✔ 13+ Years of hands on experience in Software testing (Manual, Automation, API & Mobile app) ✔ Worked as a full time employee for around 10 years and since then 100% into freelancing. ✔ Expertise in all types of testing - Smoke, Sanity, Functional, Integration, Regression, System, Compatibility (OS/Browser), Internationalisation, User acceptance Testing (UAT), Load & Performance Testing. ✔ Around 05 years of Wordpress Website Testing experience. ✔ Vast experience in creation of Test Plan, Test Strategy, Test Bed Setups, Test Cases Designing , Test Execution, Test Result Reports, Root Cause Analysis reports and Matrices ✔ Good experience in Test case execution across all the environments -QA/STAGE/PROD ✔ Reporting Defects , Root Cause Analysis(RCA) of the defects found, Planning Bug Triage Meetings and assisting developers in defect analysis/reproducing. ✔ Test Environment creation - Creating test data for both Manual and Automation test script across QA/STAGE or PROD environments. ✔ People/Team management - Help team in Task Review, Task Allocation, Estimations, Tracking QA deliverables & Collaboration with both Development & Product Owners. ✔ Client Communication - Weekly/Daily/Monthly Status Reports, Planning Team/Sprint Planning Meetings ✔ Expert with Agile/Scrum Process - Certified Scrum Master (CSM), Good experience working in Scrum Teams, User Stories, Story Points, Acceptance Criteria's, Daily Standup/Sprint Planning/ Demo/Retrospective Meetings. Tools (Defect Tracking, Test Case Management & Others) --------------------------------------------------------------------- ✔ JIRA, Trello,JIRA -Zephyr, HP-ALM,Pivotal Tracker, Redmine, HipTest,Mantis & Bugzilla ✔ Bitbucket, GitHub, GIT, Jenkins, Cygwin ✔ BrowserStack, Firebug, PageSpeed Database ----------- ✔ PostgreSQL, MySQL, MS-SQL ✔ Good experience with SQL and DB testing API Testing -------------- ✔ Good experience in testing API's using tools like Postman,Swagger. ✔ API Automation using REST Assured, Postman, Karate, Jmeter & SoapUI Web & Mobile Automation -------------------------------- ✔ 6+ Years of experience in Web Automation using Selenium Web-drivers ( Java & C #) along with TestNG framework & Serenity with Cucumber (BDD). ✔ 2+ Years of experience in Mobile automation using Appium ( Java) ✔ Expert in analysing and setting up automation frameworks( Keyword & Data driven) Load & Performance Testing ---------------------------------- ✔ Load & Performance Testing using tools like Jmeter, BlazeMeter. Mobile(Native app) Testing --------------------------------- ✔ Native Apps testing on Android and iOS platforms Domain Experience ------------------------ ✔ Healthcare, E-Commerce, Social networking, Online Survey's , Lifestyle, SAAS, Travel websites, ERP & Cloud Applications. Online and Classroom Trainings --------------------------------------- ✔ Agile - Scrum Trainer (Online and Classroom training) ✔ HP-ALM - Online and Classroom Training ✔ JIRA-Agile - Online and Classroom Training ✔ Manual Software Testing - Online and Classroom Training ✔ Selenium with Web drivers - Online and Classroom Training Additional Achievements ------------------------------- ✔ Certified Scrum Master - Scrum coach ✔ JIRA Administration Experience - Can help in Setting up JIRA from scratch to configuring complex Workflows & Schemas. ✔ 3 Years of Project Management experience ✔ Ability to work under pressure, prioritise and multi-task efficiently in a team or independently. ✔ Available 40 hrs/week or more if required.

🎮 Unity Game Developer | Casual, Puzzle, Simulation & Multiplayer Games | AI-Assisted Development 🚀 I help startups, game studios, and entrepreneurs transform ideas into successful games for Android, iOS, WebGL, and PC using Unity. 🏆 With 40+ completed projects and multiple ongoing productions, I have developed a wide range of games including Casual Games, Puzzle Games, Simulation Games, Hyper-Casual Games, Arcade Games, Typing Games, Business Simulations, Multiplayer Experiences, and Interactive 3D Applications. ⚡ By leveraging AI-assisted development workflows, proven production pipelines, and reusable systems, I help clients reduce development time while maintaining quality, scalability, and performance. 💡 My Services: 🎯 Unity 2D & 3D Game Development 📱 Android & iOS Game Development 🌐 WebGL Game Development ⚡ Rapid Prototyping & MVP Development 🧩 Casual, Puzzle & Hyper-Casual Games 🏗️ Simulation & Business Simulation Games 👥 Multiplayer & Networking Solutions 🎰 Real Money Games & Casino Mechanics 💳 Payment Gateway Integration (Stripe & Custom APIs) 🔥 Firebase Integration 📈 AdMob, In-App Purchases & Subscriptions 🎨 Gameplay Systems & Game Mechanics 🏞️ HDRP / URP Environment Development 🖥️ Backend Integration & API Connectivity 🚀 Google Play Store & Apple App Store Publishing 🐞 Game Optimization, Bug Fixing & Performance Tuning 🎭 Character Animation & Interactive Experiences ✅ Why Clients Hire Me: ⭐ 40+ Successfully Delivered Projects ⭐ Full-Cycle Game Development ⭐ Fast Communication & Reliable Delivery ⭐ AI-Assisted Rapid Development Process ⭐ Production-Ready & Scalable Solutions ⭐ Long-Term Collaboration Mindset Whether you're building an MVP, launching a mobile game, creating a multiplayer experience, integrating monetization, publishing to stores, or scaling an existing project, I can help bring your vision to life efficiently and professionally. 📩 Let's discuss your project and build something players will love.

I help startups, brands, and businesses build immersive, interactive digital experiences using Unity. If you're looking to create more than just an app — if you need engagement, interactivity, gamification, or simulation — I can help turn your concept into a scalable, production-ready product. 🚀 What I Build ✔ AR applications (AR Foundation – marker & markerless) ✔ VR experiences (Meta Quest, immersive simulations) ✔ Gamified mobile apps (education, fitness, training, kids learning) ✔ Interactive simulations & training tools ✔ Product configurators & visualizers ✔ 2D & 3D Unity applications ✔ MVP development for startups ✔ Android, iOS & WebGL deployment 🎯 Who I Work With • Startups building interactive MVPs • Businesses creating training simulations • Brands developing AR product demos • Agencies needing reliable Unity expertise • Founders looking to gamify their app idea 💡 Why Clients Work With Me - Strong Unity architecture & clean code structure - Focus on core engagement loop - Clear milestone planning & communication - Stable builds optimized for performance - Long-term collaboration mindset I don’t just develop features — I help shape ideas into products users actually enjoy using. 🌐 Multi-Engine Experience In addition to Unity, I’ve also developed projects using: • Roblox (multiplayer & UGC-style experiences) • Cocos Creator (2D mobile games) • Matter.js (browser-based physics games & simulations) This allows me to recommend the right technology based on your goals — not just push one engine. 🛠 Tech Stack Unity (2D/3D) AR Foundation Meta Quest VR C# Firebase REST APIs Multiplayer basics Animation systems Ads & In-App Purchases integration 📦 My Process - Understand your product goal - Define the interactive core loop - Build a stable MVP - Iterate based on feedback - Prepare for scale & launch If you're planning to build: • An AR product visualizer • A VR training experience • A gamified learning app • An interactive simulation • Or a scalable Unity-based MVP Let’s discuss your idea.

I build multiplayer and realtime Unity games and integrate the backend systems that power them. Over 10+ years I've shipped 40+ titles across mobile, PC, and web, reaching 15M+ players on Google Play. Most game developers stop at the client side. My edge is the full stack: I connect your game to real backend infrastructure , APIs, realtime servers, databases, analytics, and economy systems → so your game scales smoothly and actually retains players. 🚀 HIRE ME IF YOU WANT: ✅ 🕹️ Realtime multiplayer & .io games → WebSocket-based netcode, up to 64 concurrent players, FPS/TPS, cloud save, friendship & matchmaking systems ✅ 🌐 Game ↔ backend integration → APIs, data pipelines, analytics, server architecture, SQL/NoSQL databases ✅ 📱 Cross-platform Unity 3D → mobile, PC, VR, and WebGL/browser (Three.js, Phaser, HTML5 Canvas) ✅ ✈️ Advanced gameplay systems → physics, vehicle controllers (car/motorcycle/aircraft), ragdoll/humanoids, procedural generation, economy & market systems ✅ ⚙️ Backend development → Node.js & TypeScript, REST & WebSocket services, web dashboards ✅ Workflow: Git, GitFlow, CI/CD ✅ Multiplayer & backend: Mirror Network, Photon Quantum, Photon Fusion, PlayFab, Azure Functions, AWS, Firebase, LiveOps I work with clean-code standards and test-driven development, and I deliver on time. Why clients pick me: 40+ games shipped · 15M+ players reached · Top Rated Plus · 100% Job Success. 🤝 HOW WE WORK - You own everything: all source, all assets, all repository. Always. - No black box: clean, best practices applied, documented code your team can pick up. - No lock-in: standard Unity and C#, so you're never dependent on me. - Plain language: not technical? No problem. I work with founders and designers daily, jargon-free. If you need a game built right and a backend that won't break when players show up → let's talk. Unity Developer, Game Developer, Senior Unity Developer, Unreal Engine 5 Expert, Multiplayer Game Engineer, WebGL Optimization, AI Game Integration, Playable Ads Developer, Expert Unity Developer, Game Developer, Senior Game Developer, Web Games, PC Games

I help startups and growing businesses turn ideas into production-ready SaaS platforms using ASP.NET Core, Angular, Blazor, and Microsoft Azure. With 𝟴+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 in full-stack development, I’ve built secure 𝗔𝗣𝗜𝘀, 𝗺𝘂𝗹𝘁𝗶-𝘁𝗲𝗻𝗮𝗻𝘁 𝘀𝘆𝘀𝘁𝗲𝗺𝘀, 𝘀𝘂𝗯𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻-𝗯𝗮𝘀𝗲𝗱 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀, 𝗿𝗲𝗮𝗹-𝘁𝗶𝗺𝗲 𝗱𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀, 𝗮𝗻𝗱 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲-𝗴𝗿𝗮𝗱𝗲 𝘄𝗲𝗯 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀. I understand how to move fast without sacrificing scalability, security, or long-term maintainability. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: - ASP.NET Core (.NET 6/7/8, 9, 10), C#, Web API - Angular, TypeScript, RxJS - Blazor (Server & WebAssembly) - RESTful API development & microservices architecture - Entity Framework Core, SQL Server, PostgreSQL - Azure (App Services, Functions, Blob Storage, Key Vault, Application Insights) - Authentication & Authorization (JWT, OAuth2, Azure AD) - CI/CD with Azure DevOps & GitHub Actions - Docker & containerized deployments - Clean Architecture, SOLID principles 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘄𝗶𝘁𝗵: - End-to-end SaaS application development (MVP to production) - Backend API design and performance optimization - Modern Angular frontends with scalable architecture - Blazor dashboards and admin portals - Cloud deployment and DevOps automation - Legacy .NET modernization and migration to .NET Core 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜’𝘃𝗲 𝘄𝗼𝗿𝗸𝗲𝗱 𝘄𝗶𝘁𝗵: - SaaS & B2B platforms - HR & Workforce Management systems - FinTech & payment integrations - Healthcare portals & internal systems - Analytics & reporting dashboards - Enterprise admin tools 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗵𝗶𝗿𝗲 𝗺𝗲: - I focus on business outcomes, not just features. - I write clean, structured, and maintainable code. - I take ownership from planning through deployment. - I communicate clearly and deliver in defined milestones. - I build systems that are secure, scalable, and production-ready. If you’re looking for a senior .NET and Angular developer who can architect, build, and deploy reliable cloud-based applications on Azure, I’d be happy to discuss your project and share a clear plan forward.

Upwork Expert-Vetted Talent (Top 1%) Microsoft Certified AI Engineer (Certification number: DEB32A-P5EE8C) Fullstack Developer | Software Engineer | Solutions Architect | AI Engineer | UI/UX Designer Tech Stacks Languages & Frameworks: C / C++ / C# / .NET / Unity / Java / JavaScript / TypeScript / Python / Rust / PHP / VB Razor Pages / CSS3 / Maven / Spring / Angular 2+ / React.js / Redux / jQuery / HTML5 / JSX / XAML / XML/XSLT / ASP.NET MVC / ASP.NET Core / .NET Framework / DevExpress UI / Spring Framework / Spring Boot / Spring Cloud / JavaFX / QT / QML Databases: MySQL / PostgreSQL / MSSQL / NoSQL / MongoDB / Azure Cosmos DB / Redis / Firebase Realtime Database DevOps & Containerization: Docker / Kubernetes / Azure DevOps AI & Machine Learning: Machine Learning / Deep Learning / TensorFlow / PyTorch / MATLAB / Azure Cognitive Services / Azure OpenAI Services / Azure AI Video Indexer / Azure AI Prompt Flow / Google Assistant SDK Blockchain Development: Ethereum / Binance Smart Chain / Solana / Stellar / Smart Contract Development / IoT Blockchain Technologies Additional Tools & Platforms: QuickBooks Online (Intuit) App Development / Shopify App Development Full Stack Development Services App Development: Mobile, Web, and Desktop Applications, Macros & Scripts Blockchain Development: Smart Contract Development and Blockchain Integration for Ethereum, Binance Smart Chain, Solana, and Stellar Algorithmic Trading: Algo Trading Platforms for Stocks and Cryptocurrency Dashboards & Analytics: Custom Dashboards, Metrics, and Business Intelligence Solutions Custom CRM & ERP Systems: Design, Development, and Integration of Customized CRM and ERP Solutions Database Management: Database Design, Optimization, Maintenance, and Integration for MySQL, PostgreSQL, MSSQL, NoSQL, MongoDB, and other leading database systems Software Integrations: Third-Party Software Integration and IT Security Implementations AI & Cognitive Services: Development of Machine Learning, Deep Learning, and Cognitive AI Solutions using Azure AI Stacks (Cognitive Services, OpenAI, Prompt Flow, Video Indexer) and Google AI SDK

𝐖𝐞𝐥𝐜𝐨𝐦𝐞 𝐭𝐨 𝐦𝐲 𝐩𝐫𝐨𝐟𝐢𝐥𝐞 7+ Years of Software Development Experience Expert in Building Scalable Web Applications, APIs, and SaaS Platforms Delivered CRM Systems, Enterprise Applications & Cloud-Based Solutions I help startups, founders, and enterprises turn their ideas into reliable and scalable digital products. From building applications from scratch to improving existing platforms, I focus on delivering secure, high-quality, and maintainable solutions. If you are looking for an experienced developer who can understand your business needs and build efficient software solutions, you are in the right place. 𝐖𝐇𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄 • 7+ years of experience • Strong knowledge of web application development • Experience with SaaS and enterprise solutions • API development and integrations • Clean and maintainable code 🚀 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥𝐬 Backend • .NET, C#, ASP.NET, .NET Core • Node.js • REST & SOAP APIs • Microservices • JWT, OAuth Frontend • React.js • JavaScript, TypeScript • HTML, CSS ☁️ 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 • Docker • CI/CD • Cloud deployment 🗄 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 • PostgreSQL, MSSQL, MySQL • MongoDB, Redis, Firebase 𝐎𝐭𝐡𝐞𝐫 𝐒𝐤𝐢𝐥𝐥𝐬 • Agile / Scrum • System design • Debugging & optimization • Git, Jira, Trello 𝐂𝐋𝐈𝐄𝐍𝐓 𝐅𝐄𝐄𝐃𝐁𝐀𝐂𝐊 "Thank you for helping build our application based on the requirements. We look forward to working together again." "Great communication and high-quality work delivered on time." "Excellent code quality and professionalism. Highly recommended." 𝐋𝐞𝐭’𝐬 𝐖𝐨𝐫𝐤 𝐓𝐨𝐠𝐞𝐭𝐡𝐞𝐫 Thanks & Regards Sumit

I help startups, SMEs, and enterprise clients design, build, and scale complex business platforms — from fintech and payments to inventory, invoicing, memberships, and AI-powered automation. With 18+ years of experience in mission-critical systems (Payments, Fintech, POS, remittance, IoT, AI), I lead agile teams to deliver robust, scalable, and secure solutions across cloud and on-premise environments. Core Solutions I Deliver: Payments & Remittance Systems End-to-end payment gateways (APIs, processors, PCI-DSS infra) Mobile-first remittance apps (KYC/AML, Pay-in / Payout / FX, Admin, Compliance) White-labeled payment gateway platforms for ISOs, fintechs, and merchants Inventory Management Platforms Multi-channel inventory sync (web, mobile, POS) Distributor ↔ Retailer integrations Predictive reordering, shelf optimization, low-stock alerts Invoicing & Billing Systems Recurring billing, membership management, revenue recognition Integration with QuickBooks, Sage, and ERPs Payment, refund, chargeback workflows AI-Powered Automation Generative AI platforms (content generation, document automation) Workflow automation to cut costs and increase speed-to-market IoT Cloud Solutions Remote firmware update platforms (OTA, rollback strategies) Device management, campaign control, analytics dashboards Membership & Subscription Platforms Subscription billing, renewals, discount engines, dashboards Secure payment flows, reporting, analytics How I Work: End-to-End Delivery (Architecture, Development, QA, DevOps) Scalable, Compliant, Secure Systems Collaborative & Transparent Project Management Recent Success Stories: RetailTech SaaS: Scaled live inventory platform integrated with POS & predictive AI Remittance App: Full ecosystem from KYC to payouts, FX, and compliance AI SaaS: Automated publication platform for medical/scientific professionals White-Labeled Payment Gateway: Delivered PCI-DSS-compliant multi-tenant platform for global merchants If you’re looking for a partner to help you deliver robust business platforms faster and with confidence — let’s connect.

I’m a Senior Unity Developer with 8+ years of experience in Unity Game Development, building 2D/3D games, multiplayer systems, AR/VR applications, and AI-powered interactive experiences for mobile, PC, and WebGL platforms. I help startups, studios, and businesses turn ideas into scalable, high-performance Unity products using clean C# architecture, optimized gameplay systems, and reliable development pipelines. My focus is delivering production-ready solutions with strong performance and maintainable code. Core Expertise 🎮 Unity 2D/3D Game Development (Mobile, PC, WebGL) 🕹 Multiplayer Systems – Photon, Mirror, Netcode 🥽 AR/VR Development – Oculus, Vuforia, XR Toolkit 💻 Advanced C# Programming & System Architecture ⚡ Unity Performance Optimization (Mobile & Desktop) 🔗 Backend Integration – PlayFab, Firebase, REST APIs 🤖 AI Integration & Automation Workflows Why Clients Choose Me ✔ Top Rated Developer with 100% Job Success ✔ 8+ years of professional Unity development experience ✔ Expert in multiplayer, XR, and scalable game systems ✔ Clean, optimized, and production-ready code If you're looking for a reliable Unity Developer for games, multiplayer systems, or XR applications, let’s discuss how I can help bring your project to life.

I represent a development team focused on DevOps, cloud infrastructure, backend deployment, and production reliability. We help companies deploy, stabilize, and scale production systems: SaaS platforms, fintech backends, healthcare systems, data pipelines, API-heavy products, and applications that have already outgrown simple deployment setups. Our work usually involves Docker-based deployments, AWS/GCP infrastructure, CI/CD pipelines, staging and production environments, monitoring, logging, database reliability, background jobs, queue-based processing, and production troubleshooting. Typical situations we help with include: – moving from manual deployment to predictable CI/CD – stabilizing production systems with recurring failures – setting up Dockerized backend environments – improving monitoring, logs, alerts, and production visibility – supporting high-load backends and background processing – deploying APIs, SaaS platforms, and data processing services – helping teams understand why systems fail under real usage We are not just focused on “making it deploy”. The goal is to make the system easier to operate, monitor, and scale after launch. Tech stack: Cloud & infrastructure: AWS, GCP, Cloud Run, EC2, S3, RDS, Vercel, Linux, Nginx Containers & orchestration: Docker, Docker Compose, Kubernetes CI/CD: GitHub Actions, GitLab CI/CD, Jenkins, AWS CodePipeline Monitoring & observability: Prometheus, Grafana, Sentry, Datadog, structured logging, alerts Databases: PostgreSQL, MySQL, MongoDB, Redis, ClickHouse Queues & background jobs: Kafka, NATS, Redis queues, scheduled jobs, cron workflows Backend stack: Node.js, Python, Go, Java, REST APIs, WebSockets Security & access: environment management, secrets, role-based access, Keycloak, deployment hardening