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$15/hr
100%
Job Success
$100K+ earned
Available now
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I help startups, founders, and businesses with Full Stack Development to build scalable SaaS platforms, AI-powered applications, web apps, and mobile apps using React, Next.js, Node.js, React Native, MongoDB, and OpenAI.
As a Full Stack Developer with 8+ years of experience, I have built and launched 25+ products including SaaS platforms, startup MVPs, AI-integrated systems, healthcare software, eCommerce platforms, marketplaces, CRM systems, LMS platforms, and custom business automation tools.
My expertise includes:
• SaaS MVP Development
• AI Integration & Automation
• React / Next.js Frontend Development
• Node.js Backend & API Development
• Mobile Apps (React Native)
• CRM & Admin Dashboards
• Marketplace Platforms
• Custom Business Automation
I can help you:
• Build scalable SaaS products
• Develop AI-powered features using OpenAI APIs
• Create fast and modern React/Next.js applications
• Build secure backend systems and APIs
• Launch MVPs quickly for startups
• Improve workflows through automation
Industries I’ve worked with include:
• SaaS & Startups
• Healthcare
• eCommerce
• Education
• Marketplaces
• Creator Platforms
• Small Businesses
Why clients work with me:
• Clear communication
• Fast execution
• Business-focused development
• Clean scalable architecture
• Long-term support
Whether you need an MVP, SaaS platform, AI integration, or a complete product built from scratch, I can help turn your idea into a scalable solution.
Suchit B.
has worked
.
Associated with
JAYACHETNA SOFTWARE SOLUTION PRIVATE LIMITED
$1M+
earned
$30/hr
98%
Job Success
$500K+ earned
Available now
Offers consultations
Start of list.
End of list.
Here is something most business owners never hear. Your 𝗘𝗥𝗣 𝘀𝘆𝘀𝘁𝗲𝗺 is not just software, it is the backbone of every department in your company. A strong Odoo implementation is not only about installing modules. It is about 𝘀𝘁𝗿𝗮𝘁𝗲𝗴𝘆, 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲, 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝗮𝗹𝗶𝗴𝗻𝗺𝗲𝗻𝘁, and 𝗹𝗼𝗻𝗴-𝘁𝗲𝗿𝗺 𝘀𝗰𝗮𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆. This is where I bring real value.
I am an 𝗢𝗱𝗼𝗼 𝗦𝗶𝗹𝘃𝗲𝗿 𝗣𝗮𝗿𝘁𝗻𝗲𝗿 𝗮𝗻𝗱 𝗘𝗥𝗣 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁, trusted by SMEs, startups, and global enterprises. With 20+ years in tier-1 enterprise applications, a background as a PwC consultant, and 10+ years focused exclusively on Odoo, I understand what businesses actually need from ERP and how decision makers evaluate risk, cost, and long-term value.
⭐ 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗼 𝗕𝗲𝘀𝘁
➤ Odoo implementation and full ERP rollout
➤ Custom Odoo module development
➤ Odoo API integrations with CRMs, eCommerce, and payment gateways
➤ Odoo AI automation and intelligent workflows
➤ Odoo data migration and version upgrades (including Odoo 19)
➤ Odoo performance optimization and rescue projects
➤ Odoo portal development and third-party integrations
➤ Solution architecture and ERP strategy consulting
⭐ 𝗠𝘆 𝗜𝗺𝗽𝗹𝗲𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻 𝗔𝗽𝗽𝗿𝗼𝗮𝗰𝗵
Before configuring a single module, I take time to understand your business, your processes, and your growth goals. A clear implementation methodology is at the center of every successful ERP rollout. I focus on business process mapping first, technology second.
I build Odoo solutions using
➤ Structured business process analysis and business process modeling
➤ Upgrade-safe, maintainable customizations
➤ Clean data migration and system integration
➤ Scalable enterprise resource planning architecture
➤ Real-time reporting and dashboard visibility
My goal is to make your ERP feel like it was built specifically for how your business works.
⭐ 𝗢𝗱𝗼𝗼 𝗠𝗼𝗱𝘂𝗹𝗲𝘀 𝗜 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵
➤ Accounting and Financial Accounting
➤ Sales, CRM, and CRM Automation
➤ Inventory Management and Warehouse
➤ Manufacturing and MRP
➤ Purchasing and Purchase Orders
➤ POS (Point of Sale)
➤ eCommerce and Website
➤ Helpdesk and Customer Support
➤ HR and Payroll
⭐ 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝗸𝗶𝗹𝗹𝘀 𝗮𝗻𝗱 𝗧𝗼𝗼𝗹𝘀
➤ PostgreSQL database management and optimization
➤ RESTful API development and integration
➤ AI agent development and automation (n8n, custom bots)
➤ Docker and DevOps for scalable Odoo deployments
➤ Web development and dashboard design
➤ Data management, bookkeeping, and bank reconciliation
⭐ 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵
➤ Manufacturing and retail
➤ eCommerce and SaaS
➤ Finance and professional services
➤ Education and healthcare
From startup founders implementing their first ERP to enterprise teams migrating from legacy systems, I deliver Odoo solutions that scale.
⭐ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗧𝗿𝘂𝘀𝘁 𝗠𝗲
➤ 100+ Odoo ERP implementations delivered
➤ Fortune 500 client experience, including PepsiCo
➤ Clear communication at every project stage
➤ Upgrade-safe customizations that protect your investment
➤ Full documentation and knowledge transfer
➤ A structured, business-first implementation process
My work has helped clients replace disconnected legacy systems, automate manual workflows, and gain real-time visibility across their operations.
⭐ 𝗥𝗲𝗰𝗲𝗻𝘁 𝗥𝗲𝘀𝘂𝗹𝘁𝘀
➤ Full ERP implementations delivered for SMEs and global enterprises
➤ Custom Odoo modules built for accounting, inventory, and manufacturing
➤ Rescue projects that stabilized underperforming Odoo systems
➤ AI-driven automation workflows integrated into Odoo operations
You bring the business requirements. I turn them into an ERP system that performs.
⭐ 𝗟𝗲𝘁 𝗨𝘀 𝗕𝘂𝗶𝗹𝗱 𝗮𝗻 𝗘𝗥𝗣 𝗦𝘆𝘀𝘁𝗲𝗺 𝗧𝗵𝗮𝘁 𝗪𝗼𝗿𝗸𝘀 𝗳𝗼𝗿 𝗬𝗼𝘂
If you want an Odoo implementation that is strategic, scalable, and built the right way from day one, I am here to help. Share your business processes, current systems, or even a simple description of your challenges, and I will outline a practical roadmap you can move forward with confidently.
𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗲𝗹𝗲𝘃𝗮𝘁𝗲 𝘆𝗼𝘂𝗿 𝗘𝗥𝗣? 𝗟𝗲𝘁'𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝘁𝗵𝗮𝘁 𝘀𝗰𝗮𝗹𝗲𝘀.
Keywords:
odoo developer, odoo consultant, odoo implementation, odoo erp, odoo development, odoo customization, odoo integration, odoo silver partner, erp solution architect, odoo api integration, odoo data migration, odoo administration, enterprise resource planning, crm development, inventory management, business process modeling, postgresql, odoo ai automation, AIAgentDevelopment, CRMAutomation, BusinessProcessModeling, RESTfulAPI
Sufyan E.
has worked
.
Associated with
Axiom World
$500K+
earned
United States
$85/hr
100%
Job Success
Available now
Start of list.
End of list.
A technically diverse background that includes the full spectrum of software product development, workforce development and continuous education. Excellent at realizing the larger role a software product plays in a company’s IT, business and product strategies. Always looking at what is best for the company aligning business objectives along with what is technically best. Adaptable to new technologies and have an adept understanding that IT just as the business is a moving target and requires constant attention. Exceptional with creating training programs that enable teams and individuals to improve skills both in the use of technology and streamlining team dynamics.
$28/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
End of list.
✔︎ TOP RATED PLUS | 100% Client Satisfaction | 9+ Years Enterprise Delivery
✔︎ Full Stack Expert: .NET Core | C# | Python | React | Node.js | AI Integration
✔︎ Specialized in SaaS, FinTech, HealthTech, ERP, CRM, Marketplaces, and Cloud Platforms
✔︎ AI-Powered Apps | Scalable SaaS Architecture | Production-Ready Full Stack Systems
Are you building a SaaS product, an AI-powered web application, an ERP system, or an enterprise platform that needs to scale fast, perform under pressure, and ship on time?
I design and deliver full-stack systems using .NET Core, C#, Python, React, and Node.js, handling everything from database architecture to cloud deployment, with clean code, full ownership, and zero shortcuts from day one.
𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞
𖧹 .NET and C# Development: ASP.NET Core, .NET 6/7/8, MVC, Web API, Entity Framework, LINQ, Blazor
𖧹 AI and Automation: OpenAI API, LangChain, AI Agents, Chatbot Development, Prompt Engineering, AI-Powered SaaS Products
𖧹 Python Development: FastAPI, Django, REST APIs, Automation Scripts, Data Processing, AI and ML Pipeline Integration
𖧹 React and Node.js: ReactJS, NextJS (SSR/SSG), NodeJS, NestJS, ExpressJS, Angular, REST APIs, GraphQL APIs
𖧹 Frontend Engineering: TypeScript, Tailwind CSS, Material UI, Ant Design, Bootstrap, Framer Motion, Redux Toolkit, React Query
𖧹 Backend Systems: Microservices Architecture, gRPC, WebSockets, SignalR, Kafka, RabbitMQ, Event-Driven Design
𖧹 Databases and Caching: PostgreSQL, SQL Server, MySQL, MongoDB, Redis, Firebase, DynamoDB, Firestore, Schema Optimization, Indexing
𖧹 Architecture and Security: Multi-Tenant SaaS, RBAC, OAuth2, JWT, Secure Auth, Stripe API, Monolith to Microservices Migration
𖧹 Cloud and DevOps: AWS (EC2, Lambda, ECS, S3), Azure App Services, Azure Functions, Docker, Kubernetes, Terraform, CI/CD, GitHub Actions, GitLab, Vercel, DigitalOcean, Heroku
𖧹 Performance and Testing: Core Web Vitals, API Latency Optimization, Unit Testing, Jest, Cypress, Playwright, Mocha, PWA, SEO Optimization, Production Hardening
𝗥𝗲𝗰𝗲𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗧𝗵𝗮𝘁 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 𝗥𝗲𝘀𝘂𝗹𝘁𝘀
➜ BookedSolid | AI Appointment Automation SaaS
Tech: OpenAI, Twilio, Node.js, React, MongoDB
𖧹 Built an AI-powered booking engine with natural language scheduling via SMS and voice
𖧹 Automated end-to-end appointment workflows, cutting manual handling by 80%
➜ Renters / GetRenters | FinTech SaaS Platform
Tech: Next.js, Tailwind CSS, Node.js, AWS Lambda, MongoDB
𖧹 Architected lease management dashboards, workflows, and Stripe Connect payment integration
𖧹 Optimized all APIs for 40% faster load times, now actively serving 10,000+ users
➜ Ucardia | HealthTech and Wellness Platform
Tech: ReactJS, NestJS, Python, PostgreSQL, Redis
𖧹 Built a HIPAA-compliant clinician portal with real-time patient data streams
𖧹 Integrated wearable devices, automated health notifications, and a fully secure API layer
➜ DigitalSchools | EdTech ERP System
Tech: .NET Core, React.js, Azure
𖧹 Delivered a complete school management platform covering Admissions, Fees, Attendance and Multi-Tenant architecture
𖧹 Implemented enterprise-grade RBAC access control across all user roles and modules
➜ High-Traffic E-Commerce and Marketplace Platform
Tech: MERN Stack, Node.js, PostgreSQL
𖧹 Engineered a custom cart, payment gateway integration, and dynamic inventory management system
𖧹 Optimized fully for mobile, desktop, and high-concurrency production traffic
𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗛𝗶𝗿𝗲 𝗠𝗲 𝗔𝗴𝗮𝗶𝗻 𝗮𝗻𝗱 𝗔𝗴𝗮𝗶𝗻
✔︎ End-to-End Ownership: I handle Architecture, Database, Backend, Frontend, Cloud, and Deployment myself
✔︎ AI-Ready Development: Every system I build is structured to integrate AI features today or in the future
✔︎ Clean and Strictly Typed Code: TypeScript, C#, Python, and Node.js, always maintainable and fully documented
✔︎ Scalable by Design: Multi-tenant SaaS, microservices, and cloud-native architecture from the ground up
✔︎ Transparent and Reliable: Daily progress updates, structured Agile workflow, no surprises, and no ghosting ever
Whether you are building a SaaS product, an AI-powered platform, an ERP or CRM system, a FinTech application, a HealthTech dashboard, or a high-traffic marketplace, I deliver production-tested, enterprise-grade solutions built for real-world scale and long-term growth.
Send me a message so we can discuss.
Full Stack, MERN Stack, MEAN Stack, .NET, ASP.NET Core, C#, Blazor, MVC, Web API, Python, FastAPI, Django, Node.js, NestJS, ExpressJS, ReactJS, Next.js, Angular, Vue.js, TypeScript, Tailwind CSS, Material UI, Ant Design, Framer Motion, Redux Toolkit, React Query, Context API, REST API, GraphQL, gRPC, WebSockets, SignalR, MongoDB, PostgreSQL, MySQL, SQL Server, Redis, DynamoDB, Firestore, Kafka, RabbitMQ, Microservices, Multi-Tenant SaaS, OAuth2, JWT, RBAC, Stripe API, OpenAI API, LangChain, AI Agents, AWS, Lambda, EC2, S3, ECS, Azure Functions, Azure App Services, Docker
Mohsin J.
has worked
.
$40/hr
98%
Job Success
$500K+ earned
Start of list.
End of list.
🏆 Top 3% on Upwork.
✅ Fluent English.
✅ Swift response and communications.
We are BN Digital, a team of creators, software engineers, and strategists. Companies like Microsoft, Cambridge University, Snap, hire us when they want to have a reliable partner who cares abut their customers. We worked with dozens of the world’s largest brands and partnered with hundreds of innovative startups, helping them grow and succeed by unleashing the power of design and technology.
What are the main things I can help you with:
🔮 Understanding how your idea could be brought to life via business analysis, right technology stack, and proper processes and practices;
🔮 Saving time and money via rapid prototyping, creating proofs of concepts, defining and launching a minimum valuable product;
🔮 Bringing your idea to real customers via assigning the right team and moving through software development cycle;
🔮 Lowering development risks and costs via precise and technically feasible requirements and product management;
🔮 Deploying bullet-proof solutions, creating efficient, scalable infrastructure, and setting up swift, reliable CI/CD processes.
Our technology stack and capabilities:
🧑💻 Front end:
React.js, Vue.js, HTML5, CSS3, Javascript, Typescript
🧑💻 Cross-platform frameworks:
Flutter, Dart, React Native, Javascript, Typescript
🧑💻 Back end:
Node.js, Firebase, PHP, Symfony
🧑💻 Databases:
MongoDB, DynamoDB, PostgreSQL, MySQL/MariaDB
🧑💻 Infrastructure:
Kubernetes, Docker, GitHub, AWS, Azure, DigitalOcean
🧑💻 Integrations:
Stripe, Google, Mailchimp, Hubspot,
🧑💻 Handy additions:
Ant.d, Storybook.js, D3.js, Kafka, RabbitMQ, Terraform, IaaS
🧲 Our team capabilities include:
UX Design, UI design, Prototyping, Interaction design, Branding, Animations and lnteractions creation
Industries and solutions we excel in:
🚀 Fintech, financial services: finances governance, pricing tools, reporting, self-service tools, data visualization, KYC;
🚀 Proptech, real estate: booking systems, marketplaces, property governance, risk management;
🚀 Healthtech, healthcare, wellness, fitness: various trackers, personal assistants;
🚀 Adtech, marketing: marketplaces, booking system, risk management tools;
🚀 System-as-a-Service platforms: onboarding, user conversion, customer retention.
What does this mean for you?
✅ You get a real partner who has your best interests at heart, and we will not let you back the wrong horse;
✅ You access to top-notch expertise in digital product development for a variety of verticals;
✅ Whoa, you read through this list. We appreciate it. You'll find many small cool things while working with us, like this immediate 5% discount for the first 100 hours of a scope;
✅ You acquire a massive amount of proven solutions, practices, and processes, which would boost your productiveness and efficiency.
Whether you are a new startup or an established enterprise, our team is here to help. Please get in contact, and I provide an assessment of what your project needs to be successful.
Keywords that you can use to find me:
Custom software, software development, web development, web app development, application development, UI development, development expert, platform development, software development, guidelines, continuous development, desktop, iPhone, application, usability, website, responsive, adaptive, long term, effective, productive, experienced, React,React.js, ReactJS, Strapi CMS, Stripe API, CMS, Vue.js, HTML5, CSS3, HTML, CSS, javascript, typescript, Node.js, Node, MongoDB, GitHub, GitLab, BitBucket, agile, scrum, kanban, Jira, Asana, Trello, Pug, Blade, EJS, SASS, SCSS, LESS, Stylus, Redux-thunk, webpack, Gulp, RxJS, SQLite, PostgreSQL, Kubernetes, K8s, Docker, Docker Swarm, Ansible, Github, CI/CD, Continous integration, Continous delivery, terraform, infrastructure, Portainer, Grafana.
Polina L.
has worked
.
Associated with
BN Digital
$10M+
earned
$45/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
End of list.
$400M+ in transactions processed across platforms we built. 100,000+ tickets sold on a product shipped from zero. 20+ countries reached by an EdTech app delivered end-to-end. I'm not listing what's possible — I'm listing what's already running in production.
I'm a full stack developer and software architect based in Israel, and the CEO of a 40+ engineer development agency. When you work with me, you get a senior technical partner who understands the code and the product — and a full team behind delivery when scope requires it.
🔹 Full Stack & SaaS Development
Scalable multi-tenant architectures, B2B dashboards, internal tools, and AI-integrated SaaS. Core stack: React, Next.js, Vue.js, TypeScript, JavaScript, Python, Node.js, Laravel — full stack web developer depth from database schema to UI.
🔹 Fintech & Banking
This is where I'm different from most full stack developers on this platform. We've built card issuing systems, treasury management platforms, AML/KYC pipelines, cross-border payment rails, and crypto-to-fiat flows. Live integrations: BlackRock, DocuSign, Salesforce, Rail API, Kraken, SEPA Instant. Production experience, not theoretical.
🔹 Mobile App Development
Native iOS (Swift) and Android (Kotlin) for security-critical applications. React Native for cross-platform. My mobile portfolio includes a hardware-encrypted messenger with a built-in crypto wallet, a DeFi app, and a React Native aviation booking system — real-world apps built for real stakes.
🔹 Web3 & Blockchain
EVM smart contract UIs, DeFi protocols, hardware-encrypted crypto wallets, seed-to-sale blockchain tracking, multi-chain no-code contract execution, tokenization platforms.
🔹 AI Integration
LLM integrations, OpenAI API, RAG pipelines, multi-agent workflow automation, Fathom AI analytics, ClickHouse data infrastructure. I build AI as a functional product layer, not a feature checkbox.
When you hire me as your full stack developer, you're not getting a solo freelancer bottleneck. You're getting a senior technical lead with backend, frontend, mobile, and DevOps teams — all behind one
point of contact, one contract.
Tech: Python · Django · FastAPI · React · Next.js · Vue.js · TypeScript · JavaScript · Node.js · Swift · Kotlin · React Native · PostgreSQL · MySQL · Redis · ClickHouse · AWS · GCP · Docker · Kubernetes · Solidity · Web3.js
Send me a direct message to get 30-minute session to map your architecture, align on tech stack, or define your MVP roadmap before development begins.
Associated with
BARVATECH LTD
$100K+
earned
$40/hr
100%
Job Success
$700K+ earned
Available now
Start of list.
End of list.
👋 Looking for a powerhouse full-stack engineer who can bridge Python-based AI innovation with Java-backed enterprise performance?
I bring 25+ years of professional full stack software development experience-combining backend architecture, enterprise Java systems, AI/ML engineering, and modern frontend frameworks into scalable, data-rich applications for finance, healthcare, retail, manufacturing, and government sectors.
With over 100 full-stack systems delivered, I've built mission-critical platforms and real-time analytics engines handling millions of events per day, while reducing operational costs by up to 65% through infrastructure optimization.
🏆 Why Work With Me?
✔️ 25+ years of enterprise-grade software development
✔️ 40+ Python projects using AI/ML for analytics, automation, and computer vision
✔️ 60+ Java systems modernized to Spring Boot, AWS & microservices
✔️ Built backend systems serving 10M+ users monthly
✔️ AI-based fraud detection systems with 98%+ accuracy
✔️ Scaled apps to handle 1M+ real-time events/second using Kafka, EventBridge, and Spark
✔️ Healthcare-grade imaging tools for tumor classification (TensorFlow + OpenCV)
✔️ 50+ legacy migrations from J2EE/Struts to microservices
✔️ Deployed full-stack apps across 20+ industries, including fintech, eCommerce, telecom, and eLearning
✔️ CI/CD pipelines & Dockerized monorepos for faster dev cycles and better team velocity
🧠 Tech Stack & Core Skills
🖥️ Languages:
Python, Java, TypeScript, JavaScript, HTML5, CSS3, SQL, Shell Scripting
🧠 Python AI/ML & Automation:
TensorFlow, PyTorch, OpenCV, Scikit-learn, NumPy, Pandas, Matplotlib
AI Workflows | Computer Vision | Predictive Analytics | Data Pipelines | Image Recognition | Fraud Detection
Automation using Python + Selenium, BeautifulSoup, Scrapy
☕ Java Enterprise Stack:
Spring Boot, Spring Cloud, Hibernate, Akka, Play, Grails
Java Microservices | RESTful APIs | SOAP | JMS | JPA | Quartz | Lombok
Legacy Refactoring | J2EE → Spring Boot | Tomcat | WildFly | WebLogic
📊 Frontend (Full-stack Scope):
Angular.js, Vue.js, React.js, Next.js, Svelte
Tailwind, Bootstrap, Material-UI | JSP | Thymeleaf | JSF | EJS
SPA Development | SSR/ISR | Responsive UI | Webpack, Vite, Gulp
📦 DevOps & Cloud:
Docker, Kubernetes, AWS (Lambda, SageMaker, EC2, S3, Kinesis, RDS), GCP, Azure
CI/CD: Jenkins, GitLab CI, Travis, Ansible, Terraform
Infrastructure as Code | Monitoring | Cost Optimization
📚 Data & Databases:
PostgreSQL, MySQL, Oracle, MSSQL, SQLite, MongoDB, Cassandra, Dynamo DB
Elasticsearch, Redis, Kafka, RabbitMQ, GraphQL, REST APIs
📌 Python & AI-Focused Solutions
🔹 AI-Based Automation for Workflow Optimization
🔹 Real-Time Object Recognition & Computer Vision Systems
🔹 Predictive Analytics for Retail, Logistics, and Healthcare
🔹 NLP Chatbots and Intelligent Assistants
🔹 Data Crawlers & Scrapers for eCommerce & SEO
🔹 Data Normalization Pipelines Handling 1TB+ Datasets
📌 Java & Enterprise Software Development
🔹 Full-stack Java + Angular/Vue platforms
🔹 Spring Boot Microservices for Finance, Healthcare, SaaS
🔹 Event-Driven Architectures with Kafka & Redis
🔹 Secure Auth (JWT, OAuth2, LDAP, SSO, 2FA)
🔹 Migrating Monoliths to Microservices (Cloud-Native Refactors)
🔹 Server-Side Java with JSP, JSF, and Servlet APIs
📌 Full-stack Projects Built from Scratch
🔹 Inventory Management System (Java + Vue + AWS)
🔹 Medical Diagnosis Dashboard (Python + Django + React)
🔹 Financial Fraud Detection Engine (PyTorch + Kafka)
🔹 Real Estate Listing Platform (Flask + Angular + PostgreSQL)
🔹 ERP Extensions for Manufacturing (Spring Boot + Thymeleaf)
💬 Results That Matter
✅ Built an AI-based inventory forecasting engine reducing stock outs by 42%
✅ Scaled a Java backend to handle 5M+ daily requests for a logistics app
✅ Migrated 3 legacy apps to AWS with 65% infra cost reduction
✅ Automated scraping workflows gathering 10M+ data points weekly
✅ Designed OCR pipeline (Python + Tesseract) for medical record digitization
✅ Delivered HIPAA-compliant image analysis tools with 95%+ detection accuracy
✅ Cut fraud risk 75% for fintech app using real-time anomaly detection
💼 Industries Served
🏥 Healthcare & Diagnostics
💳 Fintech & Insurance
🛍️ eCommerce & Dropshipping
🏗️ Manufacturing & Supply Chain
📚 EdTech & LMS Platforms
🛰️ Gov & Aerospace (including secure environments)
🏢 Enterprise SaaS & Internal Tools
Let’s build the next enterprise success story together.
💬 Message me to discuss your backend, AI/ML, or full-stack project!
🧩 Let’s Build Something Powerful
If you’re seeking a seasoned backend + full-stack expert who can turn complex business logic into reliable, scalable, and secure digital solutions - I’m your guy.
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Associated with
Ixobit Corporation (DBA Sibers)
$20M+
earned
$35/hr
100%
Job Success
$1M+ earned
Available now
Offers consultations
Start of list.
End of list.
I am a .NET full stack developer and software architect with 8+ years of experience building scalable web applications using ASP.NET Core, Angular, C#, TypeScript, Microsoft SQL Server, Azure, and modern cloud technologies. Across 35+ projects in defence, renewable energy, fintech, e-commerce, and enterprise SaaS development I have delivered systems that handle real production load, not just demo traffic.
What I build as a .NET full stack developer
My deepest work is in ASP.NET Core back-end development. I spent years as the lead .NET full stack developer on a platform managing thousands of wind and solar energy installations globally, processing massive volumes of real-time data, building microservices on .NET Core and Azure, and reducing critical downtime incidents by over 40% through improved monitoring and analytics. On another project I built a Loan Origination System in ASP.NET Core that automated the entire loan lifecycle from lead capture to loan issuance, integrating with HubSpot, external CRMs, and RESTful APIs on Microsoft Azure. The client went from manual processing to a fully automated fintech pipeline handling 550+ active applications, cutting processing time by 60%.
ASP.NET developer work across enterprise and defence
Some of my most complex work as an ASP.NET developer has been in defence and industrial sectors. I modernized a legacy web platform for a company managing 36 high-uptime naval fleet assets, warships that cannot afford downtime. The ASP.NET MVC rebuild reduced manual reporting time by 70% and enabled real-time asset tracking, secure document storage, and streamlined access to sensitive operational data. On another engagement I took over a large workplace management SaaS development project built by a single developer who had left, no documentation, weekly outages, daily hotfixes. I stabilized the ASP.NET Core back-end, eliminated the performance bottlenecks, and reduced unplanned incidents from weekly to zero within two months.
ASP.NET Zero and enterprise acceleration
ASP.NET Zero is my go-to when enterprise clients need multi-tenancy, role-based permissions, and audit logging without spending the first three sprints on boilerplate. I have used it to accelerate SaaS development on projects in pharma automation, workplace management software, and industrial IoT, cutting initial setup time by 3+ weeks and letting the team focus on actual business logic from day one. On average my clients ship their first production release 30% faster on ASP.NET Zero compared to building from scratch.
Full-stack web development across the whole system
As a .NET full stack developer I own the entire delivery, ASP.NET Core back-end, Angular or React front-end with clean web design, Microsoft SQL Server and PostgreSQL database design, and Azure infrastructure. I built a Shopify fulfillment tool in ASP.NET Core and React that reduced packing mistakes to zero and cut order processing time by 35%, integrating barcode scanning, inventory management, and connections to 8+ shipping providers. I delivered a fleet management system in .NET Core and Angular handling 1,250+ assets and 845 active rentals simultaneously, with automated reporting that saved operations teams 10+ hours per week. On the front end I work with Angular, React, TypeScript, JavaScript, Next.js, HTML, CSS, Bootstrap, and RESTful API integration, connecting them cleanly to .NET back-ends without creating maintenance nightmares six months later.
C# and .NET developer engineering that goes deep
Back-end development across 8 years as a .NET developer means I have seen what breaks under real load. I cut a US e-commerce platform's page load time from 8 seconds to 2, directly contributing to a 2x increase in sales. I optimize Microsoft SQL Server and PostgreSQL queries, regularly reducing query execution times by 60-80%, design database schemas that support complex reporting, and build API integration layers connecting .NET systems to CRMs, ERPs, payment gateways, and third-party platforms. I work with Node.js for event-driven services, TypeScript to keep large codebases maintainable, and Python or PHP when projects need scripting layers alongside the core .NET stack. For web development infrastructure I use Microsoft Azure and Amazon Web Services, Docker containers, microservices architecture, and CI/CD pipelines that reduced deployment time by 50% for several enterprise clients.
Why clients come back
I have worked with clients in Germany, the USA, Australia, the UK, Norway, Denmark, and the Netherlands across renewable energy, defence, fintech, e-commerce, and industrial IoT. What stays the same: I ask the right questions before writing the first line of code, flag problems early, and deliver .NET full stack applications that work in production, not just in development. If you are scaling a SaaS product, modernizing a legacy system, or need a .NET full stack developer your team can build on, let us talk.
Vadym K.
has worked
.
Associated with
Eastoner
$500K+
earned
$95/hr
100%
Job Success
$1M+ earned
Available now
Offers consultations
Start of list.
End of list.
🚀 SENIOR FULL-STACK AUTOMATION ENGINEER — AI · CRM/ERP · DevOps
I build production AI agents, automation workflows, and end-to-end integrations as ONE technical partner — instead of clients juggling 3-4 specialists who blame each other when systems break.
Trusted across 20+ verticals since 2019.
📊 TRACK RECORD (6+ years on Upwork)
✅ $1M+ earnings · 462 projects ($2K → $500K range) · 16,635 hours logged
✅ 100% Job Success Score · Top Rated Plus
✅ 5,000+ workflows deployed · $5M+ saved · 100K+ hours of manual work eliminated
✅ AI agents in production handling 10,000+ calls/month
✅ Certified partners: Monday, Make, Vapi, Retell AI, Palantir Foundry
✅ Supported by Retailbox team (15K+ combined hours) for surge capacity
✅ Average response under 4 hours · US East Coast (West Palm Beach, FL)
✅ Available 10-30 hrs/week or full-time burst engagements
🏆 RECENT WINS (anonymized)
• AI Copilot for $500M+ investment portal — Salesforce + SharePoint + RAG, 4-month build
• Multi-tenant AI SaaS for elder care lead intelligence — scraping + AI scoring + dashboard
• Healthcare wound care platform — HIPAA-compliant, mobile + EMR + AI transcription
• Estate Planning AI Copilot — Claude + custom legal workflows for law firm
• B2B Outbound System — Apollo + Clay + Smartlead + AI personalization, 1,000+ leads/week
• ERP transformation — QuickBooks → Tryton migration, custom Python pipeline
• AI Acquisition Engine — Multi-source enrichment + LLM scoring for B2B sales team
🌐 INDUSTRIES
Home Services & Trades (HVAC · Plumbing · Electrical · Roofing · Solar · Pool · Painting) · Healthcare & Medical (Clinics · Pharmacy · Health Insurance · EMR · HIPAA) · Financial Services (Mortgage · Insurance · Investment · Crypto · Payments) · Manufacturing (Cabinet · Furniture · Steel · Civil Engineering) · Real Estate & Property · Marketing & Sales
Agencies (GHL · HubSpot) · Construction & Contractors · Legal & Compliance · Retail & E-commerce (Shopify · Amazon · WooCommerce) · SaaS & Tech Startups · Telecom · Trucking · and more.
🤖 WHAT I DELIVER
AI Engineering
• Custom AI agents (Claude, GPT, Gemini) with tool calling
• MCP server development for enterprise systems
• RAG with vector databases (Pinecone, Weaviate, Qdrant, pgvector)
• LangChain, LangGraph, CrewAI orchestration
• I use Claude Code, Cursor, Codex daily — ship 5× faster
Workflow Automation
• n8n, Zapier, Make, Windmill, Power Automate
• Custom Python/Node replacing fragile no-code chains
• ETL pipelines (CRM ↔ data warehouse, AI training data, ERP migrations)
• Event-driven systems, drip campaigns, scheduled reports
CRM/ERP Integration & Architecture
• HubSpot, Salesforce, Zoho, Monday, Pipedrive, Dynamics 365, GHL, Close CRM
• NetSuite, Odoo, QuickBooks, Xero, Stripe
• Field service — ServiceTitan, Jobber, Housecall Pro
• Healthcare — eClinicalWorks, FHIR, HL7
• Multi-system architectures (5+ platforms unified)
Full-Stack Development
• React, Next.js, Node.js, Python, FastAPI, Django
• Mobile — React Native, native iOS/Android
• AI dashboards, admin panels, internal tools
• PostgreSQL, MongoDB, Redis
DevOps & Cloud
• AWS, GCP, Azure · Docker, Kubernetes, CI/CD
• Production monitoring, observability, security
• HIPAA / SOC2 / PCI-aware integrations
Voice AI — Vapi, Retell AI, Bland AI, Twilio (when use case fits)
🎯 COMMON ASKS
• Claude/GPT integration into your app or CRM
• AI SDR that books meetings (Apollo + Clay + Smartlead + Claude)
• RAG chatbot trained on your company data
• CRM automation with AI lead scoring (HubSpot/SF/Zoho/GHL)
• Field service workflow (ServiceTitan/Jobber + AI)
• Internal AI dashboard for ops team (Retool/custom)
• Migrate Zapier/Make spaghetti to maintainable code
• AI-powered mobile MVP (React Native + Claude)
• Voice AI receptionist (Vapi or Retell + CRM sync)
• ETL pipeline (QuickBooks/NetSuite ↔ data warehouse)
• Custom MCP server for your team's Claude
🎯 IDEAL FIT
I serve all sizes:
• SMB ($1K-$10K) — small but specific automation that pays back fast
• Mid-market ($10K-$100K) — multi-month engagements, multi-system builds
• Enterprise ($100K-$500K+) — strategic platform builds, AI-native systems
Engagement models:
• $2K-$15K fixed scope (1-6 weeks)
• $50K+ for AI/full-stack platform builds
• $95-125/hr fractional (10-30 hrs/week, weekly Slack sprints)
• Long-term Tech Support retainers
💼 HOW I WORK
Week 1 — discovery + architecture · Week 2-N — weekly build sprints with daily Slack · Final week — production deploy with docs, tests, handoff. You own the code (zero agency lock-in). Available for ongoing maintenance OR clean handoff to your in-house team.
💬 NEXT STEP
Send a 2-3 sentence brief: what you're building, your current stack, and the specific problem you want solved. Loom walkthroughs, existing repos, and architecture diagrams welcome.
Mikhail O.
has worked
.
$75/hr
98%
Job Success
$1M+ earned
Available now
Offers consultations
Start of list.
End of list.
Create Leverage! That is what I do. I build fast-performing, secure, reliable software to help you scale with confidence. Since 2010, I have helped countless smart entrepreneurs harness the power of software to 10X their business. If you are looking for the perfect symbiotic relationship, you are in the right place.
No micromanagement and complete transparency, that is how I became the top 1% developer on the largest freelancing platform in the world. A true fire and forget, THE silver bullet you have been looking for. No hidden fees, and lifetime free bug support for every single line of code that I will deliver. I earned millions on this platform by making my clients insanely rich. Don't settle for mediocre. In the world of ruthless competition, the only way to stay ahead is to have a true apex developer lead your IT efforts.
As you read this bio, your competition has been busy building a rival product—no time to waste. Message me now, and let's print money together!
Vepa D.
has worked
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