22 python and java developer jobs at 7 companies in Simi Valley, CA
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Tool Development and Integration Engineer
Colorado Springs or El Segundo
OnsiteFull Time
The Aerospace Corporation: Provides technical expertise and research for national space programs.
1+ YOEBachelor's in STEM, ≥1 year relevant experience with space systems or algorithms, programming experience in MatLab/C/C++/Java/Python/FORTRAN, Microsoft Office proficiency, ability to obtain U.S. security clearance.
MatLab, C, C++, Java, Python, FORTRAN, Microsoft Word, Microsoft PowerPoint, Microsoft Excel
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
8+ YOESTEM degree with significant experience (varies by degree), active US Secret clearance, Matlab/Simulink and autocoding experience, GNC team experience, ability to obtain Special Program Access (SAP); C/C++, Java, Python and flight sciences preferred.
Matlab, Simulink, C/C++, Java, Python, NGAS Common Products Core VMS
Mid-level or Senior Modeling and Simulation Engineer
El Segundo or Mesa
$120k-$198k/yrOnsiteFull Time
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
5+ YOEBachelor's degree in engineering/CS/math/physics/chemistry, systems engineering experience, proficiency with MATLAB/Python/C++ (or similar), experience developing models/simulations for space systems; Top Secret/SCI clearance required.
EY-Parthenon - Strategy and Execution - Growth Platforms - Software Engineer - Sr Assoc/Consultant (New York, NY, US, 10001-8604)
New York or Atlanta or Boston or Chicago or Dallas or Denver or Detroit or Houston or Los Angeles or McLean or Hoboken or Philadelphia or San Francisco or Seattle
$130k-$185k/yrHybridFull Time
EY: Global firm providing audit, tax, and professional consulting services.
1.5+ YOEBachelor's degree plus ~2 years related experience (or graduate degree plus ~18 months). Experience with backend/full‑stack development (Python, Java, Scala, TypeScript), cloud (AWS/GCP), containerization, IaC, LLM integration, and productionizing AI tooling; strong communication and client‑facing skills.
Python, Java, Scala, TypeScript, AWS, GCP, Microsoft Copilot
Mid-level or Senior Modeling and Simulation Engineer
El Segundo or Mesa
$120k-$198k/yrOnsiteFull Time
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
Degree in engineering/CS/math/physics/chemistry, systems engineering experience, proficiency with MATLAB, Python or C++, MBSE/SysML experience preferred, simulation of satellite communications and orbital design preferred.
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBachelor's in STEM +2 years (or Master's + some experience), active U.S. Secret clearance, scripting with MATLAB/Python/C++/Java, simulation frameworks (AFSIM, Suppressor, STK), modeling, analysis, and visualization experience.
System Admin/Engr I, Ring and Blink CS Technology Enablement
Hawthorne, California, United States
OnsiteFull Time
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
1+ YOEBachelor's or equivalent,1+ years programming experience in at least two of Python, Java, Perl, PHP, Ruby, or Bash; Linux systems administration; experience in 24/7 production environments; strong scripting, automation, and troubleshooting skills.
Eagan or Frisco or New York City or Ann Arbor or Toronto or San Francisco or Los Angeles or Irvine or McLean or Washington
$171k-$318k/yrHybridFull Time
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
8+ YOEPhD or Master’s plus comparable experience; 8+ years building IR/NLP systems; experience with LLMs/GenAI, production ML delivery, prior people management, and strong Python/Java/Scala skills.