Juncen Wang

Mid-level software engineer

Denver, Colorado, United States

About

Experience

  • Backend Engineer at Spotify
    Jun 2026 - Present · 2 mos

  • Lead Data Architect at OIL & GAS ACTION NETWORK
    Feb 2026 - Jun 2026 · 5 mos

    Architected a 20-table relational data system in Airtable from scratch, defining schemas, relationships, and field types to replace an undocumented legacy CRM for a climate advocacy organization Built 6 custom React extensions integrated into Airtable's UI, cutting manual steps from core staff workflows Migrated 15,000+ contacts from a legacy system using Python, including deduplication, field normalization, schema transformation, and multi-source joins to produce a clean, production-ready dataset

  • Amazon (5 yrs 2 mos)
    • SDE II
      May 2022 - Aug 2025 · 3 yrs 4 mos

      Designed, implemented, and maintained several pieces of software, working with multiple partner and away teams. Projects included frontend customer-facing interfaces, backend data ingestion and business logic, and networking and connectivity configurations in AWS. Worked with low-latency requirements and tight migration deadlines.

    • SDE I
      Jul 2020 - Sep 2022 · 2 yrs 3 mos

  • SDE Intern at Amazon
    Jun 2019 - Sep 2019 · 4 mos

    Designed and built an internal website with React.js and AWS Lambda. Learned a new programming language on the job within two weeks. Gathered requirements and worked closely with stakeholders. Worked with internal packages and tools built by other teams. Worked with many APIs for several different databases.

  • Data Science Intern at Overstock.com
    Jun 2017 - Sep 2017 · 4 mos

    Developed and implemented algorithm to parse search terms in Python. Worked with data sets of sizes up to millions of strings. Worked with pulling data from and changing settings on Google Adwords. Deployed apps on cloud computing platforms. Worked in the agile development paradigm on a small team, every step from planning to deployment.