.NET Core is an open-source, modern development platform from Microsoft to create enterprise-grade applications and services. It is designed to be versatile, allowing developers to work with a variety of frameworks, languages, and operating systems. It provides developers with an extensive set of libraries and tools for building web, mobile, desktop and cloud-based applications.

A .NET Core Developer can build efficient and secure applications by leveraging their continuing expertise on the latest technologies. They can create tailored web solutions with the ability to develop custom designs and layouts, debug applications and optimize codebases. As the scope and complexity of a project increases, they can provide expert input in architecture decisions while ensuring reliable scalability.

Here's some projects that our expert .NET Core Developers made real:

  • Our developers solved complex authentication needs with authorization protocols
  • We built cloud-based applications that held streamlined data with universal access
  • Our developers accomplished application configuration tasks with secure databases
  • We integrated modern user interfaces for responsive design
  • Our developers tackled intricate web dynamics for smooth performance
  • We enhanced multi-platform compatibility for interconnected networks

At Freelancer.com, we have an experienced team of .NET Core Developers capable of delivering cost effective software solutions that meet the exact requirements of projects of any size or complexity. Our experts strive to build sophisticated solutions that bring added value to every part of your business system. So why not take your idea from concept to reality? Post a project on Freelancer.com today and hire an experienced .NET Core Developer who can work remotely to develop secure, reliable software applications tailored towards your needs.

Sur 28,119 commentaires, les clients ont évalué nos .NET Core Developers 4.9 sur 5 étoiles.
Embaucher des .NET Core Developers

.NET Core is an open-source, modern development platform from Microsoft to create enterprise-grade applications and services. It is designed to be versatile, allowing developers to work with a variety of frameworks, languages, and operating systems. It provides developers with an extensive set of libraries and tools for building web, mobile, desktop and cloud-based applications.

A .NET Core Developer can build efficient and secure applications by leveraging their continuing expertise on the latest technologies. They can create tailored web solutions with the ability to develop custom designs and layouts, debug applications and optimize codebases. As the scope and complexity of a project increases, they can provide expert input in architecture decisions while ensuring reliable scalability.

Here's some projects that our expert .NET Core Developers made real:

  • Our developers solved complex authentication needs with authorization protocols
  • We built cloud-based applications that held streamlined data with universal access
  • Our developers accomplished application configuration tasks with secure databases
  • We integrated modern user interfaces for responsive design
  • Our developers tackled intricate web dynamics for smooth performance
  • We enhanced multi-platform compatibility for interconnected networks

At Freelancer.com, we have an experienced team of .NET Core Developers capable of delivering cost effective software solutions that meet the exact requirements of projects of any size or complexity. Our experts strive to build sophisticated solutions that bring added value to every part of your business system. So why not take your idea from concept to reality? Post a project on Freelancer.com today and hire an experienced .NET Core Developer who can work remotely to develop secure, reliable software applications tailored towards your needs.

Sur 28,119 commentaires, les clients ont évalué nos .NET Core Developers 4.9 sur 5 étoiles.
Embaucher des .NET Core Developers

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    21 missions trouvées

    Responsive Web application + Mobile App Technology: .NET core, SQL, Angular Feature 1. Vehicle Master Management Add and manage vehicle details including registration, insurance, permits, fitness, PUC, and ownership information. 2. Driver Management Maintain driver profiles, license details, expiry tracking, and vehicle assignment. 3. Trip Tracking Log trip start and end with odometer capture and maintain route/date-wise trip history. 4. Fuel Management Record fuel entries with bill upload, auto-calculate mileage, and monitor fuel efficiency. 5. Maintenance Management Schedule preventive maintenance, record service history, and track maintenance costs. 6. Compliance & Expiry Alerts Automated alerts for insurance, permit, PUC, fitness, and license expiry. 7. Gate Entry &...

    €1199 Average bid
    €1199 Offre moyenne
    67 offres

    This project centres on replacing a monolithic, legacy insurance platform with a clean, high-performance .NET Core API designed around Domain-Driven Design. The first bounded contexts to rebuild are User Authentication & Authorization and Policy Management; Claims Processing may follow once the new foundation proves stable. The current system struggles with sluggish response times, can’t scale when new brokers come aboard, and is painful to extend or refactor. I therefore need an API layer that is fast, horizontally scalable and, above all, maintainable. No usable documentation exists, so part of the assignment is to reverse-engineer the relevant business rules directly from the running application and stakeholder interviews. You will model the core insurance domain into aggreg...

    €15 / hr Average bid
    €15 / hr Offre moyenne
    25 offres

    I need a small, secure website built on .NET where registered users can log in, choose from a set of predefined templates, and instantly generate a finished PDF. The workflow is straightforward: • Users authenticate through a standard login screen (ASP.NET Identity is fine). • After login they see a dashboard listing the available templates. Payment Gateway required. • When a template is selected, questionairre is uploaded, the user completes the questionaire, the system pulls the relevant data automatically— from a SQL-based data source and from a simple form the user completes—and merges it into the template. • The completed document is rendered as a PDF, reviewed to the admin team, once approved, then offered for download and optionally emailed to t...

    €2337 Average bid
    €2337 Offre moyenne
    172 offres

    I need an experienced .NET full-stack developer to move several in-house web projects forward. Most of the work circles around ASP.NET Core (MVC and Web API) backed by SQL Server, with the user interface rendered in Bootstrap. Scope of work • Build new modules and, where necessary, refactor legacy .NET code into a clean, layered architecture. • Design and optimise SQL Server tables, views, stored procedures and indexes to keep the app fast under load. • Implement an admin area focused on Analytics graphs; charting libraries that work smoothly inside Bootstrap are welcome. • Secure the application with claims- and cookie-based authentication, plus role-based authorisation throughout. • Integrate third-party REST APIs, handle error cases gracefully, and ...

    €8 / hr Average bid
    €8 / hr Offre moyenne
    49 offres

    I maintain a live Angular + Dotnet Core application and need someone who can sit with me in Bangalore—preferably on-site, at least for the first few sessions—to quickly enhance the backend. The core goal is to improve an existing system, not start from scratch. Right now the Dotnet Core layer is showing its cracks: data isn’t syncing cleanly between services and several API calls are failing on production, causing intermittent errors in the Angular front-end. I’d like you to dive straight into the repository, isolate the synchronization logic, patch the API communication issues, and leave the codebase cleaner and easier to extend. Key deliverables • Stable, fully functioning Dotnet Core backend with no data synchronization lapses • API endpoints retu...

    €9 / hr Average bid
    €9 / hr Offre moyenne
    10 offres

    Technology: .NET Core | MySQL | Angular 1. Web Application: HRMS Features • Employee onboarding & exit management • Attendance tracking (GPS-based / Branch-based) • Payroll processing • Expense management • Leave management • Manpower movement tracking • Chatbot assistance • Mobile application access • Reports & dashboards REPORTS & DASHBOARDS User / Operational Dashboards • Attendance summary (daily / monthly, GPS vs branch-wise) • Personal leave balance & leave history • Payroll slip & salary breakup • Expense submission & approval status • Manpower movement logs • Pending approvals (leave, expense) • Chatbot usage & query resolution Senior Management Dashboards • Headcount &a...

    €1395 Average bid
    €1395 Offre moyenne
    71 offres

    Two to three seasoned full-stack engineers are needed to push a complex, production-grade banking platform forward. The application’s backbone is .NET Core, the UI is written in Angular, and critical jobs run as Azure Functions, all talking to a SQL Server datastore. Your day-to-day work will revolve around: • Designing and coding new features end-to-end in .NET Core and Angular • Writing and refactoring serverless logic inside Azure Functions • Optimising queries and data models in SQL Server • Raising pull requests, performing code reviews, and managing branches in GitHub • Updating stories and tasks in Jira while collaborating in two-week sprints The environment is fast-moving and highly regulated, so I value developers who already have 6-8 year...

    €13 / hr Average bid
    €13 / hr Offre moyenne
    37 offres

    I need hands-on assistance, at my Bengaluru office, to keep a live .NET 6 back end and Angular 12 front end running smoothly. The immediate focus is two-fold: • Systematic bug fixing—tracing issues in the Web API, Angular components, and integration layers, then committing clean, tested patches. • Regular code reviews—walking through pull requests with me, flagging design or performance concerns, and suggesting improvements that align with current best practices. Expect to work directly on the existing Git branch structure (Visual Studio / VS Code, Git, and typical dev-ops tools are already in place). Face-to-face collaboration during standard weekday hours is essential; remote work is not an option for this engagement. Deliverables will be accepted once each id...

    €8 / hr Average bid
    €8 / hr Offre moyenne
    27 offres

    The core of my project is an API service already running on .NET 5 and paired with an Angular front-end. I need hands-on, task-based support to keep new features moving quickly while maintaining clean, testable code. Here’s the current stack and workflow so you know what you’ll be jumping into: • Backend: ASP.NET Core 5, Entity Framework Core, RESTful endpoints. • Front-end: Angular (latest stable), RxJS, Material. • DevOps: Git, pull-request reviews, CI builds on GitHub Actions. Typical tasks you could pick up include: • Expanding endpoints and DTOs. • Wiring new Angular components to the fresh endpoints. • Adding unit / integration tests where coverage is thin. • Fine-tuning performance or refactoring when technical debt appe...

    €10 / hr Average bid
    €10 / hr Offre moyenne
    46 offres

    I'm looking for an experienced .NET Core developer to assist in feature development for my backend, specifically focusing on creating RESTful API endpoints. Key Requirements: - Develop and implement RESTful API endpoints - Ensure scalability and security of the APIs - Collaborate with the frontend team for seamless integration - Write unit tests for the developed features Ideal Skills and Experience: - Proficiency in .NET Core and RESTful API development - Strong understanding of database integration - Experience with authentication and authorization mechanisms - Familiarity with unit testing and CI/CD pipelines Looking forward to your expertise!

    €8 / hr Average bid
    €8 / hr Offre moyenne
    46 offres

    I have an existing backend written in .NET Core that exposes a RESTful API. I now need a hand with two things: expanding the API with a few new endpoints and squashing some stubborn bugs that are affecting current routes. The codebase sits in a private Git repository and builds cleanly with the dotnet CLI. You’ll get a detailed list of the endpoints to add or refactor, the steps that reproduce each bug, and a Postman collection for quick regression checks. Once we agree on the work, simply branch, code, test, and open a pull request. Deliverables I expect: • Updated or brand-new C# controllers, services, and any supporting classes that compile against .NET Core. • Targeted bug fixes with unit tests that prove the issue is resolved. • A brief changelog so I can re...

    €8 / hr Average bid
    €8 / hr Offre moyenne
    42 offres
    .NET Blazor Engineer Needed
    4 jours left
    Vérifié

    I’m building a green-field SaaS platform using C# and Blazor and need an experienced full-stack .NET engineer to own both front-end and back-end development from day one. This is a hands-on role on a multi-platform solution (web + mobile + hybrid) that runs across AWS and Azure, orchestrated with Kubernetes and backed by SQL Server. What you’ll work on • Blazor applications (must have) using MudBlazor • .NET MAUI clients consuming the same backend APIs • Clean, testable C# domain logic • REST APIs with strong test coverage (TDD expected) • SQL Server schema design, queries, and performance tuning • Containerised services (Docker) • CI/CD pipelines (Azure DevOps) • Deployments to AWS (EKS, Lambda) and Azure (AKS, Functions) Must-...

    €11 / hr Average bid
    €11 / hr Offre moyenne
    52 offres

    My ASP .NET website loads fine until the moment a user logs in—right after pressing the Login button an error message pops up and the page stops there. I can capture and share a screenshot of the exact message, but I don’t have the text copied out. Nothing else needs to be clicked for the issue to appear; it happens instantly after authentication. I’m looking for someone willing to troubleshoot this one-off problem pro bono. You’ll have temporary access to the project files or a zipped copy (C#, .NET Framework, SQL Server back-end) so you can replicate and patch the fault. Once you identify the cause and supply the fix—whether it’s a tweak, an authentication middleware adjustment, or a code-behind patch—I’ll implement it on the live serve...

    €17 Average bid
    €17 Offre moyenne
    42 offres

    I'm looking to develop a web application on the .NET platform. Ideal skills and experience: - Proficiency in .NET technologies. - Experience in web application development. - Strong understanding of database management. - Familiarity with front-end technologies (HTML, CSS, JavaScript). - Problem-solving skills and attention to detail. Please provide your portfolio and relevant work experience.

    €218 Average bid
    €218 Offre moyenne
    56 offres

    Hello , We are seeking an experienced .NET Trainer / Senior Developer to conduct an intensive classroom-based training program for final-year engineering students. Location Gudivada, Andhra Pradesh (Onsite) Batch Size 30–40 students Duration 15–16 days Daily Schedule 9:00 AM – 1:00 PM 1:30 PM – 4:30 PM Responsibilities Deliver hands-on training covering: C# fundamentals ASP.NET Core Web API Entity Framework Core SQL Server Authentication and Authorization Industry-standard architecture and best practices Guide students through a real-world industry project Share professional development and interview preparation insights Assign daily exercises and conduct code reviews Requirements Minimum 5 years of experience with .NET / ASP.NET Core Prior corporate training...

    €5859 Average bid
    €5859 Offre moyenne
    10 offres
    .NET MAUI App
    1 jour left
    Vérifié

    I need a lightweight .NET MAUI mobile application that targets Android and contains only three screens: • Login – users choose Face ID/biometrics, an NFC badge tap, or a numeric PIN to sign in. • WebView – after authentication the app simply embeds a URL that I will provide at build time. • Admin – a management screen (hidden behind its own sign-in) where I can add or edit users, assign permissions, and tweak basic app settings. All data, including user credentials, roles and configuration, must live in a MySQL database accessed through a secure REST API that you will craft and integrate. Please separate API, data-access and front-end layers cleanly and keep the code in MVVM pattern. C#, .NET 8, Entity Framework (or Dapper), Visual Studio and standard...

    €67 Average bid
    €67 Offre moyenne
    59 offres

    I already have a web-based EHR written in .NET that stalled before launch. The core workflows are in place, yet three areas still block us from going live: • Bug fixing (top priority): the current build shows several UI/UX inconsistencies, a handful of security gaps around authentication/authorization, and broken FHIR calls that return empty payloads or 500 errors. • FHIR integration: the R4 endpoints exist but half of the resources are unmapped and the conformance statement fails validation. . I need someone who has shipped an EHR or similar health-tech product, is comfortable working in C#, ASP.NET Core, Entity Framework, and knows the HL7 FHIR spec inside out. Familiarity with ONC certification criteria—USCDI data classes, SMART on FHIR launch, etc.—will make...

    €28 / hr Average bid
    €28 / hr Offre moyenne
    104 offres

    I am building a fully-featured social networking platform from the ground up and need a developer who can own both the server-side and front-end work. The stack is set: C# ASP.NET (Core preferred) powered by an MS-SQL database. Scope of work You’ll start by architecting the database, spinning up the ASP.NET project, and exposing a clean, well-documented REST (or GraphQL, if you prefer) API. Identity-based authentication, role management, and token-based security need to be wired in from day one. Key features I must see at launch: • Messaging system (asynchronous and real-time) • News feed with post, comment, like, and share capabilities • Private chat using SignalR or an equivalent WebSocket solution • Meeting scheduling module that lets users create, ...

    €714 Average bid
    €714 Offre moyenne
    111 offres
    Full-Month .NET React Maintenance
    11 heures left
    Vérifié

    I need an experienced .NET and React developer who can give my product a full-time focus—eight hours a day for the next month—while working side-by-side with my lead engineer during Indian Standard Time. The codebase is already in production; our goal over the coming weeks is to tidy up rough edges, harden performance, and keep new issues from sneaking in as we roll out incremental updates. Tech stack you’ll touch daily: ASP.NET Core APIs, a React front end that leans on hooks and functional components, JSON-heavy data exchange, and Azure resources provisioned with Bicep. You’ll be handling pull requests, writing clean commits, and jumping on quick Teams or Slack calls whenever a change needs clarification. Expect a straightforward workflow—branch, code, PR, ...

    €612 Average bid
    €612 Offre moyenne
    107 offres

    I’m building a Windows desktop application and need someone who already feels at home in the full .NET ecosystem—C#, WinForms or WPF, Entity Framework, and modern async patterns. The work covers the entire cycle: architecture decisions, coding, UI polish, thorough testing, and packaging for deployment on current Windows versions. I’ll share the functional outline and existing mock-ups as soon as we connect; clean, well-commented code and brief setup notes will serve as the final deliverables, alongside the signed installer. If you’ve shipped at least one production-grade desktop app in .NET and can point me to it, we can get started right away.

    €502 Average bid
    €502 Offre moyenne
    37 offres

    I want a Blazor WebAssembly application that my team can run entirely in the browser while still taking advantage of .NET on the back end. The project’s focus is an internal business app, so security, speed, and a clean code-base are more important to me than public-facing design polish. Core features I need working from day one: • User authentication – sign-in, sign-out, role-based access, and token refresh handled with ASP.NET Core Identity or another proven library. • Data visualization – interactive charts and tables (think , Plotly, or the built-in Telerik/Syncfusion components if you prefer) driven by live data pulled from our existing APIs. • File uploads – drag-and-drop or standard picker that writes to a secure storage endpoint, then d...

    €247 Average bid
    €247 Offre moyenne
    28 offres

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