Hire the Best Telerik Specialists

More than 3,000 reviews on G2
Rating is 4.5 out of 5.
4.5/5
of Upwork by G2 peer reviewers
Mayurkumar B.

Surat, India

$18/hr
5.0
19 jobs

Are you looking for an experienced C#/.NET developer who can build, maintain, debug, and improve reliable business applications? With 11+ years of professional software development experience, I specialize in building and maintaining scalable web applications, REST APIs, database-driven systems, and enterprise business solutions using C#, .NET, .NET Core, SQL Server, and modern frontend technologies. I can work effectively with both new and existing codebases — from understanding requirements and implementing features to troubleshooting production issues, optimizing SQL queries, improving application performance, and refactoring legacy code. ━━━━━━━━━━━━━━━━━━━━━━ CORE .NET EXPERTISE ━━━━━━━━━━━━━━━━━━━━━━ • C# • .NET Framework • .NET Core • ASP.NET Core • ASP.NET MVC • Web API / REST APIs • Entity Framework / EF Core • LINQ • Object-Oriented Programming (OOP) • Dependency Injection • Authentication & Authorization • Microservices • Background Services • Third-Party API Integrations ━━━━━━━━━━━━━━━━━━━━━━ DATABASE & SQL ━━━━━━━━━━━━━━━━━━━━━━ • Microsoft SQL Server • Complex SQL Queries • Query Performance Optimization • Stored Procedures • Database Design • Indexing & Optimization • Entity Framework • LINQ • Data Access Layer Development • Database Troubleshooting ━━━━━━━━━━━━━━━━━━━━━━ SOFTWARE DEVELOPMENT ━━━━━━━━━━━━━━━━━━━━━━ • New Feature Development • Existing Application Maintenance • Production Bug Fixing • Debugging & Troubleshooting • Performance Optimization • Code Refactoring • API Development & Integration • Legacy Application Modernization • Clean & Maintainable Code • Technical Problem Solving ━━━━━━━━━━━━━━━━━━━━━━ FRONTEND EXPERTISE ━━━━━━━━━━━━━━━━━━━━━━ • React.js • Next.js • TypeScript • JavaScript • Redux / Redux Toolkit • REST API Integration • Responsive Web Applications ━━━━━━━━━━━━━━━━━━━━━━ TOOLS & DEVELOPMENT PRACTICES ━━━━━━━━━━━━━━━━━━━━━━ • Git / GitHub • Agile / Scrum • Code Reviews • CI/CD • Unit Testing • Production Support • Technical Documentation ━━━━━━━━━━━━━━━━━━━━━━ CLOUD & ARCHITECTURE ━━━━━━━━━━━━━━━━━━━━━━ • Microsoft Azure • AWS • Docker • CI/CD • Microservices Architecture • Cloud-Based Applications ━━━━━━━━━━━━━━━━━━━━━━ WHY CLIENTS WORK WITH ME ━━━━━━━━━━━━━━━━━━━━━━ ✔ 11+ years of professional software development experience ✔ Strong C#/.NET and SQL Server background ✔ Experienced with both new development and existing codebases ✔ Strong debugging and problem-solving skills ✔ Focus on clean, maintainable, and reliable code ✔ Comfortable working independently in remote teams ✔ Strong communication and ownership ✔ Available for long-term projects and contract-to-hire opportunities If you need a developer who can understand your existing system, solve technical problems, develop new functionality, and continuously improve application performance and reliability, I would be happy to discuss your project. Let's build and improve your application together.

  • C#
  • .NET Core
  • .NET Framework
  • ASP.NET Core
  • Microsoft SQL Server
  • SQL
  • RESTful API
  • Entity Framework
  • ASP.NET MVC
  • Git
  • Object-Oriented Programming
  • LINQ
  • Web API
  • React
  • TypeScript
  • JavaScript
  • Microsoft Azure
  • Docker
  • Microservice
  • Software Debugging
Atri B.

Kolkata, India

$25/hr
4.6
111 jobs

⭐ Top Rated Plus | $400K+ Earned | 23,000+ Hours | 100% Job Success I help businesses modernize and scale .NET applications — turning slow, hard-to-maintain legacy systems into fast, secure, scalable platforms, without a risky full rewrite. From ASP.NET Web Forms migrations to enterprise systems running 300GB+ databases, I specialize in the complex, business-critical work most developers avoid. Increasingly, clients bring me in for a second reason: they want AI capabilities — document intelligence, smart search, workflow automation — and their legacy system can't support them. I fix the foundation and build the AI on top. Over 14 years, I've delivered 89+ projects on Upwork with consistent 5-star results, including a 1,300+ hour engagement with a single client who kept coming back. What I bring to your project: 🔹 Legacy .NET Modernization — Migrating ASP.NET Web Forms & .NET Framework apps to ASP.NET Core / .NET 8, incrementally and without breaking what already works 🔹 SQL Server Performance Specialist — Complex queries, stored procedures, query optimization, and scaling databases to 300GB+ 🔹 AI Integration on Legacy Systems — Production OpenAI/LLM features: document intelligence, RAG search over your business data, OCR pipelines. Built on a modernized foundation, not bolted onto a fragile one 🔹 Full-Stack .NET Depth — ASP.NET (Web Forms, MVC, Core), C#, Web API/REST, Entity Framework, LINQ 🔹 Modern Front-End — React, Angular, Vue.js, Blazor, TypeScript, Tailwind, Bootstrap 🔹 Cloud & DevOps — Azure (primary), plus AWS & GCP experience, Azure DevOps, CI/CD pipelines, Git 🔹 Integrations — Payment systems (Stripe subscription billing for a healthcare platform), third-party APIs, MongoDB, CosmosDB Why clients rehire me: ✅ Clear, proactive communication (0–4 hour response time) ✅ Reliable availability in US time zones — I regularly work Eastern and Pacific hours ✅ Clean, maintainable, well-tested code ✅ Enterprise-standard code reviews, team leadership, and developer mentoring ✅ Solving hard problems — not just "making it work" Not sure where to start? I offer a fixed-fee, two-week Legacy Health Audit: your slowest queries analyzed, a risk map of your codebase, a phased modernization roadmap, and an AI-readiness assessment — so you know exactly what's wrong and what it will cost to fix, before you commit to anything. Whether you need a legacy system modernized, a SQL Server database that's buckling under load, AI features your current stack can't deliver, or a senior engineer to unblock your team — let's talk. Describe your application and I'll tell you specifically how I'd approach it. I'll respond within 4 hours.

  • ASP.NET Core
  • ASP.NET
  • C#
  • Microsoft SQL Server
  • Entity Framework
  • ASP.NET MVC
  • Microsoft Azure
  • REST API
  • React
  • Angular
  • Vue.js
  • Bootstrap
  • Tailwind CSS
  • TypeScript
  • JavaScript
  • AI Implementation
  • Web API
  • Web Form
  • Database Optimization
  • Stripe
EHTISHAM Z.

Newcastle upon Tyne, United Kingdom

$35/hr
4.9
84 jobs

**🚀 Elite .NET Developer | 8+ Years Building Scalable Solutions | Top-Rated with 100% Success Rate** **ASP.NET CORE | WEB API | C# | MICROSERVICES | DOCKER | BLAZOR | MAUI | SQL SERVER | AZURE | ANGULAR** Looking for someone who doesn’t just code, but thinks through problems and delivers solutions that actually work? You’ve found the right developer. 📊 Track Record That Speaks: 🏅 TOP-RATED PLUS 🏆 100% Job Success Rate ⭐ 5-Star Client Reviews 💰 $100k+ Platform Earnings 🔥 40+ Successful Projects ⚡ 4k+ Upwork Hours 🎯 Zero Failed Deliveries 🛠️ Core Tech Stack: Backend: .NET 9, ASP.NET Core 8, C#, Web API, Microservices Frontend: Blazor (Server/WASM), Angular 17, JavaScript/TypeScript, Html5, CSS3, Jquery Database: SQL Server, PostgreSQL, MongoDB, Azure Cosmos DB,Firebase Cloud: Azure, AWS, Docker, Kubernetes Payments: Stripe, PayPal, Square, Authorize.Net, Braintree APIs: REST, GraphQL, SOAP, OAuth 2.0, JWT Tools: Visual Studio 2022, Git, Azure DevOps, Jira 💡 What Sets Me Apart: I don’t just write code - I architect solutions. When you’re dealing with complex business requirements, you need someone who can translate abstract concepts into robust, scalable systems. Recent Wins: - Built secure payment processing system with Stripe (handling $50k+ monthly) - Migrated legacy .NET Framework app to .NET 8 (40% performance boost) - Integrated multi-vendor marketplace with PayPal, Stripe & bank transfers - Implemented real-time analytics dashboard with SignalR - Designed Azure-native solutions reducing infrastructure costs by 35% 🎯 Specialized In: ✅ Enterprise Web Applications ✅ Payment Gateway Integration (Stripe, PayPal, Square) ✅ Third-Party API Integration & Development ✅ REST/GraphQL API Development ✅ Cloud-Native Architecture ✅ Database Optimization & Design ✅ Legacy System Modernization ✅ Performance Tuning & Scaling 💳 Payment & Integration Expertise: -Payment Gateways:Stripe Connect, PayPal Express, Square APIs, Authorize.Net - Financial APIs: Plaid, Dwolla, banking integrations, cryptocurrency payments - Third-Party Services: Twilio, SendGrid, AWS SES, Google Maps, social logins - E-Commerce: Shopping cart integration, subscription billing, marketplace commissions - Security: PCI compliance, fraud detection, secure tokenization 🏭 Industry Experience: E-Commerce • FinTech • Healthcare • Real Estate • SaaS • Logistics • Marketplaces ⚡ My Process: 1. Deep Dive - I actually read your requirements (shocking, right?) 2. Smart Planning - Break complex problems into manageable pieces 3. Agile Delivery - Regular updates, no surprises 4. Quality Focus** - Clean code, proper testing, documentation 🌍 Availability: 📍 UTC+1 Timezone ⏰ 30-40 hrs/week 🗣️ Fluent English 📞 Flexible communication Why Choose Me? I’ve been where you are. Tight deadlines, complex requirements, budget constraints. I get it. That’s why I focus on delivering solutions that work reliably, scale properly, and don’t break the bank. Every project gets: - Detailed technical documentation - Clean, maintainable code - Comprehensive testing - Post-delivery support - NDA protection Ready to build something amazing? Let’s talk about your project. Ehtisham Zaki Senior .NET Architect & Full-Stack Developer ----- *Keywords: ASP.NET Core, C#, Blazor, Microservices, Azure, SQL Server, Web API, Angular, Docker, DevOps, Cloud Architecture, Enterprise Applications, Stripe Integration, PayPal API, Payment Processing, Third-Party APIs*

  • Azure Cosmos DB
  • MongoDB
  • Database Maintenance
  • ASP.NET Web API
  • Microsoft SQL Server Programming
  • Microsoft Azure
  • API Integration
  • jQuery
  • ASP.NET MVC
  • ASP.NET
  • Windows Forms
  • ASP.NET Core
  • Firebase Cloud Firestore
  • Stripe
  • In-App Subscription
Rocky U.

Mohali, India

$30/hr
4.6
30 jobs

𝐌𝐢𝐜𝐫𝐨𝐬𝐨𝐟𝐭 𝐒𝐭𝐚𝐜𝐤 𝐄𝐱𝐩𝐞𝐫𝐭 | 𝟐𝟎+ 𝐘𝐞𝐚𝐫𝐬 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞-𝐆𝐫𝐚𝐝𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 I help businesses design, build, and automate secure, scalable software across the entire Microsoft ecosystem from custom .NET applications and modern web platforms to Dynamics 365 CRMs, Power Platform automations, and cross-platform desktop & mobile apps. Whether you need a high-performance ASP.NET Core API, a Blazor web app, a MAUI desktop/mobile solution, or a fully integrated Dynamics 365 environment, I deliver end-to-end, from architecture to deployment. 💼 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨 𝐁𝐞𝐬𝐭: 🔹 𝐃𝐲𝐧𝐚𝐦𝐢𝐜𝐬 𝟑𝟔𝟓 & 𝐏𝐨𝐰𝐞𝐫 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 • D365 Finance & Operations (F&O) • D365 Sales, Customer Service, Field Service • Power Apps, Power Automate, Power BI • Dataverse, custom plugins, workflows 🔹 .𝐍𝐄𝐓 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • ASP.NET Core & ASP.NET MVC web applications • .NET 6 / 7 / 8 enterprise solutions • C# & VB.NET application development • Entity Framework & EF Core (Code-First, DB-First) • RESTful Web APIs & microservices • Legacy .NET Framework modernization 🔹 𝐌𝐨𝐝𝐞𝐫𝐧 𝐖𝐞𝐛 & 𝐔𝐈 • Blazor (Server & WebAssembly) • Angular (latest versions) + TypeScript • Razor Pages, MVC, Web Forms • Responsive, accessible front-ends 🔹 𝐃𝐞𝐬𝐤𝐭𝐨𝐩 & 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐀𝐩𝐩𝐬 • .NET MAUI (Windows, macOS, iOS, Android) • WPF & WinForms desktop applications • Xamarin migration to MAUI 🔹 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐂𝐥𝐨𝐮𝐝 • SQL Server, Azure SQL, T-SQL • Azure App Services, Functions, DevOps • CI/CD pipelines & automated deployments 🏆𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞: ✱ Full-stack Microsoft expertise, one developer, the entire stack ✱ 7+ years of real enterprise project delivery ✱ Clean, maintainable code, SOLID principles, unit-tested ✱ Clear communication, daily updates, no surprises ✱ Security-first mindset OWASP, secure coding standards

  • Telerik
  • Java
  • Kotlin
  • Visual Basic
  • ASP.NET
  • C#
  • Windows Presentation Foundation
  • ASP.NET MVC
  • .NET Framework
  • Node.js
  • Swift
  • iOS
  • Android
  • AngularJS
  • Microsoft Dynamics 365
  • Microsoft Dynamics CRM
  • Microsoft Dynamics ERP
Hitesh S.

Kangra, India

$17/hr
4.5
39 jobs

I'm a .NET / C# engineer with over 6 years of experience in software development. During this time I've mostly worked as a full-stack engineer Technologies I'm experienced with: .NET / C# ASP.NET ASP.NET MVC / MVC WebAPI .NET Core, .NET Core MVC / API, WPF WinForms WebAPI HTML CSS JS / Jquery Angular ( js, 2+) and other Javascript frameworks including Blazor and React I work exceptionally well with businesses in need of smart and innovative web/desktop applications. Dedicated, flexible, and always up for a challenge,. I am also expert in Azure. I have also some other skills: Project management and team lead skills. Good communication skills. Focused, Goal-oriented Blazor Expert Selenium expert for automation Testing. Expert in building Responsive Web UI, Twitter Bootstrap, Mobile, and Tablet Apps with EF 6.0 Jquery and Windows Azure. Professional in Knockout JS, Angular JS, React JS and Kendo UI.

  • .NET Core
  • .NET Framework
  • Umbraco
  • ASP.NET MVC
  • jQuery
  • HTML
  • Google Chrome Extension
  • MVC Framework
  • User Interface Design
  • SQL Programming
  • Software Testing
  • Angular 8
  • Microsoft Azure
  • Web Design
  • DNN
Dmytro S.

Nadvirna, Ukraine

$20/hr
5.0
27 jobs

😊 11+ years of commercial experience as Full Stack Developer 💻 I have a reliable team that is helping me to fill any role that is needed on a project. Any level of expertise, any budget I'm an experienced ASP.NET Developer with 11+ years of hands-on work: 6 production platforms, 120,000+ end users, 27 Upwork contracts and 5 active long-term clients (the longest for 4 years). I build and maintain web applications on ASP.NET Core, ASP.NET MVC and C# .NET: taking over existing codebases (9 so far, the oldest from 2008), fixing production issues and shipping features on time. 98% of my milestones landed on or before the agreed date, and 12 of my 13 Upwork reviews are 5 stars. As an ASP.NET Developer and Team Lead I've led teams of 5 to 13 people in business management, trading, healthcare, HR and logistics. I improved an existing ASP.NET MVC application by 30-80% (heaviest report page from 3.4s to 0.7s, API p95 from 900ms to 180ms, SQL Server CPU down 45%) through tuning, indexing and caching. I've found the root cause of 60+ production issues nobody could reproduce, 3 of them open over a year. I own architecture decisions, not just implement a spec: 3+ years of event-driven microservices on MassTransit and RabbitMQ (14 services, 1.2M+ messages a day, 99.95% uptime), 6+ years of monolithic ASP.NET Core solutions, and one enterprise system built from scratch in 12 months, on time and 8% under budget, as the lead .NET Developer of a 12-person team. I've been a backend developer on C# .NET (C sharp) 11+ years: ASP.NET Core, ASP.NET MVC, ASP.NET Web API, .NET Framework, .NET Core and Entity Framework, 250+ REST API endpoints shipped, 35+ third-party API integrations (payment, carrier, CRM), SignalR real-time features for 8,000+ concurrent users, and databases up to 600 GB and 900M rows on SQL Server, PostgreSQL, MySQL, CosmosDB, Redis and MongoDB, 1,200+ stored procedures written, 40+ slow queries brought under 1s. I've worked as an ASP.NET Web Developer on the full stack for 3+ years with Angular, React, jQuery, TypeScript, JavaScript, HTML5 and CSS: 4 SPAs delivered, 300+ UI components, Lighthouse above 90. I'm a full stack developer who owns both the C# backend and the UI. Cloud and DevOps: 3 years on Azure, plus AWS, GCP, Docker, Kubernetes and Azure DevOps CI/CD pipelines: 20+ built, 2-week releases turned into daily deploys, release time from 4 hours to 25 minutes, Azure spend cut 30% on one platform. I run ASP.NET Core workloads on Azure; for data pipelines I bring in the Azure data engineer on my team. Security and quality: OAuth 2.0, JWT, Fortify, 5 pen-test cycles, every critical finding closed within 1 sprint, load testing to 5,000 concurrent users, 80%+ unit-test coverage on my last 3 projects, DataDog monitoring with 25+ dashboards. I communicate clearly and proactively in fluent English with technical and non-technical people, overlap 6+ hours with US and EU time, and reply within 1 business hour. PROJECTS I've delivered as ASP.NET Developer 1. Business Management Platform. ASP.NET MVC and ASP.NET Core for 1,200+ businesses and franchise sites. Real-time messaging with SignalR to 8,000+ concurrent employees, 50,000+ messages a day on SQL Server, CosmosDB and Azure. 2. Commodity Trading Portal. Technical Lead on ASP.NET Core and Angular with a 9-person team for 18 months. Designed the architecture, reviewed 600+ pull requests, MassTransit across 4 databases, 0 lost transactions. 3. Healthcare Portal. Team Lead for an 11-person team. Existing app performance up 30-80%, slowest queries from 18s to under 1s, 120+ bugs closed in the first 3 months, release time from 4 hours to 25 minutes. 4. Enterprise Feedback System. .NET Core microservices built from scratch in 12 months, on time, for 25,000+ employees across 40 countries, 6 services, 2M+ feedback records. 5. Warehouse Logistics. Team Lead on ASP.NET MVC, ASP.NET Web API and React for 3 years. 3 distribution centres, 400+ trucks tracked daily, 99.9% uptime, 2 on-site visits to Canada. 6. Social Network for Car Drivers. ASP.NET MVC for 45,000+ registered drivers, 300,000+ posts and 1M+ real-time notifications a month with SignalR. ALSO EXPERIENCED AS C# Developer and C# .NET Developer on desktop and services: WPF, .NET MAUI and Blazor, 3 shipped apps; my core is ASP.NET Core on the web. I've done web developer work on PHP and Laravel integrations myself, and for anything outside my stack I bring in the right person from my team, under my supervision: a Java developer and a Python developer for shared APIs, a UI/UX designer (I build the designs pixel-accurate), a Flutter and Ionic developer for mobile apps. I take the ASP.NET Developer role myself. Certified: MCSD, Exam 486 (ASP.NET MVC), Azure Fundamentals. If you need an ASP.NET Developer who owns the whole delivery, architecture, C# .NET backend, Angular or React frontend, SQL Server and Azure, send me the scope and you'll have a plan and estimate within 24 hours

  • C#
  • .NET Framework
  • ASP.NET
  • ASP.NET MVC
  • Microsoft Azure
  • ASP.NET Core
  • .NET Core
  • Microsoft SQL Server
  • SQL
  • JavaScript
  • Angular
  • API
  • React
  • Web Application
  • ASP.NET Web API
  • Entity Framework
  • HTML5
  • jQuery
  • CSS
  • ASP

How it works

Post a job for freePost a job

Tell us what you need. Create your own job post or generate one with AI then filter talent matches.

Hire top talent fast

Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.

Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

Payment simplified

Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.

Don't just take our word for it

Telerik Freelancer Hiring FAQ

What is a Telerik freelancer?

A Telerik freelancer develops web, desktop, and/or mobile applications using the lightweight Telerik framework. Telerik is known for enabling quick development of rich user interfaces for ASP.NET MVC applications.

How do you hire a Telerik freelancer?

You can source Telerik freelance talent on Upwork by following these three steps:

  • Write a project description. You’ll want to determine your scope of work and the skills and requirements you are looking for in a Telerik freelancer.
  • Post it on Upwork. Once you’ve written a project description, post it to Upwork. Simply follow the prompts to help you input the information you collected to scope out your project.
  • Shortlist and interview Telerik freelancer. Once the proposals start coming in, create a shortlist of the professionals you want to interview. 

Of these three steps, your project description is where you will determine your scope of work and the specific type of Telerik freelancer you need to complete your project.

How much does it cost to hire a Telerik freelancer?

Rates can vary due to many factors, including expertise and experience, location, and market conditions.

  • An experienced Telerik freelancer may command higher fees but also work faster, have more-specialized areas of expertise, and deliver higher-quality work.
  • A contractor who is still in the process of building a client base may price their Telerik development services more competitively. 

Which one is right for you will depend on the specifics of your project. 

How do you write a Telerik freelancer job post?

Your job post is your chance to describe your project scope, budget, and talent needs. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project.

Job post title

Create a simple title that describes exactly what you’re looking for. The idea is to target the keywords that your ideal candidate is likely to type into a job search bar to find your project. Here are some sample Telerik freelancer job post titles:

  • Telerik developer needed to build and maintain a calendar app
  • Seeking Telerik developer for investing startup
  • Looking for an experienced Telerik developer to review mobile app code

Project description

An effective Telerik freelancer job post should include: 

  • Scope of work: From rendering UI elements to asset management, list all the deliverables you’ll need. 
  • Project length: Your job post should indicate whether this is a smaller or larger project. 
  • Background: If you prefer experience with certain industries, software, or coding languages, mention this here.
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

Telerik freelancer job responsibilities

Here are some examples of Telerik freelancer job responsibilities:

  • Convert access databases to cloud-based applications
  • Audit application code for functionality and security
  • Manage web assets with GZIP compression and resource combination to reduce number of requests made to a server
  • Deploy web assets on a content distribution network

Telerik freelancer job requirements and qualifications

Be sure to include any requirements and qualifications you’re looking for in Telerik freelancer. Here are some examples:

  • Advanced knowledge of PL/SQL, CSS, HTML, .NET, C#, MVC, and/or Web API
  • Experience migrating reports or data to Telerik, i.e. data grids or invoices
  • Background in building web applications on ASP.NET, Bootstrap, or Ajax.
  • Ability to integrate Telerik applications with SOAP and REST APIs.