Talent badge filter
Select talent location
Select talent time zones
$22/hr
98%
Job Success
Available now
Offers consultations
Start of list.
End of list.
🔥 Senior Full Stack Developer For SaaS, Ecommerce, AI Features And Complex Web Platforms.
🔥 I have worked in enterprise cloud solutions with 𝟱𝟬𝟬𝟬+ 𝘁𝗮𝗯𝗹𝗲𝘀, 𝟱𝟬𝟬𝗚𝗕+ 𝗱𝗮𝘁𝗮𝗯𝗮𝘀𝗲, 𝟭 𝗠𝗜𝗟𝗟𝗜𝗢𝗡 𝗮𝗰𝘁𝗶𝘃𝗲 𝘂𝘀𝗲𝗿𝘀.
My work has supported funded startups and high scale platforms including
✅ Elevatus with 10.5M dollars in funding
✅ Tallyfy with 1.4M dollars in funding
✅ MetaBeta with 500K euros in funding
✅ Skolaro with 1.5M plus users
✅ 40 plus complex web and software projects delivered across SaaS, ecommerce, HR tech, education, healthcare, real estate, finance, CRM, ERP, and automation
I use modern workflows and AI coding tools to move up to 5x faster while still reviewing architecture, security, data flow, and code quality manually. Speed matters, but reliability matters more.
I use modern development workflows and AI coding tools to move faster on scaffolding, refactoring, tests, documentation, and repetitive tasks. Architecture, security, data flow, database design, code quality, and production readiness are always reviewed manually.
Clients hire me when they need a senior developer who can take ownership, understand the full system, fix frontend and backend complexity, improve performance, and ship reliable production work.
𝐅𝐔𝐋𝐋 𝐒𝐓𝐀𝐂𝐊 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 𝐖𝐈𝐍𝐒
✅ High-conversion Landing Page and Frontend Development systems using React, Redux, JavaScript, TypeScript, Next.js, Vue.js, and Nuxt.js
✅ Enterprise dashboards with Data Visualization, RxJS, and real-time API Integration
✅ Performance-critical applications with Website Performance Optimization, webpack, and scalable Frontend Development Framework architecture
✅ Motion-driven User Experience using GSAP and UI micro-interactions
✅ Production-grade Backend Development using Laravel, Symfony, CodeIgniter, Node.js, Nest.js, Express.js, Django, Flask, and Fast API
✅ Secure API, API Development, and API Integration for SaaS platforms
✅ Data-driven systems optimized with MySQL, MySQL Programming, PostgreSQL, and MongoDB
𝐅𝐑𝐎𝐍𝐓𝐄𝐍𝐃 + 𝐁𝐀𝐂𝐊𝐄𝐍𝐃 + 𝐖𝐄𝐁 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓
Frontend Development and Backend Development are not separate silos.
On the frontend, I build scalable interfaces using HTML, HTML5, CSS, CSS3, SCSS, Sass, Bootstrap, TailwindCSS, Material UI, Vuetify, and modern CSS Framework standards with strict Responsive Design and accessibility.
On the backend, I engineer reliable systems using PHP, Core PHP, Custom PHP, PHP Unit, CakePHP, Python, Ruby, Ruby on Rails, JavaScript, and TypeScript, ensuring clean Authentication, Authorization, and Versioning across all APIs.
𝐅𝐔𝐋𝐋 𝐒𝐓𝐀𝐂𝐊 𝐄𝐍𝐆𝐈𝐍𝐄𝐄𝐑𝐈𝐍𝐆
I design Web Development systems that support real users, real traffic, and real growth. I refactor unstable applications, improve Backend Development Framework structure, optimize API Development, and ensure frontend performance aligns with backend scalability.
𝐑𝐄𝐒𝐔𝐋𝐓𝐒 𝐀𝐍𝐃 𝐃𝐄𝐋𝐈𝐕𝐄𝐑𝐘 𝐄𝐗𝐏𝐄𝐑𝐈𝐄𝐍𝐂𝐄
✅ 12 plus years of full stack development experience
✅ 40 plus complex software and web projects delivered
✅ 1M plus active users supported on high scale platforms
✅ 1.5M plus users supported in education technology platforms
✅ 10,000 plus job board integrations supported in HR tech systems
✅ 5,000 plus database tables handled in enterprise cloud environments
✅ 500GB plus database systems worked on and optimized
✅ Up to 80 percent application load time improvement through frontend, backend, caching, database, and query optimization
✅ 47 node AI automation workflows built for recruitment, screening, scoring, scheduling, and follow up
✅ 800 plus hours of automation work across CRM, operations, notifications, internal workflows, and business processes
𝗦𝘂𝗺𝗺𝗮𝗿𝘆:
I've worked across every layer of the stack. On the frontend, I've built production applications with React, Redux, Next.js, Vue.js, Nuxt.js, Angular, AngularJS, Angular 9, Angular 10, and Angular Material.
I write clean, semantic HTML and HTML5 with CSS, CSS3, SCSS, Sass, Bootstrap, TailwindCSS, Material UI, Vuetify, and modern CSS Framework standards, always with Responsive Design, Mobile-First Design, and Cross-Browser Compatibility as non-negotiables.
On the backend, I've shipped production systems with Laravel, Symfony, CodeIgniter, Node.js, Nest.js, Express.js, Django, Flask, and Fast API — writing in PHP, Core PHP, Custom PHP, Python, JavaScript, TypeScript, Ruby, and Ruby on Rails with comprehensive PHP Unit testing. I design and integrate REST APIs, handle API Integration and API Development for SaaS platforms, and work with MySQL, advanced MySQL.
Let’s build it right.
$15/hr
94%
Job Success
$60K+ earned
Offers consultations
Start of list.
End of list.
⭐ 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 | 𝟔+ 𝐘𝐞𝐚𝐫𝐬 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 | $𝟔𝟎𝐤+ 𝐄𝐚𝐫𝐧𝐞𝐝 | 𝟑𝟓𝟎𝟎+ 𝐇𝐨𝐮𝐫𝐬
I’m a senior full-stack engineer with 6+ years of experience in Angular, React, and Node.js, combined with an AI-assisted development workflow (Cursor AI, Claude Code, v0, LLM APIs) that helps reduce build time without compromising quality.
I focus on shipping clean, scalable products from AI-powered MVPs and LLM integrations to enterprise-grade web applications.
𝐏𝐫𝐨𝐯𝐞𝐧 𝐑𝐞𝐬𝐮𝐥𝐭𝐬:
AI SaaS Platform
Built a GPT-powered document analysis tool using RAG pipelines, embeddings, and a React dashboard, launched to over 200 beta users
Cloudflare Security Implementation
Integrated Cloudflare with a React application on AWS, significantly reducing bot traffic and spam while maintaining performance
AI Risk Calculator and Lead Funnel
Developed an AI-driven risk assessment tool with lead generation workflow and WordPress integration
Performance Optimization
Improved Next.js application performance and PageSpeed scores, handling complex animations without degrading load time
Long Term SaaS Development
Delivered over 290+ hours on a React and Next.js system, contributing to feature development, stability, and scalability
Automation Systems
Built custom email outreach workflows and backend automations to reduce manual operations
𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞:
Efficient, AI-Assisted Delivery – AI tools help accelerate development, reduce boilerplate, and catch issues early.
Practical LLM Experience – Real-world production use of OpenAI, Claude, Gemini, Replicate, ElevenLabs, and Fal.ai.
End-to-End Ownership – Frontend, backend, database, and deployment handled by one senior engineer.
Consistent Track Record – Top-Rated on Upwork with a 97% Job Success Score.
Strong Technical Judgment – I help shape the right solution, not just implement features.
Clear, Reliable Communication – Async-friendly, proactive updates, and transparent progress.
𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝:
AI-Powered SaaS MVPs – Angular or React frontends with NestJS / Node.js backends
Enterprise Web Applications – Advanced Angular apps (v10–18)
APIs & Microservices – RESTful and GraphQL services
E-Commerce & Payments – Stripe, Braintree, Authorize.Net
Custom ERP & Business Systems
Third-Party API Integrations
𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞:
𝐀𝐈 & 𝐋𝐋𝐌 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧:
LLM APIs: OpenAI (GPT-4o), Anthropic Claude, Google Gemini, Replicate, ElevenLabs, Fal.ai
RAG Pipelines: Embeddings, vector search, document ingestion & retrieval
Automation: n8n workflows, custom LLM orchestration, model fine-tuning
AI Dev Tools: Cursor AI, Claude Code, GitHub Copilot, Replit Agent
Generative Pipelines: Text, image, audio, and video generation
𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝:
Angular 10–18 (CLI, Universal/SSR, Ivy, Lazy Loading, Reactive Forms, i18n)
React v18 (Hooks, Context, Next.js–ready)
TypeScript & JavaScript (ES2022+)
UI Libraries & Styling: PrimeNG, Angular Material, Tailwind CSS
AI UI Tooling: v0 by Vercel, Lovable.dev, Bolt.new (rapid component generation)
𝐁𝐚𝐜𝐤𝐞𝐧𝐝:
Node.js v18+, Express.js, NestJS
API Architectures: RESTful APIs, GraphQL, WebSockets
Databases: MySQL, PostgreSQL, MongoDB, SQL Server
𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬:
Cloud Platforms: AWS (EC2, S3, Lambda), Microsoft Azure, Google App Engine, DigitalOcean
Version Control & CI/CD: GitHub, GitLab, Bitbucket, automated pipelines
Project Management: Jira, ClickUp, Trello
Methodologies: Agile / Scrum
𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤:
Discovery & Scoping (Day 1):
I review your requirements, define the architecture, select the right tech stack, and deliver a clear technical scope with realistic timelines, no guesswork or vague estimates.
AI-Accelerated Build (Days 2–N):
I use AI tools like Cursor AI and Claude Code to speed up development, refactor confidently, and catch issues early, maintaining high code quality while moving fast.
Continuous Integration & Testing:
Automated tests, cross-device QA, and performance optimization are built into every sprint, not treated as an afterthought.
Cloud Deployment & Handoff:
I handle production deployment on AWS or Azure, set up CI/CD pipelines, and provide clean documentation so your team can take over with confidence.
Ongoing Support & Iteration:
After launch, I support maintenance, security updates, and feature enhancements, acting as a long-term technical partner, not just a contractor.
𝐋𝐞𝐭’𝐬 𝐬𝐡𝐢𝐩 𝐬𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐫𝐞𝐚𝐥.
Send your idea, and I’ll respond with a clear scope and timeline within hours.
Associated with
𝐀𝐯𝐢𝐨𝐱 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐏𝐯𝐭. 𝐋𝐭𝐝.
$100K+
earned
$30/hr
91%
Job Success
$80K+ earned
Offers consultations
Start of list.
End of list.
Hi there! I'm a Full-stack Web Engineer with over 5 years of experience specializing in building complete websites, including both frontend and backend components, as well as backends for Android and iOS apps. My expertise lies in using JavaScript frameworks and web development tools.
What I Do:
- I create websites that are dynamic, user-friendly, and stand out.
- Experienced in MERN (MongoDB, Express.js, React, Node.js) as well as Vue.js, Next.js, and Angular.js for building web applications.
- I can set up your website on various cloud platforms like Amazon EC2, Heroku, and Google Cloud.
- Skilled in working with different databases like MongoDB, MySQL, and ORMs.
- I can add payment features to your website using Stripe, PayPal, etc.
- I build websites that can interact with users, incorporating forms and live updates.
- Familiar with HTML5, CSS3, and JavaScript for creating the front end of websites.
- I use tools like GitHub, BitBucket, and GitLab for managing code versions.
- I can integrate your website with social media and other services like Google Maps, Sendgrid, and Twilio.
My Approach:
- I carefully plan and estimate the work to ensure your project is completed on time.
- I'm adept at finding and fixing issues to keep your website running smoothly.
- I keep in touch regularly, ensuring everything is clear and easy to understand.
- Even after completing the project, I'm here to help with any further support you might need.
I focus on using the latest and most effective methods to build your website. Ensuring my clients are happy and supported is important to me.
Thanks for checking out my profile!
United Arab Emirates
$45/hr
100%
Job Success
$40K+ earned
Available now
Offers consultations
Start of list.
End of list.
𝐈 𝐛𝐮𝐢𝐥𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐛𝐚𝐜𝐤𝐞𝐧𝐝, 𝐀𝐈, 𝐚𝐧𝐝 𝐝𝐚𝐭𝐚 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐰𝐡𝐞𝐫𝐞 𝐫𝐞𝐥𝐢𝐚𝐛𝐢𝐥𝐢𝐭𝐲, 𝐬𝐜𝐚𝐥𝐞, 𝐚𝐧𝐝 𝐜𝐥𝐞𝐚𝐧 𝐚𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 𝐦𝐚𝐭𝐭𝐞𝐫 𝐦𝐨𝐫𝐞 𝐭𝐡𝐚𝐧 𝐚 𝐝𝐞𝐦𝐨.
I’m Tilek, a Senior Backend / AI / Data Platform Engineer with 15+ years of experience building SaaS products, enterprise systems, cloud infrastructure, AI applications, data pipelines, and complex integrations.
My core stack includes Python, FastAPI, .NET/C#, Java, Node.js, PostgreSQL, AWS, Azure, GCP, Docker, Kubernetes, Kafka, Airflow, OpenAI API, Claude API, LangChain, LangGraph, RAG, vector databases, MLflow, and MLOps tooling.
Most AI and data products fail outside the model layer.
The real risks are fragmented data, weak backend architecture, unreliable integrations, missing observability, slow async workflows, poor security boundaries, untested AI behavior, and systems that become expensive to change after launch.
I help teams turn AI, automation, data, and backend workflows into maintainable production products.
𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗
AI and LLM systems
RAG pipelines, AI agents, OpenAI / Claude integrations, LangChain, LangGraph, vector search, prompt workflows, tool calling, structured outputs, evaluation pipelines, fallback logic, and LLMOps.
Backend platforms
Python/FastAPI services, .NET/C# backends, Java/Spring Boot systems, Node.js APIs, PostgreSQL, SQL Server, MongoDB, Redis, microservices, REST APIs, GraphQL, OAuth/JWT, and role-based access.
Data engineering systems
ETL/ELT pipelines, batch and streaming data flows, Kafka, RabbitMQ, Airflow, Spark, dbt, Redshift, BigQuery, Snowflake, data validation, enrichment, reconciliation, and reporting-ready models.
MLOps and AI operations
Model deployment, monitoring, experiment tracking, evaluation workflows, MLflow, Kubeflow, data quality checks, inference cost optimization, rollback patterns, and production reliability.
Enterprise integrations
CRM systems, financial platforms, SaaS tools, legacy applications, internal tools, webhooks, third-party APIs, event-driven workflows, secure data exchange, and operational automation.
𝗦𝗘𝗟𝗘𝗖𝗧𝗘𝗗 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘
Enterprise AI/data infrastructure
Built high-volume data pipelines, validation logic, model-output reliability layers, backend processing workflows, and data quality systems for AI and ML products.
Responsible AI and model monitoring platforms
Developed backend systems for model monitoring, explainability, compliance reporting, bias detection, AI governance, evaluation workflows, and enterprise ML operations.
Hitachi Energy
Built backend and data-processing infrastructure for enterprise energy systems, telemetry workflows, operational analytics, cloud architecture, and scalable integrations.
Regulated financial systems
Worked on secure APIs, backend integrations, controlled data services, workflow automation, auditability, and compliance-sensitive architecture.
AI voice and agent workflows
Built real-time AI voice-agent workflows with LLM orchestration, API actions, fallback logic, structured outputs, call context handling, and production debugging.
𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞
I start by identifying delivery risks: data ownership, backend boundaries, integration failure modes, scaling constraints, security requirements, AI reliability, observability, and operational ownership.
Then I build the smallest production-safe foundation that can grow without expensive rewrites.
You get clean architecture, realistic estimates, clear communication, readable documentation, and systems that are easier to operate after launch.
𝗕𝗘𝗦𝗧 𝗙𝗜𝗧
AI startups, SaaS platforms, RAG systems, AI agents, document AI, backend modernization, Azure/AWS/GCP cloud systems, enterprise integrations, data pipelines, CRM automation, fintech, healthcare, logistics, energy, regulated workflows, and high-volume data applications.
𝗧𝗘𝗖𝗛𝗡𝗜𝗖𝗔𝗟 𝗦𝗧𝗔𝗖𝗞
Python, FastAPI, .NET, C#, Java, Spring Boot, Node.js, TypeScript, PostgreSQL, SQL Server, MongoDB, Redis, Kafka, RabbitMQ, Airflow, Spark, dbt, Snowflake, Redshift, BigQuery, Docker, Kubernetes, Terraform, AWS, Azure, GCP, OpenAI API, Claude API, LangChain, LangGraph, RAG, Vector Databases, Pinecone, FAISS, OpenSearch, MLflow, Kubeflow, REST APIs, GraphQL, Webhooks, Microservices, Event-Driven Architecture, ETL, ELT, Data Engineering, MLOps, LLMOps, AI Agents, AI Automation, Cloud Architecture, Enterprise Integrations, CI/CD.
𝐇𝐚𝐯𝐞 𝐚 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐀𝐈, 𝐛𝐚𝐜𝐤𝐞𝐧𝐝, 𝐨𝐫 𝐝𝐚𝐭𝐚 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐩𝐫𝐨𝐛𝐥𝐞𝐦?
Send me the context. I’ll identify the highest-risk parts before implementation begins.
Associated with
Vicode Solutions
$30K+
earned
United Arab Emirates
$30/hr
100%
Job Success
Start of list.
End of list.
Most teams hire a data engineer to build the pipelines, then a separate AI engineer to build on top of them, and lose weeks in the handoff. I do both.
I'm Hammad Saleem, with 9+ years architecting cloud data infrastructure and 5+ years building the production AI systems that run on it. The data foundation (Snowflake, Databricks, Redshift, BigQuery, Airflow, multi-cloud ETL/ELT) and the AI layer (RAG, multi-agent orchestration, fine-tuned LLMs, vector search) come from one owner, architecture through deployment. That overlap of data engineering, cloud/MLOps, and LLM/agent specialization in one person is exactly what most profiles only cover half of.
A few systems I've shipped recently:
- A multi-agent inventory-intelligence platform for 9 automotive clients (including JLR, Penske, Holman): 5 specialized agents handling self-correcting SQL generation against Redshift, Looker integration, and reporting across 128K to 10M token contexts.
- A pharma marketing AI serving 11 brands: fine-tuned request routing, multi-modal asset generation, and per-client vector stores for brand-compliant, citation-backed retrieval with HCP/DTC segmentation.
- An enterprise multimodal AI platform on Llama 3.1 8B with custom LoRA fine-tuning (85.6% accuracy) and a RAG system over 480+ documents returning 3 to 4x more relevant results than baseline search.
The data foundation under that work runs just as deep: pipelines processing ~3B rows/day at a national telecom, a 45% AWS cost reduction through rightsizing and storage tiering, an 80% cut in pipeline processing time, and multi-cloud financial reconciliation across Salesforce, SAP, and ad platforms that removed 70% of manual effort.
Where I fit best:
- Teams with messy or scattered data that needs to become a reliable foundation for analytics and AI.
- Companies past the prototype stage that need an AI system to actually hold up in production: observability, retries, cost control, evaluation.
- Founders and CTOs who want one engineer accountable from data ingestion through the deployed AI feature, including the full-stack/API layer that exposes it to users.
How I work: I scope to outcomes, design for cost and scale before writing code, instrument everything (Opik, CloudWatch), and leave you with systems your team can run without me. I'm equally comfortable owning architecture solo or embedding with an existing team.
Core stack: Python, SQL · AWS (Lambda, ECS/EKS, Redshift, S3, Step Functions) · GCP (BigQuery, Pub/Sub) · Snowflake · Databricks · Airflow, Prefect · OpenAI, Anthropic Claude, Gemini, Llama · LangChain, LlamaIndex, multi-agent orchestration, RAG, vector databases · Docker, Terraform, CI/CD.
Certifications:
Microsoft Azure AI Fundamentals · Microsoft Azure Data Fundamentals · IBM Machine Learning with Python · IBM Data Analysis with Python.
If you're building data infrastructure, an AI product, or both, and you'd rather have one senior owner than stitch together two, send me a note with what you're trying to ship. I'll tell you honestly how I'd approach it and whether I'm the right fit.
$18/hr
100%
Job Success
$60K+ earned
Available now
Offers consultations
Start of list.
End of list.
🥇 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 | 𝟭𝟮+ 𝗬𝗲𝗮𝗿𝘀
I build high-performance 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲, 𝗠𝗼𝗯𝗶𝗹𝗲, and 𝗪𝗲𝗯 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 that are scalable, secure, and production-ready.
While I specialize in 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲, 𝗕𝗟𝗘, and 𝗣𝗮𝘁𝗶𝗲𝗻𝘁 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴 𝗦𝘆𝘀𝘁𝗲𝗺𝘀, I also build complete end-to-end digital products including 𝗘-𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲, 𝗙𝗶𝗻𝘁𝗲𝗰𝗵, 𝗖𝗵𝗮𝘁 𝗔𝗽𝗽𝘀, and 𝗦𝗮𝗮𝗦 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀.
𝗠𝗢𝗕𝗜𝗟𝗘 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘
✔ 𝗡𝗮𝘁𝗶𝘃𝗲 𝗶𝗢𝗦 (Swift, SwiftUI, Objective-C)
✔ 𝗡𝗮𝘁𝗶𝘃𝗲 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 (Kotlin, Java, Jetpack Compose)
✔ 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 (Dart, BLoC, Provider, Riverpod)
✔ 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 (JavaScript, Expo, Redux)
𝗪𝗘𝗕 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘
✔ 𝗠𝗘𝗥𝗡 Stack (MongoDB, Express, React, Node.js)
✔ 𝗣𝗛𝗣 𝗟𝗮𝗿𝗮𝘃𝗲𝗹 (Backend APIs & Enterprise Systems)
✔ REST APIs, Microservices & Cloud Architecture
𝗛𝗘𝗔𝗟𝗧𝗛𝗖𝗔𝗥𝗘 𝗦𝗣𝗘𝗖𝗜𝗔𝗟𝗜𝗧𝗬
✔ 𝗘𝗖𝗚 Monitoring Applications
✔ 𝗕𝗹𝗼𝗼𝗱 𝗣𝗿𝗲𝘀𝘀𝘂𝗿𝗲 Apps
✔ 𝗦𝗽𝗢𝟮 (Pulse Oximeter) Apps
✔ 𝗚𝗹𝘂𝗰𝗼𝘀𝗲 Meter Apps
✔ 𝗛𝗯𝗔𝟭𝗰 Monitoring Apps
✔ 𝗪𝗲𝗶𝗴𝗵𝘁 Scale Integration Apps
✔ 𝗦𝗹𝗲𝗲𝗽 𝗔𝗽𝗻𝗲𝗮 Systems
✔ 𝗥𝗲𝗺𝗼𝘁𝗲 Patient Monitoring
✔ 𝗧𝗲𝗹𝗲𝗺𝗲𝗱𝗶𝗰𝗶𝗻𝗲 Platforms
✔ 𝗕𝗟𝗘 / IoT Device Integration
𝗢𝗧𝗛𝗘𝗥 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘
✔ 𝗘-𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 Platforms (Shop, Order, Delivery Systems)
✔ 𝗙𝗶𝗻𝘁𝗲𝗰𝗵 & Payment Apps (Stripe, PayPal, Wallet Systems)
✔ 𝗖𝗵𝗮𝘁 & Real-Time Messaging Apps (Socket, Firebase, XMPP)
✔ 𝗦𝗮𝗮𝗦 Applications & Admin Panels
✔ 𝗟𝗶𝘃𝗲 Streaming & Social Apps
✔ 𝗚𝗣𝗦 Tracking & Delivery Apps
𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗛𝗜𝗥𝗘 𝗠𝗘
✔ 100% Job Success
✔ Top Rated Freelancer
✔ 12+ Years Experience
✔ Strong Healthcare Domain Expertise
✔ Clean, scalable & production-ready code
✔ Fast communication & transparent updates
✔ Dedicated QA process before delivery
✔ Long-term partnership mindset
If you're looking for a developer for 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 apps, 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 platforms, 𝗙𝗶𝗻𝘁𝗲𝗰𝗵 solutions, 𝗖𝗵𝗮𝘁 apps, 𝗜𝗢𝗦, 𝗔𝗻𝗱𝗿𝗼𝗶𝗱, MERN, OR Laravel systems, I can help you build a scalable and production-ready product from idea to launch.
📩 𝗙𝗲𝗲𝗹 𝗳𝗿𝗲𝗲 𝘁𝗼 𝗰𝗼𝗻𝘁𝗮𝗰𝘁 𝗺𝗲 — 𝗹𝗲𝘁'𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗶𝗺𝗽𝗮𝗰𝘁𝗳𝘂𝗹 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿.
$25/hr
100%
Job Success
$60K+ earned
Available now
Offers consultations
Start of list.
End of list.
Top Rated Plus | 100% Job Success | 50+ AI projects delivered
I build production ready AI agents, RAG pipelines and workflow automations that real businesses use daily, not demos or prototypes. My core stack is the Anthropic Claude API and OpenAI API, orchestrated with LangChain and LangGraph, on a Python/FastAPI backend, with n8n or Makecom handling workflow automation.
WHAT I BUILD
RAG knowledge assistants: document ingestion, chunking, embeddings, and semantic search over PDFs, Notion, Google Drive, and SQL data using Pinecone, pgvector, Qdrant, or ChromaDB with grounded, cited answers and guardrails against hallucination
AI agents with tool use: multi step function calling, structured JSON outputs (Pydantic schema enforcement) and human-in-the-loop approval before anything reaches a customer
Workflow automation: email triage and AI drafted replies (Gmail/Outlook), lead qualification and CRM updates (HubSpot, GoHighLevel, Airtable), appointment booking (Calendly, Google Calendar), all wired through n8n, webhooks, and REST APIs with proper error handling and retries
Customer support chatbots on WhatsApp Business API, Telegram, and web (React/Next.js chat UI), with conversation memory and clean escalation to human agents
Voice AI agents for inbound and outbound calls using Vapi, Retell AI, Twilio and ElevenLabs
Claude Code and MCP server integrations for agentic developer workflows
RECENT WORK
Legal AI assistant that answers questions from a private document base and summarizes contracts, with source citations on every answer
WhatsApp support and booking bot for a services business, integrated with their calendar and CRM
Email automation pipeline that classifies incoming mail, drafts replies with Claude for team review (no auto-send) and logs everything to the CRM
RAG powered search and analytics features embedded into an existing SaaS product
HOW I WORK
Every build ships with clean, documented code that a non technical owner or the next developer can maintain, no dependencies on my personal accounts, full handoff of credentials and source. I scope first, deliver a working prototype fast, then harden it for production with testing, logging, and error handling. Clear async communication throughout and I'm available for a retainer after delivery for fixes and improvements.
Tech stack: Python, FastAPI, PostgreSQL + pgvector, Redis, Docker, Supabase, Node.js, React, Next.js, TypeScript | Claude API, OpenAI API, Gemini, Ollama (self-hosted) | LangChain, LangGraph, CrewAI | n8n, Makecom, Zapier | Pinecone, Qdrant, ChromaDB
Message me with a short description of what you're trying to automate or build, and I'll tell you honestly whether it's a fit and how I'd approach it.
$20/hr
86%
Job Success
$10K+ earned
Available now
Offers consultations
Start of list.
End of list.
Most businesses come to me with the same frustration, they have been doing SEO for months, sometimes years, spending money every single month, and the leads are simply not coming in. The rankings are flat, the traffic is not converting, and nobody can explain why.
I can explain why. And more importantly I can fix it.
My name is Aizaz Shahid and I have spent 5 years doing SEO the way it was meant to be done, not publishing blog posts and calling it a strategy, but actually understanding how Google interacts with your website at a technical level and building everything around that foundation.
Most SEO specialists never look at your crawl budget. They do not check how Google is spending its time on your site, whether it is wasting resources on pages that do not matter, whether the discovery to refresh ratio is healthy, or whether Google is even able to render your HTML correctly.
I start there because if Google cannot efficiently crawl and understand your site nothing else matters, not your content, not your backlinks, not your keywords.
Once the foundation is solid I build a content and authority strategy that compounds over time. Every page, every internal link, and every piece of content has a purpose and a place in the architecture. I also help clients get found inside ChatGPT, Perplexity, and Gemini — the AI search platforms that are quietly stealing traffic from Google every single day and where almost none of your competitors are showing up yet.
I have worked with law firms, dental practices, legal funding companies, luxury travel agencies, nightlife concierge brands, mortgage lenders, surgeons, event planners, and local service businesses across the US, UK, Canada, and Australia. My clients include Sorenson Law Firm,
Attorney Capital Funding, Club Bookers, a VIP nightlife concierge across 40+ cities worldwide and Chicago Implant Studio.
I handle technical SEO, on-page optimisation, local SEO, Google Business Profile management, link building, AEO, WordPress development, and Google Ads. Everything under one roof, one point of contact, and one clear focus, generating leads and revenue from organic search.
Nothing goes live without your approval. No chasing me for updates. No vanity metrics in the report. Just a clear monthly breakdown of what was done, what moved, and what is next.
If your SEO is not generating leads something is wrong.
Let me find it.
$10/hr
91%
Job Success
$100K+ earned
Available now
Start of list.
End of list.
Mobile apps rarely fail at launch. They fail when they scale, break, or stop delivering value to users.
***That is where the real work begins***
I work with startups and businesses to build mobile applications that are not just launched, but are stable, scalable, and built to perform under real user demand. From idea to App Store and Google Play, the focus stays on reliability, speed, and long-term usability.
Over the past 10+ years, I have delivered 50+ mobile apps across iOS and Android, covering everything from early-stage MVPs to production-scale platforms used by growing user bases.
🔹Technology Stack:
- Mobile Apps: React Native, iOS (Swift, SwiftUI), Android (Kotlin, Java), Flutter
- AI/ML: ChatGPT, GPT-4o, Claude, RAG, NLP
- Backend: Node.js, Python, Firebase, REST APIs
- Cloud & Database: AWS, Google Cloud, MySQL, MongoDB
- UI/UX Design: Figma, Adobe XD
Important Note: All discussed ideas and project details are protected under a strict NDA.
🏆𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:
- 10+ Years of Experience in mobile app development
- 50+ Successful App Launches on App Store & Google Play
- Fluent English & Client-Verified Communication Skills
- 𝐂𝐥𝐢𝐞𝐧𝐭-𝐅𝐢𝐫𝐬𝐭 Philosophy: Quality, Satisfaction & Long-Term Partnerships
🌐 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐲 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞:-
𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩𝐬: Dating Apps | Taxi Booking | Food Delivery | Health & Fitness | Education | E-commerce | Social Chat Apps | Music | Restaurant Apps
🔹𝐒𝐤𝐢𝐥𝐥𝐬 & 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞:-
- AI & Chatbots: ChatGPT, OpenAI, AI-powered real-time chat
- Backend & APIs: Node.js, Python, Firebase, REST API integration
- Payments & Subscriptions: PayPal, Stripe, Razorpay, Google Pay, Apple Pay, In-App Purchases
- Real-time & Media: Chat, Audio/Video Calls, Live Streaming
- Location Services: Google Maps, Real-time Tracking, Geolocation
- App Deployment: App Store & Play Store
- AI and Chatbot Development: AI-powered chat, ChatGPT, OpenAI, Gemini, Deepseek, Replit, n8n
🔹𝐂𝐎𝐍𝐒𝐔𝐋𝐓𝐀𝐓𝐈𝐎𝐍 –
• The best technology stack
• App architecture & scalability strategies
• Cost & timeline estimates tailored to your needs
• Solutions for API integration, UI/UX, real-time features, and more
Message me now to schedule a consultation!
#MobileAppDeveloper #MobileAppDevelopment #AppDevelopment #iOSAppDevelopment #AndroidAppDevelopment #NativeAppDevelopment #CrossPlatformDevelopment #Flutter #ReactNative #Swift #Kotlin #Java #SwiftUI #AndroidSDK #Dart #APIIntegration #RESTAPIs #BackendDevelopment #Firebase #NodeJS #CloudServices #UIUXDesign #PushNotifications #RealTimeChat #InAppPurchases #PaymentGatewayIntegration #LocationServices #AppStoreDeployment #PlayStoreDeployment #AppOptimization #PerformanceTuning #AIIntegration #ChatGPTAPI #MachineLearningMobile #ARMobileApps #EcommerceApp #SocialAppDevelopment #FinTechMobile #HealthTechApp #OnDemandApps
Associated with
Techwin Labs LLP
$20/hr
99%
Job Success
$100K+ earned
Available now
Start of list.
End of list.
I am a highly skilled Full-Stack Developer with over 10 years of experience in front-end and back-end development, building robust web applications and SaaS platforms using modern technologies including React.js, Node.js, Next.js, TypeScript, Express, and MongoDB, now enhanced with AI-powered features to deliver smarter, more efficient solutions.
🏆 Top Rated Plus (Top 3% on Upwork)
✅ 25,000+ Hours Worked
✅ 250+ Jobs Completed Successfully
✅ 100% Job Success Score
✅ 90% Clients Recommend Working With Me
✅ 86% Long-Term Repeat Clients
✅ Fluent English, Verified
My objective is to deliver high-quality, scalable web applications backed by clear communication and reliable delivery. I manage the full development lifecycle, from planning and architecture to deployment and ongoing support, and I integrate AI capabilities like ChatGPT/LLM-powered features where they genuinely improve the product, not as an add-on for its own sake.
Key Skills:
- Frontend Development: React.js, Next.js, TypeScript, Tailwind CSS, Material UI, JavaScript, HTML/CSS
- Backend Development: Node.js, Express.js, RESTful API Development, GraphQL
- Database Management: MongoDB, MySQL
- AI Integration: ChatGPT/OpenAI API, LLM Integration, RAG, AI Chatbot Development
- Cloud & Deployment: AWS (EC2, Lambda, Lightsail), GCP, Microsoft Azure
- Payment Gateway Integration
- MERN Stack Development
Work Experience:
- Developed and maintained production web applications using React.js, Next.js, TypeScript, and Node.js
- Designed and implemented backend architecture and database solutions supporting high-traffic applications
- Integrated AI features (ChatGPT/LLM-based) into existing SaaS products to improve user experience and automate workflows
- Integrated payment gateways for secure transaction processing
- Deployed and managed applications on AWS with a focus on performance and scalability
Education:
Bachelor of Engineering, Computer Science
Client Testimonials:
"Outstanding experience working with Priyank. He brought an impressive depth of knowledge to the project and helped implement new features seamlessly."
"Priyank's expertise and problem-solving skills were invaluable, and he went above and beyond to ensure everything ran smoothly."
🔍 Keywords:
Full Stack Developer, Web Application Development, SaaS Development, React Developer, Next.js Developer, Node.js Developer, TypeScript Developer, MERN Stack Developer, AI Developer, AI Integration, ChatGPT Integration, OpenAI API, LLM Integration, RAG, API Development, RESTful API, GraphQL, Payment Gateway Integration, AWS Developer
Associated with
Codonnier Solutions
$900K+
earned