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Volodymyr D.

Lviv, Ukraine

$27/hr
4.9
22 jobs

Welcome ๐Ÿ‘‹I am an experienced web developer who is passionate about delivering successful projects and has a track record of delivering them ๐Ÿš€ ๐Ÿ”‘Key points about me: - Expert web developer with over 4 years of experience developing complex web applications. - Good communicator, with experience managing and leading development teams. - I have an entrepreneurial mindset and a product-oriented mindset, I enjoy not just writing code, but making projects successful. - A full-fledged developer, although I prefer the back-end. - Deep understanding of OOP, design patterns, domain-oriented design. - Specializes in React, Python, TypeScript, Flask, Django, FastAPI, WEB3 - Ability to write complex and efficient database queries, optimizing the site's performance. Knowledge of NoSQL (MongoDb), SQL(Postgresql, MySQL, SQLite). - Algorithms and Data Structure, Catching(Redis) - Experience with asynchronous messaging/queue processing. - Worked with many APIs such as Stripe, Saferpay, Twilio, Cronofy, Sendgrid, Hubspot, Zapier, Viva, PayPal and more. ๐Ÿ’ปWhen programming, I use industry best practices to achieve the best results; I consider myself a talented programmer. I am detail-oriented, my code is always well-commented, clean and easy to understand. I am also a quality-oriented developer and my code is always well-tested. I am able to plan, execute, test and launch projects. I am a self-starter who can see things through to the end. I am passionate about building great projects and helping companies succeed. Feel free to message me to discuss your project and make it a success!๐Ÿš€๐Ÿš€๐Ÿš€

  • Python
  • Django
  • Flask
  • FastAPI
  • React
  • JavaScript
  • TypeScript
  • SQL
  • NoSQL Database
  • Artificial Intelligence
  • AWS Amplify
  • Web Development
  • Smart Contract Development
  • REST API
  • AI Development
Volodymyr D.

Khmelnytskyy, Ukraine

$50/hr
5.0
4 jobs

โœ… ๐‡๐จ๐ฐ ๐ˆ ๐œ๐š๐ง ๐ก๐ž๐ฅ๐ฉ ๐ฒ๐จ๐ฎ: โžœ Grow your business with top-tier software development support. โžœ Bring your ideasโ€”or new features for your existing productโ€”to market faster and smoother. โžœ Optimize your development processes, making them more efficient and cost-effective with a streamlined app development workflow. โœ… ๐’๐ž๐ซ๐ฏ๐ข๐œ๐ž๐ฌ ๐ˆ ๐ฉ๐ซ๐จ๐ฏ๐ข๐๐ž: โ€ข ๐‚๐ฅ๐จ๐ฎ๐ ๐Œ๐ข๐ ๐ซ๐š๐ญ๐ข๐จ๐ง & ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ ๐ฐ๐ข๐ญ๐ก ๐€๐ณ๐ฎ๐ซ๐ž ๐š๐ง๐ ๐€๐–๐’ โ€ข ๐Œ๐ข๐œ๐ซ๐จ๐ฌ๐ž๐ซ๐ฏ๐ข๐œ๐ž ๐€๐ซ๐œ๐ก๐ข๐ญ๐ž๐œ๐ญ๐ฎ๐ซ๐ž ๐ˆ๐ฆ๐ฉ๐ฅ๐ž๐ฆ๐ž๐ง๐ญ๐š๐ญ๐ข๐จ๐ง โ€ข .๐๐„๐“ ๐…๐ซ๐š๐ฆ๐ž๐ฐ๐จ๐ซ๐ค & .๐๐„๐“ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โ€ข ๐Œ๐ข๐ ๐ซ๐š๐ญ๐ข๐ง๐  .๐๐„๐“ ๐…๐ซ๐š๐ฆ๐ž๐ฐ๐จ๐ซ๐ค ๐ญ๐จ .๐๐„๐“ ๐Ÿ๐จ๐ซ ๐ข๐ฆ๐ฉ๐ซ๐จ๐ฏ๐ž๐ ๐ฉ๐ž๐ซ๐Ÿ๐จ๐ซ๐ฆ๐š๐ง๐œ๐ž ๐š๐ง๐ ๐ฌ๐œ๐š๐ฅ๐š๐›๐ข๐ฅ๐ข๐ญ๐ฒ โ€ข ๐€๐’๐.๐๐„๐“ ๐–๐ž๐› ๐€๐๐ˆ (๐‘๐„๐’๐“๐Ÿ๐ฎ๐ฅ) โ€ข ๐€๐’๐.๐๐„๐“ ๐Œ๐•๐‚ โ€ข ๐€๐ณ๐ฎ๐ซ๐ž ๐’๐ž๐ซ๐ฏ๐ข๐œ๐ž๐ฌ โ€ข ๐ƒ๐จ๐œ๐ค๐ž๐ซ & ๐Š๐ฎ๐›๐ž๐ซ๐ง๐ž๐ญ๐ž๐ฌ ๐Ÿ๐จ๐ซ ๐ฌ๐œ๐š๐ฅ๐š๐›๐ฅ๐ž ๐๐ž๐ฉ๐ฅ๐จ๐ฒ๐ฆ๐ž๐ง๐ญ๐ฌ โ€ข ๐‡๐ข๐ ๐ก-๐‹๐จ๐š๐ ๐’๐ฒ๐ฌ๐ญ๐ž๐ฆ ๐Ž๐ฉ๐ญ๐ข๐ฆ๐ข๐ณ๐š๐ญ๐ข๐จ๐ง ๐Ÿš€ ๐‚๐ˆ/๐‚๐ƒ & ๐ƒ๐ž๐ฏ๐Ž๐ฉ๐ฌ ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž: โ€ข ๐‚๐ˆ/๐‚๐ƒ ๐๐ข๐ฉ๐ž๐ฅ๐ข๐ง๐ž๐ฌ ๐ฐ๐ข๐ญ๐ก ๐†๐ข๐ญ๐‡๐ฎ๐›, ๐€๐ณ๐ฎ๐ซ๐ž ๐ƒ๐ž๐ฏ๐Ž๐ฉ๐ฌ & ๐‚๐จ๐๐ž๐Ÿ๐ซ๐ž๐ฌ๐ก โ€ข ๐€๐ฎ๐ญ๐จ๐ฆ๐š๐ญ๐ž๐ ๐๐ž๐ฉ๐ฅ๐จ๐ฒ๐ฆ๐ž๐ง๐ญ ๐ฐ๐จ๐ซ๐ค๐Ÿ๐ฅ๐จ๐ฐ๐ฌ ๐Ÿ๐จ๐ซ ๐œ๐ฅ๐จ๐ฎ๐ ๐Ÿ“Š ๐ƒ๐š๐ญ๐š๐›๐š๐ฌ๐ž ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž: โ€ข ๐’๐๐‹ & ๐๐จ๐’๐๐‹ ๐ƒ๐š๐ญ๐š๐›๐š๐ฌ๐ž๐ฌ: ๐Œ๐’๐’๐๐‹, ๐Œ๐จ๐ง๐ ๐จ๐ƒ๐, ๐‚๐จ๐ฌ๐ฆ๐จ๐ฌ ๐ƒ๐ ๐Ÿ“ก ๐„๐ฏ๐ž๐ง๐ญ-๐ƒ๐ซ๐ข๐ฏ๐ž๐ง ๐€๐ซ๐œ๐ก๐ข๐ญ๐ž๐œ๐ญ๐ฎ๐ซ๐ž: โ€ข ๐Š๐š๐Ÿ๐ค๐š & ๐€๐ณ๐ฎ๐ซ๐ž ๐„๐ฏ๐ž๐ง๐ญ ๐‡๐ฎ๐›๐ฌ ๐Ÿ๐จ๐ซ ๐ซ๐ž๐š๐ฅ-๐ญ๐ข๐ฆ๐ž ๐๐š๐ญ๐š ๐ฌ๐ญ๐ซ๐ž๐š๐ฆ๐ข๐ง๐  ๐š๐ง๐ ๐๐ข๐ฌ๐ญ๐ซ๐ข๐›๐ฎ๐ญ๐ž๐ ๐ฆ๐ž๐ฌ๐ฌ๐š๐ ๐ข๐ง๐  ๐Ÿ”— ๐€๐ฎ๐ญ๐จ๐๐ž๐ฌ๐ค ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž: โ€ข ๐„๐ฑ๐ญ๐ž๐ง๐ฌ๐ข๐ฏ๐ž ๐ž๐ฑ๐ฉ๐ž๐ซ๐ข๐ž๐ง๐œ๐ž ๐ฐ๐ข๐ญ๐ก ๐€๐ฎ๐ญ๐จ๐๐ž๐ฌ๐ค ๐“๐š๐ง๐๐ž๐ฆ, ๐‘๐ž๐ฏ๐ข๐ญ, ๐€๐ฎ๐ญ๐จ๐‚๐€๐ƒ, ๐š๐ง๐ ๐€๐ฎ๐ญ๐จ๐๐ž๐ฌ๐ค ๐๐ฅ๐š๐ญ๐Ÿ๐จ๐ซ๐ฆ ๐’๐ž๐ซ๐ฏ๐ข๐œ๐ž๐ฌ (๐Ÿ๐จ๐ซ๐ฆ๐ž๐ซ๐ฅ๐ฒ ๐…๐จ๐ซ๐ ๐ž) โ€ข ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ ๐จ๐Ÿ ๐œ๐ฎ๐ฌ๐ญ๐จ๐ฆ ๐‘๐ž๐ฏ๐ข๐ญ & ๐€๐ฎ๐ญ๐จ๐‚๐€๐ƒ ๐ฉ๐ฅ๐ฎ๐ ๐ข๐ง๐ฌ ๐Ÿ๐จ๐ซ ๐š๐ฎ๐ญ๐จ๐ฆ๐š๐ญ๐ข๐จ๐ง ๐š๐ง๐ ๐ฐ๐จ๐ซ๐ค๐Ÿ๐ฅ๐จ๐ฐ ๐จ๐ฉ๐ญ๐ข๐ฆ๐ข๐ณ๐š๐ญ๐ข๐จ๐ง โ€ข ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง ๐จ๐Ÿ ๐€๐ฎ๐ญ๐จ๐๐ž๐ฌ๐ค ๐€๐๐ˆ๐ฌ ๐ฐ๐ข๐ญ๐ก ๐œ๐ฅ๐จ๐ฎ๐ ๐ฌ๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ & ๐ฆ๐ข๐œ๐ซ๐จ๐ฌ๐ž๐ซ๐ฏ๐ข๐œ๐ž๐ฌ ๐Ÿ‘ Feedback Daniel Myers: โ€œโญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ Our MVP for the integration of our product with Autodesk Tandem was a huge success! It received fantastic feedback at Autodesk University 2024, and we gained new customers thanks to the seamless integration and innovative approach.โ€ Erik Hagen: โ€œโญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ Migrating our legacy .NET Framework application to .NET Core was a game changer. Performance, security, and maintainability improved dramatically. Excellent work!โ€ Lucas Bennett: โ€œโญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ The custom Revit and AutoCAD plugins significantly optimized our workflows. Automation saved us countless hours and improved accuracy across projects.โ€ Anders Holm: โ€œโญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ The microservices architecture built for our project was top-notch! Everything was seamlessly deployed to Kubernetes (kube8) with Azure integration, making our system highly scalable and resilient. Performance improved significantly, and deployments are now fully automated. Exceptional work!โ€ ๐Ÿš€ How I Work โ€“ Delivering Value to You 1๏ธโƒฃ Understanding Your Needs โ€“ Ensuring a Perfect Fit Every project starts with a clear understanding of your goals, challenges, and vision. This ensures the solution is tailored to your business needs, minimizing miscommunication and unnecessary revisions. 2๏ธโƒฃ Technical Planning โ€“ A Clear Roadmap to Success A well-structured technical plan defines the best technologies, architecture, and development strategy. This approach reduces risks, optimizes costs, and ensures a scalable, future-proof solution. 3๏ธโƒฃ MVP Development โ€“ Fast Results with High Impact Delivering a functional Minimum Viable Product (MVP) allows you to test core features early, validate ideas, and start seeing value quickly without waiting for full development cycles. 4๏ธโƒฃ Feedback & Refinements โ€“ Tailored to Your Needs Incorporating your feedback early ensures the final product is user-friendly, efficient, and aligned with your expectations, leading to a solution that works exactly as you need it. 5๏ธโƒฃ Final Delivery & Support โ€“ A Reliable Long-Term Solution The final product is fully optimized, seamlessly integrated, and ready for real-world use, with ongoing support available to keep your system running smoothly. ๐Ÿ’ก Ready to start? Click โ€œInviteโ€ on my profile, and let's build something great together! BEST REGARDS, VOLODYMYR D. Keywords: .NET Backend Developer,Azure Backend Developer,C# Backend Developer,Microservices Backend Engineer,ASP.NET API Developer,Azure Functions Backend Developer,Azure Kubernetes Service Engineer,Azure Event Hubs Backend Developer,Azure Service Bus Backend Developer,Azure SQL Database Engineer,Azure Cosmos DB Software Engineer,Azure Bicep Backend Developer,Cloud Migration Backend Engineer,High-Load Systems Engineer,Distributed Systems Backend Developer,Autodesk API Backend Developer,Revit Plugin Backend Engineer,AutoCAD Backend Developer,Azure DevOps Backend Developer

  • API
  • Autodesk AutoCAD
  • Autodesk Revit
  • .NET Framework
  • .NET Core
  • JavaScript
  • SQL
  • Microsoft Azure
  • Microservice
  • REST API
  • Entity Framework
  • Back-End Development
  • Web Development
  • Front-End Development
  • React
Max S.

Kyiv, Ukraine

$60/hr
5.0
47 jobs

Experts in API Integration and Integration Architecture for complex business systems. When business systems must exchange data reliably, simple API connections are rarely enough. We design and build production-grade API integrations connecting ERP, CRM, e-commerce platforms, and internal systems โ€” focusing on reliability, observability, and long-term maintainability. Our work centers on custom integrations that support real business operations, not fragile scripts or quick automation hacks. ๐Ÿงฉ What We Do ๐Ÿ”น API Integration & System Connectivity Design and implementation of reliable API integrations between ERP, CRM, e-commerce, marketing, and internal systems using REST APIs, webhooks, and secure authentication. ๐Ÿ”น Integration Architecture Design of robust integration architectures including data synchronization strategies, retry logic, monitoring, error handling, and long-term maintainability. ๐Ÿ”น On-premise Integration Platforms Custom API integration hubs deployed on your infrastructure (Laravel / PHP), including scheduling, logging, monitoring, and full operational control. ๐Ÿ”น API Development & Consulting End-to-end API development: REST API design, OAuth authentication, webhook processing, multi-system integration strategies, system audits, and integration consulting. ๐Ÿ”น Data Synchronization Reliable data pipelines between ERP, CRM, analytics, and internal systems with validation, monitoring, and recovery mechanisms. โš™๏ธ Our Strengths โœ… Strong focus on API integration for complex business workflows (finance, e-commerce, logistics, marketing operations) โœ… Production reliability by default โ€” logging, retries, monitoring, and alerts included โœ… Security-first architecture suitable for on-premise and private cloud deployments โœ… End-to-end ownership โ€” from architecture and API development to deployment and long-term support ๐Ÿง  Tech Stack Languages & Frameworks: Laravel / PHP / Node.js / Python Integration Technologies: REST APIs, Webhooks, OAuth, event-driven integrations Platforms & APIs: HubSpot, QuickBooks Online, Xero, Shopify, Acumatica, BigCommerce, Airtable, Slack, Notion, Google Workspace Infrastructure: AWS, DigitalOcean, Docker, Linux ๐ŸŒŸ Why Clients Choose QPMSoft ๐Ÿ’ผ $400K+ earned on Upwork | 100% Job Success | 10+ years building integration systems ๐Ÿค Clear communication, fast response times, and realistic expectations ๐Ÿš€ Flexible engagement models โ€” from focused API integrations to long-term integration platforms Whether you need API Integration, custom API Development, or reliable system integrations between ERP, CRM, and e-commerce platforms, we focus on building systems that are stable, maintainable, and production-ready.

  • API Development
  • API
  • API Integration
  • RESTful API
  • Automation
  • Business Process Automation
  • JavaScript
  • PHP
  • Laravel
  • Zapier
  • Make.com
  • Application Integration
  • React
  • Python
  • Solution Architecture
  • REST API
  • Node.js
  • Marketing API Integration
  • WordPress
  • MySQL
Ihor A.

Kiev, Ukraine

$45/hr
5.0
62 jobs

I provide a Node.js Backend Developer team that ships production-grade SaaS, APIs and platforms. 11,000+ hours worked, 50+ Node.js Backend Developer projects delivered, 100% Job Success Score, Top Rated Plus. As CEO I scope and own every Node.js Backend Developer engagement we sign. I study the brief, run discovery with founders, match the right engineers and stay accountable for delivery. My team owns the code - I never touch it. So when a brief lands for a Backend Engineer, an API Developer or a full stack software engineer, I scope it and the team builds it. Why hire my team: - 20+ years of Node.js Backend Developer, Full Stack Developer and SaaS Developer delivery - 200+ Node.js Backend Developer and SaaS Developer projects shipped - Long-term clients on retainers (3 - 10+ years) Our Node.js Backend Developer team designs services, REST and GraphQL APIs, queues and event pipelines that hold up under real production load. A NestJS Developer on the team treats Node as a serious production runtime and owns the heavy backend modules. Typical engagements: multi-tenant SaaS APIs, real-time platforms, billing flows, data pipelines, AI-backed services. Stack: Node.js, NestJS, ExpressJS, TypeScript, PostgreSQL, Redis, Elasticsearch, AWS, GCP, Docker, Kubernetes. Our Full Stack Developer team owns systems end-to-end - one team handling Node.js services, React frontends, data models and infra. A React Node pairing is our default shape - a React Node frontend on a NestJS Developer backend, with a nextjs developer on SEO-critical pages. We replace fragmented setups where a website developer, web developer and front end specialist were stitched together. Adjacent angles I present daily: full stack developer saas for B2B platforms, python full stack developer pairings for data and AI, full stack developer ai integrations, full stack developer react teams for SaaS dashboards, full stack developer shopify extensions, full stack web developer rebuilds of legacy SPAs, full stack ai saas developer engagements where LLM features must ship at production standard. Our SaaS Developer team helps founders ship multi-tenant SaaS and B2B platforms. A SaaS Developer engagement covers auth and RBAC, Stripe billing, observability, anti-abuse and event tracking the saas marketing team can use. The team has shipped a webflow developer saas pairing, a b2b saas booking system developer engagement, a ui ux designer saas pipeline, a saas explainer video flow in onboarding and a saas sales console wired into the backend. On the API side a dedicated API Developer track owns contracts and versioning. A REST API Developer designs the REST API Developer surface - resources, pagination, idempotency, webhooks - and the API Developer keeps SDKs and docs honest. A Backend Engineer owns the data layer; a second Backend Engineer covers queues and workers so the API never blocks on jobs. Cross-language coverage. A python developer track owns scraping, ETL and AI workflows. python nodejs migrations land here when teams consolidate dual stacks. flutter node.js and vue.js node.js setups join the core when mobile or admin SPAs need a reactive layer. A react developer pairing handles SaaS dashboards on the API. A wordpress developer or shopify developer hand-off covers CMS migrations. A mobile app developer pairing extends the SaaS into iOS and Android. Clients hire me when they need: - a Node.js Backend Developer team that owns architecture, APIs and scaling - a back end developer node.js bench for high-traffic SaaS - a Full Stack Developer team replacing 3 - 5 contractors with one coherent system - a SaaS Developer team fluent in multi-tenancy, auth, billing and RBAC - an API Developer and Backend Engineer pair for a clean, versioned REST API Developer surface - a full stack software developer practice with CEO-level discipline on roadmaps - a website developer hand-off backed by the team Recent work my team shipped: - Cybersecurity SaaS. Node.js, NestJS, PostgreSQL, Redis on GCP + Kubernetes. 170M+ req/week, 500 RPS peaks, 1M+ MAU. - Device Verification SaaS. Single backend powering web, Telegram bot and Developer API. 4K+ DAU, 1M+ checks, 80%+ via API. - Clinic Enterprise platform. React, Next.js, Laravel, Node.js, Redis, AWS. REST API, queues, RBAC, 1C and lab integrations. MVP in 4 months for 500 patients/day, 500K records. - E-commerce Data Pipeline SaaS. 50M+ products, per-partner parsers, dedup. Cloud cost cut ~9x at sub-second search across 300 - 500K DAU. - Multi-currency Voting SaaS. Wallets, Stripe top-ups, real-time vote locking over WebSockets. 2M+ users in 10 countries, $2.5M+ revenue. Reliable SaaS comes from deliberate design - that's what my Node.js Backend Developer, Full Stack Developer and SaaS Developer team focuses on. Need a Node.js Backend Developer team, a Full Stack Developer team or a SaaS Developer partner that delivers on time and stays long-term - let's talk.

  • Bootstrap
  • CSS
  • CSS 3
  • ExpressJS
  • HTML
  • HTML5
  • JavaScript
  • Laravel
  • MongoDB
  • MySQL
  • Node.js
  • PHP
  • Python
  • React
  • TypeScript
  • Vue.js
  • WordPress
  • SQL
  • React Native
  • Software Development
Vitaliy M.

Mykolaiv, Ukraine

$35/hr
4.9
29 jobs

๐ŸŸข Looking for a developer who can boost your business processes using AI? ๐ŸŸข Hi, Iโ€™m Vitaliy, Top Rated Plus Python Developer and Automation Expert at DataOx with 10+ years of experience in Python and Java backend development, AI-powered automation platforms, LLM integrations, and large-scale data systems. For 8 years on Upwork Iโ€™ve completed numerous projects, maintaining a 97% Job Success score, delivering production-ready systems, AI agents, workflow automation solutions, data pipelines, and intelligent backend architectures that help companies reduce manual work, process high volumes of data, and scale operations efficiently. โญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ "The team is extremely efficient, creative, communicative, and flexible. They are excellent at bringing ideas and concepts to life. Our team has worked with other developers in the past, and no one compares to these guys. Do yourself a favor and hire them for your project." What I can help you with: โ€ข Web scraping & data extraction (complex, dynamic websites, anti-bot bypass) โ€ข API development & integrations (REST APIs, third-party services) โ€ข Workflow automation, RPA & backend systems โ€ข AI solutions: AI Chatbots, AI Agents & AI Automation for business workflows, LLMs, NLP, bots, intelligent processing โ€ข ETL pipelines & data engineering โ€ข System integration & custom tools โ€ข Python and Java backend, Web Applications & SaaS platforms My Technical Stack AI & LLM Systems: OpenAI API, LangChain, PyTorch, TensorFlow, LLM integration, RAG pipelines, multi-agent workflows, prompt engineering & optimization, AI chatbot backends Backend & Automation: Python, Java, FastAPI, Flask, Django, Spring Boot, REST APIs, Playwright, Selenium, Scrapy, BeautifulSoup Frontend: JavaScript, TypeScript, ReactJS, Next.js, Tailwind CSS Data & Infrastructure: Pandas, SQLAlchemy, PostgreSQL, MongoDB, BigQuery, Airflow, Docker, Kubernetes, AWS, GCP, Azure My Results in Numbers: ๐Ÿ”ถ AI Recruitment Platform: Built AI hiring platform with 900K+ candidates, 20K jobs, 2.5K companies, 120K assessments/year, 20K video interviews, 680K candidates via integrations. ๐Ÿ”ถ Global Certification Data Platform: Automated aggregation of 500K+ records/month, reducing search time from days to 15โ€“30 minutes and accelerating deal cycles by 3-5x. ๐Ÿ”ถ AI Document Intelligence System: Processed 1M+ documents/year with LLM, achieving 90%+ extraction accuracy, reducing manual work by 80%, handling 50+ document types, and scaling to 10K+ documents/day with automated validation Why Clients Choose Me Experience: 10+ years in backend engineering, Python development, Java Development and scalable AI systems Proven Quality: 97% Job Success Score and Top Rated Plus on Upwork Expertise: AI automation, LLM integrations, workflow automation, and production-ready backend architectures ๐Ÿ“ฉ Send me your project requirements, and Iโ€™ll provide a clear, high-impact strategy to turn your vision into reality.

  • API Development
  • API
  • API Integration
  • Python
  • Artificial Intelligence
  • Automation
  • Web Development
  • Data Mining
  • Machine Learning
  • Data Extraction
  • PostgreSQL
  • SQL
  • Web Crawling
  • Natural Language Processing
  • Bot Development
  • Java
  • Selenium
  • ETL Pipeline
  • Data Scraping
  • JavaScript
Igor B.

Kharkiv, Ukraine

$25/hr
4.8
29 jobs

๐ŸŽฏ I build apps that hold up when real users, real payments, and real traffic hit them. ๐ŸŽฏ 12 years in software engineering, 9 years specialized in Bubble io, 150+ shipped projects โ€” SaaS platforms, AI-powered apps, marketplaces, CRMs, and MVPs that made it past launch day, with 80% going on to raise investment. โš’๏ธ HOW I BUILD โœ”๏ธ150+ products as a Bubble Full Stack Developer, Bubble Developer: Bubble, JavaScript, Java, PHP, Angular, MySQL, Responsive Design, custom plugin development. โœ”๏ธ60+ AI systems as a Bubble AI Developer, No Code AI Developer: OpenAI GPT, Anthropic Claude, Gemini, RAG pipelines, AI agents, bubble ChatGPT integrations. โœ”๏ธ40+ automation ecosystems as a Bubble Automation Developer, No Code Automation Engineer: n8n, Zapier, Make, Airtable, Zoho, Twilio, Stripe, Meta APIs โ€” supporting $4M+ in client transaction volume. โœ”๏ธEngineering foundation: CS degree, Master's in Software Engineering, magento developer-level backend thinking applied as a Bubble No Code Developer. ๐Ÿšš WHERE I DELIVER โœ”๏ธAs a Bubble Developer, Bubble io Developer โ€” 150+ builds spanning Bubble MVP, Bubble SaaS Build, Bubble Marketplace, Bubble CRM Build, and Bubble Social Network projects generating $6M+ in combined client revenue. โœ”๏ธAs a Bubble Full Stack Developer, No Code Full Stack Developer โ€” database architecture, and workflow design inside Bubble, reducing dev costs by 30โ€“50% vs. traditional stacks. โœ”๏ธAs a Bubble MVP Developer, Investment-Ready MVP Builder โ€” 80% of MVPs shipped went on to raise pre-seed or seed funding. โœ”๏ธAs a Bubble AI Developer, AI Integration Developer โ€” GPT, Claude, and Gemini integrations powering chatbots, RAG search, and AI agents inside live Bubble apps, lifting user retention by 22โ€“30%. โœ”๏ธAs a Bubble API Developer, No Code Integration Specialist โ€” Stripe, Twilio, Meta, and custom third-party systems processing $4M+ in transactions across client platforms. โœ”๏ธAs a Bubble Automation Developer, Workflow Automation Engineer โ€” n8n, Zapier, and Make stacks handling lead capture, CRM routing, and internal ops automation, worth an estimated $500K+ in recovered labor cost. โœ”๏ธAs an AI-Enhanced No Code Developer, Bubble Prototype Developer โ€” using Lovable and modern AI tooling to accelerate Bubble development cycles by 40%, shortening time-to-revenue for clients. ๐Ÿ”ฅ ACHIEVEMENTS โœ”๏ธ12 years as a software engineer, 9+ years as a Bubble Developer, Bubble io Developer, No Code Full Stack Developer, 150+ applications shipped from prototype to production. โœ”๏ธ80% of MVPs built went on to raise investment โ€” pre-seed to Series A โ€” as a Bubble MVP Developer, Startup Bubble Developer trusted for fundable, demo-ready builds. โœ”๏ธ$6.2M+ in client-side business impact, $1.4M+ direct project revenue, โ‚ฌ780K paid MVP contracts, ยฃ18M annual business volume touched as a Bubble Full Stack Developer. โœ”๏ธ30,000+ active users across bubble io web applications where backend architecture and API integrations cut load times by 35%+ as a Bubble Developer. โœ”๏ธ60+ AI-powered Bubble apps built with OpenAI GPT, Anthropic Claude, and Gemini integrations as a Bubble AI Developer โ€” chatbots, RAG pipelines, and autonomous AI agents driving $900K+ in automation-linked savings. โœ”๏ธ40+ automation stacks delivered with n8n, Zapier, Make, Airtable, Zoho, and Twilio as a No Code Automation Developer, cutting manual workflow time by 50โ€“75% and saving clients an estimated 12,000+ operational hours. โœ”๏ธ35+ Bubble io SaaS Build and Bubble io Marketplace launches with Stripe and Meta API integrations, processing $4M+ in platform transaction volume as a Bubble No Code Developer, Bubble SaaS Developer. โœ”๏ธ3โ€“5 week average MVP to working prototype turnaround, 40% faster than industry standard, as a Bubble Prototype Developer, No Code Engineer. โœ”๏ธCS degree + Master's in Software Engineering โ€” technical depth in JavaScript, Java, PHP, Angular, MySQL backing every build as a Bubble Full Stack Developer. โœ”๏ธ99%+ delivery consistency across 25+ international clients in the US, UK, and Europe as a Bubble io Full Stack Developer, No Code Developer. ๐Ÿ† INDUSTRY IMPACT Startup MVPs, Fundable Prototypes, Pre-Seed to Series A builds โ€” 80% investment-raise rate as a Bubble MVP Developer, Investor-Ready Bubble Developer. SaaS Platform, Internal Tools, Bubble io SaaS Build โ€” 30,000+ users, $2.1M+ in ARR supported, 35%+ faster load times as a Bubble Full Stack Developer, SaaS Bubble Developer. B2B Marketplace, Bubble io Marketplace, Two-Sided Marketplace โ€” thousands of listings, $4M+ GMV processed, 25%+ better lead-to-conversion as a Bubble Marketplace Developer, No Code Developer. AI-Powered Platforms, AI Agent Systems, RAG Chatbots โ€” 60+ products, $900K+ in automation-driven cost savings as a Bubble AI Developer combining OpenAI, Claude, and Bubble backend logic. CRM Systems, Bubble io CRM Build, Workflow Automation โ€” 50โ€“75% less manual admin work, 12,000+ hours saved annually as a Bubble Automation Developer through n8n and Zapier automation.

  • API
  • Bubble.io
  • Web Development
  • Full-Stack Development
  • JavaScript
  • Web Application
  • Web Design
  • HTML5
  • PHP
  • Responsive Design
  • CSS
  • Database Design
  • Figma
  • WordPress
  • React
  • SQL
  • Node.js
  • Python
  • Vue.js
  • MERN Stack

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