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Sullivan Xiong
Sullivan Xiong

Hey, I'm Sullivan

Sacramento, CA

I'm a creative Software Engineer looking to break into the Blockchain Space.

I specialize in Systems Architecture and Fullstack Development.

I'm passionate about doing Life-long meaningful work.

NOW WORKING ON · FROM MY PUBLIC TO-DO LISTLeetCodeLeetCoding practice in TypeScriptHelp me decide what's nextWORD OF THE DAYephemeraladj.Lasting for a very short time. Ephemeral machines, ephemeral keys.

WHAT I BUILD WITH

  1. Oct 2025 – Present

    Upside · Member of Technical Staff

    San Francisco, CA · On-site

    • Responsibilities for this role emphasizes a broader skillset rather than a specific role. Involves hands-on work such as research, design, development, testing, managing infrastructure, and evaluating+improving existing engineering processes.
    • Upside is revenue intelligence for B2B companies. Our platform helps teams that sell big-ticket items to other businesses figure out what influenced each deal, across marketing, sales, partnerships, customer success and so on, and what they should do next to make sure they win it as efficiently as possible.

  2. Aug 2022 – Oct 2024

    LinkedIn · Site Reliability Engineer

    Growth SRE Team · Chaos and Mitigation Team

    • Developed and deployed 9 features and 2 microservices, improving metrics transparency, triaging capabilities, and significantly reducing time-til-mitigation.
    • Resolved over 200 incidents across multiple on-call rotations, ensuring system reliability as well as minimizing downtime for end-users.
    • Spearheaded a department-wide initiative to decommission and recycle 261 servers, resulting in a 29% reduction in infrastructure costs and significant resource optimization.
    • Led the adoption of new observability tools, enabling seamless integration of product metrics for all engineering teams, resulting in a 24% reduction in initial product deployment time.

  3. Jun 2021 – Sep 2021

    LinkedIn · Site Reliability Engineer Intern

    Growth SRE Team

    • Designed a full-stack architecture for an application monitoring tool.
    • Wrote automation scripts that executes via scheduler.
    • Refactored existing code base with improved runtime by 20%.
  4. Chevron

    Jun 2020 – Sep 2020

    Chevron · Cloud Engineer Intern

    Cloud Infrastructures · Ansible Team

    • Maintained Chevron's HyperFlex Infrastructure Data Centers using virtualization management tools such as UCSM, HC, and vCenter.
    • Configured Ansible Playbooks for Automation of Server Applications.
    • Implemented Hybrid Cloud Infrastructure utilizing Azure and internal servers.
  5. Cal Poly

    Mar 2020 – Jun 2021

    Cal Poly SLO · Teaching Assistant

    CPE101 – CPE202

    • Provided support to students in CPE101 and CPE202 courses with additional tutoring outside of class hours.
    • Assisted in teaching data structures students.
    • Designed a website that simulated and visualized Python Assignments, but in Javascript.
    • Reviewed student code and assignments.
  6. Cal Poly

    Sep 2019 – Mar 2020

    Cal Poly SLO · Jr. Linux System Admin

    Computer Science Department Server Management Team

    • Maintained Cal Poly SLO's CS Department servers physically, and remotely through terminal access.
    • Developed PXE-Boot server from scratch as a Docker Image for easy deployment and configuration.
    • Operated software across different OS's such as Unix, Linux, Windows, and Mac.