Gary S.
Senior Full Stack Developer | React, Node.js, SaaS, AI & Mobile Apps
Most developers build what you ask for. I help you build what your business actually needs. Whether you're launching a SaaS platform, developing a custom web application, or building a mobile app, I focus on creating software that's scalable, maintainable, and aligned with your business goals. Over the past 8+ years, I've delivered 50+ web and mobile applications across healthcare, marketplaces, logistics, fintech, business automation, and enterprise software. Most of my work falls into four buckets: marketplace/on-demand platforms, social and dating apps with real-time features, custom software built around a specific business process, and backend integrations (Twilio, Stripe) that other developers get stuck on. Technologies I work with: Flutter • React Native • React.js • Next.js • PHP (Laravel) • Python • Node.js • Firebase • AWS • MongoDB • PostgreSQL • Stripe • Twilio • OpenAI APIs 𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐫𝐞𝐡𝐢𝐫𝐞 𝐦𝐞: I scope before I code , you'll know what you're getting and roughly when, before I start. When something in the spec doesn't add up, I flag it early instead of building around it silently. And I hand off documented code, not a black box, so you're not stuck coming back to me for every small change. If you're building custom software, a marketplace, a healthcare or on-demand app, or need someone who can actually finish a Twilio or Stripe integration without three follow-up calls" 𝐥𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤 𝐚𝐛𝐨𝐮𝐭 𝐰𝐡𝐚𝐭 𝐲𝐨𝐮'𝐫𝐞 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠."
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $861
Billed in all: $259,180$259k
$861 in the last 6 months
Across 4 contracts
Across 62 contracts
Earnings, last 30 days
Skill rankings: Top 23% in Swift
Ranked by MRR among everyone on Upwork with the skill.
- #20Real Time Stream Processing62 freelancers · 🇮🇳 #5Top 32%🇮🇳#5 of 15
- #74In-App Subscription175 freelancers · 🇮🇳 #18Top 42%🇮🇳#18 of 38
- #88Custom App267 freelancers · 🇮🇳 #31Top 33%🇮🇳#31 of 105
- #140Flutter Stack470 freelancers · 🇮🇳 #44Top 30%🇮🇳#44 of 171
- #253Twilio API710 freelancers · 🇮🇳 #68Top 36%🇮🇳#68 of 225
- #271Stripe API698 freelancers · 🇮🇳 #54Top 39%🇮🇳#54 of 155
- #293Chat & Messaging Software924 freelancers · 🇮🇳 #29Top 32%🇮🇳#29 of 135
- #323In-App Purchases1,101 freelancers · 🇮🇳 #91Top 29%🇮🇳#91 of 336