✦ IT Consultant ✦ Product Development ✦ Software Development ✦ Full Stack Development ✦ Prompt Engineering ✦ Project Management ✦17+ Years Exp ❖ Engagement with DMRC (Feb 2021 - Present) Spearheading cutting-edge engagement strategies at DMRC, driving innovative solutions in alignment with company objectives. Collaborating seamlessly with cross-functional teams to define and execute strategies that enhance business operations and productivity. ❖ Leading UI architecture development, ensuring visually appealing and user-friendly interfaces. Collaborating closely with the DMRC team to translate business requirements into effective solutions. Leveraging expertise in ASP.NET MVC 4, jQuery, C#, HTML, CSS, and JavaScript to drive project success. ❖ Upwork Engagements (Oct 2015 - Present): Serving a diverse range of clients on Upwork, delivering top-tier solutions. Skillfully handling ASP.NET and Azure deployment projects, demonstrating proficiency in diverse technologies. ❖ Garnering stellar client feedback on Upwork, reflecting exceptional performance and dedication to meeting diverse project requirements. Demonstrating prowess as a problem solver by providing rapid and professional solutions to complex technical challenges. Earning a reputation for excellence in communication and exceeding client expectations across diverse projects and domains. ❖ JF Software (Nov 2021 - Jan 2023): Excelled in technically challenging projects, demonstrating agility in evolving requirements. Led the charge in working with advanced technologies, including GraphQL, Azure Functions, Cosmos DB, and Azure DevOps. Delivered impeccable C# code and collaborated effectively with cross-functional teams, contributing insights during stand-ups, sprint planning, and other key meetings. ❖ LetsBrief Journey (Oct 2015 - Nov 2019) Project Title: Innovative Customer Engagement Platform: Led the development of a groundbreaking customer engagement platform, spanning mobile and desktop, while designing user-friendly UI frameworks. 𝐏𝐫𝐢𝐦𝐚𝐫𝐲 𝐒𝐤𝐢𝐥𝐥𝐬𝐞𝐭𝐬 ASP.Net MVC, ASP.Net, C#, CSS, HTML, Ajax, Azure, React.js, JavaScript, jQuery, ChatGPT, Cognitive Search, Prompt Engineering, 𝐒𝐞𝐜𝐨𝐧𝐝𝐚𝐫𝐲 𝐒𝐤𝐢𝐥𝐥𝐬𝐞𝐭𝐬 SQL Server, Jenkins, Fortify (SAST), terraform, Vue.js, Rethink DB, LINQ, LINQ to SQL, Entity Framework, WCF, node.js, socket.io, ES6, CI/CD, Terraform, AWS, Infrastructure automation, DevOps, Shapespark 𝐀𝐥𝐬𝐨 𝐰𝐨𝐫𝐤𝐞𝐝 𝐰𝐢𝐭𝐡 JSON, SQL Server, Azure (Azure Web App, Azure VM, Azure Blob, Azure Notification Hub, Azure Web Jobs, Azure CDN, azure Ubuntu VM etc.), Android studio, Firebase Cloud Messaging, Web Components, notification API, Facebook Graph Api, worker role, LESS, Responsive Design, Phone gap/Cordova, Phone gap Build, Gulp, Browserify, Framework7, Raven DB, Pop3 & IMAP integration

I am committed and dedicated to my works and to my clients. My rules are i) Client satisfaction is the key to success, ii) Design everything before implementation and iii) Write good code with proper documentation. But I believe in exception and every rule has an exception. I have 17+ years of experience with C++/Qt/QML/Felgo, C#/VB/.NET/Xamarin/MAUI/Avalonia/iOS/Android, etc. I do also code in Node.js, Go, Rust and MongoDB for server/backend and API stuff. I have also achieved the 'Digia Certified Qt Developer' and 'Digia Certified Qt Specialist' certifications.

𝗣𝗿𝗼𝘃𝗲𝗻 𝘁𝗿𝗮𝗰𝗸 𝗿𝗲𝗰𝗼𝗿𝗱: 25+ production-ready apps built with Flutter & Firebase, published 14+ Native Android Apps, generating over 8 figures in revenue 𝗘𝘅𝗽𝗲𝗿𝘁 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆: CI/CD automation, clean architecture, and reliable app store publishing 𝗘𝘅𝘁𝗿𝗲𝗺𝗲𝗹𝘆 𝗥𝗲𝗹𝗶𝗮𝗯𝗹𝗲, 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝘃𝗲 𝗮𝗻𝗱 𝗙𝗮𝘀𝘁: Regular updates, clear milestones, and proactive collaboration 𝗘𝗻𝗱-𝘁𝗼-𝗲𝗻𝗱 𝘀𝘂𝗽𝗽𝗼𝗿𝘁: From Figma design to post-launch maintenance • Reliable support after launch I've had the privilege of propelling clients to significant milestones, including 2 production mobile apps with real users and measurable business impact. Some notable successes include: - A restaurant management app helping streamline dining operations and enhance customer engagement through a seamless mobile experience - A ride-sharing app supporting driver, customer workflows and transportation operations with a reliable, user-friendly mobile platform I’m a Flutter & Android (Kotlin) developer with 𝟳+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 delivering production-ready mobile apps. AI speed combined to deliver code that ships fast, feels premium, and scales without cracking. (Available for 2 projects in July 2026) • End-to-End Expertise: Flutter (iOS & Android) and native Android (Kotlin) development - from UI/UX design (Figma-to-code) to back-end integration and deployment. • Modern Architecture: Implement MVVM/Clean Architecture and Jetpack Compose for maintainable, scalable code, integrate Firebase, REST/GraphQL APIs, payment gateways (Stripe/PayPal) and 3rd-party SDKs. My core expertise: • Flutter App Development (Android & iOS) • Native Android development using Kotlin • MVP Development for Startups • AI-Powered Mobile Applications • Firebase Integration (Authentication, Firestore, Realtime Database, Cloud Messaging (FCM), Crashlytics, Remote Config, Cloud Storage ) • REST API & Third-Party SDK Integration (GraphQL, Node.js, Firebase Cloud Functions, Supabase, WebSockets, Twilio) • Payment Gateway Integration (Stripe, Razorpay, PayPal, Google Play Billing, Apple In-App Purchase, RevenueCat) • Maps, Geolocation & Real-Time Tracking (Google Maps SDK, geolocation, geofencing, live tracking, route optimization ) • Chat, Notifications & Real-Time Features • Figma to Flutter / Android • Google Play Store & Apple App Store Deployment I'm a mobile app developer who builds full apps from scratch in both Flutter and native Android (Kotlin), extends existing Flutter apps with custom native Kotlin modules when a plugin falls short, and has particular depth in two-sided marketplace apps, platforms connecting two different types of users (clients/professionals, hosts/guests, buyers/sellers) with booking, messaging, and payments built to work cleanly for both sides. Tech Stack: Flutter • Dart • Kotlin • Firebase • Supabase • REST APIs • SQLite • Room Database • Stripe • Google Maps • Push Notifications • Riverpod • BLoC • GetX • Jetpack Compose • Kotlin Coroutines & Flow • Hilt/Dagger • Android SDK • Git • GitHub • Figma Message me "AUDIT" - get a free 30-min technical consultation. During our session, we’ll:
 ✅ Explore your goals, technical requirements, or existing app review feedback ✅ Outline a roadmap with timelines and cost estimates
 ✅ Recommend the best tech stack and development approach 🤝 𝗟𝗘𝗧'𝗦 𝗪𝗢𝗥𝗞 𝗧𝗢𝗚𝗘𝗧𝗛𝗘𝗥

Turn Your Idea into a Scalable Web or AI Application, Fast. I help startups, entrepreneurs, and businesses transform their ideas into fully functional SaaS platforms, MVPs, and AI-powered web applications. With over a decade of experience in software development, I combine strong engineering fundamentals with AI-assisted development using tools like Replit and Claude to deliver high-quality solutions in weeks rather than months. While my background includes extensive work with ASP.NET and enterprise systems, I now specialize in modern full-stack development using Node.js, React, and cloud-native architectures, enabling rapid and cost-effective product launches. What I Can Build SaaS platforms from scratch AI-powered web applications and chatbots Custom business automation tools Admin dashboards and CRM systems Marketplace and booking platforms RESTful & third-party API integrations Why Clients Choose Me Rapid MVP Development: Launch your product in weeks, not months. AI-Enhanced Productivity: Faster delivery and cost efficiency using Replit and Claude. End-to-End Development: From idea validation to deployment. Scalable Architecture: Built with future growth in mind. Clear Communication & Reliability: Consistent updates and transparent processes. My Development Approach Discovery & Planning – Understanding your business goals. Rapid Prototyping – Building functional MVPs quickly. Iterative Development – Agile and feedback-driven. Deployment & Support – Seamless launch and post-launch assistance. Technologies & Tools Frontend: React, Next.js, Tailwind CSS Backend: Node.js, Express, ASP.NET Core Databases: MongoDB, PostgreSQL, MySQL, SQL Server AI & Automation: Claude AI, OpenAI APIs, Replit Cloud & DevOps: AWS, Azure, Docker, CI/CD Integrations: Stripe, Twilio, Firebase, SendGrid, Google APIs If you're looking for a developer who can translate your vision into a market-ready product, let’s connect and bring your idea to life. Send me a message to discuss your project!

Hi 👋 I’m Evgeny and I have 12+ years experience in software development and created 250+ web projects! I provide a full-stack and custom software development services including creation of SaaS solutions, AI integrations, custom website development, ERP / CRM automations and building MVP. You are very welcome to message me and get a quick consultation about software development, scoping your project and quote. Just send me a short brief and let's talk! I am also in charge of Zimalab web development team. We develop high-quality custom web apps, AI solutions, eCommerce platforms, MVPs, SaaS products, ERP/CRM systems, API integrations and business automations. We develop with PHP | PHP Symfony framework | PHP Laravel framework and Python FastApi and Python Django on backend and develop with React | React.js | Next.js | HTML | CSS and Javascript on frontend. We also use AWS | Digital Ocean | git | Github | Docker and many other tools. Key services Custom Web apps | SaaS | MVP development Websites | API integrations | API development Full-stack Web Developer | Backend Developer | Frontend Developer ERP | CRM | Automation | Dashboard Tech stack Backend - PHP | PHP Laravel framework | PHP Symfony framework | LAMP | Python | FastAPI | Django Frontend - React | React.js | Next.js | Material UI |Tailwind | Vue.js |Nuxt.js | TypeScript Responsive HTML | CSS | JavaScript | jQuery | Bootstrap Devops - AWS EC2 | AWS S3 | AWS Cloudfront | AWS Lambda | git | Github | Cloudflare | CDN Database - MySQL | MongoDB | PostgreSQL | Supabase Some of my projects: Custom Software Development of ERP | CRM solution for chain of car bodyshops with a custom dashboard on PHP | Symfony | HTML | CSS | Javascript Full-stack Web Development of SaaS solution for SMS marketing and API integrations with Shopify API and Twilio API on PHP | Symfony | HTML | CSS | Javascript and development of MVP which launched within 3 months Custom Software Development of ERP | CRM solution for chain of shoe repair stores with a dashboards, orders & store management, production reports on PHP | Symfony | HTML | CSS | Javascript Custom Software Development of Hotel Booking solution and API integrations with Cubilis | RezExchange | Smarthotels on PHP | Symfony | HTML | CSS | Javascript Full-stack Web Development of SaaS dashboard for Security Company on PHP | Symfony | Vue.js | HTML | CSS Backend and Frontend development of Video Directory Website for Media Company on PHP | Symfony | HTML | CSS | AWS S3 | ElasticSearch Custom CMS Development of Course Booking platform for chain of Linguaschools on PHP | Symfony | HTML | CSS | Javascript Backend and Frontend development of VC funds directory on PHP | Laravel | HTML | CSS | Javascript Why develop custom websites or SaaS solution with me: ✅ MVP in 2-4 months ✅ QA & project management is free of charge ✅ Professional full stack developers (4-7 years experience) ✅ Proven work history with 100% Job Success ⚡ ⚡ Boosting website development speed in 2x! For the large projects we develop user side, admin and API integrations in parallel by allocating frontend and backend developers. You will get more results with shorter timeline. Also we use existing UI theme or components for rapid MVP development of user interface. 📈 🎸 Expertise across industries Our website and web apps are already used in Education, Real Estate, HoReCa, Fintech, Art, Retail, Music, Marketing, Security, Distribution, Auto and many other business areas. 👍 👍 Recommended I have a proven work history and 100% job success rate. You may contact the references from USA, UK, Germany, Belgium, Denmark, Netherlands, Switzerland and Australia. Some of the clients already have been working with me for more than 10 years! Just send me a direct message to get a free consultation! Updated 7 Feb 2026

Expert software developer having 10 years of hands on experience with Angular, TypeScript, JavaScript, React.js, and Knockout.js. ✅ Attention to smallest of details ✅ Problem solving attitude ✅ Good design patterns and best practices follower ✅ Excellent communication skills ✅ Reliable and quick turnaround time 📌 Web Frontend Technologies: Angular, TypeScript, JavaScript, jQuery, React.js, HTML, CSS, Tailwind CSS, Bootstrap 📌 Programming Languages: C#, VB.NET, XAML, .NET Framework 📌 Cloud Based Technologies: Azure, Azure Functions, Azure DevOps, Service Bus, Event Grid, Azure Cosmos DB, Azure Blob Storage, AWS 📌 Client Side Technologies: HTML, CSS, Tailwind CSS, Bootstrap 📌 Database and ORM: MS SQL Server, Stored Procedures, MongoDB, Entity Framework, EF Core, Dapper, LINQ 📌 Third party library integration: Telerik Kendo, DevExpress/ DevExtreme, Google API, Social Media API Integration, Payment Gateways, Phone Call and SMS API, Twilio, SendGrid I also have good experience working with mobile application development for iOS and Android. I am well aware of entire process starting from development of mobile application to submission of final application to App Store/ Play Store. My core competency lies in complete end-to-end development and maintenance of small and large scale software development projects. I have good experience working with enterprise level n-tier, multi-tenant applications. My goal is to give turn around with quality and satisfactory work to build trust with my clients for long-term relationship. Thank you for taking the time to review my profile.

I am proficient in React Native, Swift, Kotlin, Java, SwiftUI, and BLE (Bluetooth Low Energy). What is this secret ingredient to make the job done? For me, it is an Attitude. And by Attitude, I mean 4 key principles I follow with my team: 🧑‍💻 Technology. I see technology as a powerful tool to achieve real business outcomes - not as a goal on its own. With a focus on intentional, results-driven development, I take full ownership of the technical direction and execution of every project. 🎯 Shared Goals. There’s nothing more rewarding than seeing something you’ve built grow and thrive. I value long-term partnerships with companies and startups, supporting their growth with scalable, thoughtfully crafted solutions. 🤗 Care. By deeply understanding your business objectives, I actively contribute to technology decisions and continuously evaluate the solutions I build to ensure they align with your goals. That’s what true partnership looks like. 🌊 Transparency. Challenges are part of any journey. While discussing problems isn’t always easy, open and honest communication enables faster, smarter decisions and builds the trust that strong partnerships are built on. Most of my projects are in the following domains: Utilities Healthcare and HIPAA projects SaaS platforms Asset management software Social and Media My expertise: Mobile app development ► Cross-platform mobile apps ► Native mobile apps for iOS and Android ► Apps for IoT with BLE (Bluetooth Low Energy) ► Apps for Crypto / Blockchain and NFT niche Tech stack: React Native, Swift, Kotlin and Java, SwiftUI, BLE (Bluetooth Low Energy). Web development ► SaaS platforms ► Web applications and tools ► Admin panel Tech stack: React.js, Django Templates, Flask, Typescript, Javascript, Python Tools: Figma, Sketch, Adobe Photoshop

I'm a Full Stack Developer specializing in building modern Web Applications, Mobile Apps, REST APIs, and Cloud-based solutions. I help startups, businesses, and enterprises transform ideas into secure, scalable, and production-ready software. From MVP development to enterprise applications, I deliver complete end-to-end solutions—from UI/UX implementation and backend development to deployment and long-term maintenance. 💻 Web Development * ASP.NET Core * C# * React.js * Next.js * Angular * TypeScript * JavaScript (ES6+) * HTML5 / CSS3 * Responsive UI Development 📱 Mobile App Development * React Native * Android App Development * iOS App Development * Cross-platform Mobile Applications * REST API Integration * Push Notifications * Firebase Integration * App Performance Optimization ⚙️ Backend Development * ASP.NET Core Web API * Node.js * NestJS * Express.js * REST APIs * Authentication (JWT) * Role-Based Access Control (RBAC) * Third-party API Integration * Payment Gateway Integration 🗄 Database * SQL Server * PostgreSQL * MySQL * MongoDB * Database Design * Query Optimization ☁️ Cloud & DevOps * Microsoft Azure * AWS * Docker * CI/CD Pipelines * Git & GitHub * Application Deployment 🚀 Projects I Build * SaaS Platforms * CRM & ERP Systems * E-commerce Applications * Mobile Apps (Android & iOS) * Admin Dashboards * Inventory Management Systems * Healthcare Applications * Business Automation Software * Internal Business Tools * API Integrations Why Clients Work With Me ✔ Full-Stack Web & Mobile Development ✔ Clean, Scalable Architecture ✔ Production-Ready Code ✔ Performance & Security Focused ✔ Fast Communication ✔ On-Time Delivery ✔ Long-Term Support I believe great software isn't just about writing code—it's about building reliable systems that solve real business problems. Whether you need a new web application, mobile app, API integration, or ongoing product development, I can help deliver a scalable solution that grows with your business. Let's discuss your project and turn your idea into a high-quality product.

Full-Stack Web & Mobile Expert - AI SaaS Developer - MVP to Production Apps - GPT & Claude - React, Next.js, Node.js, Python, TypeScript - React Native, Flutter Hello, I build AI-powered web and mobile applications that not only work but also scale, automate, and drive real business results. I am a 𝗧𝗼𝗽-𝗥𝗮𝘁𝗲𝗱 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with 𝟭4+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 of delivering intelligent, scalable solutions that combine modern web/mobile development with cutting-edge AI capabilities. AI & Intelligent Applications I specialize in building AI-integrated applications that enhance user experience and automate complex workflows: • Generative AI: GPT, Claude (Anthropic), LangChain, RAG systems, vector databases • AI Features: Chatbots, content generation, document analysis, semantic search, AI assistants • Automation & Agents: Workflow automation, AI agents, predictive analytics, recommendation systems • AI Tools: Cursor AI, Lovable, Bolt, Replit for rapid and intelligent development Full-Stack Web Development Building scalable, high-performance web applications: • Frontend: React, Next.js, TypeScript, Vue.js, Angular, ShadCN • Backend: Node.js, NestJS, Python (Django, FastAPI), C#, .NET Core • Architecture: REST APIs, GraphQL, microservices, serverless • Databases: PostgreSQL, MongoDB, MySQL, DynamoDB, Supabase, Firebase, Pinecone • Cloud & DevOps: AWS, Azure, GCP, Docker, CI/CD • No-Code Backend: Supabase, Appwrite, Firebase, Firestore Mobile App Development End-to-end mobile app solutions for iOS & Android: • React Native • Flutter • Ionic (Angular) • From wireframes & UI/UX to development and App Store / Play Store launch Industries & Solutions • AI & SaaS: Automation platforms, AI dashboards • FinTech: Financial analysis, reporting, fraud detection • Healthcare: HIPAA-compliant apps, AI diagnostics, ICD coding, telemedicine • E-commerce: Smart recommendations, inventory automation • Marketplaces: Multi-vendor platforms, booking systems, service marketplaces • EdTech: LMS, AI tutoring, personalized learning • On-demand services: Real-time tracking, route optimization Why Clients Choose Me • Top-Rated with proven delivery track record • MVP specialist - launch in weeks, not months • AI-first approach (not just add-on features) • Full-stack efficiency (Web + Mobile + AI in one) • Scalable, secure, enterprise-grade code • Clear, proactive communication If you are planning to build an AI product, MVP, or automation system, feel free to reach out. I would be happy to discuss your idea and suggest the best approach to move forward.

I am a Senior AI Engineer specializing in building production-ready Generative AI solutions that drive business growth. From custom LLM architectures and RAG pipelines to intelligent automation, I help businesses transform complex data into actionable intelligence using state-of-the-art AI technologies. Specialized Technical Stack - Custom LLM/SLM Development: Building and architecting Large and Small Language Models tailored for specific business logic. - Fine-tuning: Expertise in optimizing LLMs and SLMs (LoRA, QLoRA) for niche domain performance. - Reinforcement Learning: Implementing DPO, GRPO, RLHF, and DQN to align models with human preferences and complex decision-making. - Workflow Orchestration: Managing long-running, reliable AI workflows using Temporal. - MLOps Ecosystem: Production lifecycle management with MLflow, Weights & Biases, Prefect, Kubeflow, and SageMaker. - Vector Databases & RAG: High-performance retrieval using Pinecone, PGVector, FAISS, Chroma, and MongoDB Atlas. - Agentic Frameworks: Building complex reasoning chains with LangChain and LlamaIndex. - Advanced AI Solutions: Custom NLP, Recommendation Systems (with RL), and Time Series Forecasting. - Voice Intelligence: Deploying real-time Voice Agents using LiveKit, Retell, and Vapi. - No-Code Automations: Rapid integration and workflow connecting via N8N and Make. - Deep Learning Frameworks: Expert-level development in TensorFlow and PyTorch. Core Expertise -Generative AI & LLM Development I design and deploy sophisticated AI systems using OpenAI (GPT-4), Llama 3, and Anthropic Claude. My focus is on creating high-performance applications that utilize fine-tuning, advanced embeddings, and the LangChain framework to deliver human-like reasoning and precision. -RAG Pipelines & Vector Databases I specialize in Retrieval-Augmented Generation (RAG) to eliminate AI hallucinations. I have extensive experience with Pinecone, Chroma, and FAISS, ensuring your AI has real-time access to your proprietary data with high retrieval accuracy. -AI Agents & Workflow Automation Beyond simple chatbots, I build autonomous AI Agents capable of using tools, executing code via CodeInterpreter API, and managing complex multi-step tasks to automate your business operations. Technical Proficiency AI and Machine Learning - LLMs: OpenAI GPT-4o, Llama 3, Groq, Mistral, Gemini - Frameworks: LangChain, LlamaIndex, LangServe, LangSmith - Vector Databases: Pinecone, ChromaDB, FAISS, Qdrant - Specialized Tools: Flowise AI, LangFlow, HuggingFace Transformers - Machine Learning: TensorFlow, Keras, PyTorch Data Engineering & OCR - Processing: Pandas, NumPy, Matplotlib, Seaborn - Web Scraping: Python, BeautifulSoup4, Selenium - Document Intelligence: OCR (Google Vision API, Pytesseract), PDF Extraction (pdfminer, fitz, tabula) Cloud & Deployment - Platforms: AWS (Sagemaker, Lambda), Google Cloud (Vertex AI), Azure, Heroku - Infrastructure: Node.js, Express.js, MongoDB, MySQL, Git, Docker Why me? - Strategic Solution Architecting: I don’t just write code; I build scalable architectures. I focus on cost-effective token management and low-latency responses to ensure your project is commercially viable and reliable. - Transparent and Proactive Communication: I provide regular updates, documentation, and strategic insights. My goal is a long-term partnership where I act as your technical thought partner, helping you stay ahead of the rapid AI curve. - Flexible and Result-Driven: I am available for full-time commitment and offer discounted rates for non-profit organizations and the education sector. I work within your specific budget and timeline to deliver high-ROI results. Are you ready to build a production-grade AI solution? Click the "Invite to Job" button or send a message to discuss your project requirements and how we can achieve your business goals.