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$110/hr
100%
Job Success
$90K+ earned
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I'm a FileMaker Developer and Claris Partner with fifteen years of database development experience. I've worked with systems of all shapes and sizes, from single-user hobby applications to multi-server enterprise applications used by 300+ employees. I love solving problems and I'm looking forward to working with you!
$15/hr
95%
Job Success
Available now
Offers consultations
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I am a Senior Full Stack Next.js & AI Developer with 11+ years of experience building scalable, high-performance, and production-ready web applications for startups, SaaS companies, and enterprise businesses.
I specialize in modern JavaScript development using Next.js, React, Node.js, and TypeScript, focusing on building full stack applications that are fast, secure, and scalable. My expertise includes MERN stack development, SaaS architecture, REST APIs, and AI-powered web applications.
My goal is to turn ideas into real, working digital products by combining strong system design, clean coding practices, and modern cloud technologies.
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CORE EXPERTISE
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I focus on building systems that are scalable, maintainable, and optimized for real-world business use.
• Full Stack Next.js development (SSR, SSG, SEO optimized apps)
• React.js frontend development with modern architecture
• Node.js and Express.js backend systems
• MERN stack application development
• TypeScript-based scalable applications
• REST API and GraphQL API development
• SaaS application architecture and development
• AI-powered application development using OpenAI
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AI & OPENAI DEVELOPMENT
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I build AI-driven applications using OpenAI and modern LLM technologies. I help businesses integrate AI into real products, not just prototypes.
• ChatGPT integration into web applications
• AI SaaS platforms and automation tools
• AI chatbots and virtual assistants
• Workflow automation using AI models
• AI-powered dashboards and analytics systems
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FULL STACK DEVELOPMENT
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Frontend:
• Next.js
• React.js
• TypeScript
• Tailwind CSS
• Material UI
Backend:
• Node.js
• Express.js
• Authentication (JWT, OAuth)
• WebSockets for real-time apps
• API development and integration
Databases:
• MongoDB
• PostgreSQL
• Firebase
• Redis
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SAAS & PRODUCT DEVELOPMENT
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I build scalable SaaS platforms with multi-user architecture, subscription systems, and API-driven backend systems.
• SaaS application development
• Multi-tenant architecture design
• Subscription and payment integration
• Admin dashboards and analytics systems
• Cloud-based deployment systems
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CLOUD & DEPLOYMENT
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• AWS (EC2, S3, Lambda)
• Vercel deployment for Next.js
• Docker containerization
• CI/CD pipelines
• Linux server management
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PROJECT EXPERIENCE
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I have delivered a wide range of applications including:
• SaaS platforms
• AI-powered applications
• CRM and ERP systems
• E-commerce applications
• Healthcare systems
• Real estate platforms
• GPS tracking systems
• Job portals
• Analytics dashboards
• Custom enterprise systems
Each project is built with scalability, performance, and security as core principles.
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WHY CLIENTS WORK WITH ME
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• 9+ years of professional full stack experience
• Strong expertise in Next.js, React, Node.js, and MERN stack
• Deep understanding of SaaS and AI application architecture
• Clean, scalable, and production-ready code
• Strong communication and problem-solving ability
• Focus on business outcomes and product success
• Experience working with startups and enterprise teams
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WHAT I CAN HELP YOU BUILD
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• Full Stack Next.js applications
• MERN stack web applications
• SaaS platforms with scalable architecture
• AI-powered applications using OpenAI
• Custom dashboards and admin panels
• REST API and backend systems
• Real-time web applications
• Cloud-based scalable platforms
If you are looking for a Full Stack Next.js & AI Developer to build scalable SaaS applications and modern web platforms, feel free to connect.
Thanks
Mandeep
mandeep K.
has worked
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Associated with
Esferasoft Solutions Pvt Ltd | Top Rated Plus Agency
Czech Republic
$50/hr
100%
Job Success
Available now
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I am a software engineer with 14 years of software development experience.
I am experienced in web and cross-platform OS development using JavaScript, TypeScript, Rust, Python, C#, Kotlin, Java, Swift, Go, and AWS services. I have been working in enterprise software for Fortune 400, gas and oil conglomerates, and tiny startups. I have also designed and developed systems that are running under load using combinations of different runtimes and environments. Starting from Tauri and finishing GraalVM.
When working on a new project, my main priority is to make sure that your needs are met and the problems are solved.
Thank you in advance for your time and consideration.
I look forward to working with you soon.
Associated with
Pinely 🇪🇺 Your Tech Partners
$30/hr
95%
Job Success
$200K+ earned
Available now
Offers consultations
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Dear Startup Founder,
I understand
Startup is like jumping off the cliff and then building a parachute before you hit the ground
It is challenging and not everyone's cup of tea
I know you are worried about risking your hard-earned money on a product that you think can change the WORLD we breath in
Anxious, anguish, tossing and turning in your bed at 3 AM
And to take it one step further
You are being handicapped and throat grabbed by a zillion of directions and scepticism
OMG!
Is the new idea big enough to matter?
Can I leanly test it and quickly find out if it's viable?
What problems can I solve that my competition cannot?
What's the opportunity cost?
How can I measure success—and failure?
.....
Ugh!!!! and list goes on disrupting your neocortex and limbic cells!
BUT
“The people who are crazy enough to think they can change the world are the ones who do.” - No Surprises!
Now Look, Dear Startup Founder,
Are you also the one with a bad case of shiny object syndrome?
Falling in love with the idea of creating a new product and beginning work on developing it, but with no long-term game plan on how to follow through on that idea?
And half way through you wanna see yourself finding a problem to a solution rather than a solution to a problem?
yet another entry to FAILED STARTUPS LIST - No surprises!
A little bit of this ... and a little bit of that is never going to hit the BULLS EYE! Read it 10X and loud! FULL STOP!
But this is not about me ... it's about YOU!
You are reading this right now because, in some way or shape, or form, your baby startup isn't where you want to be
Without shadow of doubt you put in a herculean amount of effort...
Jolting, scratching, hustling and bleeding your face off to reach here
Or may be you are flying...and simply want more.
More MONEY 💰
More FREEDOM 🙌🏻
More accomplishments
More Impact
More Empowerment
More Security
More Memories
More time with your family
More business class flight with your LOVE to places that result in more sand between your toes ❤️
Whatever MORE meant to you...
I've got good news for you...
I am the PARACHUTE to your startup risks and adventure
Cause soon you will be feeling like...
"FINALLY, I saw my dream startup becoming a REALITY"
No Prayers, No Hope, No Fate, No Written Destiny
I believe in making it happen at ANY COST - I believe in knocking it out of the PARK! Straight Away!
Imagine your life being a movie, and you being the hero! Let's DO IT together.
⭐️ Starting with FREE: 1-1 consultation & FREE Visual Design of your new PRODUCT
𝐑𝐞𝐬𝐮𝐥𝐭𝐬 𝐦𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐚𝐫𝐞 𝐠𝐞𝐭𝐭𝐢𝐧𝐠:
---------
- Soul for gyms: 𝗦𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗲𝘅𝗶𝘁: 𝟮𝟬𝟬% 𝗽𝗿𝗼𝗳𝗶𝘁
- Cricflex: 𝟯𝟬𝟬𝗞+ 𝗨𝗦𝗗 𝗥𝗮𝗶𝘀𝗲𝗱, 𝗡𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗦𝘁𝗮𝗿𝘁𝘂𝗽 𝗖𝘂𝗽 𝗪𝗶𝗻𝗻𝗲𝗿
- Nattyfit: 𝗦𝗮𝘃𝗲𝗱 𝟒𝟬% 𝗼𝗳 𝘁𝗵𝗲 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗰𝗼𝘀𝘁 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐌𝐘 𝐌𝐀𝐆𝐈𝐂 𝐏𝐈𝐋𝐋 𝐒𝐓𝐑𝐀𝐓𝐄𝐆𝐘
𝗪𝗲 𝗺𝗮𝘆 𝗯𝗲 𝗮 𝗴𝗿𝗲𝗮𝘁 𝗳𝗶𝘁 𝗶𝗳 𝘆𝗼𝘂 𝗮𝗿𝗲 𝘁𝗵𝗶𝗻𝗸𝗶𝗻𝗴:
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🔑 I need to develop quality software for my business, delivered on time and within my budget
🔑 I am not able to find someone who pays deep attention to details with great communication skills
🔑 I need to know whether my business idea is going to work or not
🔑 I need someone keen to engage in a long-term business relation
𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗺𝗲, 𝘆𝗼𝘂 𝘄𝗶𝗹𝗹:
---------
🎉 STOP STRUGGLING with getting things done the way you want
🎉 INCREASE your chances of success and hit the bull’s eye with your promising idea
🎉 SAVE COSTS & TIME by following THE MAGIC PILL strategy: “BUILD, MEASURE & LEARN” Cycle
🎉 Get FREE OF COST design work
In my 7+ years of development career, every single client I have worked with has come to the conclusion that I deserve fair and square 5.0 ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ stars feedback! They can't be all wrong I guess, can they? I'm here to overdeliver and WOW my clients, I've always done that and that’s what I will always do.
𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗜 𝘂𝘀𝗲:
---------
✅ Platforms: Android and iOS
✅ Cloud services: AWS and GCP
✅ APIs: REST APIs and GraphQL
✅ Databases: MySQL, PostgreSQL, SQLite, Firebase, MongoDB
✅ Front End: HTML, CSS, Bootstrap, JavaScript, React/React Native, Redux, Vue, Swift
✅ Backend: PHP, Laravel, Node.js, TypeScript, Python/Django, Elixir, Java, Parse, Express
✅ Startup approaches: Lean Startup
𝗛𝗲𝗿𝗲 𝗮𝗿𝗲 𝘀𝗼𝗺𝗲 𝗼𝗳 𝗺𝘆 𝘀𝘁𝗮𝘁𝘀:
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✅ 7+ years of experience
✅ TOP 3% of Upwork – TOP RATED PLUS
✅ 100% Job Success Score
✅ ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ reviews on all projects
✅ Worked on 60+ projects
✅ Raised 30000 USD for my startup in 2018
✅ Raised 100000 USD for my company in 2021
✅ Founder Institute Certified
𝗦𝗢𝗨𝗡𝗗 𝗟𝗜𝗞𝗘 𝗔 𝗙𝗜𝗧? 𝗡𝗘𝗫𝗧 𝗦𝗧𝗘𝗣𝗦:
Click the green ‘Invite to Job’ button in the top right-hand corner, send me a message, and let’s organize a call!
$16/hr
100%
Job Success
$100K+ earned
Available now
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𝟏𝟐+ 𝐘𝐞𝐚𝐫𝐬 | 𝟏𝟎𝟎𝐊+ 𝐄𝐚𝐫𝐧𝐞𝐝 | 𝟒𝟑𝟓𝟓 𝐔𝐩𝐰𝐨𝐫𝐤 𝐇𝐨𝐮𝐫𝐬 & 𝐒𝐭𝐢𝐥𝐥 𝐜𝐨𝐮𝐧𝐭𝐢𝐧𝐠 𝐈 𝟏𝟎𝟎% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧
I combine product thinking, modern UI/UX, and clean engineering to build applications users love and businesses rely on. With 12+ years of experience, I deliver scalable SaaS, marketplace, and mobile solutions that perform in the real world.
𝐁𝐞𝐧𝐞𝐟𝐢𝐭𝐬 𝐨𝐟 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞:
✔12+ Years of Proven Industry Experience
✔Strong Communication & Client Collaboration
✔Fast Turnarounds Without Sacrificing Quality
✔Full Lifecycle Development – From Idea to Launch
✔Long-Term Support & Maintenance
𝐖𝐄𝐁 & 𝐀𝐈 𝐀𝐏𝐏 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓:
🔹 𝐅𝐫𝐨𝐧𝐭-𝐄𝐧𝐝 & 𝐔𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠
✔React | Next | Vue | Tailwind CSS | Bootstrap | Responsive & Performance-Optimized UI
🔹 𝐁𝐚𝐜𝐤-𝐄𝐧𝐝, 𝐀𝐏𝐈𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬
✔Node.js | Express.js | Python | Django | FastAPI | PHP
✔RESTful APIs | GraphQL | WebSockets | Secure & Scalable Architecture
🔹 𝐀𝐈, 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 & 𝐋𝐋𝐌 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬
✔ Chatbot Development (AI & Rule-Based)
✔Machine Learning Models & Pipelines
✔Model Training & Deployment
✔LLM Integration (OpenAI, LangChain)
✔AI Automation & Intelligent Workflows
✔Custom AI-Powered Web Applications
🔹 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬, 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬
✔MongoDB | PostgreSQL | MySQL | Firebase
✔Vector Databases (Pinecone, FAISS)
✔AWS | Docker | CI/CD Pipelines
✔Vercel | Heroku | Scalable Cloud Hosting
🔹 𝐀𝐈 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠 & 𝐌𝐨𝐝𝐮𝐥𝐞𝐬
✔Custom AI Training Modules
✔Model Fine-Tuning
✔Data Processing & Feature Engineering
✔MLOps & Production-Ready AI Systems
🔹 𝐊𝐞𝐲 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬:
Authentication & Authorization
Stripe, Razorpay, PayPal Integration
Dashboards, CRM, CMS, SaaS Platforms
Scalable Backends & DevOps Pipelines
Clean, maintainable, and well-documented code
𝐒𝐄𝐑𝐕𝐈𝐂𝐄𝐒 𝐈 𝐎𝐅𝐅𝐄𝐑:
Custom Website Design & Development
Mobile App Development (iOS & Android)
eCommerce Development (Shopify, WooCommerce, Custom)
Complete Website Redesigns
Web & App Maintenance & Support
Landing Pages & Conversion Optimization
Consulting & MVP Planning
Full-Stack Web + App Development
If you are looking for a reliable developer who can transform your ideas into high-performing digital solutions, I’d love to hear about your project. I am here not just to deliver code, but to become a trusted tech partner in your success.
Message me with your project brief and I'll respond within 24 hours with a scoped plan!
Associated with
Richest soft
$1M+
earned
$22/hr
100%
Job Success
$100K+ earned
Available now
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Hello,
I am a Web Security Specialist with strong hands-on experience in penetration testing, vulnerability management, and web infrastructure security, focused on real-world attack scenarios and measurable business impact.
I have extensive experience conducting penetration tests across organizational assets, performing in-depth vulnerability analysis and security assessments, and delivering results with an attacker mindset combined with consultant-level reporting. My goal is not just to identify issues, but to help you secure your systems effectively and sustainably.
I can perform comprehensive security audits, implement industry-standard security controls, configure file and folder permissions, harden server and application settings, and apply best-practice security rules (including web server and access controls) to significantly reduce your attack surface.
In addition, I bring 10+ years of experience working with hosting environments, including hands-on work with Linux servers and web infrastructure, with a strong emphasis on web security, incident response, and post-breach analysis, including:
Malware identification and complete website cleanup
Mobile Application Penetration Testing
Investigation of compromised websites to determine attack vectors
Identification of security weaknesses in web applications and hosting configurations
Hardening of servers, CMS platforms, and web applications
Resolving complex issues in shared, VPS, and dedicated hosting environments
Securing websites and servers against future attack attempts
Cloud-hosted environment security reviews
I have successfully removed malware and secured environments hosted on platforms such as OVH, Bluehost, Cloudways, GoDaddy, HostGator, SiteGround, Hostinger, Namecheap, and other major hosting providers.
I can help detect and remove malware, rootkits, viruses, spyware, and trojans from your website or server, while also addressing the root cause to prevent reinfection.
Technical Expertise
Web Application Penetration Testing (OWASP Top 10, authentication flaws, file upload vulnerabilities, RCE, LFI/RFI, SQL injection, XSS)
API Security Testing
Internal Active Directory and External Network Penetration Testing
Red Team operations and attack simulations
Linux servers, hosting infrastructure, and web technology stacks
Clear technical and executive-level reporting with actionable remediation steps
Security Services Offered:
Web Application Security Testing
Full server malware removal
Backdoor detection and removal
Hosting suspension issue resolution
Blacklist removal (Google, browsers, security vendors)
API Security Testing
Penetration Testing
Internal Active Directory & External Network Pentesting
Vulnerability Assessment
Thick Client Penetration Testing (Windows desktop applications)
Fix Google Ads disapproval due to malicious software
Security plugin or module installation & configuration
Plugin and module updates (safe, compatibility-checked)
Website error diagnosis and fixes
SSL certificate installation and configuration
SQL Injection & XSS prevention
Long-term protection against reinfect
Malware identification and removal
Website and application cleanup after compromise
Rootkit, virus, spyware, and trojan detection
Post-breach investigation and forensic analysis
Attack vector identification and root-cause analysis
What You Can Expect:
A practical, real-world security approach
Clear communication and full transparency
Evidence-based findings (Proof of Concept where applicable)
Actionable recommendations, not generic advice
If you are looking for someone who understands how attackers think, how websites actually get compromised, and how to fix and prevent these issues effectively, I would be glad to discuss your project.
Best regards,
Associated with
Esteplogic IT Solutions Pvt Ltd
$400K+
earned
Argentina
$30/hr
93%
Job Success
$100K+ earned
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I am a passionate developer with specialized experience in technologies such as React, NextJs, React Native, Redux, Zustand, and Context. My dedication revolves around creating seamless and efficient digital experiences.
Throughout my professional journey, I have gained solid expertise in server-side development using Node.js and Express.js. My experience extends to various databases, including MongoDB, Firebase, MySQL, and SQLite, enabling me to approach projects with versatility and effectiveness.
In addition to my technical skills, I have a proactive approach to problem-solving and performance optimization. My goal is to contribute to project success by developing innovative and scalable solutions.
I am always eager to learn and grow in the world of software development, and I am open to new opportunities and challenges. Connect with me to explore potential collaborations and share insights in the exciting realm of technology!
$15/hr
100%
Job Success
$100K+ earned
Available now
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With 𝐦𝐨𝐫𝐞 𝐭𝐡𝐚𝐧 𝐬𝐞𝐯𝐞𝐧 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, I 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐢𝐧 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐚𝐧𝐝 𝐜𝐮𝐬𝐭𝐨𝐦 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐞𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐬𝐭𝐨𝐫𝐞𝐬 using the MERN stack, including MongoDB, Express, React, and Node.js. I focus on delivering fast, reliable, and growth ready solutions tailored to business needs.
Also, I have in-depth understanding of implementing 𝐀𝐈-𝐜𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬 𝐰𝐢𝐭𝐡𝐢𝐧 𝐞-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 𝐚𝐧𝐝 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 to enhance functionality and automation.
From 𝐜𝐮𝐬𝐭𝐨𝐦 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐚𝐧𝐝 𝐀𝐏𝐈 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 𝐭𝐨 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧, I build solutions that improve user experience, streamline business operations, and support long-term growth.
Services I can provide :
✅ 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬:
✔︎ Modern web apps using React.js / Next.js + Node.js
✔︎ SaaS platforms with authentication, dashboards, and analytics
✔︎ Admin panels, APIs, and scalable backend systems
✅ 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧:
✔︎ Payment, shipping, CRM, ERP, and marketplace integrations
✔︎ REST & GraphQL API development and integrations
✔︎ Custom backend services for Shopify and web platforms
✅ 𝐀𝐈 𝐈𝐦𝐩𝐥𝐞𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧:
✔︎ AI chatbots and AI assistants for e-commerce and SaaS
✔︎ OpenAI / GPT integrations for automation and recommendations
✔︎ AI-driven workflows and intelligent product search
✅ 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭:
✔︎ Custom Shopify store development & theme customization
✔︎ Shopify Store 2.0 architecture and performance optimization
✔︎ Shopify app development & third-party integrations
✔︎ Checkout customization, metafields, and automation workflows
✅ 𝐂𝐨𝐫𝐞 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐬𝐭𝐚𝐜𝐤 𝐈 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 :
✔︎ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 ➜ React.js, Next.js, JavaScript, TypeScript, Tailwind CSS
✔︎ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 ➜ Node.js, Express.js, Nest.js, REST API Development, GraphQL APIs
✔︎ 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 ➜ Shopify Store Development, Shopify APIs, Custom Shopify App Development, Headless Commerce (React / Hydrogen)
✔︎ 𝐀𝐈 𝐈𝐦𝐩𝐥𝐞𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 ➜ OpenAI / GPT Integrations, AI Chatbots, RAG-Based Systems, Vector Databases
✔︎ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 ➜ PostgreSQL, MongoDB, MySQL, AWS, Docker, CI/CD Pipelines
I believe in clear and open communication to build a strong and productive working relationship. I stay easily available for discussions and regularly share updates.
Let's discuss your project requirements.
Yashasvee S.
has worked
.
Associated with
The Brihaspati Infotech Pvt. Ltd.
$10M+
earned
$35/hr
100%
Job Success
Available now
Start of list.
End of list.
If you're looking to:
• Build AI-powered applications using LLMs (GPT / OpenAI)
• Develop AI chatbots, assistants, or agentic systems
• Create scalable full-stack SaaS platforms (.NET, Node, Python)
• Integrate APIs, CRMs, and business systems
• Implement RAG pipelines, Voice AI, or automation systems
=> I can help you turn it into a production-ready, scalable solution.
I build AI-powered systems and full-stack applications using LLMs, OpenAI (GPT), Python, and .NET, combined with robust API integrations.
My focus is not just features, I design and develop complete AI systems that connect data, automate workflows, and scale with your product or business.
𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘄𝗶𝘁𝗵:
• AI chatbots & GPT-powered assistants (OpenAI, LLMs)
• RAG systems (document processing, semantic search, knowledge AI)
• Agentic AI systems & multi-step workflows
• Voice AI & calling systems (Twilio, Vapi)
• Full-stack AI SaaS applications (.NET, Node.js, Python)
• API integrations across CRMs, SaaS platforms, and databases
• Automation systems and backend workflows
• Machine learning / NLP-based data processing
𝗧𝗲𝗰𝗵 𝘀𝘁𝗮𝗰𝗸:
• Core: Python, C#, .NET, Node.js, JavaScript
• AI: OpenAI (GPT), LLMs, LangChain, embeddings, NLP
• AI Development: Claude Code, GitHub Copilot, Codex, Cursor, Windsurf, Manus, Antigravity
• Backend: .NET APIs, REST APIs, microservices, webhooks
• Full-stack: .NET (Blazor / ASP.NET), Node.js, frontend frameworks
• Data: SQL / NoSQL databases, vector databases (RAG systems)
• Automation & Integrations: APIs, Zapier, Make, n8n
• CRM / Systems: HubSpot, Salesforce, Airtable
• Voice AI: Twilio, Vapi (AI voice agents & calling systems)
• Tracking & Marketing: ClickFlare, webhook tracking
• Payments: Stripe
• Cloud & Deployment: scalable backend systems
𝗪𝗵𝗮𝘁 𝗽𝗿𝗼𝗯𝗹𝗲𝗺𝘀 𝗜'𝘃𝗲 𝘀𝗼𝗹𝘃𝗲𝗱:
• AI Lead Generation & Outreach System
Built an end-to-end AI pipeline for lead sourcing, enrichment, and automated outreach - replacing manual prospecting and saving hours of repetitive work.
• AI Customer Support System (GPT + RAG)
Developed a chatbot integrated with internal knowledge base using embeddings and semantic search - enabling fast, accurate responses and reducing support workload.
• Full-Stack AI SaaS Platform (.NET + APIs + LLMs)
Designed and built a scalable AI application with backend APIs, LLM integration, and user workflows - turning a concept into a production-ready system.
• RAG-Based Document Intelligence System
Implemented document ingestion, embeddings, and retrieval pipeline for semantic search and Q&A across large datasets.
• Voice AI & Calling Automation (Twilio / Vapi)
Built AI voice agents to handle calls, responses, and workflow execution - automating communication processes.
• Business Systems Integration (APIs + CRM + Payments)
Integrated Stripe, CRM platforms, and backend systems to automate workflows, sync data, and eliminate manual operations.
Share your current workflow or idea - I’ll quickly break it down and suggest the best way to build or automate it using AI.
$75/hr
67%
Job Success
$6K+ earned
Available now
Start of list.
End of list.
Thank you for reviewing my profile.
I’m an AI Systems Engineer with 7+ years of experience building scalable backend systems, web applications, and production AI solutions.
My focus is on building AI systems that connect LLMs to real business data, APIs, CRMs, internal tools, and workflow automation. I specialize in agentic AI, RAG pipelines, AI automation, and backend integrations that help companies move beyond simple chatbots into practical, production-ready AI systems.
Core Expertise:
AI & Automation:
- LLM integration with OpenAI, Claude, Gemini, and AWS Bedrock
- Agentic workflows using LangChain, LangGraph, CrewAI, and n8n
- RAG systems using embeddings, vector databases, and semantic search
- AI assistants, internal knowledge systems, and workflow automation
- Prompt engineering, tool calling, structured outputs, and AI evaluation
Backend & Data:
- Python, FastAPI, Django, Node.js
- REST APIs, GraphQL, microservices, and backend architecture
- Data pipelines, ETL workflows, and structured/unstructured data processing
- PostgreSQL, MongoDB, MySQL, Neo4j, and vector database integrations
Cloud & DevOps:
- AWS, Azure, Docker, CI/CD pipelines
- Cloud deployment, monitoring, logging, and infrastructure automation
I help businesses build reliable AI-powered systems that improve operations, reduce manual work, and make company data more useful. My strength is not just building prototypes, but delivering scalable, maintainable, and production-ready AI solutions.
Joshua D.
has worked
.