# Viktor Han

> Staff Software Engineer

Location: Santa Clara, California, United States
Profile: https://flows.cv/viktorhan

A results-driven, articulate, analytical and aspiring Software Engineer with a diverse knowledge across different aspects of Computer Science and Mathematics. Strong in design and integration problem-solving skills.

Always want to stay in a challenging technical track career.

Experienced in:
• Java, Javascript, Python, React.js, Docker, Git. 
• Engineering cloud based web application development, all layers, from database to services to user interfaces
• Perform well in a team environment as well as individual with good written and oral communication skills.
• Agile practices and Scrum development
• Familiar with Orable DB, Postgres, MsSql, Mysql

## Work Experience
### Staff Software Engineer - Compliance Engineering at eBay @ eBay
Jan 2023 – Present | San Jose, California, United States
As as a senior leader on the KYC(Know Your Customer) team, I am responsible for designing and implementing multiple applications and APIs to ensure smooth experience for eBay user compliance experience

### Senior Software Engineer @ Walmart Labs
Jan 2019 – Jan 2022 | United States
Backend Engineer in the SIMS (Smart Inventory Management System) Replenishment team at Walmart Labs. SIMS is an ​inventory management system that enables planners to efficiently plan, forecast, replenish and allocate inventory to meet customer demand for Walmart.com. 

· Design and build the daily ETL pipeline on top of Apache Airflow wit Rabbit MQ with distributed infrastructure
· Migrated database from private cloud to public cloud to adopt GCP and Microsoft Azure
· Migrate existing application to WCNP, an internal platform utilizing Docker / Kubernetes to manage and deploy applications
· New microservices and enhancements for existing applications that interact with other Walmart internal services and ETL developments.
· Design and implement new efficient ETL pipelines and workflows in Airflow. 
· Ensure systems are performant, scalable and fault tolerant.
· Collaborate with the product to get new product requirements mapped to engineering tasks.
·  Ensuring code quality through reviews and mentoring junior engineers.

### Member Of Technical Staff @ Oracle
Jan 2017 – Jan 2019 | Redwood City, US
Oracle Cloud Infrastructure team
• Rewrite Oracle Cloud Marketplace UI with React.js to integrate with the new terraform work flow as well improve the page loading performance by 30%
• Developing new features for OCI partners to publish listing meeting with new OCI standards
• Refactor legacy API with Jersey framework
• Monitoring sever status with Dockerized python scripts to meet the SLA requirements

### Software Developer @ Veeva Systems
Jan 2015 – Jan 2017 | United States
Software developer working on the Veeva Vault platform. Veeva Vault is a leading cloud based content management platform focusing on life sciences and pharmaceutical industries.

Contributing various complexity features for customers as a key role developer on app infrastructure team of Veeva Vault Platform

• Work with multiple cross-functional teams to build comprehensive and high quality products
• Design and implement the framework for various audits pdf export
• Refactor legacy code to make it developer friendly and easily testable. 
• Help customers with production issues and improve the quality of product
• Extend exiting ftp uploading functionality to support large size file uploading and processing
• Developing and maintaining Vault API

### Teaching Assistant @ Santa Clara University
Jan 2014 – Jan 2015 | Santa Clara, CA

### Math Grader @ UCLA
Jan 2011 – Jan 2013

### Math Tutor @ Diablo Valley College
Jan 2009 – Jan 2010


## Education
### Bachelor of Science (BS) in Pure Mathematics
UCLA

### Master of Science (MS) in Computer Science Engineering
Santa Clara University


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

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