Wenkai Tan
Moorefield Station,VA
Summary
Results-driven Senior Full-Stack Software Engineer with 3+ years of experience developing scalable web applications and cloud-native financial systems. Specializes in React and Vue3 for frontend development and Node.js for API orchestration. Expertise in Backend-for-Frontend patterns and AI-driven tools that enhance system reliability and UI performance. AWS Certified Solutions Architect with a proven ability to transform legacy architectures into scalable platforms.
Overview
4
4
years of professional experience
2
2
Certifications
Work History
Senior Software Engineer
Capital One
McLean, Virginia
01.2026 - Current
- Architected high-concurrency orchestration layer in Golang/AWS Lambda to centralize shared business logic, reducing redundant API integration efforts across multiple web applications.
- Pioneered use of Windsurf and GitHub Copilot to standardize unit test generation and legacy refactoring, increasing team deployment velocity and establishing new 'AI-first' engineering standards.
- Spearheaded migration to Pinia and modernized internal agent platforms; established reusable component patterns to enhance web accessibility (A11Y) and performance across enterprise.
- Technical Governance: Leading cross-functional design reviews to ensure architectural alignment between frontend micro-services and backend cloud patterns.
Software Engineer
Capital One
McLean, Virginia
02.2024 - 01.2026
- Implemented BFF (Backend-for-Frontend) patterns using Fastify and migrated legacy endpoints to GraphQL, simplifying client-side architecture and improving payload latency.
- Migrated services from ECS EC2 to ECS Fargate, cutting developer vulnerability management overhead by 80%.
- Developed Python/Databricks automation for financial data synchronization, achieving 99.9% data consistency for downstream analytics platforms.
Associate Software Engineer
Capital One
McLean, Virginia
02.2023 - 02.2024
- Migrated mission-critical services from ECS to AWS Lambda, enabling significant scaling flexibility.
- Upgraded backend services from Java 8 to Java 17 (Spring Boot 3), improving security and system performance.
- Developed automated Python/Apache Airflow data pipeline for account restrictions, reducing fraud-related losses by $40K daily.
Software Engineer Intern
Capital One
New York, New York
06.2022 - 08.2022
- Developed Web3 Proof of Concept (POC) using POAP, enhancing customer engagement at American Express events.
- Engineered automated issuance system for unique Web3 digital collectibles, enabling distribution to crypto wallets upon check-in.
Education
Bachelor of Science - Computer Science
Lehman College
Bronx, NY12-2022
Skills
Programming Languages: Go, Python, Java, JavaScript (ES6), SQL
Frameworks: Fastify, Spring Boot (2/3), Express, Flask, Nextjs
Cloud & Data: AWS (Lambda, ECS, Fargate), Databricks, Apache Airflow, Apache Spark, PostgreSQL, GraphQL
Tools: CI/CD (Jenkins), Git/GitHub, React, Vue3, Redux, Pinia/Vuex, Windsurf, Github Copilot,
can you add CDK as well
Certification
AWS Certified AI Practitioner
Timeline
Senior Software Engineer
Capital One
01.2026 - Current
Software Engineer
Capital One
02.2024 - 01.2026
Associate Software Engineer
Capital One
02.2023 - 02.2024
Software Engineer Intern
Capital One
06.2022 - 08.2022
Bachelor of Science - Computer Science
Lehman College