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Python Test Software Developer Jobs in California, United States
720+ python test software developer jobs from 320+ companies hiring in California, United States.
1mo
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AI QA Engineer
United States
RemoteFull Time
4+ YOE4+ years QA or testing experience; strong API testing and automation; understanding AI/LLM behavior; testing non-deterministic systems.
API Testing, Automation, Python, CI/CD, AI Testing
2mo
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Support Engineer I
United States
$80k-$100k/yr RemoteFull Time
Experience fixing defects on production codebase; full-stack work with Python (Django) and TypeScript (React); debugging with monitoring/logging tools; strong testing culture (Pytest, Cypress, RTL); security/compliance in regulated healthcare; collaboration with product and engineering teams.
Python, Django, TypeScript, React, Pytest, Cypress, React Testing Library, SumoLogic, NewRelic
4w
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Full Stack Cloud Engineer (AI Security Platform)
United States
RemoteFull Time
Strong full-stack experience; Go and/or Python; TypeScript + React; AWS or Azure; Kubernetes; CI/CD; automated testing.
Go, Python, TypeScript, React, AWS, Azure, Kubernetes, Docker, CI/CD
2w
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Marketing Web Developer
Irvine or Lakewood or Las Vegas or Mesa or Provo or San Diego or Seattle
$133k-$175k/yr HybridFull Time
4+ YOE4 years React/Typescript/JavaScript; Bachelor's degree or equivalent; experience with A/B testing and analytics platforms.
React, Typescript, JavaScript, Optimizely, Google Analytics 4, Google Tag Manager, BigQuery, Contentful, Sanity, KMS Lighthouse, Python
2mo
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Embedded Validation & Tools Engineer - OTA
Palo Alto, California, United States
$140k-$170k/yr OnsiteFull Time
5+ YOE5+ years validating embedded devices and firmware updates; strong Python; C/C++; embedded Linux/RTOS; CI/testing; hardware debugging; OTA, security, networking.
Python, C/C++, Linux, RTOS, CI tools, Jenkins, GitLab CI, CircleCI, Wireshark, JTAG, serial, UART, CAN, MQTT, HTTP(S), CoAP, Docker, QEMU
2mo
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Quality Assurance Engineer (Mobile Applications)
Irvine, California, United States
$100k-$140k/yr OnsiteFull Time
0+ YOE0-3 years mobile app testing; manual and automated testing; testing tools; focus on UI/UX and user perspective; write and execute test cases.
Python, Mobile testing tools
3w
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QA Engineer 2
Canada or United States
$75k-$105k/yr RemoteFull Time
Manual and automated QA, test design, AI tooling in QA, Agile, strong communication.
JavaScript, TypeScript, Java, C#, Playwright, Selenium, Jenkins, Python, DataDog
2mo
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QA Automation Engineer
United States
RemoteFull Time
3+ YOE3–5 years in test automation for healthcare, build automation frameworks, UI/API/DB automation, AI-powered testing, HIPAA compliance.
Playwright, Selenium, RestAssured, Cucumber, NUnit, TestNG, CI/CD, Azure DevOps, BDD, SpecFlow, C#, Java, Python, JavaScript
1w
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Application Engineer
San Jose, California, United States
OnsiteFull Time
5+ YOEMaster or bachelor in engineering; 5+ years experience; Java/C++ and scripting; IC test/Applications experience; customer interaction; travel ~20%
Java, C, C++, Python, Perl, SmarTest
5h
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FBS Fullstack Developer Jr/Mid (C# / .NET) Remote
Mexico or North America
RemoteFull Time
2+ YOEC#/.NET middleware developer with 1-2 years SQL/TSQL, VS Code, English proficiency; intermediate C#/.NET, SQL, and VS Code; JavaScript, scripting, and cloud basics are a plus; strong documentation and testing mindset.
C#, .NET, SQL, VS Code, JavaScript, PowerShell, Python, GitHub, Azure, AWS, GCP, SonarCube, Jenkins
2mo
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Quality Engineer EMEA / APAC / South America (Remote)
United States
RemoteFull Time
Experience with Kubernetes, databases, automated testing, CI/CD, Linux, scripting, Git, Agile testing.
Kubernetes, PostgreSQL, MySQL, MongoDB, Linux, Jenkins, Python, Bash, Git, Helm, OpenShift OLM, Go
2mo
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Junior QA Engineer
United States
RemoteFull Time
0+ YOEEntry-level QA role requiring basic testing knowledge, strong documentation, and willingness to learn.
Playwright, Python, Typescript, JIRA, TestRail
5h
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Senior Marketing Engineer
United States or United Kingdom or Canada
$155k-$185k/yr RemoteFull Time
Strong JS and full-stack web dev; growth-focused web systems; A/B testing; CMS/analytics; AI/tooling; autonomous; strong comms; CS/engineering degree or equivalent
JavaScript, Ruby, ColdFusion, Python, CMS, Analytics, A/B testing, LLMs, AI tooling
2mo
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Sr. Backend Engineer - Charlotte AI (Remote, EST)
United States
$140k-$215k/yr RemoteFull Time
Experience in backend microservices, Golang, distributed systems; familiarity with ML/LLMs and cloud platforms; strong coding, testing, and collaboration.
Go, Python, Docker, Kubernetes, AWS, Redis, S3, EC2, IAM, Kafka, Git, Cassandra, Elasticsearch
6d
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Sr. Software Validation and HIL Engineer, Power Electronics
Torrance, California, United States
$135k-$168k/yr OnsiteFull Time
5+ YOEBachelor's in electrical engineering; Master's preferred; 5+ years HIL experience; strong scripting and test automation skills.
Typhoon, NI, OPAL-RT, dSPACE, Python, Perl, Unix shell, Py-Test, CANalyzer, CANape, JTAG/DAP, Bazel, Jenkins, Docker, SCons
2w
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QA Engineer
Santa Clara, California, United States
OnsiteFull Time
3+ YOE3+ years in software testing; proficient in Python, Selenium; experience with CI/CD; relational and NoSQL databases; API testing; strong SDLC knowledge.
Python, Selenium, CI/CD, Jenkins, Artifactory, MySQL, PostgreSQL, MongoDB, REST, API automation, JMeter
1mo
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QA Engineer (Automation)
United States
RemoteFull Time
3+ YOE3+ years in software testing with a strong focus on automation; experience with Python/JavaScript/TypeScript; backend and frontend testing; Git workflows; test plans and documentation.
TypeScript, JavaScript, Python, Pytest, Jest, Playwright, Cypress, Puppeteer, Swagger, Postman, Git
1mo
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Firmware Engineer
Redwood City, California, United States
OnsiteFull Time
3+ YOE3+ years real-time embedded software development; BS or MS in Computer or Electrical Engineering; proficient in C/C++ and Python; motor control concepts; hardware interaction and testing; experience with embedded tooling and protocols.
C/C++, Python, I2C, SPI, UART, RS-485, CAN, CAN-FD, EtherCAT, RTOS, CI/CD, HIL, FOC, PWM, Sensor interfacing
2mo
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Design Verification Engineer, Principal
Santa Clara, California, United States
$159k-$238k/yr OnsiteFull Time
10+ YOE10+ years of verification and firmware/software development; SystemVerilog/UVM; test planning; scripting in Python/Perl; C/C++/ARM; Linux; networking knowledge preferred.
SystemVerilog, UVM, Python, Perl, Linux, C++, ARM assembly, EDA Verification tools
1mo
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Security Engineer
United States or United States
$140k-$150k/yr RemoteFull Time
5+ YOE5+ years in security engineering or software development with a security focus; strong AWS security experience; threat modeling; automation of security tests; experience with ISO 27001 and TX-RAMP; coding skills (Python/C#); incident response and governance.
AWS, CI/CD, IAM, Infrastructure as Code, SAST, DAST, Vulnerability management, ISO 27001, TX-RAMP, Python, C#
2mo
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QA Engineer II
United States
$125k-$165k/yr RemoteFull Time
3+ YOE3+ years in software quality engineering with strong automation; hands-on in automated test infrastructure; Python and Java; Linux; CI/CD; backend APIs testing.
Python, Java, Pytest, Linux, CI/CD
2d
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QA Engineer, AI & Platform Infrastructure
El Segundo, California, United States
$131k-$150k/yr RemoteFull Time
3+ YOE3+ years software QA or test automation; Docker/Kubernetes; Python/TypeScript; React/Next.js/Svelte; CI/CD; AI testing experience preferred.
Docker, Kubernetes, Python, TypeScript, React, Next.js, Svelte, Playwright, Cypress, GitHub Actions, Jenkins, LangChain, CrewAI, LlamaIndex
2mo
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Kigo - QA Automation Engineer
United States
$85k-$115k/yr RemoteFull Time
2+ YOE2+ years software development; strong TS/Python/Rust; interest in test automation; Git/CI/CD; problem-solving; quick learner; clear communication; AI-assisted tooling experience.
Playwright, Cypress, Pytest, AWS, Git, CI/CD, TypeScript, Python, Rust, API testing, Browser automation, AI-assisted development tools
2mo
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Hardware Diagnostics Senior Infrastructure Engineer
San Jose, California, United States
$120k-$195k/yr OnsiteFull Time
2+ YOE2+ years in diagnostics, hardware bring-up, test or manufacturing automation; strong debugging across hardware, firmware, and system layers; proficient in Python and C; Bachelor's in CS/CE.
Python, C, Linux
2mo
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Sr. HIL Automation Engineer
United States or United States
$163k-$234k/yr RemoteFull Time
5+ YOEFive years software development experience; testing tools for product development; hardware-in-the-loop; hardware/firmware; CAN, BLE/WiFi/LTE; Linux; test instrumentation; data tools.
Python, SQL, Pandas, Databricks, Linux, CAN, BLE, WiFi, LTE, GNSS, GPS simulators, power supplies, power analyzers, battery simulators, test instrumentation
1mo
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Quality Engineer, Level 4
Los Angeles or Santa Monica
$91k-$161k/yr OnsiteFull Time
2+ YOE2+ years QA experience; Bachelor in a technical field; Python, C/C++, Java; Jira, Git; automation and testing of software/hardware.
Python, C/C++, Java, Jira, Git, Automation
3w
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Sr Robotic Algorithm & Controls Engineer
Santa Clara, California, United States
$125k-$201k/yr HybridFull Time
Develop, test robotic control algorithms; strong C/C++, Python; robotics fundamentals; regulated medical devices experience; travel up to 5%.
C++, Python, Matlab, ROS, Software Development
3w
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Firmware Engineer
San Carlos, California, United States
OnsiteFull Time
3+ YOE3+ years in firmware/embedded development; C/C++ for embedded; experience with microcontrollers/FPGAs; BS in Electrical/Computer Engineering or related field; hardware/software integration and testing.
C, C++, JTAG, oscilloscopes, logic analyzers, RTOS, Python, FPGAs
1mo
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Principal GNC Engineer
Denver or Long Beach
$180k-$260k/yr OnsiteFull Time
15+ YOELead end-to-end GNC design, testing, and operations; develop flight software; perform state estimation, sensor fusion, and navigation analyses; mentor engineers.
C++, Python, GNC flight software, Star trackers, IMUs, GNSS, 6-DOF simulations, SIL/HIL, Monte Carlo, covariance analysis
1mo
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Flight Controls Engineer
Poway, California, United States
$81k-$142k/yr HybridFull Time
4+ YOERequires engineering degree with several years of experience in flight controls, GNC, and software/he‑testing; proficiency in C/C++, MATLAB, Python; DoD clearance preferred.
C, C++, MATLAB, Python, Simulink
2mo
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Staff Product Development Engineer - ATE Content Developer
Austin or Santa Clara
$100k-$500k/yr HybridFull Time
7+ YOE7+ years semiconductor test experience; BS/MS in EE/ECE/CE; proficient with ATE platforms and DFT/ATPG; strong coding in C/C++, Java, Python, scripting; able to debug across hardware, software, and silicon.
Advantest V93K, Teradyne UltraFlex+, SmarTest 8, SSN, STIL, WGL, Python, Perl, TCL, C++, Java
3w
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Senior Staff Quality Engineer - S3
San Francisco, California, United States
RemoteFull Time
12+ YOE12+ years in systems software quality engineering; strong C/C++, Python/shell scripting; Linux file system testing; test strategy ownership and leadership.
C/C++, Python, Shell, gcc, gdb, g++, git, Linux
2w
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DevOps Security Engineer
Miami or United States
RemoteFull Time
5+ YOE5+ years in software engineering with hands-on security/QA; fullstack development; penetration testing; AWS; IaC; containers; security tooling; strong communication.
AWS, Terraform, CloudFormation, Pulumi, Docker, Kubernetes, Bash, Python, HashiCorp Vault, AWS Secrets Manager, Selenium, Cypress, Jest, Postman, OWASP, Burp Suite, OWASP ZAP, GitHub Actions, CI/CD, KMS, VPC, IAM, CloudWatch, Prometheus, Grafana
4w
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Quality Assurance Engineer
Toronto or United States
$105k-$130k/yr RemoteFull Time
4+ YOESenior QA Engineer with 4+ years of software testing/SDET experience; strong Python/Java/Go skills; cloud (AWS) experience; API/Security testing; CI/CD and release engineering; networking knowledge; strong English communication.
Python, Java, Go, AWS, Jenkins, GitHub Actions, CI/CD, VMware, Hyper-V
1mo
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Senior Systems Engineer
Sunnyvale, California, United States
OnsiteFull Time
Experience with RF systems, waveforms, embedded software/HDL; DoD processes; programming in C/C++, Python; networking and lab testing knowledge; BS in EE/CS, MS preferred.
C, C++, Python, VHDL, Verilog, Embedded Linux, ARM, Xilinx MPSoC, IPMI, Redfish, BMC
1mo
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Senior QA Engineer
United States
RemoteFull Time
7+ YOE7+ years in software QA, manual and automation testing; strong automation framework experience; SDLC/AGILE; programming in Java/Python/JavaScript; API testing; SQL; CI/CD; leadership skills.
Selenium, Cypress, Playwright, Appium, TestNG, JUnit, Postman, REST Assured, SQL, Jenkins, GitLab CI, GitHub Actions
1mo
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Robotics Engineer, Deployment & Testing - San Mateo
San Mateo, California, United States
OnsiteFull Time
Skild AI: A robotics and AI technology developing advanced robotic intelligence and software.
BS/MS in Computer Science, Robotics, Engineering or related field; proficiency in C/C++/Rust/Go and Python; real-time embedded systems; ROS/ROS2; Test Management tools; experience deploying software on real robots.
C, C++, Rust, Go, Python, ROS/ROS2, Embedded Systems, Test Management
1mo
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Application Security Engineer
United States
$135k-$200k/yr RemoteFull Time
Development or software engineering experience; proficiency in high-level languages; ability to evaluate code for vulnerabilities; experience with SOA/microservices; familiarity with CodeQL or static analysis; experience with black-box testing.
Java, Golang, JavaScript, Python, CodeQL, Static Analysis, Web Security
4d
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Senior QA Engineer (C++)
United States
$115k-$180k/yr RemoteFull Time
12+ YOE12+ years in software quality assurance; Bachelor's in CS or related field; strong QA processes; experience with SaaS, client/server, Unix/Linux/Windows; test automation; Python; Git/HG SVN; JIRA; Quality Center; Docker/Kubernetes (nice to have); CI/CD (Jenkins); performance/testing tools.
Python, GitHub, SVN, JIRA, Quality Center, Docker, Kubernetes, Apache JMeter, Jenkins, Load Testing, Soak Testing, Stress Testing, C++, Unix, Linux, Windows
4w
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Senior Systems Verification & Validation Engineer
San Francisco, California, United States
$165k-$195k/yr OnsiteFull Time
8+ YOE8+ years in design and test of complex electromechanical/robotic systems; BS in Mechanical/Electrical/Software; hands-on test infrastructure; Python/SQL; data analysis; V&V methods; cross-functional collaboration.
Python, SQL, Unix/Linux
HiringCafe market data
Python Test Software Developer Jobs market signals in California, United States
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
720+
Hiring companies
320+
Fresh sample
41% new in 30d
Salary visibility
61% show pay
Companies appearing in this market
MarvellNICEAdvantestAetherfluxALSOAstera LabsCapgeminiCareTria
Work location mix in visible results
Remote: 22Onsite: 18Hybrid: 4
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