I build AI-powered apps — mobile and web — that solve real business problems. Expertise in Flutter and Next.js on the front, Supabase (Postgres, Realtime, Edge Functions, RLS) on the back, and AI integration (Claude, OpenAI) throughout. I deliver production-ready apps in weeks, not months.
What I bring: real-time data sync (Supabase Realtime), full-stack delivery (Flutter/Next.js to Supabase Postgres to Edge Functions), and seamless AI integrations — LLMs, speech-to-text, image recognition, and face detection. Comfortable with Stripe payments, Firebase, and load testing at scale (50 concurrent users).
Recent work: OneMind, a real-time AI consensus platform shipped on both Flutter and Next.js (1,388+ tests); an AI calorie tracker with photo recognition; and a biometric identity system using AWS Rekognition. I currently maintain several production apps for ongoing clients.
Let's talk about your project — I respond within hours and scope accurately.
Flutter
Dart
Supabase
Firebase
FlutterFlow
AI App Development
Mobile App Development
API Integration
Python
Machine Learning
Computer Vision
Stripe
React
SQLite
Serverless Computing
Prompt Engineering
Image Analysis
TypeScript
Node.js
Alex V.
Scottsdale, Arizona
$85/hr
5.0
5 jobs
We build high-converting SaaS MVPs using Bubble.io. I run Booster Cartel, a Silver Tier Bubble Partner based in Scottsdale, AZ. We specialize in SaaS, web app, and mobile app development & design. We offer free mockups for your idea. Reach out now!
We build custom features like user dashboards, Stripe payments, quoting tools, onboarding flows, admin panels, and booking systems.
Our team works with early-stage founders, coaches, agencies, and SaaS companies to turn ideas into working products.
Projects include clean design, fast communication, and scalable systems. Most MVPs are delivered in 6-12 weeks.
We offer flexible options: hourly development, fixed-price builds, and white-label partnerships.
Tools & integrations: OpenAI, Zapier, Stripe, Airtable, SendGrid email, Twilio SMS, Firebase, Google Sheets, and virtually any publicly available API.
SaaS Development
SaaS
Web Application Development
Web Application
Bubble.io
Webflow
Mobile App Design
Mobile App Development
App Development
AI App Development
CRM Development
CMS Development
Web Development
iOS Development
Prototype
David Raymundo V.
Aurora, Colorado
$70/hr
5.0
4 jobs
I build AI-powered SaaS products for startups, and they actually ship. On time, production-ready, the kind of code you won't be paying someone to rewrite in three months. Twelve MVPs out the door so far, three of them earning revenue inside 90 days. Top Rated, 100% Job Success Score.
We're probably a fit if you've caught yourself thinking:
"We needed an MVP yesterday, but it has to be built right, not throwaway code."
"We want AI features and our last dev had no idea where to start."
"Our previous developer ghosted us, shipped spaghetti, or blew every deadline."
What I build:
- AI-powered SaaS platforms, from concept to a deployed product people pay for
- LLM features like intelligent search, chatbots, document processing, and knowledge assistants
- Custom RAG pipelines that connect your data to GPT-4, Claude, or open-source models
- AI agent systems with tool use, MCP integrations, and multi-model routing
- Full-stack web apps with clean UIs, backends that scale, and automated workflows
- API and workflow integrations: Stripe, Twilio, n8n, custom webhooks
My stack is Next.js, React, Python, FastAPI, Supabase, the Vercel AI SDK, LangGraph, and pgvector. I pick what fits your product instead of padding the list to look impressive.
Founders come back for project #2, #3, and #4 because I don't just write code. I think about the product itself: which architecture calls actually matter, where the UX tradeoffs hide, what to build now and what can wait. One client put it this way: "You're the first developer who actually understood what we were trying to build before I finished explaining it." That's what I'm aiming for every time.
I'm not your guy if you want the cheapest dev on the platform, or you need WordPress maintenance and basic landing pages, or you're still figuring out what to build. (Though if it's that last one, I'm happy to talk it through on a quick call.)
I work best with founders who move fast, say what they mean, and want a real technical partner, not someone to hand tickets to.
Send me your project details and I'll get back to you within a few hours.
Node.js
React
LLM Prompt Engineering
n8n
Tailwind CSS
TypeScript
Python
AI Agent Development
Next.js
SaaS Development
FastAPI
Supabase
API Integration
Chatbot Development
Generative AI
OpenAI API
Full-Stack Development
Automation
Machine Learning
Web Application
Shi Wen S.
Marietta, Georgia
$39/hr
5.0
5 jobs
Algorithmic trading systems architect with 25+ years of experience and execution across three distinct industries.
I spent 5 years (2002-2007) as a proprietary trader at Opus Trading Fund, a Goldman Sachs subsidiary, managing a $50M institutional portfolio under strict Wall Street risk discipline. That foundation shapes every line of code I write today.
From 2008-2018, I worked as a commercial music producer in Atlanta, earning film placements (Paul Blart: Mall Cop, multiple TV series) and publishing deals with ASCAP and BMG.
Collaborators include artists currently exceeding 1 billion aggregate streams on Spotify and Apple Music. That decade taught me how to deliver creative work to demanding clients under tight deadlines — a skill that translates directly to custom development work.
Since 2018-Present, I've co-founded Wickstrader, a 4-partner quantitative trading operation building production algorithmic systems on the Interactive Brokers JavaScript API.
January 2026 — Present
Co-Founder, CodaPro.ai LLC
Live trading automation platform that converts Pine Script V6 strategies into real broker execution via webhook. Integrates TradingView alerts directly to Tradovate (futures) and Alpaca (stocks/crypto). I lead strategy R&D — building, backtesting, and optimizing quant-grade Pine V6 strategies with honest commission, slippage, and risk controls baked in. Active on MES, MYM, MNQ, MGC, MCL and more.
WHAT I DELIVER FOR CLIENTS:
- Custom Pine Script V6 indicators and strategies for TradingView
- Expert Advisor (EA) development for MT4 and MT5 platforms
- Pine Script to MQL5/MQL4 cross-platform conversions
- Automated trading systems with webhook integration
- Backtesting, optimization, and strategy validation
- Risk management and position sizing modules
- Strategy audits, debugging, and code refactoring
My published work on TradingView under @ArisCodes includes 12+ original indicators in the Confirmed Series library, earning over 1,100 aggregate community likes in just 3 months of publishing, including Delta Volume Pressure (561 likes), Liq Sweep + CHoCH + OB Instant, and ATR Trail Supreme.
MY APPROACH:
Every deliverable goes through the same institutional-discipline framework I learned on the prop desk. All code is clean, fully commented, non-repainting (barstate.isconfirmed gated), and validated through rigorous backtesting with Calmar ratio optimization. I treat every client project as if my own capital depended on it functioning correctly.
WHAT CLIENTS CAN EXPECT:
- Fully commented, production-grade source code
- Detailed documentation walking through every component
- Backtest results where applicable
- Unlimited revision consultation during active projects
- 30-day bug-fix guarantee post-delivery
- Direct, timely communication throughout the build
I'm selective about the work I take on and focused on long-term client relationships. I'm particularly well-suited for complex projects where code quality, reliability, and institutional-grade discipline matter more than the lowest bid.
Languages: English (native)
Availability: Full-time freelance
Timezone: US Eastern (EST/EDT)
Pine Script
TradingView
Algorithms
Trading Strategy
MQL 5
MQL 4
MetaTrader 4
MetaTrader 5
Financial Software
Technical Analysis
Python
JavaScript
API Integration
Algorithm Development
Trading Automation
Sarwat S.
Allen, Texas
$25/hr
5.0
3 jobs
Hi I'm Sarwat, Founder of The Designs Planet and we have been in this industry for almost a decade now and successfully building brands world wide. Specialize services we offer below I mention but for a quick review just look at my portfolio.
Mobile App Development
Experienced mobile app developer specializing in building modern, scalable, and high-performance Android & iOS applications tailored to business, startup, and eCommerce needs. Services include custom mobile app development, UI/UX integration, API integrations, admin dashboards, real-time functionality, bug fixing, app optimization, testing, and deployment support. Focused on delivering clean, responsive, and user-friendly applications with smooth functionality and long-term scalability.
3D Animations
Creative 3D animation specialist focused on producing high-quality visuals for brands, products, advertisements, and digital campaigns. Services include product animations, cinematic renders, motion graphics, logo animations, explainer videos, environment design, and realistic visual presentations. Every project is designed with attention to detail, smooth animation flow, premium visual quality, and engaging storytelling to help brands stand out professionally.
CMS Development
CMS developer with experience building modern, responsive, and conversion-focused websites using WordPress, Webflow, Shopify, and Elementor. Services include custom website development, landing pages, eCommerce stores, CMS integrations, SEO-friendly structure, speed optimization, responsive UI/UX, and ongoing website management. Focused on creating scalable and easy-to-manage digital platforms that combine clean design with strong functionality and performance.
A Good next step would be to schedule a quick zoom call to initiate with the project.
Let jump into the chat to collaborate for a long term.
WordPress Website Design
Label & Packaging Design
Landing Page Design
Adobe Illustrator
Typography
Figma
Web Design
UI/UX Prototyping
UX & UI Design
Shopify
WordPress e-Commerce
Mobile App
Layout Design
UI Graphics
3D Animation
Motion Graphics
PHP
Swift
Android App
iOS Development
Luigi C.
Brooklyn, New York
$20/hr
5.0
417 jobs
If your Wix website looks outdated, feels like a template, or isn't converting — that's my specialty.
⭐ 5-Star Rated Wix Studio Expert Designer & SEO Strategist with 16+ years of experience helping businesses refresh, redesign, and grow their online presence. I don't just make sites look better — I restructure the user experience and optimize for search so your site drives real results: more demo requests, more leads, and more trust from the moment someone lands on your page. I also provide instructions on how to maintain the site, like media, text, and other things that you might need to maintain the website afterwards, upon request.
Every review I've earned on Upwork reflects one thing: clients who came with a problem and left with a site they're proud to share.
🎨 Design & Development:
→ Visual redesigns and layout improvements in Wix & Wix Studio
→ UX cleanup: spacing, typography, visual hierarchy, mobile responsiveness
→ SaaS, service, health coaching, and e-commerce brand websites
→ Conversion-focused design (CTAs, flow, messaging clarity)
→ Figma-to-Wix transfers with pixel-level accuracy
→ Email capture, landing pages, and coming-soon builds
→ Ongoing site maintenance, blog publishing, and content updates
🔍 SEO Services:
→ Organic Content Performance Analysis — keyword rankings, top 10 keywords, content strengths & gaps, target audience alignment
→ LLM SEO Phrases used as strategic blog categories
→ Technical SEO Audit — page structure, meta setup, URL slugs, focus keywords, speed optimization
→ On-page optimization & ADA accessibility compliance
→ Cookie banner setup & each-page SEO compliance templates
→ Competitor Analysis — including CPC and ad spend insights
→ Google & paid ad strategy — 3 targeted ad concepts per campaign (short headline, long headline, description)
→ Blog strategy — topic ideas, FAQ development (General, Pricing, Technical/Trust), and full blog post writing per category
→ Content optimization aligned with how AI search engines (LLMs) surface results
🏗️ Who I work best with:
You already have a site live — but it doesn't reflect the quality of your business. Maybe it looks like everyone else's template. Maybe your bounce rate is high. Maybe you're invisible on Google. That's exactly where I come in.
I also work with clients building from scratch who need a clean, modern, search-optimized Wix site — without the back-and-forth.
Industries I've worked in:
Healthcare & SaaS • Design-Build & Construction • Health & Wellness Coaching • E-Commerce • AI & Tech Enablement • All around the world 🌎
🔧 My process is simple:
I review your current site or brief, identify what's holding it back visually and in search, then deliver a refreshed design and SEO strategy that feels intentional — not templated. I communicate clearly, hit deadlines, and don't disappear mid-project.
✅ What you can expect:
→ Clean, modern design that matches your brand
→ Mobile-first, fast-loading pages
→ Clear CTAs that guide visitors toward action
→ A full SEO foundation — technical, on-page, and content
→ A designer and strategist who asks the right questions upfront
My clients leave happy. The reviews speak for themselves.
✦ Top Rated & ID Verified
Let's make your site work as hard as you do. 🚀
Wix
Web Design
Website
Website Redesign
SEO Audit
SEO Strategy
Landing Page Design
Ecommerce Website
Website Optimization
Website Customization
Website Maintenance
Responsive Design
Web & Mobile Design Consultation
Replit
Web Application
Website Migration
Wix SEO Wiz
AI Chatbot
Ada
Photo Retouching
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