hot section hardware and/or interfacing metallic components with specific focus on…
Added 28 mins ago
Engineer II, Software Assurance, Product Security (Remote)
CrowdStrike
Montgomery, AL
As a Security Engineer II, you will focus on securing our open-source footprint and upstream dependencies. You will perform technical security assessments of GitHub organizations and…
Added 28 mins ago
Senior Product Manager
Acxiom
Montgomery, AL
Participate in technical and business design sessions covering data flows, identity, permitted uses, delivery methods, and platform integration.
Added 28 mins ago
C
Senior Java Full Stack Engineer – Spring Boot & AWS
Cognizant
Montgomery, AL
- $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 28 mins ago
C
Senior .NET Full Stack Engineer with C#
Cognizant
Montgomery, AL
- $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…

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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