Talent badge filter
Skills filter
Suralal S.
$30/hr
100% Job Success
$200K+ earned
Available now
Offers consultations
Start of list.
End of list.
As a Top Rated Plus engineering partner with over 14 years of hands-on experience, I bridge the gap between robust product engineering, high-throughput data infrastructure, and cutting-edge GenAI implementations. I have built dozens of technically successful applications from scratch, scaled secure data pipelines, and transitioned legacy monoliths into high-performance, serverless microservices used by Fortune 500 companies. My philosophy centers on structural risk mitigation for enterprise projects: I prioritize SOLID design principles, Test-Driven Development (TDD), Agile/Scrum methodologies, clean architecture, cost efficiency, and rigorous documentation. Having successfully delivered projects across heavily regulated industries - including eCommerce, healthcare, and SaaS platforms - I ensure your systems run smoothly, scale infinitely, and optimize cloud spend. --------------------------------------------------------------------------------------------------------------------- WHAT I DO & HOW I CAN HELP YOUR TEAM: AI, LLMs, & Intelligent Agents: ~ Architecting advanced retrieval-augmented generation (RAG) pipelines, building context-aware AI Agents, and integrating Large Language Models (LLMs) safely into enterprise ecosystems. Full-Stack Product Architecture: ~ Designing and engineering scalable web and mobile solutions from scratch. Expert in the MERN/MEAN stack, serverless microservices, and modern state management. Data Engineering & Analytics Stack: ~ Building comprehensive modern data stacks, managing automated ETL/ELT pipelines, and deploying cost-effective cloud data warehouses. Business Intelligence (BI) & Advanced Analytics: ~ Turning complex raw data into actionable enterprise insights via custom dashboards, real-time analytics engineering, and advanced modeling. DevOps, Infrastructure & Team Leadership: ~ Managing CI/CD deployment pipelines, containerization, and Infrastructure as Code (IaC). Collaborative partner to PMs, designers, and clients; experienced in mentoring, interviewing, educating, and code reviews. --------------------------------------------------------------------------------------------------------------------- TECH STACK & KEYWORD MATRIX: 1. Generative AI & Data Engineering [ AI/LLM Execution ]: GenAI, LLMs, RAG, AI Agents, Prompt Engineering, Vector Databases [ Data Warehousing & Platforms ]: Snowflake, Databricks, BigQuery, AWS EMR, Data Lakes [ ETL/ELT Tools ]: dbt, Apache Spark, Pandas, Pentaho, Talend, Informatica, Snaplogic [ BI & Analytics ]: Power BI, Tableau, AWS QuickSight, Looker Studio 2. Full-Stack Frameworks & Languages [ Core Languages ]: Python, TypeScript, JavaScript (ES13+), Go, Bash [ Frontend Ecosystem ]: React, Next.js, Angular, Vue.js, React Native, Redux, Zustand, HTML5, CSS/SCSS, Webpack, Babel, Responsive Web Design, SEO [ Backend Ecosystem ]: Node.js, NestJS, Express.js, tRPC, Apollo Server 3. Infrastructure, DevOps & Databases [ Cloud Architecture ]: AWS (Lambda, SQS, ECS, S3, EC2, API Gateway, CDK), Azure, Google Cloud Platform (GCP) [ Infrastructure as Code & DevOps ]: Terraform, CloudFormation, Docker, CI/CD Pipelines, Serverless Framework, Nginx, Nx Monorepo, Lerna [ APIs & Messaging ]: GraphQL, REST, gRPC, WebSockets, Apache Kafka, RabbitMQ [ Databases & ORMs ]: PostgreSQL, MySQL, MongoDB, Firebase, Redis, Prisma 4. Team & Collaboration Tools [ Methodologies ]: Agile, Scrum, Design Principles, Design Patterns, SOLID, TDD, Clean Code [ Platforms ]: Git, GitHub, Jira, Slack, Zoom, Technical Planning, Estimating, Mentoring, Code Reviews, Interviewing --------------------------------------------------------------------------------------------------------------------- PROJECT LIFECYCLE ROLES AVAILABLE FOR: - Principal AI / Data Engineer - Senior Full-Stack Developer & Software Architect - Technical Consultant & Business Intelligence Specialist - Mobile Development Lead (Web & Mobile Solutions) --------------------------------------------------------------------------------------------------------------------- Daily Availability: 8-12 Hours/Day (Depending on project scope, role, and comfortability) If you have an active project requiring robust data architecture, seamless full-stack execution, and a reliable delivery partner, let's connect and discuss how to bring your solution to life.
Supriya K.
$24.99/hr
96% Job Success
$100K+ earned
Offers consultations
Start of list.
End of list.
Most businesses don’t fail because of bad ideas, they fail because of slow execution. As a Senior Full Stack Developer, I help teams build and launch scalable web applications without delays, rework, or messy code. With 8+ years of experience as a Full Stack MERN Stack Developer and MEAN Stack Developer who uses AI-assisted workflows to ship production-ready SaaS and web applications faster, without compromising on scalability, security, or clean architecture. My clients typically see 30 to 40% faster delivery compared to traditional development. Where I specialize as a MERN Stack Developer: I work on SaaS platforms, marketplaces, healthcare systems, and API-heavy applications using MongoDB, Express.js, React.js, Node.js, and Angular. As a MERN Stack Developer and MEAN Stack Developer, I’ve built everything from real-time dashboards to multi-tenant SaaS products and workflow automation systems that reduce manual work and improve efficiency. My technical core as a Full Stack Developer MERN Stack Development MongoDB · Express.js · React.js · Node.js · Next.js · REST APIs · GraphQL MEAN Stack Development MongoDB · Express.js · Angular · Node.js Backend (Node.js Developer) API-first architecture · Microservices · Authentication (JWT, OAuth) · Scalable backend systems Frontend (Next, React.js / Angular Developer) Responsive UI · Dashboard development · Performance optimization Cloud & DevOps AWS · Azure · Docker · CI/CD pipelines · Scalable deployments AI-assisted development GitHub Copilot · Cursor AI · Claude AI · OpenAI integrations for automation and intelligent features What working with a MERN Stack Developer like me looks like You’re not just hiring a MERN Stack Developer or MEAN Stack Developer, you’re working with someone who thinks in products, scalability, and long-term value. I focus on understanding your business before writing code, communicate clearly throughout the project, and deliver systems that are easy to maintain, extend, and scale. Recent work (MERN Stack & MEAN Stack Projects) Built a multi-tenant SaaS platform using MERN Stack (MongoDB, Express.js, React.js, Node.js) with role-based access, admin dashboards, and third-party integrations. Developed an AI-powered automation system using Node.js and React.js that reduced manual workflows by 40% through smart API integrations. Created a high-performance dashboard using React.js and Node.js handling thousands of concurrent users with real-time data processing. If you're looking for a MERN Stack Developer, MEAN Stack Developer, or Full Stack Developer who can build, scale, or optimize your product using MongoDB, Express.js, React.js, Node.js, or Angular, let’s connect. Send an invite and let’s build something scalable, fast, and actually worth your investment.
Supriya K. has worked .
Sourav A.
$24.99/hr
100% Job Success
$60K+ earned
Available now
Start of list.
End of list.
Most clients reach out to me after struggling with slow .NET development, messy codebases, and APIs that break under scale. That usually happens when projects are built without the right architecture from day one. If you’re looking for a .NET Developer who builds fast, scalable, and production-ready systems, while using modern AI-assisted development to move quicker without sacrificing quality, you are in the right place. With 8+ years of experience as a .NET Full-Stack Developer, I combine deep expertise in C#, .NET Core, ASP.NET Core, ASP.NET MVC, and Web API with AI tools like Cursor, Claude, and GitHub Copilot to deliver high-quality .NET solutions faster than traditional development approaches. WHAT I DO AS A .NET DEVELOPER I specialize in building complete, end-to-end .NET applications — from backend architecture to frontend delivery and cloud deployment. My work includes: • ASP.NET Core API development — REST APIs, scalable Web APIs, and modern backend systems using .NET 6 and .NET 8 • C# backend development — Clean Architecture, CQRS, Domain-Driven Design (DDD), and SOLID principles • Full-stack .NET development — ASP.NET Core backend with React.js or Angular frontend • .NET Microservices architecture — distributed systems using ASP.NET Core, Docker, Kubernetes, and Azure Service Bus • Entity Framework Core — optimized database design with SQL Server, PostgreSQL, and Azure SQL • Third-party API integrations — Stripe, PayPal, Twilio, Plaid, and external services • Background jobs & event-driven systems — queues, schedulers, and scalable processing in .NET AI-ASSISTED .NET DEVELOPMENT I use AI as a real productivity tool — not just a buzzword. With Cursor, Claude, and Copilot integrated into my workflow: • ASP.NET Core APIs are developed faster with less boilerplate • C# code quality improves through AI-assisted reviews • Debugging complex .NET applications becomes quicker and more efficient • More focus goes into architecture, scalability, and system design This means you’re not just hiring one developer — you are getting the output of an optimized, high-efficiency development process. ASP.NET CORE & API DEVELOPMENT ASP.NET Core is at the core of everything I build. Every API I develop is: • Secure — JWT authentication, OAuth2, Azure AD integration • Scalable — built for cloud environments like Azure • Clean — structured using best practices like Clean Architecture • Documented — Swagger/OpenAPI included by default • Tested — unit and integration testing with xUnit / NUnit • Maintainable — versioned and ready for long-term scaling Whether it’s a new API, scaling an existing system, or modernizing legacy .NET applications — I focus on clean, reliable delivery. FULL-STACK .NET DEVELOPMENT I build complete systems where backend and frontend work seamlessly together: • ASP.NET Core + React.js (TypeScript-based modern apps) • ASP.NET Core + Angular (enterprise-grade applications) • Real-time applications using SignalR • Full database integration with SQL Server / PostgreSQL CLOUD & MICROSERVICES (.NET + AZURE) I design and deploy scalable cloud-native applications using Microsoft Azure: • Azure App Services, Azure Functions, Azure SQL • Azure Service Bus for event-driven architecture • Microservices using ASP.NET Core and Docker • Kubernetes (AKS) for container orchestration • CI/CD pipelines using Azure DevOps MY APPROACH Every project follows a structured approach: • Understand business requirements before coding • Design scalable architecture upfront • Use AI-assisted development to speed up delivery • Write clean, testable, production-ready .NET code • Stay available for improvements, scaling, and long-term support KEY PROJECT EXPERIENCE • Built HIPAA-compliant healthcare platform using .NET Core, ASP.NET Core Web API, and React.js, improving performance and data security • Developed microservices-based systems using ASP.NET Core and Azure, improving scalability and system reliability • Integrated third-party APIs (Stripe, PayPal, Twilio, Plaid) using .NET Web API, automating workflows • Migrated legacy applications to modern .NET Core / ASP.NET Core architecture on Azure, reducing infrastructure cost • Built enterprise platforms (CRM, LMS, SaaS, POS) using C#, ASP.NET MVC, .NET Core, and Entity Framework SERVICES I OFFER • ASP.NET Core web application development • .NET Web API & backend development • C# backend system design • Azure cloud architecture & deployment • Microservices development using .NET • Full-stack development (React.js / Angular + .NET) • API integrations & third-party services
LnP Infotech Private Limited
Associated with
LnP Infotech Private Limited
$70/hr
100% Job Success
Available now
Offers consultations
Start of list.
End of list.
✔TOP RATED PLUS Full Stack Engineer ✔Upwork JavaScript Front-End Certification ✔Fluent English ✔Clear Communicator ✔6+ Years of Experience ✔.NET 8, Angular, React, MSSQL, PostgreSQL, EF Core, HTML5, CSS3, TailwindCSS, AWS, Azure I am a strong Full Stack Engineer that can get your new project off the ground. My services include Database, Backend and Frontend development, CI/CD, and deployment to AWS / Azure. Why hire me? 1. I can take your project off the ground and guide its development from concept to completion, ensuring high-quality results at every stage. 2. I communicate clearly and effectively, with fluent English skills that facilitate seamless collaboration. 3. I take ownership of my work, consistently seeking ways to improve the codebase and the overall development process. 4. I find ways to meet critical deadlines. Technologies: - .NET 8 - MSSQL - PostgreSQL - Redis - Angular - React - NextJS - JavaScript - HTML 5 - CSS 3 - TailwindCSS - TeamCity - AWS - Azure
Mesud P. has worked .
$15/hr
100% Job Success
$4K+ earned
Available now
Start of list.
End of list.
👋 Hi there! I’m a results-driven Senior Full Stack Developer with 8+ years of experience building scalable cloud-based applications, APIs, dashboards, and production-grade business systems. I help startups, growing businesses, and enterprise teams turn raw data and business ideas into reliable, scalable, and high-performance solutions. Whether you need a *data pipeline, cloud data warehouse, analytics dashboard, backend API, web application, desktop app, or full business automation system*, I can take ownership from planning to deployment. 🌟 What I Can Help You With 🔹 Cloud Data Platforms I work with modern cloud platforms including AWS, GCP, and Azure to build secure, cost-efficient, and production-ready data systems using services such as S3, Redshift, Lambda, Glue, Athena, BigQuery, Dataflow, Azure Data Factory, Synapse, and Blob Storage. 🔹 Full Stack Web & Desktop Applications I build modern, scalable applications using JavaScript, TypeScript, Angular, Node.js, NestJS, ElectronJS, .NET Core, MongoDB, PostgreSQL, and REST APIs*. From MVPs to full-scale enterprise systems, I focus on clean architecture, performance, and long-term maintainability. 🔹 Data Engineering & ETL/ELT Pipelines I design and build scalable data pipelines for ingestion, transformation, validation, and reporting using tools like Python, SQL, Apache Airflow, Spark, Kafka, dbt, Pandas, Snowflake, BigQuery, Redshift, and AWS Glue. 🔹 Dashboards, Reporting & Analytics I create business-focused dashboards and reporting systems using Power BI, Tableau, Superset, SQL, and cloud data warehouses, helping teams make faster and better decisions. 🔹 Automation & Workflow Optimization I automate manual business processes, reporting workflows, data syncs, API integrations, and backend operations to save time, reduce errors, and improve efficiency. 🔧 Tech Stack Languages: Python, SQL, JavaScript, TypeScript, Bash Frontend: Angular, HTML, CSS, responsive UI development Backend:Node.js, NestJS, .NET Core, REST APIs Desktop Apps: ElectronJS Databases: PostgreSQL, MySQL, MongoDB, SQL Server, Snowflake, BigQuery, Redshift Data Tools: Airflow, Spark, Kafka, dbt, Pandas, NumPy Cloud:AWS, GCP, Azure AWS Services: S3, Lambda, Glue, Redshift, Athena, ECS DevOps: Docker, Kubernetes, GitHub Actions, Terraform, CI/CD Visualization: Power BI, Tableau, Superset 💼 Why Work With Me? ✅ End-to-End Ownership — I can handle everything from data architecture and backend development to deployment and reporting. ✅ Production-Ready Delivery — I build clean, reliable, documented, and scalable solutions. ✅ Business-Focused Approach — I don’t just write code; I build systems that solve real business problems. ✅ Strong Communication— I keep projects clear, organized, and easy to understand. ✅ Fast & Reliable Execution — I focus on quality delivery with practical timelines and clean results. 🚀 Whether you need a data engineering solution, cloud pipeline, full stack application, business dashboard, API integration, or automation system, I’m ready to help you build it properly. 📩 Let’s connect and discuss how I can help bring your project to life.
Isfand Yar K. has worked .
Andrii K.
$47/hr
100% Job Success
$200K+ earned
Available now
Start of list.
End of list.
We build scalable, production-ready SaaS platforms and AI-powered web applications for startups and growing businesses. Our focus: architecture, performance, AI integration, and long-term scalability. Over 80+ products delivered across Healthcare, Education, Logistics, eCommerce, Marketplaces, and Enterprise systems. 💡 Core Expertise 🔹 Full-Stack Development - Node.js, NestJS - Next.js (SSR, ISR, Edge) - Ruby on Rails - React.js, Angular, Vue - React Native (hybrid mobile apps) 🔹 AI & Automation - OpenAI API (GPT-4, Assistants, Function Calling) - AI SaaS platforms - Retrieval-Augmented Generation (RAG) - AI chatbots & copilots - NLP & AI-powered personalization - AI workflow automation - AI-driven APIs 🔹 Architecture & Infrastructure - Multi-tenant SaaS - High-load backend systems - REST & GraphQL APIs - SQL / NoSQL databases - CI/CD pipelines - Performance optimization 🤖 Our Proprietary AI Platform – Bridge We built Bridge, our internal AI Agent development framework. Bridge enables: - RAG pipelines for knowledge assistants - Secure ingestion from PDFs, CRMs, APIs - AI copilots for SaaS products - Multi-channel deployment (chat, web, internal tools) - MCP server creation - Modular and scalable AI architectures This allows us to deliver AI features faster and more securely than most teams. ⚡ Our Acceleration Advantage We use our own production-proven boilerplate. BC Next.js + NestJS Boilerplate helps: - reduce development time - ensure clean architecture - speed up MVP launches - maintain scalability from day one Even other agencies use it. 🧠 How We Work Deep product discovery Architecture design & tech stack validation Sprint-based Agile development Transparent daily communication Automated testing & QA Production deployment & scaling support We think like product owners, not just developers. 🎯 Why Clients Choose Us Strong backend architecture skills Real SaaS experience (not landing pages) AI-first mindset Clean, maintainable code Excellent communication Long-term partnership approach If you're building: - AI SaaS - Marketplace - Telehealth system - ERP/CRM platform - Multi-tenant dashboard - Custom AI assistant - Scalable web app Let’s talk! We offer a free technical consultation and architecture review. Additional Expertise: HTML5, CSS3, Sass, Scss, Responsive Web Design, Cross-Browser Compatibility, Web Accessibility, SEO Optimization, Frontend Architecture, Query, Angular, Vue.js, Ember.js, Web Components, Progressive Web Apps (PWA), Single Page Applications (SPA), Server Side Rendering (SSR), Client Side Rendering (CSR), API Integration, GraphQL, RESTful APIs, Web Performance Optimization, Browser DevTools, Git, GitHub, Webpack, Gulp, npm, yarn, Visual Studio Code, Sublime Text, Atom, Responsive Images, Lazy Loading Images, Code Splitting, Error Handling, Debugging, Agile Methodologies, Scrum, Kanban, Continuous Integration and Deployment (CI/CD)
Andrii K. has worked .
Brocoders
Associated with
Brocoders
$300K+
earned
Naresh K.
$30/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
End of list.
You're building a SaaS platform or AI product. You have a developer or agency, but you're not sure the architecture will hold up at 10x scale. Or you're about to commit to a stack, and the wrong choice now will cost you six months and $100K to undo. I'm a Solution Architect for SaaS and AI startups. I design systems that work today, scale tomorrow, and don't trap you in technical debt later. ❝The best architecture is the one you don't have to rewrite. Discipline upfront saves you the rewrite later.❞ Why Founders & CTOs Hire Me I've spent 8+ years architecting and shipping production systems for SaaS platforms, marketplaces, fintech products, and AI applications. I've seen what breaks at scale and what holds. I bring that pattern recognition to your stack before the problems become expensive. I work as your architect, not your contractor. I make the decisions that matter: stack selection, data model, multi-tenancy strategy, AI integration patterns, scaling path. Then I either ship it myself or lead your team through the build. Track Record⭐ Top Rated on Upwork | 100% Job Success 🚀 8+ years shipping production systems 💯 100+ projects delivered, $100K+ earned, 8,000+ hours logged Where I Add the Most Value ✔ Pre-seed to Series A founders who need a senior technical voice before committing to a stack ✔ CTOs who need an architecture review or second opinion on a critical design decision ✔ Teams stuck on scaling problems: slow queries, broken multi-tenancy, AI cost blowouts ✔ Agencies and offshore teams that need senior architectural oversight ✔ Founders preparing for fundraising or technical due diligence Engagement Models 🔸 Architecture Design (1 to 3 weeks): I diagnose your problem, design the system, deliver documentation, and hand off to your team. 🔸 Embedded Architect (10 to 20 hrs/week): I lead architecture decisions across an active build, review code, and unblock your team. 🔸 Tech Audit & Rescue: Fixed-scope review of a stalled or broken build with a clear remediation plan. 🔸 MVP Build + Foundation (3 to 6 weeks): I architect AND ship your v1 on a stack built to scale. Core Architectural Specialties ✅ Multi-tenant SaaS architecture (data isolation, billing, scaling) ✅ AI system design (RAG pipelines, agent workflows, LLM integration patterns) ✅ Event-driven architecture and async processing ✅ API design (REST, GraphQL, webhooks, integrations) ✅ High-volume data pipelines and real-time processing ✅ Cloud architecture on AWS, GCP, Vercel ✅ Database design (PostgreSQL, MongoDB, vector stores) ✅ Microservices and modular monolith trade-offs ✅ Authentication, authorization, and tenant security ✅ CI/CD, containerization, and deployment strategy Common Pitfalls I Help You Avoid The early stage tempts overengineering. I keep your architecture aligned to your actual stage, not where you wish you were. That means: ✘ No premature microservices when a modular monolith would ship faster ✘ No exotic stacks chosen for the resume instead of the problem ✘ No 100% test coverage targets that slow down learning ✘ No AI integration patterns that burn cash without delivering value ✘ No frameworks you'll regret in 18 months when you need to hire The right architecture is the simplest one that gets you to the next milestone. Everything else is vanity. Tech Stack I Architect With Frontend: React, Next.js, TypeScript, Tailwind Backend: Node.js, NestJS, Python (FastAPI), Laravel Mobile: React Native, Expo Databases: PostgreSQL, MongoDB, Redis, Supabase, Pinecone Cloud: AWS, GCP, Vercel, Docker AI: OpenAI, Claude, LangChain, RAG, vector embeddings Integrations: Stripe, Twilio, OAuth, REST, GraphQL, webhooks I'm stack-agnostic when the problem allows it. I recommend what fits your stage and team, not what's trending on Hacker News. Industries SaaS · Fintech · Healthcare · CPG · Manufacturing · Supply Chain · Logistics · ERP/CRM · Human Capital Management · Real Estate · Banking/NBFC Specialised Use Cases ✔ Multi-tenant SaaS platforms ✔ AI Chatbot & Agent Systems (RAG, customer support, lead gen) ✔ AI Automation & Workflow Engines ✔ AI Demand Forecasting (CPG, supply chain, retail) ✔ Warehouse Management Systems (WMS, inventory, fulfilment) ✔ Cargo & Logistics Platforms ✔ Custom ERP & CRM Builds ✔ Compliance-aware Healthcare Platforms Send me your architecture question or your current system diagram. I'll give you an honest read on what's working, what's at risk, and what to do next. First 30 minutes free. Click "Invite to Job" or "Hire Now." Let's design it right.
Naresh K. has worked .
APPWRK IT Solutions LLC
Associated with
APPWRK IT Solutions LLC
$4M+
earned
$13/hr
100% Job Success
$10K+ earned
Available now
Start of list.
End of list.
Enterprise Full-Stack Architect with 10+ years of experience building scalable, high-performance web applications, SaaS platforms, and cloud-native enterprise systems. I specialize in transforming complex business requirements into robust digital solutions whether it's a payment middleware handling millions in transactions, a multi-tenant SaaS campaign engine, a high-traffic wellness platform, or a compliance-heavy tax-filing system. My MNC background ensures I deliver enterprise-grade code with a focus on performance (slashing API latency by 40%), system resilience (99.9% uptime via Blue-Green deployment on AWS/GCP), and seamless scalability (supporting 10k+ concurrent users with Redis caching and optimized DB indexing). 𝙒𝙝𝙤 𝙄 𝙃𝙚𝙡𝙥 I work with: 🔹Founders launching a new SaaS product who need a technical partner, not just a coder 🔹Growing SaaS/martech teams who need multi-tenant architecture that won't fall apart at scale 🔹Enterprises modernizing legacy systems onto modern frameworks and cloud infrastructure 🔹Agencies who need a senior full stack developer to own a project end-to-end without hand-holding 𝙒𝙝𝙮 𝘾𝙡𝙞𝙚𝙣𝙩𝙨 𝙃𝙞𝙧𝙚 𝙈𝙚 🔹I make architecture decisions, not just implement someone else's spec 🔹I've led teams and run code reviews I write code that other developers can maintain after I'm gone 🔹I communicate directly with clients and stakeholders, not through three layers of project managers 🔹I've taken systems from "legacy and fragile" to "modern and scalable" more than once I know what actually breaks in production, not just in theory 𝘾𝙤𝙧𝙚 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚: 𝙁𝙧𝙤𝙣𝙩𝙚𝙣𝙙 React.js, Angular, Next.js, TypeScript, Tailwind CSS, React Native building interfaces for web and mobile from the same underlying product logic. 𝘽𝙖𝙘𝙠𝙚𝙣𝙙 Node.js, Express.js, NestJS, GraphQL designing APIs that are built to be extended, not rebuilt every time a new feature lands. 𝘾𝙡𝙤𝙪𝙙 & 𝘿𝙚𝙥𝙡𝙤𝙮𝙢𝙚𝙣𝙩 AWS and GCP from initial infrastructure setup through ongoing deployment and performance monitoring. 𝘼𝙧𝙘𝙝𝙞𝙩𝙚𝙘𝙩𝙪𝙧𝙚 Multi-tenant SaaS design, microservice-friendly API structuring, database schema design for systems that need to scale across multiple clients or business units. 𝘼𝙋𝙄 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩 RESTful API design, third-party integrations, payment/transaction verification systems. 𝘿𝙖𝙩𝙖𝙗𝙖𝙨𝙚 MongoDB, MySQL schema design, query optimization, and data architecture for multi-tenant environments. 𝙋𝙚𝙧𝙛𝙤𝙧𝙢𝙖𝙣𝙘𝙚 Application performance tuning, production issue resolution, and optimizing systems that are already live and can't afford downtime. 𝙏𝙮𝙥𝙚𝙨 𝙤𝙛 𝙋𝙧𝙤𝙟𝙚𝙘𝙩𝙨 𝙄'𝙫𝙚 𝘿𝙚𝙡𝙞𝙫𝙚𝙧𝙚𝙙 🔹Multi-tenant campaign and loyalty platforms (voucher distribution, cashback management, dynamic microsites) 🔹Payment middleware and merchant wallet systems with commission tracking 🔹Wellness/mental health platforms with real-time mood tracking and data visualization 🔹HR/employee benefits platforms (web + React Native mobile) 🔹Legacy system migrations onto modern frameworks and cloud infrastructure 🔹Tax preparation SaaS with automated form logic and IRS-compliant data formatting 𝙄𝙣𝙙𝙪𝙨𝙩𝙧𝙞𝙚𝙨 𝙄'𝙫𝙚 𝙒𝙤𝙧𝙠𝙚𝙙 𝙄𝙣 FinTech & Payments · SaaS & Loyalty/MarTech · HR Tech · Wellness & Health Tech · Legal/Tax Software . E-commerce 𝙒𝙝𝙮 𝘾𝙡𝙞𝙚𝙣𝙩𝙨 𝘾𝙝𝙤𝙤𝙨𝙚 𝙈𝙚 ✔ 10+ years building production web applications, from startups to enterprise ✔ I own systems end-to-end architecture, backend, frontend, and deployment ✔ Direct communication you talk to the person actually writing the code ✔ Experience leading teams and mentoring developers, not just working solo ✔ Track record of stabilizing and scaling systems that were already live 𝙏𝙚𝙘𝙝 𝙎𝙩𝙖𝙘𝙠 React.js · Angular · Next.js · Node.js · Express.js · NestJS · GraphQL · JavaScript · TypeScript · MongoDB · MySQL · AWS · GCP · React Native · Tailwind CSS · RxJS/NgRx 𝙇𝙚𝙩'𝙨 𝙏𝙖𝙡𝙠 If you're building something that needs to actually hold up not just demo well send me a message with what you're working on. I'll tell you honestly whether I'm the right fit before we start, not after.
Asrar M. has worked .
Tadjeddine B.
$40/hr
100% Job Success
$40K+ earned
Start of list.
End of list.
Looking to build a modern web, desktop, or mobile application? Or planning to upgrade, scale, or modernize an existing product? I’d be happy to help you turn your idea into a reliable, high-quality solution. With over 7 years of experience delivering medium to large-scale software solutions across multiple industries—including SaaS, E-commerce, real estate, fintech, automation, and desktop applications—I specialize in building scalable, maintainable, and user-centric products that create measurable business impact. My experience spans the development of automation tools, real estate management platforms, and financial solutions, as well as QA and testing systems that support advanced workflows such as automated screenshot capture, logging, and diagnostics. I am also currently contributing to a low code tool built for public-facing applications—allowing teams to create, deploy, and scale user-ready apps. My goal is to provide the best value for your business through building high quality scalable maintainable web applications. 🏆 YOUR SATISFACTION IS MY SUCCESS 🏆 Tech Stack & Tools Frontend ⚡ HTML5, CSS3, Sass, TailwindCSS ⚡ JavaScript, TypeScript ⚡ Angular & React ⚡ RxJS (Reactive Programming) ⚡ Redux, NgRx (State Management) ⚡ Angular Material & modern UI libraries ⚡ PWA (Offline-first, mobile-like experiences) ⚡ Server-Side Rendering & Pre-Rendering Backend ⚡ NestJS ⚡ REST APIs & clean API design ⚡ Authentication & authorization ⚡ PostgreSQL (schema design, optimization) Desktop, Mobile & Extensions ⚡ Electron (cross-platform desktop apps) ⚡ Ionic + Capacitor (mobile apps) ⚡ Chrome Extensions (MV3, browser APIs) Tooling & Workflow ⚡ Git & GitHub ⚡ Agile / Scrum methodologies ⚡ Modular & monorepo architectures ⚡ Performance optimization & debugging What I Can Do for You: ✅ Prototyping and wireframing ✅ UI/UX implementation from Figma or design systems ✅ End-to-end full-stack development ✅ Web, desktop, mobile & browser extension development ✅ Designing scalable architectures and clean codebases ✅ Building responsive, adaptive, and cross-platform apps ✅ Performance, speed, and efficiency optimizations ✅ SEO best practices & accessibility improvements ✅ API design and backend integration ✅ Managing development workflows and releases ✅ Iterative development using Agile/Scrum As well as focusing on technical skills, I also do care about soft skills through: ☑️ Clear, proactive communication with clients and teams ☑️ Strong sense of ownership and responsibility ☑️ Positive, solution-oriented mindset ☑️ Always learning and staying up to date with modern tools ☑️ Open to feedback and happy to share knowledge Feel free to check out my work samples below to get a sense of the quality and care I bring to every project. Thanks for checking my profile! If you’re interested in working together, don’t hesitate to reach out — I’d love to hear about your project 🚀
Tadjeddine B. has worked .
Atanu S.
$20/hr
98% Job Success
$10M+ earned
Available now
Start of list.
End of list.
⭐️ ⭐️⭐️ National MSME Award Winner from PM Mr Narendra Modi - 2022⭐️⭐️⭐️ 🚀⭐️ Top Rated Freelancer on Upwork from ⭐️Day No 1 ⭐️🚀 ⭐️ ⭐️⭐️ Only Profile in Upwork with more than 💲10M earnings ⭐️⭐️⭐️ . 💯 4 hours of response time with 100% Client Dedication! ✅ Unlimited revision on design to ensure you get exactly what you're looking for. 💻 Ex IBM, Microsoft, Dell Coder. ⌚ Over 24000+ hours worked so far. 🚀 6000 jobs completed with + 5⭐️⭐️⭐️⭐️⭐️ Ratings In my profile, I actually have done over half-dozen comes whose valuations are over $50000 and twenty-five comes over $10000 and 100+ comes that is over $5000.I have been engaged in elance (Parent Company of Upwork ) for the last eight years thus supported many startups to grow a million greenbacks company that I'm pleased with. I'm specialized in several Website Development & Mobile Apps Development skills. Some of my expertise follows, ⭐️ Web Application Development ✅ WordPress Website Development ✅ E-Commerce website development ✅ Magento Website Development ✅ Magento Enterprise ✅ Woo Commerce Website Development ✅ Shopify Website Development ✅ Shopify Plus Development ✅ MEAN Stack Development ✅ Angular Application Development ✅ Node JS Development ✅ MERN Stack Development ✅ React JS Development ✅ Laravel Application Development ⭐️ Mobile Application Development ✅ Hybrid Application Development ✅ React Native Development ✅ Flutter ✅ Native Application Development ✅ Swift ✅ Objective C ✅ Java ✅ Kotlin
Atanu S. has worked .
Webskitters LLC - CMMI Level 3- National Award Winning Company
Associated with
Webskitters LLC - CMMI Level 3- National Award Winning Company
$7M+
earned