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$30/hr
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$20K+ earned
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Hi!
Need a reliable full-stack developer who can build, scale, and deliver fast? Let’s talk about your idea.
I’m a full-stack JavaScript developer helping teams and founders turn product ideas into solid, production-ready platforms. I’ve built web applications for SaaS, Real Estate, E-Commerce, CRM/ERP, and IoT
🚀 Tech Stack I Work With
Frontend: React.js, Next.js, TypeScript, JavaScript (ES6+), Redux, HTML5, CSS3, Tailwind CSS, Material UI, Chakra UI, Ant Design, Figma
Backend: Node.js, Express.js, Nest.js, RESTful API Development, GraphQL, API Integration, MongoDB, MySQL, PostgreSQL
DevOps: AWS (Lambda, S3, EC2, Amplify, CloudFormation, SQS), Docker, CI/CD pipelines, GitHub, GitLab, Bitbucket
Workflow: Agile (Scrum/Kanban) with Jira, Asana, Trello, ClickUp
Recently, I’ve also been involved in AI Agent Development and Artificial Intelligence integrations, where our team built data-driven automation features that brought real efficiency to client systems.
📈 What I Deliver:
• Fast, scalable, and maintainable full-stack web applications
• Pixel-perfect UI with clean, reusable components
• Secure and reliable API integrations (Stripe, PayPal, custom backends)
• Optimized databases and smooth AWS deployments
• Clear communication and fast iteration cycles
⭐ Why Clients Choose Me:
• 8+ years in full-stack JavaScript development, building scalable SaaS, E-Commerce, and enterprise platforms
• Strong hands-on experience with both front-end (React, Next.js, TypeScript) and back-end (Node.js, Express, Nest.js)
• Clean, maintainable code with attention to performance and user experience
• API design, integration, and database optimization (MongoDB, MySQL, PostgreSQL, GraphQL)
• Reliable, responsive communication and fast delivery cycles
• Experience working with startups, SaaS companies, and enterprises
• Smooth DevOps and deployments with AWS, Docker, and CI/CD pipelines
🧠 Tech Highlights & Keywords
JavaScript, React, Node.js, TypeScript, API, API Development, API Integration, RESTful API, Amazon Web Services, AWS, CSS, CSS3, HTML, HTML5, Web Development, Web Application, Full-Stack Development, MongoDB, MySQL, PostgreSQL, Vue.js, Tailwind CSS, Web Design, Figma, jQuery, React Native, Front-End Development, Landing Page, AI Agent Development, Artificial Intelligence.
Looking for a senior full-stack dev who can build it right from day one?
So, let's chat and I’ll make sure your next release is stable, fast, and ready to scale.
Associated with
Rezet
$400K+
earned
$39/hr
$0 earned
Available now
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Senior Full Stack Developer | Laravel, PHP, React, Next.js, Vue, Node.js, MySQL, API, AI, AWS
Hi! I’m a Senior Full Stack Developer with extensive experience in Full Stack development. As a Full Stack engineer, I specialize in Laravel, PHP, React, Next.js, Vue, Node.js, MySQL, API, AI, and AWS. I offer a complete Full Stack build under one roof, unifying all layers seamlessly.
Backend: Laravel, PHP, Node.js
Laravel is my primary framework, and I’ve successfully built SaaS apps, CRMs, and e-commerce platforms using Laravel. I ensure every Laravel project is clean, tested, and production-ready. I frequently build custom Laravel packages, upgrade legacy code, and work with tools like Laravel queues, Laravel Nova, and Laravel Sanctum. Laravel 11 is my default framework.
My PHP expertise includes modern PHP 8+ coding, secure PHP practices, tuning, and legacy refactoring. I write clean, SOLID PHP code and deliver proven PHP solutions. I am proficient in PHP testing using PHPUnit, profiling with Xdebug, and enforcing standards with PHPStan.
Frontend: React, Next.js, Vue
React is my go-to for building dashboards, SPAs, and component libraries using hooks, Redux, and Tailwind. I prioritize accessibility, testing, and performance in every React application. I also work with React Native, React Server Components, and React TypeScript, utilizing modern React 19 patterns.
I use Next.js to bridge React with production. My experience with Next.js includes building e-commerce sites, dashboards, and SEO-optimized pages, leveraging App Router, Server Components, SSR, and ISR. The latest Next.js 14 and 15 features, like Server Actions, are an integral part of my workflow.
Vue is another of my strengths. I have built Vue 3 apps, Nuxt-based sites, and admin panels. The Vue + Laravel combination is a favorite. I regularly use Nuxt 3 for SSR and Pinia for state management, as well as VueUse for composables. Migrating from Vue 2 to Vue 3 is another service I offer.
MySQL, API, AI, AWS
MySQL is my database of choice. I specialize in designing MySQL schemas, optimizing queries, and tuning indexes for maximum performance. I handle MySQL migrations, replication, and backups, as well as complex joins and stored procedures. Whether it’s AWS RDS, Aurora, or self-hosted, I manage it all.
API design is at the core of my work. I build robust REST APIs, GraphQL schemas, and WebSocket services, ensuring each API is well-documented and versioned. I integrate payment APIs, messaging APIs, and CRM services, securing them with JWT and OAuth2. I also design API gateways, implement rate limits, and optimize API caching.
I integrate AI technologies into applications, including AI chatbots, search engines, and document analysis using top AI models and vector databases. From RAG pipelines to streaming AI responses, I make AI an integral part of your workflow. Whether for AI automation, content generation, or powered search, I provide real-world AI solutions. My AI toolkit includes modern AI APIs and multi-modal agents.
AWS powers my cloud deployments. I work with AWS EC2, S3, RDS, Lambda, and ECS, ensuring smooth CI/CD pipelines with Terraform for Infrastructure as Code. AWS security (IAM, VPC, KMS) is at the core of my deployment process, ensuring your app is secure. I deploy Laravel, Node.js, Next.js, and Vue apps to AWS, utilizing auto-scaling and CloudWatch for monitoring.
Why Me?
I provide true Full Stack ownership, handling your entire stack. I bring a Full Stack mindset to every project, ensuring deep expertise across all layers. I deliver clean, tested code with clear communication and on-time delivery.
Let’s Talk
If you need a Full Stack developer skilled in Laravel, PHP, React, Next.js, Vue, Node.js, MySQL, API, AI, or AWS, send me your project details. I’ll reply within hours and we can start building your next Full Stack product — the Full Stack way, done right.
$40/hr
100%
Job Success
$300K+ earned
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⭐️ Upwork Top-Rated Plus Web&Mobile Development Agency⭐️ 🚀 22,000+ Hours on Upwork | 👨🏻💻 12+ Years of Experience | 💯 100% Client Satisfaction
At Syntech Software, we specialize in helping businesses grow with AI & automation in building tailored digital solutions from the ground up. With 12+ years of experience, we help startups and enterprises automate operations, launch MVPs fast, and scale with confidence.
Whether you need a powerful web app, SaaS platforms, a custom ERP/CRM, or an optimized DevOps infrastructure — our cross-functional team handles it end-to-end.
🌟 Why Clients Choose Syntech Software
• 12+ years of experience delivering secure, scalable software, web & mobile apps
• Full-cycle development — from business analysis and UI/UX design to DevOps and QA
• Fast MVP delivery to get you to market quickly
• Strong business analysis to define goals before writing code
• QA-tested solutions with manual and automated coverage
• Transparent, agile communication and realistic timelines
💼 Our Core Services
➙ Business Analysis & Research
• Market & competitor analysis
• Requirements gathering & SRS creation
• User stories and product documentation
➙ Custom Software Development
• Web and mobile apps built from scratch
• Scalable, secure backends with REST,FAST & WebSocket APIs
• Real-time features: live chat, notifications, updates
• Modular, maintainable architecture for long-term growth
• Admin dashboards, client portals, Saas, CRMs, ERPs, BPMs, analytics panels
• API integrations with 3rd-party services (Stripe, Twilio, SendGrid, Firebase, Google Maps, ChatGPT, HubSpot, Slack, PayPal, Zoom, Plaid, and more)
• Agile development with short sprints and fast delivery
• Clean, well-documented code ready for scaling or hand-off
➙ UI/UX & Design
• User-centered web/app interface design
• Brand identity, logo & visual assets
➙ DevOps & Infrastructure
• AWS, GCP, Azure, DigitalOcean
• Docker, Kubernetes, Jenkins, CI/CD pipelines
• Monitoring, logging, backups & scaling
➙ QA & Testing
• Manual and automated testing
• Tools: Selenium, TestRail, Postman
Our Technology Stack
• Backend: Python (Django, Flask, Falcon), REST API, FAST API, WebSockets
• Frontend: JavaScript, React, Redux, Next.js, Tailwind CSS, Ant Design
• Mobile: React Native
• DevOps: AWS, GCP, DigitalOcean, Docker, Kubernetes, Jenkins, Travis
• Design: Figma, Adobe XD, Illustrator
• Testing: Selenium, TestRail
🎯 INDUSTRİES WE SERVE
⚙️ Automation
• Saas platforms
• ERP & CRM development
• Business process management
• IoT system integrations
🛍️ Marketplaces
• Custom multi-vendor platforms for products or services
• Payment & calendar integration for seamless transactions
• Role-based vendor and admin dashboards
• Smart search, filters, and review systems
• Built-in monetization: commissions, subscriptions, etc.
📡 Digital Communication
• Video & audio call platforms with real-time features (WebRTC, Twilio,AWS Chime, Zoom, Agora, Vonage)
• Booking, consultation & scheduling tools
• Advanced chat systems with AI-powered chatbots
• Secure messaging, file sharing & push notifications
• Cross-platform apps (web & mobile) with real-time sync
• Scalable architecture for high user traffic
💰 Fintech
• Tokenization platforms
• Trading and investment management tools
• Loan management systems
• Stock & Crypto Trading
• Portfolio Management
💬 Let’s Build Something Great We don’t just write code — we solve business problems with thoughtfully built software. Whether you're launching a new product or upgrading an existing one, we’re ready to help.
📨 Reach out now to schedule a free consultation and explore how Syntech Software can power your next big idea.
Associated with
Syntech Software
$800K+
earned
$35/hr
100%
Job Success
$6K+ earned
Offers consultations
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If you’re ready to turn your MVP idea into a reality, I’m here to make it happen with Bubble.io—the ultimate no-code solution for efficient, rapid development. As a certified Bubble.io developer with 2+ years on the platform, I specialize in helping startups and businesses launch MVPs quickly and affordably, without compromising on quality or functionality.
With over 4 years in web development, including experience with WordPress and Laravel, I’m part of Devix Digital—a dedicated team of developers, designers, and project managers. Together, we build high-performing web applications and e-commerce sites that are responsive, modern, and fully optimized for user engagement.
Why Bubble.io is Perfect for Your MVP
Bubble.io offers a powerful no-code platform to quickly bring your vision to life, making it ideal for testing and iterating in the market. With my certification and experience, I can help you build a functional, scalable MVP without the high costs and long timelines of traditional development.
What I Can Offer You:
1️⃣ Bubble.io Expertise – As a certified Bubble.io developer, I’ll leverage no-code power to create a fully-featured, scalable web app that brings your vision to life.
2️⃣ Custom WordPress Development – From e-commerce to corporate applications, I bring 4+ years of experience in custom themes, plugins, and complex integrations to meet your unique needs.
3️⃣ Laravel Proficiency – For projects that require a robust backend, I’m skilled in Laravel, building high-performance web applications with tailored functionalities.
4️⃣ Optimized Performance – I prioritize fast loading times and smooth user experiences through database optimization, code efficiency, and caching strategies.
5️⃣ Security & Compliance – Security is key. I implement best practices to protect your application and ensure compliance with industry standards.
My Technology Stack:
⏺ Bubble.io – Certified expert in no-code development
⏺ WordPress, Laravel, PHP, MySQL
⏺ RESTful APIs, JSON
⏺ Git version control
⏺ HTML, CSS, JavaScript, JQuery
Whether you’re looking for a fast, effective way to launch your MVP or a dependable partner for your long-term project, I’m here to support you. Message me today to discuss your project requirements, and I’ll be happy to provide a detailed proposal and quote. Let’s make your vision a reality!
$40/hr
100%
Job Success
$100 earned
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I am a blockchain expert and full stack developer proficient in Solidity, Rust, React.js, Next.js, Node.js and MongoDB. I specialize in creating blockchain services, cross-platform software, AI-driven solutions, commercial applications, and decentralized applications, with a focus on delivering user-friendly and innovative web products. As a leader of back-end, blockchain, and DevOps teams comprising 7+ developers, I have successfully contributed to numerous high-tech projects, solving complex system challenges and identifying opportunities for improvement. My passion lies in leveraging cutting-edge technology to build impactful and efficient solutions.
Yaroslav K.
has worked
.
$40/hr
100%
Job Success
$10K+ earned
Available now
Offers consultations
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📈 My last landing page increased conversions by 60% in the first month. A healthcare monorepo app I optimized now loads 3x faster and reduced bugs by 70%.
100% Job Success | ⭐⭐⭐⭐⭐ Feedback | Clients keep coming back for more
🧑💻 4+ 𝘆𝗲𝗮𝗿𝘀 of proven experience building fintech, landing websites, SaaS, and healthcare products.
Clients value me for speed, proactive communication, and results that require minimal revisions.
⭐️ Max Prosperi:
"⭐⭐⭐⭐⭐ Nicholas (Mykola) jumped into a complex codebase with minimal onboarding and delivered high-quality work at impressive speed. Clear communication, thoughtful commits, reliable delivery."
⭐️ Aleks Zimak:
"⭐⭐⭐⭐⭐ Nicholas (Mykola) quickly turned complex Figma designs into clean, responsive code. His proactive approach, attention to detail, and fast delivery made collaboration seamless. Highly recommend!"
⭐️ Ilan Cohen:
"⭐⭐⭐⭐⭐ "Excellent freelancer! I worked with Mykola on securing my website access, as I had a mess between Github, servers, Lovable access, and more. Mykola reordered everything very quickly, and thanks to him, I can work again on my site!"
🛠 What I deliver:
• Responsive SPAs & dashboards from Figma
• SEO-ready Next.js apps (App Router)
• Cross-platform mobile apps (React Native)
• Fintech/Web3 integrations (Stripe, EexSwap, EexWallet)
• APIs, authentication, WebSockets, analytics
• Clean code, tests, error handling & i18n
📌 Workflow:
1. Requirement analysis & consultation
2. UI/UX implementation with clean code
3. Development in scalable architecture
4. Weekly updates & proactive feedback
5. Testing, optimization & deployment
🔥 If you need a reliable frontend partner with proven results — click "𝗜𝗻𝘃𝗶𝘁𝗲" on my profile, and let’s build something great.
Best regards,
Mykola S.
Front-End Development React, Front-End Development Next.Js, Front-End Development TypeScript, Front-End Development JavaScript, Front-End Development Tailwind CSS, Front-End Development Chakra UI, Front-End Development MUI, Front-End Development Mantine, Front-End Development Shadcn UI, Front-End Development Ant Design, Front-End Development Bootstrap, Front-End Development Responsive Design, Front-End Development Landing Pages, Front-End Development Dashboards, Front-End Development Admin Panels, Front-End Development SaaS Apps, Front-End Development Fintech Apps, Front-End Development Web3 Apps, Front-End Development Healthcare Apps, Front-End Development Time Tracking Apps, Front-End Development Multilingual Websites, Front-End Development i18next, Front-End Development Accessibility, Front-End Development SEO-Ready Apps, Front-End Development Server-Side Rendering, Front-End Development Static Site Generation, Front-End Development App Router Next.Js, Front-End Development State Management, Front-End Development React Query, Front-End Development Redux Toolkit, Front-End Development Zustand, Front-End Development Context API, Front-End Development Authentication, Front-End Development JWT Auth, Front-End Development NextAuth.Js, Front-End Development API Integration, Front-End Development REST API, Front-End Development GraphQL, Front-End Development Supabase, Front-End Development Firebase, Front-End Development PostgreSQL, Front-End Development MongoDB, Front-End Development Prisma ORM, Front-End Development MySQL, Front-End Development Real-Time Apps, Front-End Development WebSocket, Front-End Development SocketIO, Front-End Development Stripe Integration, Front-End Development Payment Gateway, Front-End Development Subscription Billing, Front-End Development Crypto Wallet, Front-End Development E-Wallet, Front-End Development Blockchain Frontend, Front-End Development Smart Contracts, Front-End Development dApp UI, Front-End Development Fintech Multicurrency, Front-End Development Data Visualization, Front-End Development Recharts, Front-End Development Chart.Js, Front-End Development Analytics Dashboards, Front-End Development Reports System, Front-End Development Jest Testing, Front-End Development Cypress Testing, Front-End Development React Testing Library, Front-End Development Unit Testing, Front-End Development E2E Testing, Front-End Development Error Boundaries, Front-End Development Performance Optimization, Front-End Development Lighthouse Optimization, Front-End Development Lazy Loading, Front-End Development Image Optimization, Front-End Development CDN Integration, Front-End Development AWS EC2, Front-End Development Vercel, Front-End Development Netlify, Front-End Development CI/CD GitHub Actions, Front-End Development Monorepo Nx, Front-End Development Turborepo, Front-End Development Module Federation, Front-End Development Framer Motion, Front-End Development Mobile Apps, Front-End Development React Native, Front-End Development Expo, Front-End Development Tamagui, Front-End Development React Navigation, Front-End Development Cross-Platform Apps, Front-End Development App Store, Front-End Development Google Play, Front-End Development
$50/hr
$1K earned
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Top-Rated JS/TS/Python Full-Stack Developer 🚀
Hello! I’m a passionate and experienced JS/TS/Python Developer with more than 14 years of expertise in full-stack development. My robust skill set spans both front-end and back-end technologies, enabling me to create seamless and high-performing web applications tailored to your needs. 💻
Why Choose Me?
Here’s what I bring to the table:
Node.js, Python 🐍
HTML5/CSS3 🎨
JavaScript, TypeScript, React.js ⚛️
Elastic Search, Web3.js 🌐
Angular, Vue.js 🌟
Shell Script 🐚
Microservice Architecture 🏗
AWS ☁️
AI/OpenAI Technologies 🤖
Scrum, Agile 📈
OOP, Docker 🐳
Redis, Nats, Kafka, WebSockets ⚡️
REST API 🔗
PostgreSQL, MySQL, Pinecone, Cassandra, DynamoDB, MongoDB, GraphQL 📊
SSH 🔒
If you’re looking for a reliable developer who can deliver comprehensive web solutions and harness cutting-edge technologies, let's connect! 🤝 I’m here to help bring your vision to life.
Oleh V.
has worked
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$30/hr
$40K+ earned
Offers consultations
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👋 Hi there, and welcome to my profile!
I’m a seasoned 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 𝗲𝘅𝗽𝗲𝗿𝘁 with over a decade of experience 🌟 and a proven track record of helping businesses and individuals achieve 𝗲𝘅𝗰𝗲𝗽𝘁𝗶𝗼𝗻𝗮𝗹 𝗼𝗻𝗹𝗶𝗻𝗲 𝘀𝘂𝗰𝗰𝗲𝘀𝘀 🚀. Since 2013, earning the 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 𝗯𝗮𝗱𝗴𝗲 🏆 and delivering results-driven solutions to a diverse client base.
🤔 𝐇𝐨𝐰 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮 👇
🎨 𝐂𝐮𝐬𝐭𝐨𝐦 𝐓𝐡𝐞𝐦𝐞 𝐃𝐞𝐬𝐢𝐠𝐧: Сreating a unique WordPress theme tailored to specific brand needs. It includes custom layouts, styles, and features beyond standard themes, ensuring a personalized, scalable, and SEO-friendly website.
📱 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐯𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: I develop themes optimized for all devices, providing a seamless shopping experience across desktops, tablets, and smartphones.
⚡ 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧: I focus on speed and efficiency, creating themes that load quickly to improve user experience and search engine rankings.
🔍 𝐒𝐄𝐎-𝐅𝐫𝐢𝐞𝐧𝐝𝐥𝐲 𝐒𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞: My themes are built with clean code and SEO best practices, enhancing your store's visibility in search engine results.
🔌 𝐏𝐥𝐮𝐠𝐢𝐧 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: I ensure compatibility with essential plugins, extending your store's functionality without compromising performance.
🛠️ 𝐎𝐧𝐠𝐨𝐢𝐧𝐠 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐚𝐧𝐝 𝐌𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞: I provide continuous support to keep your WooCommerce store updated, secure, and running smoothly.
By partnering with me, you can elevate your e-commerce business with a tailor-made, high-performing, and user-friendly WooCommerce store. 🚀
🚀 I enjoy collaborating with companies and startups that offer exciting, challenging tasks. My goal is to achieve remarkable results while continuously learning and growing.
✅ 𝐘𝐨𝐮𝐫 𝐑𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐏𝐚𝐫𝐭𝐧𝐞𝐫. If you’re looking for a highly responsible specialist who pays close attention to project details, stays in touch, and consistently meets deadlines — you’ve found the right person!
𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐓𝐚𝐠𝐬
🌐 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭:
🔹 HTML5, CSS3 (SASS, LESS, SCSS), JavaScript (ES5, ES6+), jQuery, AJAX
🔹 Bootstrap (2-5), Materialize, Foundation, Gulp, Npm
🖥️ 𝐁𝐚𝐜𝐤-𝐄𝐧𝐝 & 𝐂𝐌𝐒:
🔸 PHP (WordPress, WooCommerce, ACF PRO, Gutenberg)
🔸 LAMP Stack, APIs (REST, GraphQL), Headless WP + Vue.js
🔧 𝐓𝐨𝐨𝐥𝐬 & 𝐇𝐨𝐬𝐭𝐢𝐧𝐠:
⚙️ Git (GitHub, BitBucket), Hostinger, DigitalOcean
💾 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬:
📊 MySQL, PostgreSQL, MongoDB
🛒 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬:
💰 WooCommerce, Custom Plugins, Shopify, SaaS
✨𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐞𝐝 𝐒𝐤𝐢𝐥𝐥𝐬:
🚀 Front-End & Full-Stack Development, Responsive Design
📩 𝐋𝐞𝐭’𝐬 𝐂𝐨𝐧𝐧𝐞𝐜𝐭! Feel free to reach out. Let's talk about your project and transform your ideas into outstanding results! 💪
Associated with
OmiSoft 🏆 Multi-awarded AI & Web3 Agency
$100K+
earned
$29.99/hr
100%
Job Success
$100K+ earned
Available now
Start of list.
End of list.
Hey there! Looking for a skilled developer who actually gets things done? Let’s skip the hassle and get straight to work. No fluff, no wasted time – just clean, efficient, and scalable code.
I’m Denis, a Full Stack Developer with a solid track record of delivering high-quality web solutions that don’t just work but work brilliantly.
As a full-stack developer, I aim to deliver clean, maintainable, and scalable code to ensure your product works efficiently. I work with PHP, Laravel, and REST APIs for back-end development, and I use GraphQL when more flexible data querying is needed. For front-end development, I rely on React.js, Next.js, and TypeScript, using Material UI for creating user-friendly interfaces. I have experience with databases like MySQL, PostgreSQL, MongoDB, and DynamoDB to handle data storage and management.
On the cloud and DevOps side, I use AWS services such as EC2, S3, and Lambda, along with Docker for containerization. I also have experience with Google Cloud Platform. I integrate third-party APIs and Webhooks when necessary to extend functionality. To keep things organized, I rely on tools like Git, GitHub, GitLab, Jira, Trello, ClickUp, and Asana for version control and project management, ensuring smooth collaboration throughout the development process.
I’m ready to assist with projects in e-commerce, SaaS, fintech, healthcare, real estate, education, CRM and more. If you have a unique idea, I’m always up for a challenge!
⭐ My hall of fame:
💬 "Extremely skilled in PHP and Laravel, completely autonomous, and able to adapt to new technologies. The speed and quality of his work were impressive!"
💬 "Highly recommended! Denis is not only technically skilled but also great at communication. Quick responses and always available during working hours make the development process smooth."
Debating your options? Or ready to talk details and start working?
Just hit add my profile to favorites and reach out!
Denis
Upfated: February, 23, 2025
Denis Y.
has worked
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$55/hr
100%
Job Success
$2M+ earned
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End of list.
I help businesses build scalable software platforms that ship reliably — without brittle integrations and architecture debt.
Over the past 15+ years, I’ve designed and delivered full‑cycle software: solution architecture, Python backends (FastAPI/Django), modern web frontends (React/TypeScript), and cloud deployments for products that need to run securely in production.
I focus on systems that stay maintainable as requirements evolve: clear system design, API‑first integration patterns, performance and observability baselines, and delivery practices that keep releases predictable.
💡 How I approach projects
– Architecture-first: Software Architecture and System Design for scalability, modularity, and long-term maintainability from day one
– Integrations built in: API contracts, versioning, and reliable third‑party integrations (payments, CRMs/ERPs, external services)
– Full-stack delivery: frontend, backend, APIs, data workflows, cloud infrastructure, and DevOps
– Production-grade DevOps: CI/CD pipelines, Docker, Kubernetes, AWS/Azure deployments, monitoring, and performance tuning
– End-to-end ownership: from discovery and technical planning through launch, iteration, and ongoing support
✅ I’m a good fit if you need to:
🔹 Design or refactor software architecture for a complex product
🔹 Build a Python backend with clean REST/GraphQL APIs
🔹 Deliver a full‑stack web application with React/TypeScript and reliable integrations
🔹 Modernize a legacy system without breaking production
🔹 Improve reliability: security, performance, observability, and CI/CD maturity
🏗️ What I know deeply
– Software Architecture, Solution Architecture, System Design
– Backend engineering in Python (FastAPI, Django) and API development
– Full‑stack web delivery (React, TypeScript) with integration-first thinking
– Scalability, security, and reliability for production systems
– Cloud modernization and operational readiness
⚙️ Technical toolkit
– Architecture & leadership: Software Architecture, Solution Architecture, System Design, Technical Leadership
– APIs & integrations: API Development, REST, GraphQL, third‑party integrations
– Backend: Python, FastAPI, Django, Flask
– Frontend: React, TypeScript
– Data & storage: PostgreSQL (plus other SQL/NoSQL when required)
– Cloud & DevOps: AWS, Azure, Docker, Kubernetes, CI/CD
– Security & privacy: secure-by-design practices; compliance-aware delivery (HIPAA-aligned environments when relevant)
🔒 Also worked extensively on
– Integration-heavy enterprise systems and internal platforms
– Data workflows and event-driven processing (queues/streams when applicable)
– Regulated and privacy‑sensitive products as a secondary domain (healthcare, telemedicine, interoperability requirements)
If you need a senior architect who can design and deliver a scalable product foundation — let’s discuss your scope and constraints.