Hi, I'm Marcus Leung

Nov 2025Sikka.ai - DevOps EngineerPresent

• - Designed and developed an AI-powered customer support system using Retrieval-Augmented Generation (RAG) over historical support tickets and internal documentation to draft contextual email responses and streamline support workflows
• - Engineered an AI-driven sales intelligence pipeline integrating Apollo, Tavily, Gemini, and HubSpot to automate lead enrichment, personalized outreach generation, and sales campaign enrollment
• - Containerized, deployed, and maintained internal applications on Kubernetes using Docker, Amazon ECR, ArgoCD, and GitHub Actions while implementing GitOps deployment workflows

Jun 2025Sikka.ai - HubSpot Integration Intern5 mos

• - Implemented serverless Python data pipelines on AWS Lambda to sync customer usage and product records between production MSSQL/MySQL databases and HubSpot CRM, ensuring real-time data consistency
• - Developed custom front-end UI extensions using HubSpot’s UI Extension SDK, creating embedded data visualizations and interactive dashboards to streamline internal user workflows
• - Architected custom CRM data schemas and object associations, designing property mappings and event-driven workflows to prevent data redundancy and maintain relational integrity across systems

Jun 2024Sikka.ai - Business Development Intern5 mos

• - Conducted B2B product demonstrations to prospective clients, highlighting API functionality and integration capabilities, resulting in a 15% increase in demo-to-deal conversion
• - Generated and qualified over 2,500 leads through targeted outreach, A/B testing, and strategic prospecting, contributing to a 20% growth in the sales pipeline
• - Collaborated with marketing, legal, and development teams to refine outreach strategies, negotiate contracts, and address integration needs, improving operational efficiency in the sales process

Apr 2021Phorena - Engineering Intern (Unpaid)8 mos

• - Crafted customized demonstration and test scripts, tailored to assess the functionalities of sensors and LED lights, while implementing and utilizing various Arduino libraries
• - Created a 3D environment from a floor plan image using Sketchup, serving as a VR environment for product rendering
• - Recorded and presented an LED color demo for ASME event at UC Irvine

Apr 2024UCSC Computer Networking Student Association - Vice President1 yr

• - Led and managed a team of 8 officers, overseeing strategic planning and ensuring smooth club operations
• - Directed the coordination and execution of diverse activities such as labs, guest speaker sessions, and special projects
• - Hosted and facilitated informative and interactive weekly meetings
• - Boosted the club's online presence through strategic promotion on Instagram, LinkedIn, and Discord

Jun 2023Slug Fund Investment Group - Web Developer | Officer of External Affairs1 yr

• - Independently developed and deployed the entire club's website using React.js and Bootstrap
• - Accumulated more than 500 unique visitors and logged over 3,200 event counts to date
• - Managed and oversaw social media accounts on platforms like Instagram, Twitter/X, LinkedIn, and Discord, actively driving increased engagement and fostering community growth