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Jing Sheng HuangJS

Jing Sheng Huang

Software Engineer - Front-End / Full-Stack

€400/day
Lyon, FR
8-15 years

Average response time: 1 hour

About Jing Sheng

Full-stack software engineer with 7+ years building multi-tenant environmental compliance SaaS. Experience spanning frontend,
backend, GIS, data visualization, performance optimization, CI/CD, and AI-assisted infrastructure serving 100+ municipal clients.
  • Chinese

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • 2NDNATURE
    Software Engineer - Front-End / Full-Stack
    March 2018 - Today (8 years and 3 months)
    Santa Cruz, CA, USA
    Built team-wide AI development infrastructure around Claude Code — codebase context docs, custom workflow commands, specialized agents (code review, testing, refactoring), linting hooks, and MCP integrations to the database, Jira, and Sentry — reducing multi-step workflows from 30–60 minutes to single commands. Architected a React/TypeScript dashboard framework with Tailwind CSS, Recharts, and shadcn/ui, replacing legacy jQuery/D3 dashboards — reducing code per dashboard by 75% and cutting delivery of new analytics views from days to hours. Evolved the analytics backend through three architectures — ORM queries, pre-cached background jobs, and AI-assisted on-the-fly SQL — achieving sub-second responses with always-live data. Engineered a GIS mapping system rendering 10,000+ geospatial features with Leaflet, client-side clustering, automatic vector-to-raster fallback at high density, and PostGIS spatial caching for sub-second interactions at any scale. Created 24+ PostgreSQL views to eliminate N+1 queries and reduce API response times; refactored data providers into an abstract class hierarchy, cutting hundreds of lines of duplicate code. Designed a self-service custom map layer system letting clients integrate ArcGIS services without code changes, supporting server-rendered tile layers and client-side vector features with automatic style extraction from ESRI metadata. Developed a full-stack bulk import pipeline supporting 18 asset types via CSV and ArcGIS feature services, with a two-phase validate-then-import workflow returning per-cell error severity in a sparse matrix for real-time preview feedback. Owned the compliance reporting module — interactive maps, snapshot preservation, KPI aggregation, and report locking for audit-proof regulatory submissions. Established a config-driven architecture with 15 frontend config modules (300+ entries) and 83 backend domain enums, so new features require configuration rather than custom code.
  • CompAndSave.com, Inc.
    Front-End Web Developer Intern
    October 2017 - January 2018 (3 months)
    Newark, CA, USA
    Created 30+ responsive landing pages for 3 e-commerce websites using Magento and Volusion. Collaborated with UI/UX designers to deliver pixel-perfect, cross-browser-compatible layouts with SEO optimization.
  • Project Hub, SJSU Freelance Team
    Front-End Engineer Intern
    October 2016 - October 2017 (1 year)
    San Jose, CA, USA
    Built client-facing website UIs and reduced page load time by 20% through asset optimization and HTTP request minimization.

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Education

  • M.Sc.
    San Jose State University
    2016
    M.Sc. Software Engineering
  • B.Sc.
    University of California
    2011
    B.Sc. Mechanical Engineering

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