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63 systems engineer iii jobs at 30 companies in San Marcos, TX

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Systems Engineer III
Austin, Texas, United States
$120k-$165k/yr OnsiteFull Time
Applied Materials
Applied MaterialsNASDAQ: AMAT: Global leader in materials engineering for the semiconductor industry.
4+ YOEBachelor's degree, 4+ years experience; systems engineering design and analysis across electrical, mechanical, physics, algorithms, and software; prototype, test, integrate, and support subsystems; ability to provide remote and onsite field support.
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Systems Engineer III
Austin, Texas, United States
$120k-$165k/yr OnsiteFull Time
Applied Materials
Applied MaterialsNASDAQ: AMAT: Global leader in materials engineering for the semiconductor industry.
4+ YOEBachelor's degree required, 4+ years of experience, experience designing and analyzing complex subsystems, prototype development, system integration, and cross-discipline collaboration.
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Systems Engineer III
San Antonio, Texas, United States
OnsiteFull Time
Astrion
Astrion: Provider of mission-critical services for defense and federal agencies.
10+ YOERequires an advanced technical degree with 10 years’ experience, bachelor's degree with 12 years, or 15 years’ related experience; DoD experience, active Secret clearance, U.S. citizenship, and specified cloud, database, security, and Agile certifications.
AWS Certified Solutions Architect, AWS Cloud Practitioner, Microsoft Azure, Oracle, OCI, CompTIA Security+ CE, Agile/Scrum, AF Systems Engineering Assessment Model (SEAM), AFI 63-101, AFMAN 63-144, AFMCI 63-1202, AFMAN 63-128, AF/ 99-103
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Power Systems Engineer III
Austin, Texas, United States
RemoteFull Time
Electric Power Engineers
Electric Power Engineers: Private power-systems consulting firm providing grid modeling, interconnection, transmission planning, and software for utilities and developers.
2+ YOE2+ years power system modelling and studies, bachelor’s in electrical engineering with power emphasis, EMT modelling experience, control tuning/HVDC a plus, proficiency with PSCAD/PSSE/EMTP/Digsilent/ETAP/CYMCAP.
PSCAD, EMTP, PSSE, Digsilent Powerfactory, ETAP, CYMCAP
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Staff Cyber Systems Engineer
San Antonio, Texas, United States
$177k-$266k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
8+ YOERequires active Secret clearance, DoD 8570 IASAE II (CISSP) with ability to obtain IASAE III, experience with NIST SP 800-160 and RMF, systems engineering experience across SDLC, and 8+ years technical experience (varies by degree).
NIST SP 800-160, RMF, DOORS, CAMEO, SonarQube, Fortify, DevSecOps
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Staff Cyber Systems Engineer
San Antonio, Texas, United States
$177k-$266k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
8+ YOERequires advanced systems engineering experience (8+ years), active Secret clearance, DoD 8570 IASAE Level II (CISSP) with ability to obtain Level III within 6 months, RMF/RMF documentation and NIST SP 800-160 experience, and DoD cybersecurity standards familiarity.
DOORS, CAMEO, SonarQube, Fortify, NIST SP 800-160, RMF, DoD 8570, Agile, DevSecOps
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Design Engineer III
Schertz, Texas, United States
OnsiteFull Time
Southland Industries
Southland Industries: Mechanical, electrical, and plumbing engineering and construction firm.
5+ YOEBachelor's degree in engineering or related field, PE license, and 5+ years of experience. Requires systems design expertise, plan reading, communication, and CADD and Microsoft Office proficiency.
CADD, Microsoft Office, Microsoft Excel
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Design Engineer III
Schertz, Texas, United States
OnsiteFull Time
Southland Industries
Southland Industries: Mechanical, electrical, and plumbing engineering and construction firm.
5+ YOEBachelor's degree in engineering or related field, PE license, and 5+ years of experience. Requires systems design knowledge, plan reading, CADD, Microsoft Office, and strong communication skills.
CADD, Microsoft Office, Microsoft Excel
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Mechanical Engineer III
San Antonio, Texas, United States
$90k-$105k/yr OnsiteFull Time
Knight Aerospace
Knight Aerospace: Aerospace manufacturer designing modular airworthy systems, palletized solutions, and ground-support equipment for military cargo aircraft.
10+ YOEBachelor's degree in mechanical, aerospace, or mechatronics engineering; 10–15 years of aerospace experience; advanced CAD, structural analysis, GD&T, aircraft systems, and military standards expertise.
AutoCAD, DraftSight, SolidWorks, SolidWorks PDM, Geometric Dimensioning and Tolerancing (GD&T), CATIA
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Engineer III or IV - Energy Storage
Denver or Minneapolis or Fargo or San Antonio
$109k-$184k/yr HybridFull Time
Mortenson
Mortenson: US-based construction and real estate development firm.
4+ YOEBSEE or related degree, PE preferred, 4+ years experience (III) or 7+ (IV), experience in power systems/energy storage preferred, Procore/CYMCAP/CDEGS/AutoCAD/Bluebeam/Excel familiarity, strong communication and QA/QC skills.
Procore, CYMCAP, CDEGS, AutoCAD, Bluebeam, Microsoft Excel
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Software Development Engineer III - AI Engineer
Austin, Texas, United States
$146k-$205k/yr OnsiteFull Time
Expedia Group
Expedia GroupNASDAQ: EXPE: Global travel technology powering online booking platforms.
5+ YOE5+ years software engineering; production ML/AI experience; ML/LLM tooling; cloud and distributed systems; in-office Austin, TX.
AWS, GCP, Azure, Kafka, Flink, Spark, LangChain, LangGraph, Langfuse, LlamaIndex, Pinecone, OpenAI, Gemini, Anthropic, Python, Java, API design, SQL, NoSQL
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Electrical Engineer III Arc Flash
Alabama or Arizona or Arkansas or Florida or Georgia or Indiana or Michigan or Missouri or Nevada or Ohio or Oklahoma or South Carolina or Texas or Utah or Virginia or Washington or West Virginia or Austin or Tempe
$114k-$154k/yr RemoteFull Time
Meade Engineering
Meade Engineering: Private U.S. engineering firm designing and commissioning data-center and commercial infrastructure for builders, cloud providers, and developers.
4+ YOERequires 4+ years of electrical engineering design experience, a bachelor's in electrical engineering, power systems and arc flash expertise, code knowledge, communication skills, and proficiency with listed design software.
SKM, ETAP, Easy Power, Microsoft Office, AutoCAD, Bluebeam, BIM, Revit, NFPA 70 (NEC), NFPA 70E, IEEE 1584
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Simulation Engineer III
Austin, Texas, United States
RemoteFull Time
SkyGrid
SkyGrid: Private aerospace software providing high-assurance airspace integration and traffic-management services for autonomous aircraft.
7+ YOEBachelor's in aerospace/CS/robotics or related,7+ years simulation development/systems integration,experience integrating third-party simulation tools and APIs,proficiency with Python,MATLAB,Simulink,strong communication and organizational skills.
Python, MATLAB, Simulink
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Spacecraft Propulsion Manufacturing Engineer III
Cedar Park, Texas, United States
OnsiteFull Time
Firefly Aerospace
Firefly AerospaceNASDAQ: FLY: Space and defense technology providing launch solutions.
8+ YOEBachelor's in engineering,8+ years manufacturing engineering experience,experience with complex assemblies,reading technical drawings,troubleshooting,high attention to detail,experience with high-pressure fluid systems and data analysis.
Python, Microsoft Excel, SQL, Teamcenter, Odoo
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2w
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Cloud Engineer III, Falcon Exposure Management (Hybrid)
Sunnyvale or New York City or Austin or Redmond
$120k-$180k/yr HybridFull Time
CrowdStrike
CrowdStrikeNASDAQ: CRWD: AI-native platform for cybersecurity and threat protection.
5+ YOE5+ years building production systems at scale; proficiency in Go, Python, or Java; distributed systems expertise; production LLM and agentic systems experience; frontier-model SDK experience; strong engineering judgment.
Go, Python, Java, Anthropic, OpenAI, RAG, E-Verify
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Electrical Engineer III - Substation P&C
Round Rock or Denver or Toronto or Calgary
HybridFull Time
RRC Power & Energy
RRC Power & Energy: Private multidisciplinary engineering firm serving renewable power, battery storage, and broader energy-infrastructure clients.
5+ YOEBachelor's in electrical/renewable energy engineering, PE preferred, 5+ years in power system/substation P&C, experience with relay settings, protection design, utility interconnection, and industry standards.
PSSE, ETAP, ASPEN, SKM, SCADA, Microsoft Word, Microsoft Excel, Microsoft Outlook
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System Development Engineer III, Network Config Lifecycle Management
Austin, Texas, United States
$151k-$205k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Multinational technology focused on e-commerce and cloud computing.
5+ YOESenior systems engineer with 5+ years systems development and 6+ years programming/architecture experience; mentoring/tech lead experience; proficiency in modern OOP languages, Linux/Unix administration, distributed systems, and a relevant bachelor's degree.
C++, Java, Objective C, C#, Python, Golang, PowerShell, Ruby, Linux, Unix, Ubuntu, CentOS, RedHat, Solaris, AWS
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Sales Engineer III
Austin, Texas, United States
OnsiteFull Time
Dialpad
Dialpad: AI-powered cloud communications platform providing omnichannel contact-center and business communications tools for enterprises.
3+ YOE3-5 years customer-facing experience in solution architecture/sales engineering; strong communication; scripting in JavaScript/Python; able to demo, configure systems, train users.
JavaScript, Python
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Electrical Engineer III - Substation P&C
Round Rock or Denver or Toronto or Calgary
HybridFull Time
RRC Power & Energy
RRC Power & Energy: Private multidisciplinary engineering firm serving renewable power, battery storage, and broader energy-infrastructure clients.
5+ YOEBachelor's in electrical or related field, PE preferred, 5+ years power system/substation P&C experience, relay settings, protection studies, EMTP/analysis tools, utility interconnection, and strong communication skills.
PSSE, ETAP, ASPEN, SKM, SCADA, Microsoft Word, Microsoft Excel, Microsoft Outlook
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Building Engineer III
Austin, Texas, United States
OnsiteFull Time
Endeavor Real Estate Group
Endeavor Real Estate Group: Private Austin commercial real estate firm developing, investing, leasing, and managing multifamily, retail, office, and industrial properties.
7+ YOEHigh school diploma or GED; 7–10 years building engineering or related experience with some project supervision; CFC Universal within 90 days, valid driver’s license, ability to lift 50 lbs, work order system experience (Angus), Paycom, Microsoft Office/Teams/SharePoint, lead/mentor team, emergency on‑call response.
Angus, Paycom, Microsoft Word, Microsoft Excel, Microsoft Outlook, Teams, SharePoint
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