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270 senior software testing engineer jobs at 128 companies in South Gate, CA

3mo
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Senior Electrical Engineer - Software (Brooklyn, NY, US)
Brooklyn or Ambler or Los Angeles or Seattle
$150k-$170k/yr OnsiteFull Time
Hatch
Hatch: Provides global engineering, project delivery, and professional services.
10+ YOESenior rail vehicle electrical software engineer; 10+ years in software engineering and software QA; BS/MS in Electrical/Computer Engineering; strong communication skills; EIT/PE desirable.
IEEE standards, Software Quality Assurance, Software testing, Rail vehicle software, System integration
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3d
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Senior Software Engineer
Burbank, California, United States
$170k-$200k/yr HybridFull Time
Deluxe
Deluxe: Provides global media production, localization, and content distribution services.
5+ YOERequires 5+ years of software engineering experience, strong Python and backend/API development skills, AI/ML integration experience, testing and CI/CD proficiency, and knowledge of asynchronous programming and microservices.
Python, FastAPI, Flask, Django, REST APIs, OpenAI, LangChain, Hugging Face, AWS Bedrock, Vertex AI, NLP, OCR, RPA, CI/CD, Temporal, Step Functions, Airflow, AWS, GCP, Azure
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2mo
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Senior Software Engineer
San Francisco or Miami or Atlanta or Salt Lake City or Phoenix or Washington D.C. or Los Angeles or Seattle or Chicago or Boston or Austin or New York City
$153k-$205k/yr RemoteFull Time
Circle
CircleNYSE: CRCL: Digital currency issuer and blockchain financial infrastructure provider.
6+ YOE6+ years professional software development with Java and Go; bachelor’s in CS or equivalent; led small technical teams; experience with payment systems, RESTful APIs, cloud services, and SQL; strong system design, testing, and communication skills.
Java, Go, AWS, Google Cloud, Microsoft Azure, SQL, NoSQL, RESTful API
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2mo
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Senior Embedded Software Engineer
Los Angeles, California, United States
$140k-$200k/yr HybridFull Time
Silvus Technologies
Silvus TechnologiesNYSE: MSI: Develops advanced mobile ad-hoc network radios for mission-critical communications.
5+ YOEBachelor's in engineering/CS, 5+ years embedded software experience (3 with advanced degree), expertise in C and Linux kernel driver development, U.S. citizenship required, background check and drug test required.
C, Linux kernel, ARM, RISC-V, AMD UltraScale+, MPSoC, Microchip Polarfire SoC, BSP, NIST FIPS 140-3, NIAP Common Criteria, CNSA (Commercial National Security Algorithm), IPsec, Ethernet
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4d
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Senior Software Engineer - Telematics Control Unit
Torrance, California, United States
$70-$85/hr OnsiteFull Time
Goken
Goken: Provides engineering and product development services for the mobility industry.
8+ YOEDegree in computer science, software engineering, or related field, or equivalent experience; 8+ years in automotive firmware/software development; expertise in embedded systems, telematics, vehicle platforms, testing, and security.
CAN, CAN-FD, LIN, Ethernet, FlexRay, ISO 26262, ASIL, MISRA C/C++, AUTOSAR, ECUs, TCUs, microcontrollers, HAL, bootloaders, BSPs, RTOS, FreeRTOS, Linux, LTE/5G, GPS/GNSS, Bluetooth, Wi-Fi, MQTT, gRPC, Protobuf, HTTP/REST, OTA, HSM, Secure Boot, TLS, HIL, oscilloscopes, logic analyzer, Vector, CANoe, CANalyzer
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3w
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Senior Software Engineer, Manufacturing Test (EagleEye)
Costa Mesa, California, United States
$191k-$253k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
8+ YOEBS degree in a technical field,8+ years building and deploying test automation for lab/production equipment; proficiency with Python and LabVIEW; experience writing instrument drivers and using modern software engineering practices; eligible for U.S. Secret clearance.
Python, LabVIEW, Git, Docker, CI/CD, gRPC, Protocol Buffers, RESTful APIs, oscilloscopes, spectrum analyzers, DAQs, load banks
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4d
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Senior Software Engineer - OMS
Fort Worth or Palmdale or Atlanta or Denver or Huntsville
$120k-$160k/yr OnsiteFull Time
Lynx Software Technologies
Lynx Software Technologies: Provides secure, safety-certified software for aerospace and defense.
5+ YOEBachelor's degree in STEM, 5+ years of C++ development, OMS architecture, Linux mission software, DDS, service-oriented design, ICDs, data modeling, simulation, testing, Secret clearance, and 10% travel.
C++, Linux, DDS, Atlassian Tools, Confluence, JIRA, Bitbucket, Java, MOSA, FACE, CI/CD, EAP
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1w
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Senior Software Engineer - Android
United States or San Francisco or Los Angeles or Chicago or Dallas or New York City or London
$165k-$250k/yr RemoteFull Time
Nextdoor
NextdoorNYSE: NXDR: Hyperlocal social networking platform for neighborhood communication and services.
5+ YOE5+ years of engineering experience or advanced domain expertise; strong Android development skills, testing experience, mentoring ability, and familiarity with Kotlin, networking, UI architecture, and modularization.
Kotlin, Jetpack Compose, GraphQL, Claude, Gemini, ChatGPT, Glean, JUnit, MockK, Roborazzi, OkHttp, Retrofit, Apollo GraphQL, MVI, Coroutines, Mavericks, Gradle, Metro, Android
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Senior Software Engineer in Test
Irvine, California, United States
$157k-$185k/yr OnsiteFull Time
Field AI
Field AI: Develops autonomous software brains for robots in unstructured environments.
5+ YOE5+ years software engineering experience; strong TypeScript/JavaScript skills; deep Playwright experience; CI/CD pipeline management; testing for web APIs and complex simulation/hardware interactions.
Playwright, TypeScript, JavaScript, REST, GraphQL, GitHub Actions, GitLab CI, CircleCI, Docker, AWS, GCP
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1mo
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Senior Software Engineer
Glendale or Bristol
$149k-$199k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces media content and operates global theme parks.
5+ YOE5+ years industry experience; proficiency in Java/Kotlin/Python/JavaScript; experience with microservices, REST APIs, AWS (S3, Lambda, EC2), SQL/MongoDB/OpenSearch, Apache Kafka, testing and code review.
Java, Kotlin, Python, JavaScript, AWS, S3, Lambda, EC2, SQL, MongoDB, OpenSearch, Apache Kafka
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1mo
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Senior Software Engineer - Acquisition and Funnel
Michigan or Detroit or Los Angeles County or San Francisco
$112k-$239k/yr RemoteFull Time
Rocket Companies
Rocket CompaniesNYSE: RKT: Provides digital mortgage, real estate, and personal finance services.
5+ YOE5+ years professional software engineering experience; hands-on with Node.js, React, and TypeScript; full-stack ownership, CI/CD, automated testing, production monitoring/observability, and experience handling regulated or sensitive data.
Node.js, React, TypeScript, Next.js, NestJS, PostgreSQL, TypeORM, Docker, AWS, GitHub, Nx Monorepo, Amplitude, Sentry, Splunk, Dynatrace
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2mo
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Senior Test Engineer
El Segundo, California, United States
$140k-$197k/yr OnsiteFull Time
Radiant
Radiant: Designs and manufactures portable, mass-produced nuclear microreactors.
2+ YOEUndergraduate engineering degree; 2+ years in engineering problem-solving, design, analysis, or testing; strong hardware-software integration experience.
Python, UNIX, Procedures testing environments
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4w
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Senior Software Engineer, Growth (Payment Localization) (Copy)
Los Angeles or San Francisco
$190k-$215k/yr HybridFull Time
Linktree
Linktree: A platform to consolidate and share multiple digital links.
5+ YOE5+ years software engineering experience; strong full-stack skills with TypeScript, Node.js, React, SQL and cloud services; experience with growth experimentation, A/B testing, data analysis, and AI-assisted development.
TypeScript, Node.js, React, PostgreSQL, MySQL, GraphQL, AWS, SQL, Snowflake, BigQuery, Claude, Cursor, Codex, Devin
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1w
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LoopNet - Senior Software Engineer
Irvine or Orange County
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
7+ YOEBachelor’s degree and 7+ years of C#/.NET production development required. Experience with scalable backend systems, APIs, testing, architecture, mentoring, and AWS preferred.
C#, .NET, .NET Core, AWS, Claude Code, GitHub Copilot, Vue.js, React, TypeScript, Microsoft SQL, MySQL, Amazon S3, Amazon SQS, Amazon DynamoDB, Amazon ElastiCache, Apache Kafka, Datadog, microservices, distributed systems, Docker, Kubernetes, CI/CD, DevOps, Infrastructure as Code, Git, BigQuery, Databricks, Snowflake, Python
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2mo
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Senior Software Engineer, Infrastructure, Google Ads
Irvine or Los Angeles
$174k-$253k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
5+ YOEBachelor's degree or equivalent experience; 5 years programming in C++; 3 years testing/maintaining/launching software and 1 year software design/architecture; 3 years developing large-scale infrastructure or distributed systems; EMR not mentioned.
C++
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1mo
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Sr. Software Engineer
Lake Forest, California, United States
OnsiteFull Time
Cognizant
CognizantNasdaq: CTSH: Provides IT consulting and digital business process services.
5+ YOE5+ years software engineering experience; strong JavaScript/TypeScript and React; experience with micro-frontends, frontend SDKs, REST API integrations, and automated testing (Jest, Cypress, Playwright).
JavaScript, TypeScript, React, Jest, Cypress, Playwright, REST APIs
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1mo
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LoopNet - Senior Software Engineer
Irvine, California, United States
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
7+ YOE7+ years production C#/.NET development, bachelor's degree, experience building APIs/backends, testing, cloud (AWS) experience, mentoring, and familiarity with AI coding tools.
C#, .NET, .NET Core, Claude Code, GitHub Copilot, Vue.js, React, TypeScript, Microsoft SQL, MySQL, AWS S3, SQS, DynamoDB, ElastiCache, Apache Kafka, Datadog, Docker, Kubernetes, CI/CD, BigQuery, Databricks, Snowflake, Python
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2mo
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Senior Spacecraft Software Test Engineer
Redondo Beach, California, United States
$150k-$200k/yr OnsiteFull Time
Impulse Space
Impulse Space: Developing in-space transportation services and orbital transfer vehicles.
5+ YOEBachelor's in engineering or CS, 3+ years developing embedded test plans/scripts, 5+ years with Python and C++, experience with hardware-in-the-loop and CI/CD preferred.
Python, C++, Docker, CI/CD
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3w
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Senior Product Software Engineer (Swift)
Glendale or Seattle or New York City
$142k-$190k/yr OnsiteFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
5+ YOE5+ years iOS development experience (3+ with Swift), strong UI framework experience, agile experience, full software lifecycle, strong communication and testing/CI familiarity.
Swift, Objective-C, UIKit, SwiftUI, AVKit, StoreKit, AVFoundation, HLS, MPEG-DASH, CMAF, iOS, tvOS
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2mo
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Sr. Software Engineer, Components Test (Starshield)
Hawthorne, California, United States
$165k-$230k/yr OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
5+ YOEBachelor's in CS/Engineering with 5+ years in software development; proficient in C/C++/Python; test automation; Linux/Windows; hardware/software integration.
C, C++, Python, Linux, Windows, TCP/IP, GPIB, I2C, CAN bus, Modbus, VISA, Git, CI/CD, Automation
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