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10 software test engineer jobs at 9 companies in Modesto, CA

2mo
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Embedded Flight Software Test Engineer Staff
Littleton or Pleasanton or Sunnyvale
$114k-$227k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Requires active TS/SCI clearance and experience in embedded software test development using MBSE and Cameo System Modeler; Python, IBM DOORS, Git/GitLab, and Agile/Jira experience; test development, execution, and result analysis skills.
Model Based Systems Engineering (MBSE), Cameo System Modeler, Python, Jira, IBM DOORS, SysML, UML, Git, GitLab, STARS, EZ-Framework
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3mo
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Staff II Software Engineer
Pleasanton, California, United States
$225k-$282k/yr OnsiteFull Time
BlackLine
BlackLineNasdaq: BL: Cloud platform for automating financial close and accounting processes.
Experience designing, developing, and testing software applications; knowledge of full stack development; familiar with Agile/Waterfall methodologies.
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2mo
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Senior Software Engineer
Pleasanton, California, United States
$156k-$196k/yr HybridFull Time
BlackLine
BlackLineNASDAQ: BL: Provides cloud software to automate financial close and accounting.
7+ YOE7+ years in Web/Mobile/REST API testing and test automation; Master's in Mathematics, CS or related; experience with Appium, CI/CD, cloud SaaS, and SQL.
Appium, Selenium, CI/CD, Cloud platforms, SQL, C#, NUnit, XUnit, MSTest
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1mo
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Sr Software Development Engineer, Product Engineering – API Platform & Agentic AI
Pleasanton, California, United States
$176k-$264k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
8+ YOE8+ years software engineering experience; 5+ years with TypeScript or Python; Bachelor's in CS/Engineering or equivalent; strong algorithms, API design (REST/GraphQL/SOAP/OpenAPI), testing, observability, and mentoring skills.
TypeScript, Python, OpenAPI, Swagger, REST, SOAP, GraphQL, JUnit, ScalaTest, Postman, Mockito, JaCoCo, Scoverage, Git, Cursor, Claude Code, GitHub Copilot, MCP
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1w
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Optics Inspection Analysis Software Developer
Livermore, California, United States
$176k-$267k/yr HybridFull Time
Lawrence Livermore National Laboratory
Lawrence Livermore National Laboratory: Develops science and technology for United States national security.
U.S. citizenship with ability to obtain DOE Q clearance, bachelor’s in CS or related, strong Python 3 and image-processing experience (OpenCV, scikit-image, NumPy), MATLAB familiarity, automated testing and performance optimization skills.
MATLAB, Perl, Java, Python 3, OpenCV, scikit-image, NumPy, SciPy, Pandas, SQL, Oracle, GitLab, GitHub, Bitbucket, Docker, CI/CD
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3d
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Senior GNC Engineer
Pleasanton, California, United States
$160k-$210k/yr OnsiteFull Time
Benchmark Space Systems
Benchmark Space Systems: Manufacturer of propulsion systems for small satellites.
5+ YOEBachelor's in relevant engineering/physics,5+ years GNC experience on space vehicles,proficiency with MATLAB/Simulink,experience with HIL validation,control theory,orbital/mechanics knowledge and ability to implement and test flight software.
MATLAB, Simulink, C, Rust, GMAT, STK, FreeFlyer, cFS, F'
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Senior/Principal R&D Systems Engineer - Special Programs, Onsite
Livermore, California, United States
$140k-$281k/yr OnsiteFull Time
Sandia National Laboratories
Sandia National Laboratories: Conducts science and engineering research for national security.
5+ YOEBachelor's degree + 5 years relevant experience (or equivalent); ability to obtain DOE Q-level security clearance with SCI; systems engineering, requirements, testing, IT/software architecture, and data analysis skills; ability to work onsite in Livermore, CA.
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1mo
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Manager II, Engineering
Pleasanton, California, United States
$170k-$230k/yr HybridFull Time
Blackhawk Network
Blackhawk Network: Provider of global branded payment and gift card solutions.
7+ YOE2+ Mgmt7+ years software development experience (or 9+ equivalent), 2+ years managing engineers, expertise in modern JavaScript/TypeScript and React, front-end performance and accessibility, front-end testing, API patterns, cloud experience (AWS preferred), and strong cross-functional communication.
JavaScript, TypeScript, React, Jest, Cypress, Playwright, Next.js, REST, GraphQL, AWS, CI/CD
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2mo
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Manager II, Engineering
Pleasanton, California, United States
$170k-$230k/yr HybridFull Time
Blackhawk Network
Blackhawk Network: Provider of branded payment solutions and gift cards.
7+ YOE2+ Mgmt7+ years software development experience (or 9+ years equivalent), 2+ years management experience, strong front-end expertise with JavaScript/TypeScript and React, experience with performance, accessibility (WCAG), testing (Jest, Cypress, Playwright), and cloud (AWS).
JavaScript, TypeScript, React, Jest, Cypress, Playwright, Next.js, REST, GraphQL, AWS, WCAG, Core Web Vitals
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4w
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Advanced Truck Technician / Mechanic - Monday - Friday Nights
French Camp, California, United States
OnsiteFull Time
The Papé Group
The Papé Group: Provides capital equipment sales, rentals, and maintenance services.
5+ YOE5+ years repairing Class 7/8 trucks; strong diagnostics, engine/transmission/axle/steering/brake/electrical repair; Cummins and MX software preferred; Kenworth Essentials certification preferred; must provide tools and pass pre-employment drug test.
Cummins, MX
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