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Zak F.
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Zak F.

Full-Stack Developer | SaaS, Chrome Extensions & APIs

I build custom SaaS platforms, web applications, Chrome extensions and business tools for clients who need something more flexible than a template or off-the-shelf system. With 7+ years of hands-on development experience, I work across full-stack development, APIs, databases, dashboards, automation and browser extensions. I have built products for eCommerce, sports, marketplaces, property, finance and other data-driven industries. Alongside client work, I have also built and operated my own SaaS products, so I approach projects from both a technical and product perspective. I care about how the system works in production, how easy it is to maintain, and whether it actually solves the business problem. What I specialise in: • Full-stack SaaS development • Next.js, React, TypeScript and Node.js • Supabase, PostgreSQL, authentication and database design • Admin dashboards and internal business tools • API integrations, Stripe, webhooks and third-party services • Chrome and browser extensions using Manifest V3 • Automation, scraping, parsing and data-processing systems • Custom websites and web design • Responsive, mobile-friendly interfaces • Existing product improvements, debugging and rebuilds I can work with you from an early idea through to a production-ready application, or step into an existing project that needs fixing, improving or expanding. Some of my work includes SaaS platforms, Chrome extensions, multi-user dashboards, subscription products, marketplace monitoring tools and mobile-connected applications. If you need a developer who can handle both the frontend and backend, understand the product as a whole, and take ownership of the technical side, feel free to get in touch.

🇬🇧Carmarthen, United Kingdom$30/hr100% JSS5.00 (5)Since Jul 2023

Earnings and projects

MRR
$302

Last 6 months ÷ 6

World#98,064 / 412k
🇬🇧Country#1,940 / 10.7k
Revenue, last 30 days
$0

Last 6 months: $1.8k

Total earnings
$3.5k

Billed in all: $3.5k

World#284,939 / 412k
🇬🇧Country#7,161 / 10.7k
Per project
$585

$905 in the last 6 months

World#168,427 / 412k
🇬🇧Country#4,409 / 10.7k
Projects, last 6 months
2
100% fixed0% hourly
World#88,918 / 412k
🇬🇧Country#1,969 / 10.7k
Projects in all
6
100% fixed0% hourly
World#250,290 / 412k
🇬🇧Country#6,828 / 10.7k

Earnings, last 30 days

$3.5kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$3,450$3,500$3,550$3,600Oct 8Oct 23Nov 7

Skill rankings: Top 20% in CSS

Ranked by MRR among everyone on Upwork with the skill.

  1. #8Receipt Parsing21 freelancers · 🇬🇧 #1Top 38%
  2. #139Google Chrome Extension660 freelancers · 🇬🇧 #1Top 21%
  3. #357Plugin Development1,324 freelancers · 🇬🇧 #3Top 27%
  4. #870Web Scraping3,925 freelancers · 🇬🇧 #14Top 22%
  5. #1,976Google Docs8,007 freelancers · 🇬🇧 #16Top 25%
  6. #3,028Full-Stack Development9,452 freelancers · 🇬🇧 #51Top 32%
  7. #3,767CSS19,042 freelancers · 🇬🇧 #64Top 20%
  8. #3,782HTML18,716 freelancers · 🇬🇧 #66Top 20%