Lee Zhen Yang, Sebastian

A driven and versatile professional with a strong background in business and software development. Proven ability to quickly adapt and learn new skills, coupled with a passion for solving complex problems. Adept at translating user requirements into technical specifications and delivering high-quality solutions. Thrives under pressure while maintaining a professional demeanor. Possesses a diverse skill set and hands-on experience across various domains.

Work Experience

Amazon, Senior software engineer, USA, Seattle, Jun 2024 - Present

  1. Successfully led the development and implementation of Investment Management System (IMS), overseeing $12B+ in Amazon’s portfolio comprising 500+ warrant and investment positions
  2. Directed the integration with the Accounting system, bridging the data requirements gap between Accounting and Finance, resulting in a 100% improvement in data reliability.

AWS, Senior startup solutions architect, Singapore, Jun 2022 - Jun 2024

  1. Spearheaded the successful delivery of 19 “Gameday Quests” to 496 unique companies across the Asia-Pacific region, achieving an average customer satisfaction (CSAT) score of 4.62/5.
  2. Orchestrated the execution of 18 “db4dev” workshops for 772 unique companies in Asia-Pacific, attaining an exceptional average CSAT score of 4.71/5.
  3. Innovated and developed “RoboChef,” a food waste reduction solution showcased at AWS re 2023 Builder’s Fair, leveraging IoT and AI to identify expiring ingredients and generate personalized recipes.
  4. Led a cross-functional team of 5 Solutions Architects in designing and deploying an IoT demonstration for AWS Summit across Asia, illustrating practical integration of cloud technologies into daily life.
  5. Mentored 3 Solutions Architects, fostering skill development and career progression, resulting in their promotion to higher-level roles.

AWS, Startup Solutions architect, Singapore, Sept 2020 - May 2022

  1. Spearheaded cost-optimization initiatives for Singapore-based startup clients across diverse segments, driving an average cost reduction of 30% through strategic resource allocation and AWS best practices.
  2. Designed and executed over 42 scalable technical workshops and events tailored to 5 ASEAN markets (SG, MY, ID, PH, TH) and 4 customer segments (HCLS, FinTech, Greenfield, Engaged), achieving a 4.2/5 average customer satisfaction rating.
  3. Authored 6 reusable technical assets (blogs, code samples, videos, e-books) to empower over 4,000 users in optimizing cloud infrastructure and adoption.
  4. Delivered architectural guidance and AWS best practices to 200+ startups, enabling secure, scalable, and cost-efficient deployment of mission-critical workloads.

Amazon, Software Engineer II, USA, Sunnyvale, May 18 - Sept 2020

  1. Spearheaded the planning and development of a comprehensive testing framework for Alexa Shopping Notification domain, removing a 4 month critical roadblock which prevented production releases
  2. Demonstrated strong leadership and collaboration skills by coordinating efforts across multiple teams to identify and resolve a critical issue affecting 5% of Alexa notification traffic, enhancing the overall user experience.
  3. Designed and built a cutting-edge Command Line Interface (CLI) tool for Natural Language Understanding (NLU) developers, significantly improving their work efficiency by 50%, resulting in increased productivity and faster time-to-market.

ShopBack, Software Engineer, Singapore, July 15 – May 18

  1. Led the planning and development of core features for Shopback, resulting in expansion to 7 countries
  2. Implemented e2e and unit testing, resulting in a 80% reduction in bugs reported, demonstrating a strong attention to detail and commitment to quality.
  3. Researched and rolled out solutions to improve web performance, resulting in a decrease of more than 5 seconds, showcasing the ability to analyze and optimize complex systems.

Afteryou, Software Engineer, Singapore, May 14 – July 15

  1. Developed Jarvis, a mobile application that streamlined housing agents’ workflow, saving them an average of 8 hours per week.
  2. Implemented continuous development tools that accelerated the development lifecycle by 30%.
  3. Enabled operations to streamline 50% of reporting processes through Jarvis.

CSIT, System Analyst, Singapore, July 13 – May 14

  1. Designed and implemented web service architecture on existing applications to improve interoperability and security.
  2. Led the development of a web application focused on displaying and consolidating vital information for analysis.
  3. Setup offline common repositories (Git and Maven) to improve collaboration and foster better teamwork between developers.

Rocketfuel Inc, Software Engineer (internship), USA, Jan 11 – Dec 11

  1. Conceptualized and developed user-friendly features based on business requirements, increasing employee productivity by 30%
  2. Collaborated with end-users to design and improve overall system usability, resulting in an average of 3 fewer clicks per transaction, enhancing efficiency
  3. Spearheaded and delivered a revenue forecasting feature with 95% reliability, providing enhanced visibility of the company’s financial position

Education

National University of Singapore, Dec 13 – Dec 15

  1. Master of Computing (Major in Information System)
  2. CAP: 3.70/5

National University of Singapore, Aug 09 – July 13

  1. Bachelor of Computing (Major in Information System, Minor in Technopreneurship and Specialization in Service Science Management and Engineering)
  2. CAP: 4.11/5, 2nd Upper Class Honors

Stanford University, NUS Overseas Colleges, Jan 11 – Dec 11

  1. Gained insights and actively participated in project meetings and networking sessions with entrepreneurs and business leaders
  2. Notable subjects: New Venture Creation, Global Entrepreneurial Marketing and Start-up business case

Projects

Workshops

  1. Database for developer
  2. EKS workshop for startup

Technical contents

  1. ECS autoscaling with custom metrics - code
  2. ECS autoscaling with custom metrics - blog
  3. How to move an application from Heroku to Elastic Beanstalk - video
  4. Monitoring memory usage in Amazon Lightsail instance - blog
  5. A startup guide to AWS - ebook

Personal Projects

  1. React-Sticky-Timer - A simple sticky timer for counting down
  2. Superagent-Debugger - An easy to use debugger for superagent
  3. Webpagetest-Keen - Web performance monitoring tool using webpagetest and keen
  4. Basic of CSS - A dictionary of commonly use techniques for centering and more

Shopback Web Applications - A smarter way to shop

  1. Shopback
  2. GalaxyLife Shopback (White Label)

Jarvis Mobile Application - A one-stop shop solution for housing agents

  1. Google Play Store
  2. Apple App Store

Proficiency

Technical Skills:

Level Technology
Advance React/Redux, CodeIgniter(PHP), Javascript, Express(nodejs)
Intermediate Ruby on Rails, Python (Web scraping), Laravel(PHP), Java
Database MySql, MongoDB
Tools usage Gulp, Webpack, Babel, Git