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4.7/5
Based on 2,626 client reviews
Hemant V.

Bengaluru, India

$20/hr
5.0
4 jobs

Available to start immediately. I build and fix real .NET & C# software. Click on Invite button to start conversation I’m a .NET Developer and C# Developer with 13+ years of experience working on production systems built in C#/.NET. Most of my work is focused on helping teams make their existing software more stable, scalable, and easier to evolve without risky rewrites. I’ve worked in long-term roles as a C#/.NET developer, often joining projects where the codebase already exists and needs structure, performance improvements, or careful modernization. 🧠 How clients usually come to me Very often, teams reach out to me as a .NET developer when they already have a product written in C#/.NET, but something isn’t working as it should. Changes are slow, bugs appear in unexpected places, or the architecture feels fragile. In those cases, I step in as a C# .NET Developer who understands how real systems grow over time and how to improve them without breaking production. Depending on the scope, I work either as a backend developer focused on logic and performance, or as a .NET Full Stack Developer when both backend and UI decisions need to be handled together. ⚙️ What I do in real projects Day to day, my work as a .NET Developer is very practical. I write and refactor C#/.NET, clean up .NET architecture, improve async flows, and make sure the application behaves predictably in production. In many projects, this naturally turns into .NET full stack work handling backend services, APIs, and UI integration where I step in as a .NET Full Stack Developer. When teams want a modern .NET Full Stack direction without splitting the codebase, I build new features or full applications using .NET MAUI/WPF/WinForms. I’ve worked with .NET apps both for new products and for migrations from older stacks like, where stability matters more than speed. 🧩 Types of systems I’ve worked on Over the years, I’ve worked as a .NET Developer, across different environments: 💻 Desktop software written in C#/.NET 🌐 Web platforms where I worked as a full stack developer on .NET backends 📱 Cross-platform apps built with .NET MAUI (Windows & Android only) 🧱 Larger products that required a true full stack developer approach 🔗 Mixed systems where .NET AI integration was part of the stack 🎮 Internal tools and simulators developed with C# 🤖 Careful use of .NET AI where it actually added value In several projects, I worked in React .NET setups, connecting React frontends to .NET backends while keeping responsibilities clean and clear. 🛠️ How I work with teams and data I’m comfortable joining existing teams and reading unfamiliar C#/.NET codebases. I focus first on understanding why decisions were made, then improving things step by step. I regularly work with SQL server, collaborate with Azure Data Engineer roles, and support data-heavy systems where performance & reliability are critical. This mix of responsibilities often places me in a .NET Full Stack Developer role even when the original task starts as pure backend work. 🛠️ Tech Stack .NET Framework, .NET 6 / 8 / 9 / 10 App Development - WPF, WinForms, WinUI, Blazor, .NET MAUI, MVVM Concurrency & Performance - Multithreading, async/await, Task Parallel Library Hardware & Protocols - Serial, Bluetooth LE, TCP/IP, UDP, RS232, RS422 Architecture & Quality - Clean Architecture, OOP, refactoring, performance tuning Security & Testing - Unit testing, Polaris, Coverity, SAST, DAST, threat modeling Data & Cloud - SQL Server, Azure Tooling - Visual Studio, VS Code, GitHub, GitHub Actions, Docker ✅ Why clients choose to work with me ✨ I think like a long-term .NET Developer, not a short-term task runner ✨ I write C# code that other C# developers can actually maintain ✨ I’m comfortable owning systems as a .NET Full Stack Developer ✨ I communicate clearly and avoid surprises ✨ I leave .NET full stack codebases cleaner and more stable than I found them 📌 Availability ✅ Available now 🌍 Remote-only ⏱️ Open to long-term collaboration If you’re looking for a .NET Developer, who can step into an existing system and improve it safely let’s chat. 👉 Send a message and we’ll review your setup together.

  • Desktop Application
  • Windows Presentation Foundation
  • .NET Framework
  • Universal Windows Platform
  • Windows Forms
  • Standalone Application
  • Application Improvement
  • C#
  • Python
  • Microsoft Visual C++
  • Docker
  • Ubuntu
  • GitHub
  • Android App Development
  • Bash Programming
  • Microsoft Windows PowerShell
  • Prototyping
  • Microsoft Azure
  • PostgreSQL
  • Angular
Christine T.

Los Angeles, California

$68/hr
4.8
134 jobs

📣 FREE technical consultation (details below) 🐻 Proud UC Berkeley graduate (Applied Mathematics & Economics) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below). 💪💪💪 With experience as: • Full-Stack Team Lead at Camping World, a publicly traded company • Lead Technical Teaching Assistant at Hack Reactor, a leading software engineering bootcamp • Founder of Atini Studio, a high-performance software development agency With years of experience working with clients and leading engineering teams, I prioritize accountability, clear communication, and efficient execution. 🌈🌈🌈 I’m the founder of Atini Studio, a vibrant software development agency and a team I like to call software doctors: highly skilled engineers and creative UI/UX designers who diagnose, fix, and elevate digital products. ⌨️⌨️⌨️ What I help clients with: 📌 MVP development for startups 📌 Full-stack web applications 📌 Cross-platform mobile apps 📌 AI-powered features & integrations 📌 Clean implementation from Figma to production 📌 API integrations (Stripe, OpenAI, Google, Zoom, etc.) 📌 Performance optimization 📌 Technical architecture planning 📌 Product roadmap & scaling strategy We also leverage AI internally to accelerate development workflows and improve efficiency, so you get faster delivery without sacrificing quality. 🧩 Complimentary Technical Consultation Not sure how to move forward with your product? I can help you clarify: • The right tech stack • MVP scope • Timeline and budget expectations • System architecture decisions • Whether your current product is built correctly I offer a complimentary strategy session to help you create a clear and practical execution plan. 💻 Tech Stack: • Front End JavaScript | TypeScript | React | Next.js | React-Native | Angular | Vue.js | Tailwind CSS • Back End Node.js | NestJS | Python | Django | PostgreSQL | MongoDB | MySQL | ORM | GraphQL • API Integrations ChatGPT / OpenAI | Stripe | Google | Zoom | and more... • DevOps Amazon Web Services (AWS) | Firebase/GCP(Google Cloud Platform) | Azure | Docker • Testing Jest | Mocha | TDD • Developer Tools Git | npm | Webpack | Babel | Agile Methodology | Nginx • Design Adobe XD | Figma

  • Node.js
  • React
  • AWS Amplify
  • CSS 3
  • RESTful API
  • React Native
  • Firebase
  • Angular
  • Amazon EC2
  • JavaScript
  • Database
  • WordPress
  • ChatGPT
  • AI Development
  • AWS Development
Rohit K.

Noida, India

$10/hr
4.9
134 jobs

I help businesses automate operations, reduce costs, and accelerate growth by building AI agents, workflow automations, and AI-powered web & mobile applications. From idea to production, I design and deploy scalable AI solutions that integrate seamlessly into your business and deliver measurable results. 🚀 What I Do I design and build production-ready AI solutions—from AI agents and workflow automation to AI-powered web & mobile applications. Whether you're launching an AI startup or integrating AI into your existing business, I deliver scalable end-to-end solutions. 🤖 AI Agents & Automation ✅ AI Sales, Customer Support & Research Agents ✅ Multi-Agent Systems (LangGraph, LangChain, CrewAI, AutoGen) ✅ AI Assistants & Human-in-the-Loop Workflows 🎙 Voice AI ✅ AI Receptionists & Call Agents ✅ Inbound & Outbound Voice Automation ✅ CRM Integration, Transcription & Analytics Platforms: Vapi, Retell AI, ElevenLabs, Deepgram, Twilio 🔥 MCP, RAG & LLM Solutions ✅ Custom MCP Servers ✅ OpenAI, Claude & Gemini Integrations ✅ RAG Applications & Vector Databases ✅ Tool Calling & Enterprise AI Solutions 🔄 Workflow Automation ✅ n8n, Make, Zapier & Power Automate ✅ API Integrations & ETL Pipelines ✅ CRM, ERP & Business Process Automation 🔗 CRM & ERP Integration ✅ Salesforce, HubSpot, GoHighLevel, Zoho, Monday ✅ NetSuite, SAP, QuickBooks, Stripe & Custom APIs 💻 Full-Stack Development ✅ AI-Powered Web Applications (React, Next.js, Python, Node.js) ✅ Mobile Apps (React Native, Flutter) ✅ FastAPI, Django, PostgreSQL, MongoDB & Redis 🛠 Core Technologies AI: OpenAI, Claude, Gemini, Llama, Mistral Frameworks: LangChain, LangGraph, CrewAI, LlamaIndex Cloud: AWS, Azure, GCP, Docker, Kubernetes 💡 Why Work With Me ✔ Expert-Vetted (Top 1%) AI Engineer ✔ $100K+ Earned • 100% Job Success ✔ End-to-End AI, Web & Mobile Development ✔ Production-Ready, Scalable Solutions ✔ Clear Communication & Reliable Delivery Let's build something amazing together.

  • Vue.js
  • Agent GPT
  • LangChain
  • Generative Model
  • ChatGPT API
  • n8n
  • Hugging Face
  • LLM Prompt
  • LLM Prompt Engineering
  • AI Chatbot
  • OpenAI API
  • AI Agent Development
  • Python
  • Midjourney AI
  • Generative AI Prompt Engineering
  • Automated Workflow
  • AI Implementation
  • Large Language Model
  • AI Model Development
  • Node.js
Klein B.

São Leopoldo, Brazil

$30/hr
5.0
142 jobs

I’m a Unity Game Developer with 100+ Unity-based games, mobile games, video games, AR/VR applications, and interactive experiences built from scratch for startups, small businesses, and enterprise clients. As a Unity developer, I’ve worked on Game Development, Mobile Game Development, Video Game Software, AR & VR Development, Augmented Reality, Virtual Reality, Photon Unity Networking, and cross-platform projects for iOS, Android, PC, Windows, Steam, and VR devices. 𝙃𝙤𝙬 𝙄 𝘾𝙖𝙣 𝙃𝙚𝙡𝙥 𝙔𝙤𝙪: 1️⃣ Unity Game Development: I build complete Unity games and mobile games with smooth gameplay mechanics, clean scenes, engaging UI, strong performance, and scalable project structure. 2️⃣ Mobile Game Development: I develop mobile games and interactive apps for iOS and Android using Unity and C#, making sure the game runs smoothly across smartphones, tablets, and mobile platforms. 3️⃣ AR/VR Development: I create AR applications, Augmented Reality experiences, Virtual Reality projects, and AR & VR interactive solutions for training, education, entertainment, simulation, and business use. 4️⃣ Online Multiplayer & Photon Unity Networking: I can integrate multiplayer features, real-time gameplay, user systems, matchmaking, and online game functionality using Photon Unity Networking and Unity multiplayer tools. 5️⃣ Bug Fixing, Optimization & Game Improvement: I fix bugs, clean up Unity projects, improve performance, reduce load times, optimize gameplay, and make existing games feel smoother, faster, and more polished. 6️⃣ Game Prototypes & Full Builds: I help turn ideas into playable game prototypes, MVPs, demos, and complete video games ready for testing, pitching, or launch. 𝙆𝙚𝙮 𝘼𝙘𝙝𝙞𝙚𝙫𝙚𝙢𝙚𝙣𝙩𝙨: 🔹 Built 100+ Unity games, mobile games, AR/VR apps, and interactive applications. 🔹 Delivered a Unity mobile game with 50,000+ downloads. 🔹 Improved Unity game performance by up to 40% through debugging and optimization. 🔹 Integrated AR/VR features and Photon Unity Networking multiplayer systems in 20+ projects. 🔹 Built game prototypes that helped startups present their ideas, test gameplay, and attract investor interest. 🔹 Worked with designers, developers, and business teams to deliver polished, scalable Unity projects on time. 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚: 🔹 Game Engines: Unity, Unity3D, Game Engine, Video Game Software 🔹 Game Development: Game Development, Mobile Game Development, Video Game, Game, Mobile Game 🔹 AR/VR: AR & VR, AR/VR Development, Augmented Reality, Virtual Reality, AR Applications, AR/VR Devices & Platforms 🔹 Multiplayer: Photon Unity Networking, online multiplayer, real-time gameplay systems 🔹 Platforms: iOS, Android, PC, Microsoft Windows, Steam, VR devices, smartphones, tablets 🔹 Tools & Languages: C#, Unity Editor, Visual Studio, Git, debugging tools, asset management 🔹 Services: Bug fixing, performance optimization, game prototypes, gameplay systems, UI, animations, project cleanup, and full Unity development The best way to start is with a free call and a quick review of your Unity game, mobile game, or AR/VR project needs. Send me a message, and I’ll help you figure out the best next step.

  • Unity
  • Mobile Game Development
  • AR & VR
  • Mobile Game
  • Game Development
  • Game Testing
  • PC Game
  • Game
  • Game Prototype
  • Game Controller
  • Video Game
  • Game Mechanics
  • Game Customization
  • AR & VR Applications
  • AR & VR Development
  • Game Engine
  • Photon Unity Networking
  • Augmented Reality
  • AR Application
  • Virtual Reality
Hamza A.

Oshawa, Canada

$30/hr
5.0
33 jobs

AI-powered software, automation systems, and applications built to streamline real business operations Many companies grow faster than their internal systems. Processes that once worked manually start becoming inefficient. Teams spend time entering data, responding to repetitive inquiries, or switching between disconnected tools. I help businesses solve that problem by building AI-powered software, automation systems, and custom applications that connect workflows, automate tasks, and make operations more efficient. My focus is on AI Voice Agents, AI chatbots, AI software, and AI automation systems that integrate with existing platforms such as CRMs, messaging tools, databases, and internal business systems. AI Voice Agents & AI Chatbots I build AI voice agents and conversational AI systems that automate communication with customers, leads, and internal teams. Services include: • AI Voice Agents for inbound and outbound calls • Conversational AI Chatbots for websites, WhatsApp, and messaging platforms • Lead qualification and automated customer support systems • Voice AI integrations using tools like VAPI and Retell AI • AI agents that integrate with CRMs and internal databases These systems allow businesses to respond instantly to customers while reducing manual workload. AI Automation & Workflow Systems I design and implement AI automation systems that connect tools and automate repetitive tasks. • Workflow automation using n8n and Make • Intelligent AI Agents that analyze data and trigger actions • CRM automation and marketing workflow automation • AI-driven reporting and operational insights • End-to-end AI Automations that streamline internal processes Custom AI Software & Platforms Beyond automation, I build custom AI-powered software systems tailored to business operations. • AI Software Development using Node.js and Python • Custom AI Agentic Solutions for operational workflows • Integration of OpenAI and Claude LLM models into software platforms • Backend systems and API integrations • AI Custom Solutions designed around real business use cases These platforms help companies centralize their operations and eliminate fragmented systems. Mobile Application Development I also build mobile applications that integrate with backend systems and AI-powered services. • Mobile Application Development for operational tools • iOS application development and cross-platform solutions • Field service apps for managing teams, jobs, and workflows • Apps integrated with automation systems and databases Real Systems Built for Real Businesses I have built AI-powered platforms and automation systems for multiple companies including: • So Special Mobile Mechanic – AI-infused mobile application and operational platform • Al Arabi Company – dispatch system for operations and maintenance management • Mystical Agency and Intero Digital – AI automation and proposal generation systems • AI chatbot and WhatsApp automation systems for clinics and service businesses These systems typically include AI agents, automation pipelines, mobile apps, dashboards, and backend integrations that help businesses manage operations more efficiently. Technology & Tools My systems are typically built using: • Node.js and Python for backend development • OpenAI and Claude for LLM-based AI systems • n8n and Make for workflow automation • VAPI and Retell AI for voice agents • API integrations with CRMs, marketing tools, and databases Ideal Clients I work best with businesses that need to: ✔ Automate manual processes ✔ Build AI-powered applications or platforms ✔ Integrate systems across multiple tools ✔ Develop custom software or mobile applications ✔ Introduce AI into operations to improve efficiency Most of my clients are companies whose operations have grown faster than their internal systems — and they need technology that can automate workflows, connect tools, and scale with their business. If you're looking to build AI-powered software, automate workflows, deploy AI voice agents, or develop custom applications, feel free to message me and let's discuss your project.

  • Artificial Intelligence
  • Mobile App
  • Product Development
  • Web Application
  • Web Development
  • AI Agent Development
  • AI Development
  • AI App Development
  • AI Bot
  • AI Consulting
  • ChatGPT
Arbaz K.

Bahawalpur, Pakistan

$5/hr
4.8
73 jobs

I have been working as a reverse recruiter for more than 5 years, successfully placing many candidates. I specialize in tailoring resumes to ensure they are ATS-friendly for specific job applications. Additionally, I can target specific jobs through Boolean searches. I have good connections with US recruiters and HR managers on my LinkedIn profile. Many clients have been satisfied and many projects have been successfully done. Most of my clients gave my list/work a rate of 98% - 100% validity. My Expertise in Lead Generation Are: ✔ Resume Tailoring ✔ Finding Jobs ✔ Admin Work ✔Job Search Strategy ✔Job Search Assistance ✔ Web Research ✔Job Application Submission ✔Job search sites; Indeed, Ladders, Glassdoor, Dice Simple Hired, Monster, Linkedin, Hiring Cafe, Carrier Builder, USA Jobs, Zip Recruiter, Built-In, Zip Recruiter, TheJobNetwork, Adzuna, Job Serve, Snagajob, Lensa, Ladders, The Muse, FlexJobs, NeXxt, CareerBliss ✔ Web Research / Internet Research Feel free to schedule a call and I'll walk you through my current and past projects & solve your specific problem. Thank You for visiting my profile

  • Data Entry
  • Lead Generation
  • Social Media Lead Generation
  • Microsoft Office
  • List Building
  • Online Research
  • LinkedIn Sales Navigator
  • Contact List
  • LinkedIn Recruiting
  • Sales Lead Lists
  • Prospect List
  • Data Collection
  • Data Mining
  • Data Scraping
  • Google Sheets

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