# Kevin Chang

> Staff Software Engineer at Walmart Global Tech

Location: San Jose, California, United States
Profile: https://flows.cv/kevinchang5

Dynamic Staff Software Engineer with a proven track record at Walmart Global Tech, excelling in technical leadership and software design. Expert in Java programming and Agile project management, consistently driving impactful results in high-stakes environments.

## Work Experience
### Staff Software Engineer @ Walmart Global Tech
Jan 2022 – Present | Sunnyvale, California, United States
• Leader of Catalog Product team, overseeing product setup and maintenance for Walmart's product catalog.
• Designed and implemented new product data model, achieving annual savings of $8.5 million and reducing search data extraction time by 50%.
• Developed system to incorporate attribute accuracy into content quality evaluation.
• Established audit logging for changes to eligibility and derived attributes.
• Rearchitected eligibility platform, introducing support for subscriptions.
• Redesigned Marketplace seller onboarding process, facilitating swift import of item catalogs for third-party sellers.
• Implemented feature to prevent setup and sale of prohibited items.

### Senior Staff Software Engineer @ Cepheid
Jan 2021 – Jan 2022 | Sunnyvale, California, United States
• Developed GeneXpert Xpertise 7.0 software for high-throughput GeneXpert Infinity instruments.
• Led design and execution of database migration.

### Staff Software Engineer @ Cepheid
Jan 2020 – Jan 2021 | Sunnyvale, California, United States
• Designed and developed GeneXpert Xpertise 7.0 software, leading database migration and ensuring cloud compatibility with C360 platform.
• Led development of GeneXpert Xpress 6.4 software, integrating crucial security features for the CLIA-waived platform.
• Enhanced Optical Calibration software to accommodate new assays.
• Served as Certified Scrum Master for Agile team on GeneXpert Xpress 6.2 and Cepheid Connectivity Solution 1.0 projects.
• Developed Cepheid Connectivity Solution, facilitating bidirectional communication between GeneXpert applications and data managers.
• Created key features in GeneXpert Xpress 6.2 software, including efficient test result upload.

### Senior Software Engineer @ Cepheid
Jan 2015 – Jan 2020 | Sunnyvale, California
• Led Agile team as Scrum Master for GeneXpert Xpress 6.0 and 6.2 software.
• Designed Nexus software engine to unify code bases across current and future GeneXpert diagnostic instruments.
• Redesigned GeneXpert Xpress 6.0 interface, incorporating key features like Quality Control lockout.
• Updated ONCore oncology software for compatibility with various database versions.
• Created database views for C360 Sync analytics software to enable seamless querying of diverse databases.
• Directed development of import and export functionalities for assays, tests, cartridges, and graphs.
• Revamped SQL database for GeneXpert applications and executed DB migration with automated equivalence testing.
• Mentored interns and provided guidance on project work.

### Software Engineer III @ Fujitsu Network Communications
Jan 2009 – Jan 2015 | Sunnyvale, California
• Achieved FNC’s Quarterly Award for designing and developing Wavelength Defragmentation software, optimizing network throughput.
• Engineered Service Performance Management (SPM) software to improve operational efficiency.
• Developed features for NETSMART 2000 Network Development and Planning Tool, including flexible grid wavelength allocation and manual traffic routing capabilities.

### Software Engineer II @ Fujitsu Network Communications
Jan 2006 – Jan 2009 | Sunnyvale, CA
• Achieved FNC’s Gold Level President’s Award by doubling frequencies in NETSMART 2000 and securing Verizon contract valued over $500 million.
• Designed and developed critical features for NETSMART 1500 Network Management System, including context-driven Performance Management View and optical power graphs.

### Software Engineering Contractor @ Fujitsu Network Communications
Jan 2005 – Jan 2006 | Sunnyvale, CA
• Enhanced Performance Management modeling support for new network elements within NETSMART 1500.


## Education
### Bachelor of Science (B.S.) in Computer Engineering
UC San Diego


## Contact & Social
- LinkedIn: https://linkedin.com/in/kevintchang

---
Source: https://flows.cv/kevinchang5
JSON Resume: https://flows.cv/kevinchang5/resume.json
Last updated: 2026-04-12