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$150/hr
100%
Job Success
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Top 0.01% nationally; 2nd in Canada, repeated top-20 finishes in programming, mathematics, and physics competitions. $1M+ earned, 100% Job Success, 7,600+ hours, average engagement 330+ hours.
I build production AI inside real products, especially Rails/Python systems that need more than a demo.
โข Multi-LLM failover across Claude / GPT / Grok - 99.9% uptime, zero dropped requests
โข PGVector RAG 5-10x faster than hosted APIs, embedded in Active Record
โข AI contract parser shipped in 3 weeks with OCR fallback and source-document backlinks
โข 1M-row pipeline cut from 90 minutes to 30 seconds for an industrial dashboard where downtime costs millions
25 years shipping software: Rails 15 years, Python 8 years, Node, .NET, PostgreSQL/vector search, F#, Clojure, Scala, C/C++, scraping, and data pipelines.
Former CTO: grew a company 12x from $20K/mo to $250K/mo, hired engineers, set direction, and still wrote the hard code.
Send me the product, the stack, and what the AI needs to do. I respond fast and only take projects with a clear path to value.
$20/hr
99%
Job Success
$60K+ earned
Available now
Offers consultations
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๐ Selected as one of the Top Rated Plus Designer/Developers by Upwork ๐
๐๐๐๐๐๐ 10+ Years of Web Design & Development Excellence
Over the last 10 years of experience crafting websites that are not only visually stunning but also high-performing, SEO-friendly, and business-driven. From startups to established brands, I help clients turn their vision into a polished, scalable online presence.
๐น Full-Stack Expertise โ From idea to deployment, I handle the complete website lifecycle.
๐น Pixel-Perfect Design โ Modern, responsive, W3C-compliant websites that work flawlessly across devices.
๐น Business-Oriented Approach โ Every project is built to drive sales, engagement, and growth.
I am specialized in the below sections...
๐ Website Builders & CMS Platforms | Frameworks - WordPress, Shopify, Squarespace, Wix, Webflow, Weebly, Hubspot, OpenCart, PrestaShop, Magento, Drupal, GoDaddy, Google Sites, Joomla, Kajabi, Sitebuilder, Codeigniter, Laravel, Yii, Cakephp, Zend
๐ Databases - SQLite, Realm Database, MongoDB, MySQL, PostgreSQL, Oracle Database, Firebase Realtime Database
๐ Web Design Deliverables - Prototyping, Mockup, Style Guide, User Flow, Landing Page, Website, Website Redesign, Mobile App Redesign, Email Design, High Fidelity Design, Icon Design, Research Documentation, Sketching, Web Component Design, Wireframing
๐ UX/UI Design Software - Adobe Illustrator, Adobe XD, Adobe Photoshop, Balsamiq, Figma, Sketch, InVision
๐ Front-End Development Skills - Adobe Photoshop, Google Analytics, .NET Framework, Angular, AngularJS, Bootstrap, Git, jQuery, React, Vue.js, WordPress, Node.js, SaaS, AJAX, AWS Amplify, Backbone.js, Bitbucket, BootstrapVue, Docker, Kubernetes, Next.js
๐ Ecommerce Platforms - Magento, Squarespace, Wix, WordPress, Shopify, WooCommerce, BigCommerce, Elementor, Weebly
๐ SEO Services - On-Page SEO, Off-Page SEO, Technical SEO, Content SEO, Competitive Analysis, SEO Audit, SEO Keyword Research, SEO Performance, SEO Setup & Configuration, SEO Strategy, Link Wheel, Local SEO, SEO, SEO Backlinking, SEO Writing, Shopify SEO
๐ WordPress Plugins - WooCommerce, Akismet, All in One SEO Pack, Amazon Plugin, AWeber, BuddyPress, Clickbank WordPress Plugin, Contact Form 7, Divi, Elementor, Facebook Plugin, Genesis Framework, GetResponse Plugin, Google AdSense Plugin, Gravity Forms, Instagram Plugin, LearnDash, LinkedIn Plugin, Mailchimp Plugin, PayPal Plugin, Slider Revolution, Thrive Themes, Twitter Plugin, Vimeo, Inc, W3 Total Cache, WP Rocket, WPLMS, Yoast SEO, YouTube Plugin
๐Payment Systems - PayPal, Stripe, Braintree, WePay, Worldpay, 2Checkout, Opayo, Payoneer
๐Back-End Development Deliverables:
API, Database, Database Architecture, Database Design, Database Maintenance, Software Architecture & Design, Web Service, Business Logic Layer, Data Access Layer, RESTful API, Automated Deployment Pipeline, Back-End Development, Infrastructure as Code, PHP Script, Python Script, Requirements Specification
๐Back-End Programming Languages:
Java, Kotlin, Scala, PHP, Ruby, SQL, TypeScript, Python, C#, C++, Elixir, Apache Groovy, ASP, Clojure, D Language, Dart, Delphi, Erlang, F#, Fluid Hyper Text Markup Language, Golang, GraphQL, Haxe, JADE, Objective-J, Perl, Rust, Transact-SQL, Visual Basic, XQuery, Laravel
๐ What You Can Expect from Me
โ
Fast-loading, secure, and mobile-responsive websites
โ
Clean, maintainable code with future scalability in mind
โ
SEO optimization from day one
โ
Transparent communication and on-time delivery
๐ฉ Letโs Build Something Extraordinary
Whether you need a brand-new website, a redesign, or complex backend development, Iโm here to deliver solutions that make a difference. Letโs discuss your project and bring your vision to life.
Best Regards,
Kulvinder
๐งฉ Keywords: WordPress | WordPress Designer | WooCommerce Store Optimization | Elementor Expert | WordPress Backup | Web Design | WordPress Development | WordPress Multisite | WooCommerce Store Setup | WordPress Custom Theme | WordPress Installation | WordPress Woocommerce | WordPress Customization | WooCommerce Store Customization | WordPress Theme Customization | WordPress Bug Fix | PSD to WordPress | WordPress Security | WordPress Plugin Development | WooCommerce Store | Figma to WordPress | Elementor Pro | WordPress Theme | WordPress Ecommerce | Divi | Frontend Developer | WordPress Migration | WooCommerce Store Redesign | Website Design | WordPress Expert | WordPress Thrive Theme | WordPress Website Optimization | WordPress Plugin | WordPress Landing Page | XD to WordPress | WordPress Website | Website Designer | WordPress Elementor Expert | Elementor | WordPress Optimization | WordPress Plugin Customization | ACF Pro | ACF | ACF Field Group | ACF Option page
Associated with
๐ญ๐ผ๐ฝ๐๐ฎ๐นยฎ Expert-Vetted Talent๐
$1M+
earned
United States
$60/hr
100%
Job Success
$30K+ earned
Available now
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AI/ML Engineer & Full Stack Developer | Python โข PyTorch โข Agentic ai โข React โข TypeScript
I build machine learning systems and full-stack web applications.
AI/ML: Reinforcement learning (actor-critic, PPO, genetic algorithms), deep learning (TCN, LSTM, MLP), LLM integration and automation, model training and evaluation in PyTorch and TensorFlow.
Full Stack: React, Next.js, TypeScript, Python (Django/Flask/FastAPI), PHP/Laravel, Go. 4+ years production experience at TeamGantt.
What I've built:
- Multi-asset algorithmic trading systems using deep RL and temporal convolutional networks
- Walk-forward optimization framework for systematic strategy evaluation
- Go-based trading broker with REST API and real-time streaming
- Production features in React/TypeScript/PHP/Clojure serving thousands of users
Background: Controls engineering + Virginia Tech AI & Machine Learning program (completing 2026).
I deliver fast, communicate clearly, and write tested code.
$20/hr
99%
Job Success
$40K+ earned
Available now
Offers consultations
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๐๐ช๐ฒ๐ฏ๐๐ถ๐๐ฒ ๐๐ฒ๐๐ถ๐ด๐ป๐ฒ๐ฟ | ๐ ๐ผ๐ฏ๐ถ๐น๐ฒ ๐๐ฝ๐ฝ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐ฒ๐ฟ | ๐๐ ๐ฆ๐ผ๐น๐๐๐ถ๐ผ๐ป๐ ๐๐
๐ฝ๐ฒ๐ฟ๐ | ๐ช๐ผ๐ฟ๐ฑ๐ฃ๐ฟ๐ฒ๐๐ | ๐ฆ๐ต๐ผ๐ฝ๐ถ๐ณ๐ | ๐๐น๐๐๐๐ฒ๐ฟ | ๐ฅ๐ฒ๐ฎ๐ฐ๐ ๐ก๐ฎ๐๐ถ๐๐ฒ | ๐ช๐ฒ๐ฏ๐ณ๐น๐ผ๐ | ๐ช๐ถ๐
| ๐ฆ๐พ๐๐ฎ๐ฟ๐ฒ๐๐ฝ๐ฎ๐ฐ๐ฒ๐
Hello, I am an expert in website design, mobile app development, and AI-powered solutions for businesses that want a strong digital presence and scalable technology solutions. My focus is on building modern, fast, user-friendly websites and mobile applications that help companies attract customers, automate processes, and grow their business.
With over 10 years of experience in web and mobile development, I have worked with startups, entrepreneurs, and established companies to create business websites, eCommerce stores, SaaS platforms, mobile apps, and AI-driven solutions.
I combine creative design, clean development, and AI technology to deliver products that are visually appealing, technically reliable, and built for growth.
๐ What I Can Help You With
โข Custom Website Design & Development
โข WordPress Development (Elementor, Custom Themes)
โข Shopify Store Development & eCommerce Solutions
โข Website Redesign & Performance Optimization
โข Landing Page Design & Development
โข Web Applications & SaaS Platforms
โข Mobile App Development (iOS & Android)
โข Cross-Platform App Development
โข AI Chatbots & AI Assistants
โข AI-Powered Business Automation
โข API Development & Third-Party Integrations
โข CRM, ERP & Custom Business Systems
Every solution I build is responsive, scalable, SEO-friendly, and optimized for performance.
๐ฑ Mobile App Development
โข Flutter Development
โข React Native Development
โข iOS App Development
โข Android App Development
โข On-Demand Apps
โข Ride-Hailing Apps
โข Food Delivery Apps
โข Healthcare Apps
โข Real Estate Apps
โข Marketplace Apps
โข GPS & Location-Based Applications
โข Subscription-Based Mobile Apps
๐ค AI & Automation Solutions
โข AI Chatbot Development
โข OpenAI / ChatGPT Integration
โข AI Customer Support Systems
โข AI Content Generation Tools
โข AI Workflow Automation
โข AI-Powered SaaS Platforms
โข Machine Learning Integrations
โข Voice AI Solutions
โข AI Agents & Virtual Assistants
๐ป Technologies & Platforms
Website Platforms
WordPress โข Shopify โข Webflow โข Wix โข Squarespace โข Framer
Frontend Development
HTML5 โข CSS3 โข JavaScript โข React โข Next.js โข Vue.js
Backend Development
PHP โข Laravel โข Node.js โข Express.js โข REST APIs
Mobile Development
Flutter โข React Native โข Swift โข Kotlin
AI Technologies
OpenAI โข ChatGPT โข Claude โข Gemini โข AI APIs โข Automation Tools
Design Tools
Figma โข Adobe XD โข UI/UX Design โข Prototyping
๐ฏ Industries I Work With
E-commerce โข SaaS โข Healthcare โข Real Estate โข Education โข Travel & Tourism โข Logistics โข FinTech โข Startups โข Local Businesses โข Marketplaces
โญ Why Work With Me
โ 10+ Years of Website & Mobile App Development Experience
โ Modern UI/UX Design with Conversion-Focused Approach
โ AI-Powered Business Solutions & Automation Expertise
โ Clean, Scalable & Secure Development Practices
โ SEO-Friendly & Performance-Optimized Solutions
โ Clear Communication & Reliable Project Delivery
โ Long-Term Technical Support & Maintenance
My goal is to build websites, mobile apps, and AI-powered solutions that not only look great but also help businesses scale, automate operations, and achieve measurable growth.
๐ฉ Letโs Work Together
If you need a Website Designer, Mobile App Developer, AI Specialist, WordPress Developer, Shopify Expert, or Full-Stack Development Partner, feel free to send me a message and discuss your project.
Best Regards,
Priyanka
Associated with
๐ญ๐ผ๐ฝ๐๐ฎ๐นยฎ Expert-Vetted Talent๐
$1M+
earned
$120/hr
100%
Job Success
Available now
Offers consultations
Start of list.
End of list.
๐ Ex-Meta / Yahoo | AI Full-Stack Engineer | GenAI, LLM, SaaS, APIs
I build end-to-end AI products โ from LLM-powered features to scalable full-stack systems. With 10+ years at Meta, Yahoo, and startups, Iโve shipped production systems used by millions and designed platforms that scale reliably.
I focus on delivering real, usable AI applications โ not just demos.
โ
What I Can Help You Build:
โข GenAI Applications: GPT / Claude integrations, AI copilots, workflows, prompt engineering
โข RAG Systems: chat over documents, knowledge bases, retrieval pipelines
โข Full-Stack AI Apps: frontend + backend + APIs + AI integration
โข AI Agents: tool-using agents, automation workflows
โข Backend Systems: scalable APIs, microservices, cloud architecture
โข AI SaaS: MVP โ production-ready systems
๐ผ Experience Highlights:
โข Meta โ built large-scale production systems
โข Yahoo โ personalization systems serving billions of requests/day
โข Indeed / Workday โ scalable backend and cloud platforms
โข Tech Lead โ owned architecture and built systems end-to-end
โข Real-time systems processing TBs/day (Kafka, distributed systems)
๐ What You Get:
โข End-to-end builder (AI + full-stack + product)
โข Production-ready systems, not fragile prototypes
โข Scalable architecture from day one
โข Fast execution and clear communication
๐ง Tech Stack:
AI: GPT-4/5, Claude, RAG, AI agents, prompt engineering
Frontend: React, Next.js, TypeScript
Backend: Python (FastAPI, Flask), Node.js, Java, Scala, APIs, microservices
Cloud: AWS (S3, Lambda), serverless architecture
Infra: Docker, Kubernetes, CI/CD
Data: Spark, Kafka
Databases: PostgreSQL, MySQL, MongoDB, Redis
๐ฏ Typical Projects:
โข AI chatbot / copilot
โข RAG over internal/company data
โข AI SaaS MVP
โข Full-stack GenAI applications
โข Workflow automation with LLMs
Keywords: Generative AI, GenAI, LLM, GPT-4, GPT-5, Claude, OpenAI API, Anthropic Claude, RAG, Retrieval Augmented Generation, AI Agents, Prompt Engineering, AI Automation, Chatbots, Copilots, Python, FastAPI, Flask, Full-Stack Development, Frontend Development, Backend Development, React, Next.js, TypeScript, Node.js, API Design, REST APIs, GraphQL, Microservices Architecture, SaaS Development, Multi-Tenant Systems, Authentication, OAuth, JWT, Cloud Architecture, AWS, Serverless, Docker, Kubernetes, CI/CD, Distributed Systems, System Design, PostgreSQL, MySQL, MongoDB, Redis, Machine Learning, MLOps, Data Engineering, Apache Spark, Kafka
Industries: AI Platforms, SaaS, Enterprise Software, AdTech, MarTech, E-commerce, Marketplaces, FinTech, Payments, Healthcare, HealthTech, Developer Tools, Productivity Tools, Analytics Platforms, Data Platforms, Media, Social Platforms
$17/hr
100%
Job Success
$81 earned
Available now
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Iโm a mobile app developer with 8+ years of experience building, fixing, and maintaining apps for iOS and Android.
I specialize in Ionic, Capacitor/Cordova, React Native, and Flutter, and have published multiple apps to both the Google Play Store and Apple App Store.
I donโt just build apps โ I help solve problems when things arenโt working.
What I can help with:
Fixing build issues (Xcode, Android Studio, Gradle)
Debugging Cordova / Capacitor plugin problems
Creating or modifying custom plugins
API integration and backend connectivity
Firebase integration (auth, push notifications, database)
App Store / Play Store deployment and fixes
Migrating legacy Ionic / AngularJS apps to modern frameworks
Iโve developed custom solutions like a barcode + speech VIN scanner and have extensive experience working with device features and native functionality.
I also take on small or urgent tasks, whether itโs fixing a crash, resolving a plugin issue, or getting your app unstuck quickly.
My background in DevOps and backend systems (AWS, REST APIs, MySQL/Postgres) allows me to handle both frontend and backend issues when needed.
If your app is broken, stuck, or needs improvement, I can help get it working efficiently.
$99/hr
100%
Job Success
$100K+ earned
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My software career started when I was 14, with writing Ruby web apps for small businesses, freelance collectives, and failed startups (Instajournal anyone?).
Now, another 14 years and hundreds of projects later:
- I've built reactive web apps with React and reactive desktop apps with QtQuick;
- I've worked on blockchains as well as an alternative to blockchains (Holochain);
- I've designed low-cost zero-maintenance cloud apps comprised of AWS or GCP services; I've also managed custom baremetal deployments.
- I've maintained an innovative Linux distribution (NixOS); I've even worked on Linux kernel device drivers.
What I can bring to the table:
- Breadth. Instead of trying to force a square peg into a round hole by implementing a technology that doesn't align with your use case, I can select something that's tailored to your domain.
- Depth. If what you're trying to do is best solved with a patch to the operating system, the database, or the programming language, that's what I'm going to do. And have done before.
- Security.
- Simplicity.
I have extensive experience with Clojure, Rust, Python, Ruby, Elixir, Erlang, Go, Rust, Java, JavaScript programming languages and their respective ecosystems. When it comes to DevOps, I'm familiar with NixOS (commit access since 2017), NetBSD, OpenBSD, RHEL, Debian. I have designed cloud application architectures using various AWS and GCP services. I'm a fan of React for web and Qt for desktop. I'm well versed in use of modern cryptographic primitives, from signatures to PAKE.
I work Monday through Friday from 9 to 5 Eastern (13 to 21 UTC).
Send me a message and let's figure it out!
$45/hr
100%
Job Success
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FullโStack Developer & DevOps Consultant | 15+โฏYears
๐บ๐ธโฏAmericanโbornโ|โ๐โฏBased inโฏBacolod, Philippines (UTCโฏ+8)
I have delivered production web applications for healthcare, finance, government, education, and manufacturing, always with an eye on security, performance, and futureโproofing. From integrating with legacy systems, to building cutting edge AI systems, I provide technical leadership and a track record of success and innovation.
Core Strengths:
Backend & APIs - FastAPI, Flask, Django, Spring, REST, SOAP, GraphQL, HL7, EDI
FrontโEnd Delivery - Reactโฏ, Angular, JSP & PHP UIs
DevOps & Automation - Docker, Jenkins, GitHub Actions, AWSโฏ(CodePipeline, EC2, RDS, S3), AzureโฏDevOps
AI - Model Design, Model Training and Inference integrations, MCP server development, Semantic Search/RAG, Agentic Worflow development.
Domain Contributions:
Healthcare - Built HL7โdriven data pipelines for a CDCโfunded integration project, improving reporting completeness.
Finance - Developed an investingโanalytics portal for a hedge fund, adding advanced reporting & predictive dashboards.
Government - Created cybersecurity dashboards for DHS projects, aggregating global threat data into a single view.
Education - Delivered a tenureโtracking, enrollment, and classโscheduling systems.
Manufacturing / Retail - Integrated Amazon SPโAPI, Shopify, Wayfair GraphQL, eliminating manual order entry and providing real time tracking and issue notifications.
Tech Stack at a Glance:
Languages - Python, Java, Rust, Go, TypeScript, C/C++, Clojure, PHP, Bash, SQL
Frameworks - Spring, FastAPI, Django, Flask, Angular, React, Laravel, WordPressโฏ/โฏJoomlaโฏ/โฏSugarCRM
Cloud & DevOps - AWSโฏ(EC2, RDS, S3, CodePipeline), AzureโฏDevOps, Docker, Airflow, Jenkins
Data - PostgreSQL, MySQL, MsSQL, BerkeleyโฏDB, Hadoopโฏ/โฏHive, Ms Access, Airtable
Integrations - HL7, GraphQL, REST, EDI, AmazonโฏSPโAPI, Wayfair, Shopify, n8n
What Youโll Get:
Fast, LowโFriction Onboarding - I jump into legacy codebases without slowing your team.
Clear Communication - Straightforward updates, realistic timelines, honest risk calls.
ProductionโReady Deliverables - Tested, documented, and built for longโterm maintainability.
Ongoing Partnership - I stay available to support, optimize, and extend your system as your needs evolve.
Seeking a developer who can bridge time zones and still feel like part of the core team?
Letโs discuss how I can keep your systems running smoothly and your roadmap moving forward.
$33.33/hr
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I'm a Christian, the father of Bianca and Murilo, and a passionate
software engineer with 10 years of experience creating diverse and
efficient solutions. My career in software development is marked by
a quick learning ability, a solid technical foundation, and a constant
pursuit of professional growth.
Throughout my journey, I have worked on challenging and impactful
projects, taking on responsibilities ranging from feasibility analysis
to implementation and maintenance. I have experience with
technologies such as Ruby on Rails, Elixir (Phoenix), Clojure,
Flutter, Scala (ZIO), NodeJS, React, Golang, MongoDB, Datomic,
Datastore, MySQL, Postgres, Redis, RabbitMQ, Kafka, AWS,
GCP, REST, GraphQL, ElasticSearch, Kibana, Logstash, Scout,
NewRelic, HoneyBadger, Splunk, Datadog, Grafana, Prometheus,
Loki, OpsGenie, Looker, and Sentry. I enjoy working on complex
projects and transforming ideas into functional products that make a
difference.
$90/hr
$1K+ earned
Start of list.
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Business first software generalist: 12+ years direct work with CXOs/VPs
Cloud systems at scale: 100 K requests/sec, 300+ M monthly active users, AWS and Azure, CI/CD
Educator: Staff education and community events (Clojure North, IN/Clojure,Belaying growth)