303 software test engineer jobs at 112 companies in Lathrop, CA

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Engineer, Test Software
San Jose, California, United States
$130k-$160k/yr OnsiteFull Time
Ayar Labs
Ayar Labs: Develops optical interconnect technology for high-speed data movement.
0+ YOEBS in EE/CS + 1+ yrs or MS in EE/CS + 0–2 yrs; proficient in Python, instrument control protocols, Git, unit testing/CI-CD, MongoDB/PostgreSQL; familiarity with C/C++ or Java and data structures.
Python, C/C++, Java, JavaScript, GPIB, RS232, USB, SPI, I2C, UART, Git, unit testing, CI/CD, MongoDB, PostgreSQL, Linux, Jira, Claude, Gemini
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Staff Software Engineer, Test Infrastructure
San Jose, California, United States
$210k-$234k/yr OnsiteFull Time
Muon Space
Muon Space: Designs, builds, and operates low Earth orbit satellite constellations.
10+ YOE10+ years software engineering experience, expert in software test infrastructure, Hardware-in-the-Loop and simulation-driven testing; strong Python, Git, CI/CD, Linux, and Docker skills; B.S. in CS or equivalent; excellent communication.
Python, Git, GitHub Actions, Linux, Docker, Kubernetes, C/C++, Hardware-in-the-Loop, Software-in-the-Loop, oscilloscopes, multimeters, power supplies, logic analyzers
2mo
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Senior System Software Test Engineer, Networking
Santa Clara, California, United States
$152k-$288k/yr OnsiteFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Designs graphics processing units and artificial intelligence hardware.
5+ YOEB.S. in Engineering/CS or equivalent, 5+ years in software quality engineering, strong coding/debugging skills, experience with Layer2/Layer3 protocols, test tools (Ixia/Spirent), Python, and Unix/Linux.
Ixia, Spirent, Python, Unix, Linux, Git, Gerrit, Jenkins, Claude, Cursor
2mo
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Senior System Software Test Engineer, Networking
Santa Clara, California, United States
OnsiteFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
5+ YOEB.S. in engineering or CS; 5+ years software quality engineering; Python or scripting; Layer2/3 protocols; test tools; Unix/Linux; CI knowledge; automated test development.
Python, Ixia, Spirent, Git, Gerrit, Jenkins, Linux, Unix, CI tools
2mo
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Software Engineer - Test Automation
Milpitas, California, United States
$118k-$200k/yr OnsiteFull Time
KLA
KLANASDAQ: KLAC: Provides process control and yield management for semiconductor manufacturing.
6+ YOE6+ years in hands-on software test automation across UI, API, and system-level testing.
C++, C#, Java, Python, R, TensorFlow, PyTorch, Keras, SQL, NoSQL, Redis, MongoDB, Kafka, Kubernetes, MySQL, Hadoop, BigQuery, Jenkins, Postman, RestSharp
2mo
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Software Development Engineer In Test
Fremont, California, United States
$140k-$180k/yr HybridFull Time
DTEX Systems
DTEX Systems: Provides software for insider risk management and data protection.
5+ YOEBachelor's degree or equivalent; 5+ years software testing and test automation; strong Linux, networking, and enterprise app knowledge; Python and Bash; Selenium UI automation; virtualization and AWS; AI/ML QA exposure.
Python, Bash, Selenium, VMware ESXi, VirtualBox, AWS, OpenSearch, Redis, Apache Spark, Linux, Networking, Databases, Security testing tools
3mo
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Principal Software ML Test Engineer
Santa Clara, California, United States
$180k-$300k/yr HybridFull Time
d-Matrix
d-Matrix: Develops high-performance semiconductor chips for generative AI inference.
10+ YOELead test planning, automation, and execution for ML compute software; strong Python; 10+ years; MS/PhD preferred; experience with DL frameworks.
Python, Linux, Pytest, Jenkins, GitLab, TensorFlow, Transformers, PyTorch
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
1w
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Sr. Staff CPU Software Test Engineer
Santa Clara or Austin
$181k-$271k/yr OnsiteFull Time
Qualcomm
QualcommNASDAQ: QCOM: Designs and manufactures semiconductors and wireless telecommunications products.
4+ YOEBachelor's/MS/PhD in Engineering/CS/Info Systems (with corresponding years experience), 3+ years programming (C/C++/Java/Python), experience in SW/FW validation, test automation, and server OS environments.
C, C++, Java, Python, Ubuntu Server, RHEL, SUSE, Windows Server, BIOS/UEFI, BMC
3mo
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Senior Software & AI Test Engineer
Sunnyvale, California, United States
$125k-$175k/yr OnsiteFull Time
Covalent
Covalent: Provides advanced analytical laboratory services for materials characterization.
6+ YOE6–10+ years in software testing and quality engineering; strong Python; experience building test frameworks; expertise in API testing, CI/CD, and AI/ML validation.
Python, GitHub Actions, Jenkins, CI/CD, MLflow, Weights & Biases, Git
1mo
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Software Development Engineer in Test
San Jose, California, United States
$119k-$198k/yr HybridFull Time
Thales
ThalesEuronext Paris: HO: Develops electronics and digital systems for aerospace and defense.
2+ YOEIVVQ planning and execution experience with test automation (Pytest, Playwright), CI/CD (GitLab), AI/ML and LLM use for testing, cloud and virtualization familiarity, 2+ years SDET experience; Bachelor's or Master's in a related field.
Pytest, Playwright, Large Language Models (LLMs), GitLab, Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), OpenStack, VMware, Xen, KVM, VirtualBox, Hyper-V, IIS, Active Directory, Apache, JBoss, DNS, DHCP, NFS, LDAP, CI/CD
1mo
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Software Development Engineer in Test
San Jose, California, United States
$119k-$198k/yr HybridFull Time
Thales
ThalesEuronext Paris: HO: Designs and manufactures electronic systems for aerospace and defense.
2+ YOEPlan and execute IVVQ for encryption products, design ML-enhanced test automation, use LLMs for test generation, integrate CI/CD pipelines, and have 2+ years SDET experience; must be authorized to work in the U.S. (no visa sponsorship).
Pytest, Playwright, LLMs, GitLab, Amazon AWS, Microsoft Azure, GCP, Open Stack, SaaS, PaaS, VMWare, Xen, KVM, VirtualBox, Microsoft Hyper-V, IIS, Microsoft Active Directory, Apache, JBoss, DNS, DHCP, NFS, LDAP
2mo
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Systems Software Engineer, Test & Automation Infrastructure
Fremont, California, United States
$81k-$132k/yr OnsiteFull Time
Coherent
CoherentNYSE: COHR: Manufactures lasers, engineered materials, and optical networking components.
0+ YOEBachelor's degree in computer engineering, electrical engineering, or computer science; 0-1+ years in software/test/embedded; Python, C/C++, or similar; automation/infrastructure experience; hardware/software interface knowledge.
Python, Git, C, C++, C#
2mo
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Integration Test Engineer
Milpitas, California, United States
$90k-$120k/yr OnsiteFull Time
Tarana Wireless
Tarana Wireless: Develops next-generation fixed wireless access broadband technology.
2+ YOEBachelor’s degree in Electrical Engineering or Computer Engineering; 1-3+ years hardware testing, integration, or related experience; Python for test automation; familiarity with Ansible; knowledge of software versioning and hardware test deployment; strong analytical skills.
Python, Ansible
2d
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Staff Software Development Engineer in Test, PKI
Santa Clara, California, United States
$158k-$226k/yr OnsiteFull Time
Netskope
NetskopeNASDAQ: NTSK: Cloud-native cybersecurity and data protection platform for enterprises.
8+ YOE8+ years software engineering with 5+ years SDET experience, expert Python, PyTest/Robot/Selenium/Playwright, PKI expertise (X.509, CA, CSR, CRL/OCSP, TLS/mTLS), experience testing distributed cloud systems, Bachelor's degree required.
Python, PyTest, Robot, Selenium, Playwright, GitHub Copilot, Cursor, Gemini, PostgreSQL, MongoDB, AWS, Azure, GCP, Docker, Kubernetes, Helm, GitHub Actions, Jenkins, Drone, Terraform, Ansible, Prometheus, Grafana, Datadog, Linux, Istio, Linkerd, Venafi, HashiCorp Vault, HSMs
2mo
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Principal Software Development Engineer in Test
San Francisco or Milpitas
$160k-$170k/yr OnsiteFull Time
Saviynt
Saviynt: Provides AI-powered identity governance and cloud security platforms.
9+ YOE3+ Mgmt9+ years in Software QE with 3+ years leading QE teams; strong leadership, API testing, and CI/CD experience; Bachelor's in CS or related field.
Jenkins, Docker, Kubernetes, Git, Sonar, Automation frameworks
3mo
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Senior Test Engineer
Colorado Springs or San Jose
$108k-$155k/yr OnsiteFull Time
Sanmina
SanminaNASDAQ: SANM: Designs and manufactures complex electronics and mechanical systems.
8+ YOEBS in engineering or computer science; 8+ years in test engineering; strong OS knowledge (Linux/Windows/Unix); scripting (Python, Bash); hardware/software interop; BMC/BIOS/SES firmware experience preferred; GPU testing a plus.
Python, Linux, Bash, Git, Jira, Bugzilla, Windows, Unix, BMC, BIOS, SES, GPU testing
2mo
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Principal Software Automation / Test Engineer
Santa Clara, California, United States
$147k-$238k/yr HybridFull Time
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
10+ YOEMS/BS in CS or EE; 10+ years QA/Test Automation; 2+ years AI/ML; REST API automation; strong security, cloud, and distributed systems knowledge.
REST API, Python, Go, Selenium, Playwright, Puppeteer, AWS, Azure, GCP, TCP/IP, DNS, SSL/TLS, Azure AD, Okta, Ping Identity
2mo
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Principal Test Framework Software Engineer
Austin or Milpitas
OnsiteFull Time
Graphcore
Graphcore: Produces specialized processors for artificial intelligence workloads.
Bachelor’s or Master’s in CS/EE or related field; proven automation/test framework experience; Python, Bash; Linux; strong problem solving and collaboration; experience with scalable automation; CI/CD experience preferred.
Python, Bash, Linux/Unix, Test frameworks, CI/CD, Git
1w
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Software Development Engineer in Test (Multiple Positions)
San Jose, California, United States
$137k-$240k/yr OnsiteFull Time
TikTok
TikTok: Global short-form video hosting and social media platform.
1+ YOEMaster's with 1 year or Bachelor's with 3 years in CS/engineering/IT/math/statistics/physics; experience building REST API automation with Python, mobile or large-scale client-server QA, test plans, unit/integration/load testing, and bug tracking.
Python