# Sean Han

> QA Lead, Test Automation

Location: San Jose, California, United States
Profile: https://flows.cv/seanhan

- QA/automation lead with extensive experience in cloud infrastructure and application deployment, AWS services, networking, security, API, UI, backend, ML & CI/CD pipelines. Identified requirements and took solutions from initial test design to full testing suite/infrastructure.  
- Collaborated across multiple teams up to leadership level. Built and executed test strategy and plans across multiple products and platforms, defined test scope/milestones/deliverables, led QA teams. 
- Designed and implemented automation framework and automated testing to ensure CI/CD. 
- Able to pick up new things quickly in a self-motivated way and collaborate well with different teams. Always excited to take on challenging projects.

## Work Experience
### Staff Software Engineer @ Juniper Networks
Jan 2022 – Present | Sunnyvale, California, United States
- Led engineering effort of resolving customer escalation cases on Juniper routers/firewalls/security products etc. Analyzed, troubleshot, and triaged issues.
- Deployed and tested cloud infrastructure and services using various AWS services. Tested performance and scalability.
- Designed and implemented test infrastructure and automation framework for network and cloud features using Python, Spirent, IXIA. Managed automation code.
- Tested Kubernetes and BGP on Google Cloud Platform (GCP).
- Built ML pipelines using AWS DevOps tools and services to create automated ML models CI/CD pipeline to prepare data, build docker images, train, test, package, and deploy ML models. Collected and prepared model data.
- Built and maintained CI/CD pipeline using DevOps tools on AWS: Git, Jenkins, Ansible, Docker, Maven, Terraform, and Kubernetes.

### QA Lead @ Amazon Lab126
Jan 2020 – Jan 2022
- Worked on various Amazon products and services from early development to launch. 
- Developed test strategy and test plan, collaborated with internal/external teams to define test scope/milestones/deliverables, led project calls, scrubbed bugs, identified KPI and created metrics. 
- Provisioned and managed cloud infrastructure using Terraform. Set up cloud environment and tested various cloud services using Boto3/Pytest. Deployed, performance tested, and managed applications/resources using AWS services, Kubernetes. 
- ML model testing: evaluated ML model performance, identified and addressed model drift, debugged production models, identified and addressed ML bias issues. From initial data mining to final deployment.
- Led and hands-on tested web services/applications/Wi-Fi/Bluetooth/robotics/networking. Client-server testing. 
- Built Python automation framework. Tested APIs and RESTful web services including HTTP, JSON, REST API, Selenium. Frontend UI and backend testing. 
- Participated in product design review.

### Staff Network QA Engineer @ Extreme Networks
Jan 2014 – Jan 2020 | San Jose, CA
- Performed end-to-end testing of enterprise-class wireless network products including routers, access points, switches. Reviewed product specs, developed test plans, and executed testing.
- In-depth experience on system-level and protocol-level test including various wireless network standards,
protocols, and services: 802.11ax/ac, QoS, performance, EAP, 802.1X, NAT, VPN, Radius Server.
- Troubleshot and debugged customer issues using debug tools and sniffers: IXIA, Spirent, Veriwave, Ominipeek, Wireshark, etc. Analyzed packet captures.
- Automated test using Python and Robot Framework in Lunix. AWS Cloud Practitioner.

### Staff Test Engineer @ Motorola Solutions
Jan 2010 – Jan 2014 | San Jose, CA
- Designed and built test infrastructure to test wireless/network products. Developed test strategy and plan,
executed test. Worked on WLAN/routing/VPN/VoIP/QoS/Radio Frequency/RF regulatory.
- Outdoor RF/firewall/security/RADIUS/NAT/wireless planning and monitoring/ wireless protocols.
- Automated testing using TCL/Perl. Led product releases.
- Worked with marketing/engineering/product management to provide competitive solutions.

### Software QA Engineer @ SYMBOL TECHNOLOGIES, INC.
Jan 2007 – Jan 2010 | San Jose, California, United States
- Tested network and wireless routers/switches/APs on protocol/system level.
- Performed network protocols, TCP, UDP, IP, routing, authentication & encryption, 802.11 a/b/g, VPN,
performance, VLAN, SNMP, and QoS testing.
- Wireless network management (planning & monitoring) product test.
- Interacted with customers on technical issues. Provided demo, presentation and on-site support.


## Education
### Master of Science - MS in Electrical, Electronics and Communications Engineering
Santa Clara University

### Bachelor of Science - BS in Electrical Engineering, Communication Engineering
Shanghai Jiao Tong University


## Contact & Social
- LinkedIn: https://linkedin.com/in/sean-han-280b2218

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Source: https://flows.cv/seanhan
JSON Resume: https://flows.cv/seanhan/resume.json
Last updated: 2026-04-12