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David B.

David B.

Web Developer | Frontend, Full-Stack, WordPress, WooCommerce

Turn your stalled SaaS MVP or AI product into a production-ready, high-performing web application. I rescue broken "vibe code" and engineer scalable full-stack solutions that your users will love. Are you struggling with a buggy frontend, a slow SaaS application, or AI-generated code that just won't scale? Building a reliable, enterprise-grade web app requires more than just knowing syntax—it requires architectural foresight and deep technical expertise. With over 16 years of experience engineering platforms for industry giants like Apple and BlackRock, as well as fast-moving AI and cloud startups, I provide the technical backbone your project needs to succeed. Why partner with me? • Zero Hand-Holding: Tell me your business goal, and I’ll translate it into secure, optimized, and production-ready code. • AI & SaaS Specialization: From integrating virtual try-ons and machine learning prompts to complex Stripe billing and Kubernetes platforms, I build for modern tech stacks. • Vibe Code Rescue: If you used AI tools (like Copilot or Cursor) to generate your app and hit a wall, I can audit, refactor, and finalize it into a robust, deployable product. • Production-Ready Delivery: I don’t just write code. I establish seamless CI/CD pipelines (GCP, GitHub Actions) and enforce rigorous testing so your application won't break as your user base grows. I bring a balance of deep technical expertise, rapid problem-solving, and transparent communication to every project. Your software is an investment, and I ensure it yields a maximum return through speed, stability, and premium user experiences. Specialties & Tools: Full-Stack JavaScript, TypeScript, React.js, Svelte, SvelteKit, Next.js, Node.js, Express.js, Google Cloud Platform (GCP), Stripe API Integration, GraphQL, Tailwind CSS, CI/CD Pipelines, GitHub Actions, PostgreSQL, MongoDB. Send me a quick message with your project details, and let's see if we're a fit to scale your application.

🇵🇾Asuncion, Paraguay$20/hr100% JSS5.00 (8)Since Jul 2017

Earnings and projects

MRR
$36

Last 6 months ÷ 6

World#156,644 / 412k
🇵🇾Country#61 / 133
Revenue, last 30 days
$47

Last 6 months: $217

World#99,282 / 412k
🇵🇾Country#41 / 133
Total earnings
$5.9k

Billed in all: $6.3k

World#241,003 / 412k
🇵🇾Country#80 / 133
Per project
$588

$217 in the last 6 months

World#168,013 / 412k
🇵🇾Country#67 / 133
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇵🇾Country#44 / 133
Projects in all
10

Across 11 contracts

55% fixed45% hourly
World#201,797 / 412k
🇵🇾Country#52 / 133

Earnings, last 30 days

$6.3k+$47 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$6,200$6,225$6,250$6,275Oct 8Oct 23Nov 7

Skill rankings: Top 23% in Redux

Ranked by MRR among everyone on Upwork with the skill.

  1. #144Svelte451 freelancers · 🇵🇾 #1Top 32%
  2. #735Redux3,245 freelancers · 🇵🇾 #3Top 23%
  3. #880Google Cloud Platform2,939 freelancers · 🇵🇾 #2Top 30%
  4. #958GraphQL3,403 freelancers · 🇵🇾 #1Top 28%
  5. #1,516Stripe3,151 freelancers · 🇵🇾 #1Top 48%
  6. #2,268Tailwind CSS6,978 freelancers · 🇵🇾 #2Top 33%
  7. #3,078Front-End Development8,892 freelancers · 🇵🇾 #2Top 35%
  8. #4,405Full-Stack Development9,452 freelancers · 🇵🇾 #3Top 47%