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Zane J.
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Zane J.

Expert Software Developer | Full Stack | Agentic AI | LLM | Security

🇺🇸 USA BASED 👨🏽‍💻 I build high quality full stack apps, AI powered platforms, mobile apps, automations, and custom integrations. I have delivered 100+ production builds across SaaS, mobile, healthcare, marketing tech, internal tools, and AI driven workflows. My background covers everything from scalable backend systems to clean, modern frontend design. I work fast, communicate clearly, and handle complex technical problems without drama. Clients come to me when they want something built the right way, whether it is a full product, an MVP, or a deep integration between tools. I build with React, Next.js, Node.js, Python, Go, Swift, Firebase, Postgres, AWS, GCP, Kubernetes, Terraform, and most modern stacks. I am comfortable with AI workflows, LLM integrations, vector databases, OCR, real time data pipelines, mobile apps in Swift and React Native, and full cloud deployments. If it needs to scale or connect to an API, I can build it. 💡 What you get working with me: • Clean, production ready builds • Fast turnaround and easy communication • Ability to take vague ideas and turn them into real products • Deep experience across frontend, backend, cloud, and AI • Reliable delivery without missed deadlines If you need an expert who can design, build, and ship high quality software with no hand holding, let’s talk!

🇺🇸Menlo Park, United States$90/hr100% JSS4.91 (19)Since Apr 2025

Earnings and projects

MRR
$24k

Last 6 months ÷ 6

World#127 / 412k
🇺🇸Country#76 / 62.1k
Revenue, last 30 days
$26k

Last 6 months: $141k

World#131 / 412k
🇺🇸Country#73 / 62.1k
Total earnings
$181k

Billed in all: $190k

World#17,930 / 412k
🇺🇸Country#4,204 / 62.1k
Per project
$3.8k

$5.4k in the last 6 months

World#45,552 / 412k
🇺🇸Country#7,599 / 62.1k
Projects, last 6 months
26

Across 27 contracts

41% fixed59% hourly
World#3,756 / 412k
🇺🇸Country#663 / 62.1k
Projects in all
48

Across 53 contracts

30% fixed70% hourly
World#63,651 / 412k
🇺🇸Country#9,676 / 62.1k

Earnings, last 30 days

$190k+$25.9k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$160k$180k$200kOct 8Oct 23Nov 7

Skill rankings: #1 in 1 skill of 15

Rarest: top 0.04% in JavaScript, of 41,428. Ranked by MRR among everyone on Upwork with the skill.

  1. 1Bubble.io749 freelancers · 🇺🇸 #1Top 0.13%
  2. 2CRM Development2,819 freelancers · 🇺🇸 #2Top 0.07%
  3. 2App Development2,592 freelancers · 🇺🇸 #2Top 0.08%
  4. #8Flutter7,550 freelancers · 🇺🇸 #2Top 0.11%
  5. #8AI Consulting2,321 freelancers · 🇺🇸 #4Top 0.34%
  6. #9AI App Development4,708 freelancers · 🇺🇸 #6Top 0.19%
  7. #12Next.js15,954 freelancers · 🇺🇸 #6Top 0.08%
  8. #13AI Agent Development11,048 freelancers · 🇺🇸 #7Top 0.12%