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Rohit kumar K.
has worked
.
With 𝟏𝟏+ 𝐲𝐞𝐚𝐫𝐬 experience as a 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, I specialize in designing, developing, and optimizing web solutions that drive business growth. As a 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐅𝐫𝐞𝐞𝐥𝐚𝐧𝐜𝐞𝐫 on Upwork, I have successfully completed 𝟏𝟓𝟎+ 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 for 𝟔𝟎+ 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐠𝐥𝐨𝐛𝐚𝐥𝐥𝐲, delivering scalable, high-performance websites, eCommerce platforms, and API-driven solutions.
Whether you’re a startup, SMB (Small and Medium-sized Business), or an enterprise, I bring the skills, professionalism, and results-driven approach to help you achieve your digital goals.
𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐒𝐞𝐫𝐯𝐞𝐝
▪ Healthcare: HIPAA-compliant platforms for patient management.
▪ E-commerce: Scalable online stores with seamless checkout experiences.
▪ Fintech: Secure financial platforms designed for scalability.
▪ Education: Engaging eLearning platforms and LMS systems.
▪ Hospitality: Custom booking solutions with integrated payment gateways.
𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐘 & 𝐓𝐎𝐎𝐋𝐒 𝐈 𝐔𝐒𝐄
▪ Back-End Development: PHP (Laravel, CodeIgniter), Node.js
▪ Front-End Development: JavaScript (Vue.js, React.js, jQuery), HTML5, CSS3, Bootstrap, Tailwind CSS
▪ Database Management: MySQL, Microsoft SQL Server, MongoDB
▪ CMS & Platforms: WordPress, WooCommerce, Shopify, Squarespace
▪ Version Control: Git, GitHub, Bitbucket
𝐖𝐇𝐀𝐓 𝐈 𝐃𝐎 𝐁𝐄𝐒𝐓
𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 & 𝐖𝐨𝐨𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
Expertise in building and optimizing WordPress-based solutions, from custom themes and plugin development to complex WooCommerce integrations.
▪ Building interactive product comparison tools (like NertWallet's credit card comparison).
▪ Custom WooCommerce search & filter system, allowing users to filter by price, brand, and attributes.
▪ Kelkoo-powered affiliate product comparison, using API integration for real-time pricing.
▪ Multi-site WooCommerce store migration & optimization, ensuring seamless transitions.
𝐂𝐮𝐬𝐭𝐨𝐦 𝐀𝐏𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧
Specialize in API-driven solutions, enhancing functionality and automating business processes.
▪ Amazon API integration for automated product listings and price comparisons.
▪ Multi-user query systems for real-time price tracking across eCommerce platforms.
▪ CRM API integrations (Contact 7, Ninja Forms, Awin, Kelkoo, Google APIs) for seamless data transfer.
▪ HIPAA-Compliant Form
𝐒𝐡𝐨𝐩𝐢𝐟𝐲 & 𝐒𝐪𝐮𝐚𝐫𝐞𝐬𝐩𝐚𝐜𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
I build and enhance custom Shopify and Squarespace solutions for eCommerce businesses, ensuring they rank higher and convert better.
▪ Shopify UI/UX & SEO optimization, improving sales and customer retention.
▪ Custom code injection in Squarespace, allowing advanced design modifications.
▪ Creating high-converting landing pages & pop-ups for lead generation
𝐒𝐞𝐫𝐯𝐞𝐫 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧
I ensure that your website runs fast, stays secure, and remains scalable by optimizing servers and databases.
▪ Managing WordPress migrations & PHP upgrades, ensuring smooth transitions.
𝐖𝐡𝐚𝐭 𝐒𝐞𝐭𝐬 𝐌𝐞 𝐀𝐩𝐚𝐫𝐭?
I don’t just code—I solve problems, streamline workflows, and drive growth. Combining technical expertise with a deep understanding of user behavior and business strategy, I create solutions that not only perform seamlessly but also achieve real, measurable results.
𝐖𝐇𝐘 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄
▪ Custom Solutions: Every project is tailored to your brand’s specific needs.
▪ Collaborative Approach: Clear communication and regular updates to keep you in the loop.
▪ Fast Turnaround: Timely delivery without compromising quality.
▪ Long-Term Support: Comprehensive maintenance, troubleshooting, and optimization services.
▪ Proven Expertise: Over the years, I’ve worked on hundreds of projects, ensuring client satisfaction and lasting results.
𝐂𝐮𝐬𝐭𝐨𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧:
I offer theme customization, tackling challenging tasks such as integrating and customizing subscription apps, optimizing variant displays, and adding unique features like countdown timers, swatches, currency converters, product tabs, and promotional banners. My goal is to enhance user engagement and sales conversion rates.
𝐋𝐞𝐭'𝐬 𝐂𝐨𝐧𝐧𝐞𝐜𝐭!
Ready to take your project to new heights? Hit the '𝐈𝐧𝐯𝐢𝐭𝐞 𝐟𝐨𝐫 𝐉𝐨𝐛' or '𝐌𝐞𝐬𝐬𝐚𝐠𝐞' button.
KEYWORDS:
PHP Laravel Developer | Full-Stack Web Developer | WordPress Expert | WooCommerce / WordPress | WooCommerce Developer | Shopify Developer | Squarespace Developer | Squarespace Website Development | Squarespace expert | Custom Web Development | CMS Development Expert | WordPress Plugin Developer | WordPress Theme Customization | API Integration Expert | Backend Developer | Frontend Developer | Kelkoo, Awin Affiliate API Expert
Associated with
Sivah Technologies
$25/hr
100%
Job Success
$300K+ earned
Available now
Offers consultations
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𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 & 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 8+ 𝗬𝗲𝗮𝗿𝘀 | 𝟭% 𝗼𝗳 𝗨𝗽𝘄𝗼𝗿𝗸 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀.
✅ $300K+ Total earnings
✅8+ Years experience as Fullstack Developer ✅ 80+ Projects Completed. ✅Top Rated Plus.
✅ 100% Job Success Rate. ✅ AWS certified ✅ Python certified ✅50hrs/week available
✅ 4+ AI/ML Integrations
🔴 I am in the 𝗧𝗼𝗽 𝟭% overall on Upwork.
🔴 I am in the 𝗧𝗼𝗽 𝟰% overall on Stack Overflow.
𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 / 𝐕𝐨𝐢𝐜𝐞 𝐀𝐠𝐞𝐧𝐭𝐬: 𝐂𝐫𝐞𝐰𝐀𝐈 / 𝐀𝐮𝐭𝐨𝐆𝐞𝐧 / 𝐀𝐦𝐚𝐳𝐨𝐧 𝐏𝐨𝐥𝐥𝐲 / 𝐃𝐞𝐞𝐩𝐠𝐫𝐚𝐦 / 𝐑𝐚𝐬𝐚 𝐀𝐈 / 𝐑𝐢𝐯𝐞𝐫𝐬𝐢𝐝𝐞 𝐒𝐃𝐊 / 𝐀𝐳𝐮𝐫𝐞 𝐀𝐈 𝐒𝐩𝐞𝐞𝐜𝐡/𝐋𝐋𝐌 𝐅𝐢𝐧𝐞𝐭𝐮𝐧𝐢𝐧𝐠: 𝐔𝐬𝐢𝐧𝐠 𝐏𝐄𝐅𝐓 / 𝐋𝐨𝐑𝐀 / 𝐐𝐋𝐨𝐑𝐀 / 𝐑𝐋𝐇𝐅 / 𝐃𝐏𝐎 / 𝐒𝐅𝐓 𝐰𝐢𝐭𝐡 𝐔𝐧𝐬𝐥𝐨𝐭𝐡 / 𝐀𝐱𝐨𝐥𝐨𝐭𝐥 / 𝐇𝐮𝐠𝐠𝐢𝐧𝐠𝐅𝐚𝐜𝐞 𝐀𝐮𝐭𝐨𝐓𝐫𝐚𝐢𝐧 / 𝐒𝐚𝐠𝐞𝐌𝐚𝐤𝐞𝐫 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠/𝐎𝐩𝐞𝐧-𝐒𝐨𝐮𝐫𝐜𝐞 𝐋𝐋𝐌𝐬: 𝐋𝐋𝐀𝐌𝐀 𝟑 / 𝐌𝐢𝐬𝐭𝐫𝐚𝐥 𝟕𝐁 / 𝐌𝐢𝐱𝐭𝐫𝐚𝐥 𝟖𝐱𝟕𝐁 / 𝐅𝐚𝐥𝐜𝐨𝐧 / 𝐆𝐞𝐦𝐦𝐚 / 𝐁𝐥𝐨𝐨𝐦 / 𝐎𝐫𝐜𝐚 𝐌𝐢𝐧𝐢 / 𝐆𝐮𝐚𝐧𝐚𝐜𝐨/𝐅𝐚𝐬𝐭 𝐈𝐧𝐟𝐞𝐫𝐞𝐧𝐜𝐞: 𝐯𝐋𝐋𝐌 / 𝐓𝐆𝐈 / 𝐓𝐞𝐧𝐬𝐨𝐫𝐑𝐓-𝐋𝐋𝐌 / 𝐒𝐊𝐏𝐢𝐥𝐨𝐭/𝐏𝐫𝐨𝐦𝐩𝐭 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠: 𝐌𝐮𝐥𝐭𝐢-𝐭𝐮𝐫𝐧 / 𝐅𝐞𝐰-𝐬𝐡𝐨𝐭 / 𝐙𝐞𝐫𝐨-𝐬𝐡𝐨𝐭 / 𝐑𝐀𝐆-𝐁𝐚𝐬𝐞𝐝 / 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐚𝐛𝐥𝐞 𝐏𝐢𝐩𝐞𝐥𝐢𝐧𝐞𝐬/𝐐𝐮𝐚𝐧𝐭𝐢𝐳𝐚𝐭𝐢𝐨𝐧: 𝐀𝐖𝐐 / 𝐆𝐏𝐓𝐐 / 𝐆𝐆𝐔𝐅 / 𝐆𝐆𝐌𝐋 / 𝐐𝐋𝐎𝐑𝐀 / 𝐏𝐓𝐐 / 𝐃𝐐/𝐑𝐀𝐆 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: 𝐋𝐚𝐧𝐠𝐂𝐡𝐚𝐢𝐧 / 𝐋𝐥𝐚𝐦𝐚𝐈𝐧𝐝𝐞𝐱 / 𝐂𝐡𝐫𝐨𝐦𝐚 / 𝐅𝐀𝐈𝐒𝐒 / 𝐏𝐢𝐧𝐞𝐜𝐨𝐧𝐞 / 𝐐𝐝𝐫𝐚𝐧𝐭 / 𝐖𝐞𝐚𝐯𝐢𝐚𝐭𝐞 / 𝐌𝐢𝐥𝐯𝐮𝐬
Greetings! I am Atul Kumar, a seasoned developer with over 8+ years of experience in web application and software development.
Working with LLMs for the past 8+ years and have good expertise in AI Agents development using langchain, LlamaIndex, and LLMs like Claude, GPT4o, Amazon Bedrock, Ollama
🔹 AI Agents / Voice Agents: CrewAI, AutoGen, Amazon Polly, Deepgram, Rasa AI
🔹 LLM Fine-tuning: PEFT, LoRA, QLoRA, RLHF, DPO with Unsloth, Axolotl, HuggingFace AutoTrain
🔹 Open-Source LLMs: LLaMA 3, Mistral 7B, Mixtral 8×7B, Falcon, Gemma
🔹 Inference Optimization: vLLM, TGI, TensorRT-LLM
🔹 Prompt Engineering: Multi-turn, Few-shot, Zero-shot, RAG-based prompts
🔹 Quantization: AWQ, GPTQ, GGUF, GGML
🔹 RAG Systems: LangChain, LlamaIndex, ChromaDB, FAISS, Pinecone, Qdrant
🔹 Data Pipeline: Synthetic dataset generation, LLM evaluation frameworks
🔹 LLM Deployment: AWS Sagemaker, RunPod, GCP AI Platform, Vercel AI SDK
🖥️ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗦𝗸𝗶𝗹𝗹𝘀:
🔹 Proficient in Node.js, Express.js, Python, Django, Flask, AWS Lambda for backend API.
🔹 Experienced with relational & NoSQL databases: MySQL, PostgreSQL, MongoDB, Firebase, Firestore.
🔹 Skilled in Python FastAPI, REST API, GraphQL API development, and database schema design.
🔹 Knowledgeable in Redis, Docker, Kubernetes, AWS EC2, S3, Nginx for scalable infrastructure.
🔹 Experienced with Nest.js for enterprise-grade server-side applications.
🔹 LangChain, LangServe, LangSmith, HuggingFace, Transformers for AI/LLM integrations.
🔹 Vector Databases: Chroma, FAISS, Pinecone, Qdrant for RAG pipelines.
🔹 Low-code AI tools: Flowise AI, LangFlow, StackAI for rapid prototyping.
🔹 Familiar with Celery task queues, testing frameworks (Pytest, Unittest), and automation tools like Selenium.
🌐 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗦𝗸𝗶𝗹𝗹𝘀:
🔹 Proficient in TypeScript, Redux Toolkit, Tailwind CSS with Next.js for high-performance frontends.
🔹 Skilled in building Progressive Web Apps (PWA) and Single Page Applications (SPA).
🔹 Expert in Vue.js, Nuxt.js, React.js, Next.js, HTML5, CSS3, React Native for responsive and cross-platform UIs.
🛠️ 𝗧𝗼𝗼𝗹𝘀 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀:
🔹 Skilled in Python ML libraries: Scikit-learn, Numpy, Pandas, Matplotlib, Seaborn.
🔹 Familiar with OpenAI APIs, Whisper, GPT models, ChatGPT integration, and AI chatbot deployment.
🔹 Experienced with AWS (Lambda, S3, EC2, Sagemaker), Git/GitHub, and Linux environments (Ubuntu, CentOS).
🌟 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗔𝗜 & 𝗟𝗟𝗠 𝗦𝗸𝗶𝗹𝗹𝘀:
🔹 AI Agents / Voice Assistants: CrewAI, AutoGen, Amazon Polly, Deepgram, Rasa AI.
🔹 Open-Source LLMs: LLaMA 3, Mistral 7B, Mixtral 8×7B, Falcon, Gemma.
🔹 Inference Optimization: vLLM, TGI, TensorRT-LLM for high-speed deployments.
🔹 Prompt Engineering: Multi-turn, Few-shot, Zero-shot, RAG-based prompts.
🔹 Quantization: AWQ, GPTQ, GGUF, GGML for efficient LLM deployment.
🔹 LLM Fine-tuning: PEFT, LoRA, QLoRA, RLHF, DPO with Unsloth, Axolotl, H
My expertise spans both frontend and backend technologies, as well as a variety of tools and additional skills that enable me to deliver comprehensive solutions.
I am dedicated to providing high-quality, efficient solutions that cater to the unique needs of each project. My diverse skill set allows me to approach challenges from multiple angles, ensuring robust and innovative solutions.
Warm regards,
Atul Kumar
Associated with
Excellence Technosoft Pvt Ltd
$1M+
earned
$12/hr
100%
Job Success
$3K+ earned
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Ankit K.
has worked
.
Most full-stack developers can build you a web app. Not many have shipped a satellite imagery search platform with live polygon drawing, KML/KMZ processing, and coordinate-based filtering I have.
In 8 years of freelance work, I have built systems that handle genuinely hard problems: geospatial data platforms, n8n workflow automation that cuts hours of manual work down to minutes and AI integrations that actually hold context. My clients tend to come back not because I am cheap but because I ask the right questions before writing a single line of code.
What I build:
Full-stack web platforms: Laravel, PHP, Node.js, React, Angular, Vue.js
Geospatial & mapping tools: CesiumJS, KML/KMZ, polygon search, coordinate systems
SaaS products: Food truck management platforms, dating sites, subscription-based apps
Document workflows: PDF e-signature systems with drag-and-drop form fields, multi-party signing, and signed PDF return
WordPress: Theme setup, customization, deployment, and custom calculator plugins
CMS & E-commerce: Shopify, Magento, WooCommerce
API & Payment integrations: HubSpot, Stripe, Slack, Google Drive, OpenAI, OpenPath
What I build:
Complex web platforms: Laravel, React, Angular, Vue
Geospatial & mapping tool: CesiumJS, KML/KMZ, polygon search, coordinate systems
Workflow automation: HubSpot, Slack, Google Drive, Stripe, OpenAI integrations
Access control & IoT: OpenPath API, real-time monitoring systems
Mobile & CMS: Shopify, WordPress, hybrid app development
Projects worth mentioning:
→ Satellite imagery search platform with interactive drawing tools and vendor imagery grouping (CesiumJS + React)
→ Document e-signature platform: parties upload PDFs, drop form fields on pages, sign remotely, and receive countersigned PDFs back automatically
→ Food truck SaaS: full platform built from concept to deployment
→ Automated invoice scheduling connecting HubSpot + Younium: eliminated manual finance data entry entirely
→ Context-aware chatbot using OpenAI API: answers questions, not just keywords
→ n8n automation flows: Lead capture to CRM sync, automated reporting pipelines, and webhook-driven notifications cutting repetitive operations to zero-touch
→ Context-aware chatbot using OpenAI API: answers questions, not just keywords
I use Jira and Slack, Basecamp to communicate proactively and I don't disappear after deployment. I write code the next developer won't curse at.
If you are building something complex and need one developer to take it from whiteboard to deployment let's talk.
$65/hr
100%
Job Success
Available now
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I help teams turn complex technical systems into clear, structured content. My work includes technical articles, developer documentation, SaaS/product content, and tutorials that make APIs, identity systems, security topics, backend architectures, and other software challenges understandable to real-world users and developers.
With a background in software engineering, I bring practical development experience to every writing, editing, and review project. I also leverage this background to perform detailed source code reviews and technical audits, combining a developer’s understanding of software systems with an editor’s eye for structure, clarity, consistency, and detail.
I can also help teams design practical AI workflows for content operations, productivity, software development support, information organization, and lightweight automation. Such workflows improve real work without sacrificing accuracy or judgment.
How I Can Help You...
💡 Clear, High-Impact Technical Writing and Developmental Editing
✔ Technical Articles / Tutorials / Explainers: I write clear, accurate articles on software development, security, or other technical topics so readers of any background actually understand them.
✔ Technical Documentation & API Guides: I create developer-friendly documentation, reference material, and API guides that help teams onboard faster and reduce support effort.
✔ Editing & Review: I can proofread your existing documents or content for clarity, consistency, and professional tone while maintaining technical accuracy. Technical editing, developmental editing, and copy editing as well.
✔ Process Documentation: I can document workflows, SOPs, and internal processes so that complex tasks become repeatable and easy to teach or train.
✔ Knowledge Base & SaaS Platform Support: I can build and maintain published content in knowledge base or SaaS environments, using tools such as Markdown, Git, and Confluence.
✔ Developer-Centered, Code-Forward Technical Content (what some call ‘dark mode’ writing): I can focus on real implementation details, architecture, SQL, APIs, and system behavior rather than high-level marketing language when required by the client.
✔ Lifestyle Articles / Product Roundups: I create informative and accessible lifestyle content and product roundups, for tech and other products.
✔ Graphic Design Support for Technical, Educational, and Marketing Assets: I can provide layout and light graphic design assistance for materials using Canva, InDesign, Photoshop, or Illustrator.
💡 Practical AI Workflows and Productivity
✔ AI Workflow Design: I can design practical AI-assisted workflows for content operations, research organization, documentation, task planning, and software-related knowledge work. Some preferred tools include ChatGPT, Claude, Gemini, AI coding assistants such as Claude Code, and automation platforms like Zapier. This list continues to evolve.
✔ Productivity and Lightweight Automation: I can help teams identify where AI tools and simple automation can reduce friction, make recurring work more repeatable, thus increasing productivity.
✔ Responsible Implementation: I focus on workflows that preserve accuracy, privacy, and human control — always with an emphasis on practical use rather than novelty.
💡 Structured Learning & Developer Training
✔ Educational Content & Courseware: I create tutorials, lessons, and learning materials for topics such as C#, OOP, mathematics, software development, and more. I also develop long-form projects — textbooks, self-study guides, and continuing-education courseware — ensuring technical accuracy and approachable learning. I work in Markdown/Git (docs-as-code) and can provide LaTeX layouts or short instructional videos when needed.
💡 Source Code Review & Software Engineering
✔ Code Review & Assessment Writing: I can review/audit your source code, then prepare artifacts, including code-review reports, mentoring notes, and best-practice recommendations that help developers improve structure and performance. Platforms include .NET, C#, C, C++, PHP, Node.js, Vue.js, Next.js, and others.
✔Software Engineering: .NET/C# development, specializing in REST APIs and utilities with a focus on performance optimization, security, and database design. Also proficient with C, C++, PHP, Node.js, Vue.js, Next.js, and others.
💡 Why Work With Me?
✅ Technical Depth: With many years in technical writing and software engineering, I understand the systems I document as well as the courseware I create. I ensure accuracy in every detail.
✅ Clarity, Engagement, & Usability: My writing and analysis emphasize readability and learning, helping both technical teams and non-technical stakeholders succeed.
✅ Trusted Experience: My track record spans decades of professional work, both on and off Upwork, with clients who value my ability to deliver clear, accurate, and dependable results.
📌 Let’s discuss how I can help with your project. Message me to schedule a call!
$18/hr
100%
Job Success
$200K+ earned
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🏆 𝗧𝗼𝗽-𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝟭𝟬+ 𝗬𝗲𝗮𝗿𝘀 | 𝗟𝗮𝗿𝗮𝘃𝗲𝗹 | 𝗦𝗮𝗮𝗦, 𝗖𝗥𝗠, 𝗘𝗥𝗣 | 𝗔𝗣𝗜 𝗕𝗮𝗰𝗸𝗲𝗻𝗱𝘀, 𝗔𝗜 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻
I'm Ashish, a senior full-stack developer with 10+ years building SaaS platforms, CRMs, and custom operational dashboards for businesses that need their data actually working for them, not just sitting in disconnected tools.
Most of my work comes down to one problem: businesses running on systems that don't talk to each other, or legacy code that's holding growth back. I fix that.
What I actually do:
- Build custom CRM, ERP, and SaaS platforms in Laravel, from multi-tenant architecture to role-based dashboards
- Handle data integration work most developers avoid, webhook ingestion, reconciliation against unreliable sources, syncing systems with no clean API
- Migrate legacy PHP applications to modern Laravel, without breaking what already works
- Build API backends and automation, REST, GraphQL, Stripe, Twilio, WhatsApp, Zapier
- Integrate AI features into real workflows using OpenAI's API, not bolted-on demos
- Fix and optimize existing Laravel apps, performance issues, bugs, feature gaps
Some outcomes from recent work: automated 70% of a client's manual workflow through a custom CRM build, built SaaS dashboards handling 10,000+ monthly users, and saved clients 30+ hours a week through API and automation work.
Stack: React, Vue.js, Laravel, PHP, MySQL, PostgreSQL, MongoDB, AWS, Firebase, Stripe, Twilio, WhatsApp API, OpenAI API.
If you're dealing with a system that doesn't sync properly, a legacy app that's slowing you down, or a product you need built right the first time, tell me what you're working with and I'll tell you honestly what it'll take.
Associated with
UcodeSoft Solutions Private Limited
$2M+
earned
$25/hr
100%
Job Success
$90K+ earned
Available now
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Faizan U.
has worked
.
Hi, I’m Faizan – a Full-Stack Web, Mobile & AI Automation Developer with 10+ years of experience delivering scalable systems, mobile apps, SaaS platforms, and AI chatbot solutions using modern technologies.
I work with Laravel, Node.js, React Native, MERN, OpenAI, LangChain, n8n, Make, and Python-based LLM systems to build efficient, high-quality products that scale smoothly.
🌟 What I Do Best 🌟
AI & Automation
✅ OpenAI, LangChain, LibreChat, custom LLM chatbots
✅ n8n, Make, Zapier automations
✅ Data pipelines, workflow automation, RAG systems
Web Development
✅ Laravel, Node.js, Express.js, Nest.js
✅ MERN Stack (MongoDB, Express, React, Node)
✅ Scalable REST APIs + Microservices
✅ SaaS platforms with subscription models
Mobile App Development
✅ React Native (primary)
✅ Kotlin, Swift, Flutter
✅ Fast, secure, user-friendly cross-platform apps
Cloud & DevOps
✅ AWS, Azure, GCP
✅ CI/CD, deployments, optimization
✅ Secure & scalable architecture
🌟 Skills & Technologies 🌟
Frontend: React, React Native, HTML, CSS, Tailwind, Bootstrap
Backend: Laravel, Node.js, Express, Nest.js
Mobile: React Native, Swift, Kotlin, Flutter
Database: PostgreSQL, MySQL, MongoDB
Automation: n8n, Make, Zapier
AI: OpenAI, Python, LangChain, RAG
Integrations: Payments, CRMs, custom APIs
🌟 Why Choose Me Over Other Freelancers 🌟
📱 Expert Mobile App Development:
Over 10 years building high-performance Android & iOS apps.
🌐 Full-Stack Proficiency:
Frontend + backend + mobile — seamless integrations.
🛠 Technological Mastery:
React Native, Java, Kotlin, Swift, SwiftUI, NodeJS, Laravel, AWS.
🚀 Proven Track Record:
Delivered 50+ successful web & mobile applications, exceeding expectations.
🎯 Client-Centric Approach:
I focus deeply on understanding your requirements and delivering exactly what you need.
💬 Excellent Communication:
Strong English + clear communication throughout the project.
🕒 Timely Delivery:
I deliver high-quality work within agreed timelines.
💼 Professionalism:
Transparent, reliable, and easy to work with.
🔍 Detail-Oriented:
Clean, bug-free, optimized code with smooth UI/UX.
🌟 Continual Improvement:
I stay updated with modern technologies to provide cutting-edge solutions.
If you’re looking for a dedicated full-stack developer who can build web apps, mobile apps, AI chatbots, automation workflows, and scalable backend systems, I’d love to help.
Let’s build something amazing together! 🚀💻📱
$65/hr
97%
Job Success
$70K+ earned
Available now
Offers consultations
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Mujtaba S.
has worked
.
⭐ Top Rated Plus | Top 3% on Upwork | 100% Job Success
✅ 10+ years building SaaS and AI products | 100+ projects delivered | $70K+ earned
✅ AI that ships: Voice AI, RAG, AI agents, MCP, LLM integration
✅ Full stack: Next.js, React, TypeScript, Python, Node.js, PostgreSQL, AWS
I build AI voice agents and workflow automation that answer calls, book appointments, qualify leads, and log everything to your CRM, wired into your real systems. I also ship full-stack AI SaaS and MVPs end to end.
Need AI added to your app, a workflow automated, or an MVP finished?
I scope it, build it, and ship it, without overcomplicating the first milestone.
𝐓𝐡𝐞 𝐩𝐚𝐫𝐭 𝐦𝐨𝐬𝐭 𝐀𝐈 𝐟𝐫𝐞𝐞𝐥𝐚𝐧𝐜𝐞𝐫𝐬 𝐬𝐤𝐢𝐩: AI is rarely the whole product. It usually needs a backend, dashboard, auth, billing, permissions, logs, human review, and deployment around it. I build the AI layer and the product around it.
WHAT I DO:
- Voice AI: Agents that answer calls, book appointments, qualify leads, recover missed calls, and log to your CRM
- (Vapi, Retell, ElevenLabs, Deepgram, OpenAI Realtime, Twilio)
- Workflow automation: Follow-ups, data entry, reporting, and document handling and API integrations
- AI SaaS & MVP builds: Idea to deployed product with auth, billing, dashboards, and the AI layer ready to hand off
- AI inside existing products: RAG, agents, MCP, LLM features, and document AI added to what you already run
- RAG & document AI: Source grounded answers, OCR, extraction, citations, and human review queues
- Rescue & ship: Half-built MVPs refactored, hardened, and launched
RECENT DELIVERIES:
- AI voice agents for healthcare and sales, answering real calls daily
- AI sales CRM: Call transcription, follow-up automation, multi-tenant pipelines
- RAG document platform with every answer cited to source
- AI financial intelligence platform: open banking + accounting sync into one ledger
- Turnkey B2B SaaS platform for the construction industry, end to end
HOW I WORK:
- I start by understanding the workflow, users, data, and business goal
- I suggest the smallest useful first milestone, so cost and timeline are clear before code
- I can take a focused task, a prototype, a rescue, or a full product build
- I work full time on Upwork with overlap for US and European business hours (0–4 hr response)
TECH STACK
AI & LLM: OpenAI, Claude, Gemini, LangChain, LangGraph, CrewAI, MCP, function calling, model routing
RAG & vector search: RAG pipelines, embeddings, semantic search, pgvector, Pinecone, document AI, OCR
Voice AI: Vapi, Retell, ElevenLabs, Deepgram, OpenAI Realtime, Twilio
Agents & Automation: Multi-agent systems, AI copilots, workflow automation, document extraction with review queues
Frontend: Next.js, React, TypeScript, Tailwind, React Native
Backend: Node.js, Python, FastAPI, REST & GraphQL, WebSockets
Data: PostgreSQL, Supabase, Redis, MongoDB
SaaS: Multi-tenant, RBAC, Stripe billing, admin dashboards
Cloud/DevOps: AWS, Docker, Vercel, CI/CD, monitoring
Security/compliance: OAuth2, JWT, audit logs, HIPAA-aware builds, KYC/AML
Integrations: Stripe, Plaid, open banking, QuickBooks, Xero, Twilio, CRMs, ERPs
Send me a short description of what you have and what you want it to do. I’ll reply with the clearest next step, the likely scope, and the first milestone I’d recommend.
Associated with
Aiovix
$2K+
earned
United States
$65/hr
$80K+ earned
Available now
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Brian S.
has worked
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US based digital nomad helping businesses and people where I can.
I specialize in React, Python and Databricks Solutions.
Rates may vary
$45/hr
100%
Job Success
$3K+ earned
Available now
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Youssef B.
has worked
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I build automation systems and custom Python tools that replace manual work your team is tired of doing.
My edge over most developers: I reverse-engineer private website APIs. When a site blocks standard scrapers or has no public API, I dig into the network traffic, find where the real data lives, and build a reliable pipeline on top of it. That's not something you can replicate with Zapier.
Here's what that looks like in practice:
I reverse-engineered the private APIs behind Facebook Marketplace and EIN Presswire's media directory (no credentials needed), then built clean data tools on both. I built a Django + React dashboard that lets non-technical users manage dozens of content bots from one screen. I also published pydantic-gsheets, an open-source Python library with full docs and tests.
Day-to-day I work with Python, Node, FastAPI, Django, n8n, Windmill, Make, and AI APIs (Claude, OpenAI). The through-line is the same: your team describes the manual process, I automate it, and it runs on a schedule without anyone touching it.
If that sounds like something you need, shoot me the task. I'll record a short Loom walking through exactly how I'd build it.
Youssef Benhammouda
AI Automation | Python | API Reverse Engineering | HAR Analysis | Windmill | n8n | Make | FastAPI | Django | Playwright | OpenAI | Claude | ETL
$20/hr
100%
Job Success
$200K+ earned
Available now
Offers consultations
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Adnan J.
has worked
.
Hi, I’m Adnan Jamil – a senior full-stack JavaScript developer with over 15 years of experience in building high-performing, scalable, and modern web and mobile applications.
I specialize in JavaScript-based stacks like MERN, PERN, and Next.js, and I’ve worked with companies of all sizes — from early-stage startups to enterprise-level platforms.
💻 𝗧𝗲𝗰𝗵 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲:
-- Frontend: React.js, Next.js, JavaScript (ES6+), TypeScript
-- Backend: Node.js, Express.js, Nest.js
-- Stacks: MERN (MongoDB, Express, React, Node), PERN (PostgreSQL, Express, React, Node)
-- Databases: MongoDB, PostgreSQL, MySQL
-- AI Integration: GPT, OpenAI APIs, Custom ML logic, NLP, Video & Speech Analytics
-- APIs & Integration: REST APIs, GraphQL, 3rd Party APIs, Webhooks
𝗜 𝗳𝗼𝗰𝘂𝘀 𝗼𝗻 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴:
-- 🧠 AI-powered applications (chatbots, analytics tools, smart automation)
-- ⚙️ Custom web platforms (SaaS, Dashboards, ERPs, CRMs)
-- 📱 Responsive frontends with React.js & Next.js
-- 🔐 Secure, scalable backends with Node.js, Nest.js, and Express.js
✅ 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲?
-- 15+ years of real-world experience
-- I write clean, maintainable, and testable code
-- Strong understanding of both frontend UX and backend architecture
-- Quick communication, consistent progress updates
-- Ability to scale: I handle solo projects or bring in trusted support for larger builds
🔍 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜’𝘃𝗲 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗜𝗻:
-- HealthTech
-- Travel & Tourism
-- Retail & E-commerce
-- Transportation & Logistics
-- Hospitality
-- FinTech
-- Education
-- Manufacturing
-- Compliance & Regulatory Platforms
💬 𝗟𝗲𝘁'𝘀 𝗧𝗮𝗹𝗸
If you're looking for a pro-level full-stack developer who understands business logic, architecture, and future-proof tech — I'm here to help.
📅 Let’s schedule a quick discovery call to explore how I can bring your idea to life.
Associated with
VirtueNetz