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AgileTech Studio

5.0

328

10.0

98%

Lahore, Pakistan

$40 USD per hour

We are team of skilled, motivated & experienced Software developers and designers. We believe in delivering AI Apps , Custom SaaS , Web Apps , Mobile App , Desktop and Dashboard Designs services and Project Management with high quality, affordable budget, high speed , secure and 100% satisfaction. We have expertise in following technologies and offering services in: Microsoft Based Technologies: ASP.net Core , ASP.net MVC, Blazor, SignalR, Xamarin, .Net MAUI ,SQL SERVER all Additions, DevExpress Third Party Controls, WPF/WCF, Web Apis and All type of Api's Integrations. Artificial Intelligence : Generative AI, Agentic AI, Natural Language Processing (NLP), Machine Learning (ML) Cloud Services: Azure , AWS , Google Cloud , Cloud Security Google Based Technologies: Android Development, Google Maps Apple Based Technologies: IOS Development, Swift Development Clover Payment Integration Open source Technologies: Meteo.JS, Electron.JS, React JS, Next.js , Node.js Backbone JS, Angular JS, Cordova, Ajax, Django Frontend and Design Technologies: HTML5, tailwind CSS , Bootstrap, CSS, JQuery, Logo Design, Google Material Design, Figma , Adobe Photoshop, Adobe Illustrator, Adobe InDesign, Adobe Premier CMS: WordPress, Joomla, Drupal , Magento , Shopify Programming Languages: C#, VB, Flutter , Node , Java, JavaScript ES6/ES5, PHP, Python, C++, ROR Databases: MSSQL , MySQL , Mongo Db , MongoDB , PostgreSQL, SQLite, MariaDB

LINQ PHP ASP C Programming Java

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Malik Farhan A.

4.9

155

7.7

92%

Lahore, Pakistan

$15 USD per hour

⭐ In top freelancers at freelancer.com ⭐ Experienced and results-driven Full Stack Developer having more than 9 years of professional experience with a passion for tackling challenging projects in a dynamic environment. My strong motivation and dedication have driven me to constantly expand my skillset and stay current with the latest tech stacks. I am now looking to bring my expertise to a reputable company. Key Skills: - ASP.NET (MVC, Core, .NET 5, 6, 7, 8, 9 10) - C# Programming - Web API (REST, SOAP, JSON) - PowerApps, Power Platforms, Power Automate - Microservices - RabbitMQ, Redis - Payment Service Provider (PSP) Integrations - Windows Services and Schedulers - SQL Database, Oracle DB, MySQL, PostgreSQL, MongoDB - LINQ, Entity Framework and Dapper ORM - SQL Queries, Stored procedures, Functions - Third-party API Integrations (Payment, SMS, ERP, any type of) - KendoUI, AngularJS - HTML, Bootstrap, JavaScript, JQuery - Material Design - Object-Oriented Programming (OOP) - Object-Oriented Design (OOD) - Building Robust Web Solutions Best Practices and Strengths: - Writing clean, optimized, and high-performance code - Extensive experience in server API integration - Creating Efficient and Scalable Web Solutions - Crafting Innovative Web Solutions for Success - Proficiency in different design patterns - Expertise in system design, scalability, and interoperability of enterprise systems - Collaborative problem-solving and Agile development experience - Strong mentoring skills, including code reviews for junior developers - Project management using Jira and Trello - Effective communication and self-starter attitude Tools: - Visual Studio 2022, VS Code - SSMS for Database Management, Workbench, Oracle. - Version control with GitHub, GitLab, BitBucket, and TFS - Agile methodologies, including experience with Agile tools like Jira - Effective internal communication with MS Teams, Slack or any professional communication channel I'm excited to contribute my skills and experience to a forward-thinking company that values innovation and teamwork. Let's connect and explore opportunities together. WORKING STYLE ● Agile based project management. ● Full-time developers (40+ hours per week) ● I will accompanies you at each development step and keeps you informed about every segment. Once completed, following up is certainly much crucial step to collect feedback and to ensure if anything needs fixing, it is done right there. COME AND VISIT ME ● Feel free to contact me to get the best custom web & software development to remove roadblocks in your way to business efficiency. 💬 Let’s turn your idea into a powerful, high-performing product. 🔑 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 that can be used to find me: #.NetDeveloper, #FullStackDeveloper #DotNetDeveloper #CSharpDeveloper #ASPNetDeveloper #NetCore #WebDeveloper #FrontendDeveloper #HTMLCSS #JavaScriptDeveloper #TypeScript #ReactJS #Angular #Blazor #BackendDeveloper #RESTAPI #Microservices #EntityFramework #WebAPI #SQL

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Colan Infotech Pvt Ltd

4.8

9.0

94%

PERNAMBUT, India

$18 USD per hour

Colan Infotech is an early adopter of the developing Artificial Intelligence, Machine Learning, Data Science, Data Enginnering,Java,.Net.PHP,Testing,Mobility etc. We do Software Development, Website Designing, and Smart-phone apps development. We offer services to large enterprises, Small and Medium-size companies, and software product companies. We have a well-experienced team with strong technical background and dedicated team of professionals equipped with all required offshore project development, infrastructure and also we have associated with reputed partners in software products and technology.

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Rifki L.

4.8

5.9

93%

Pandeglang, Indonesia

$25 USD per hour

As a research assistant, I offer my expertise in business and academic research to undergraduate, graduate, and Ph.D. level students. I specialize in marketing, education, and psychology (psychometric), both qualitative and quantitative. I am experienced in using statistical techniques such as PCA, EFA, CFA, and CB-SEM using SPSS AMOS, PLS-SEM using SmartPLS, SAS, Stata, and R. Additionally, I am proficient in using qualitative analysis software such as NVivo and MAXQDA. In programming, I have expertise in dBase III, Clipper 5, SQL, Visual Basic, C#, Python and R. I have developed a full-blown software application, the NATO Codification System (NCS) for Parts Codification. As a native Indonesian speaker, I offer translation services for English-Indonesian and vice versa. To ensure the timely delivery of high-quality work, I require clear and concise instructions in written English and always create milestones that are released upon delivery of the final product. Please note that my prices reflect the value of my expertise and experience, and I believe that paying for quality work is essential. If you're looking for a dedicated and skilled research assistant or programmer, I'd be happy to discuss your project with you in detail.

LINQ Python Visual Basic Windows Desktop Data Processing

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Muhammad S.

5.0

7.0

94%

Lahore, Pakistan

$25 USD per hour

I’m Muhammad Shoaib, a Senior Software Engineer with 7+ years of experience building fast, scalable, and high-quality applications using C#, ASP.NET, Blazor, WinForms, WebForms, .NET Core, Azure, and SQL Server. I help companies modernize legacy systems, improve performance, and build stable applications that support real business growth. I’ve successfully delivered 250+ projects, including: 🔹 Fintech Application Migration — rebuilt a legacy .NET system using .NET Core, Angular, SQL, and AWS, improving speed and scalability. 🔹 Global Enterprise Platform — developed a white-label solution for a major U.S. railway serving 80,000+ users, handling backend, frontend, Azure SQL, CI/CD, and monitoring. ⏱️ I’m available full-time in EST with a dedicated workspace and reliable high-speed internet. I take full ownership of every task and provide daily progress updates to keep your project on track. 📞 If you want a .NET expert who builds clean, reliable, and efficient systems—let’s schedule a quick call and discuss your requirements. 🛠️ Tech Stack & Tools Languages & Frameworks: C#, VB.NET, ASP.NET Core, .NET 6/8, Web API, WinForms, WebForms, Blazor Frontend: Blazor, Angular (7–18), JavaScript Database: SQL Server, Azure SQL Cloud & DevOps: Azure Functions, App Services, Cosmos DB, Redis, CI/CD, Monitoring AWS EC2, SES Version Control: GitHub, Azure DevOps, Bitbucket, TFS, TortoiseSVN

LINQ ASP JavaScript .NET Website Design

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Patrik F.

4.9

7.6

97%

Visnjan, Croatia

$35 USD per hour

We specialize in delivering professional software solutions based on client requirements. In the last seven years, we have been working on many different projects and we have always been transforming ideas into reality, providing the best quality and service to our customers. No project is too small nor too large for us. We can always dedicate at least one engineer to your project. Choose our team because we are working for your satisfaction. We specialize in the following: Desktop and Embedded applications, Algorithm implementation and optimization, Research & Development Embedded Operating Systems Development: Windows XP Embedded, Win CE, C/C++, C#, .NET, WPF, Silverlight, WCF, MVC, Delphi, Java, PHP, JavaScript, jQuery, WIA 2.0, TWAIN Data Processing: Pattern Recognition, Artificial Intelligence systems, Image Processing Databases: MSSQL, Firebird, MySQL Electronics: Embedded Electronic Design, Prototyping, Microcontrollers, Microchip, Communication Protocols: RS232, Ethernet, USB, Interprocess communication Automation: Building Automation, KNX, DALI, DMX (Lighting systems) User Experience & UI: Visualization, UI Development Web: Web applications, Web services, Security, Cryptography, RSA, 3DES, SHA, MD5 and many more

LINQ C Programming Java JavaScript XML

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Muhammad Zahid M.

5.0

5.4

95%

Dubai, United Arab Emirates

$20 USD per hour

About Me With over 13 years of proven expertise in software development, I specialize in building robust, scalable, and high-performing applications across web, mobile, and desktop platforms. My technical foundation is built on Object-Oriented Analysis & Design (OOAD) and Database Design & Implementation, leveraging industry best practices and Agile methodologies to deliver solutions that exceed expectations. I’m passionate about adopting modern technologies, clean architecture, and continuous improvement. Whether you need full-stack development, system design, or API integration, I bring precision, performance, and professionalism to every project. My Motto: Deliver ON TIME — with QUALITY. Services I Offer: ✅ Custom Web, Mobile & Desktop Application Development ✅ Full-Stack Development with ASP.NET, .NET Core, MVC, Web Forms ✅ Front-End Expertise: JavaScript, jQuery, Bootstrap, Kendo UI, Telerik, DevExpress ✅ Database Development: MS SQL Server, MySQL, NoSQL, EF Core, Dapper, ADO.NET ✅ API Development & Integration: RESTful APIs, Web APIs, Third-party Services Why Work With Me? ✔️ Competitive & Transparent Pricing ✔️ On-Time Delivery, Every Time ✔️ High-Quality, Maintainable Code ✔️ 100% Client Satisfaction Guarantee Let’s collaborate and turn your vision into a high-impact digital solution. Ready when you are!

LINQ ASP JavaScript XML .NET

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Anandan K.

5.0

91%

Erode, India

$5 USD per hour

I am a highly skilled Full Stack Developer with strong experience in building scalable, secure, and high-performance web applications using .NET, Java, and PHP technologies. With over 8+ years of experience, I specialize in both frontend and backend development, delivering end-to-end solutions that meet business needs efficiently. I have worked on a wide range of projects including: Business web applications REST API development Automation tools CRM / ERP systems E-commerce platforms I focus on writing clean, maintainable code and ensuring performance, security, and user-friendly design. Technical Skills ✅ Backend Technologies .NET Core / ASP.NET MVC / Web API Java (Spring Boot, Hibernate) PHP (Laravel, CodeIgniter) ✅ Frontend Technologies HTML5, CSS3, JavaScript Bootstrap, jQuery Angular / React (if applicable) ✅ Database SQL Server MySQL PostgreSQL ✅ Tools & Others Git / GitHub / Bitbucket RESTful APIs & Microservices Docker (optional) Azure / AWS (optional) Services I Offer ✔ Full Stack Web Development ✔ Custom Software Development ✔ API Development & Integration ✔ Bug Fixing & Performance Optimization ✔ Database Design & Optimization ✔ Third-party API Integration ✔ Automation Scripts & Tools

LINQ ASP JavaScript .NET Windows Desktop

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Josue Enmanuel M.

4.8

6.2

91%

Campeche, Mexico

$25 USD per hour

LINQ PHP C Programming Java JSP

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Clients rate our LINQ Developers

4.9 out of 5

from 1,557 reviews

How to hire a great freelance LINQ Developer

A LINQ developer is a .NET programmer who uses Language Integrated Query to write expressive, type-safe queries against collections, databases, XML, and JSON inside C# or VB.NET applications. LINQ developers translate business logic into efficient queries that filter, transform, group, and aggregate data directly within application code, replacing verbose loops and inline SQL with concise, maintainable syntax.

What a LINQ developer delivers

Hiring a LINQ developer means bringing on a specialist who knows how to bridge object-oriented code and data sources cleanly. The right developer writes queries that are both readable and performant, knowing when to use deferred execution, when to materialize results, and how to avoid common pitfalls like N+1 queries or in-memory evaluation of operations meant for the database.

Typical deliverables include LINQ to Entities queries against Entity Framework Core or Entity Framework 6, LINQ to SQL data layers, LINQ to Objects logic for in-memory transformations, LINQ to XML for document parsing, and LINQ to JSON via libraries such as Newtonsoft.Json or System.Text.Json. Many engagements also involve refactoring legacy ADO.NET or stored procedure code into modern LINQ-based repositories.

Core services and tasks

Writing query syntax and method syntax LINQ expressions for data access layers

Building Entity Framework Core DbContext classes, migrations, and LINQ-based repository patterns

Optimizing slow queries by inspecting generated SQL with profilers, MiniProfiler, or EF Core logging

Implementing complex joins, group-by aggregations, projections, and anonymous type results

Creating reusable IQueryable extension methods and expression trees for dynamic filtering and sorting

Translating stored procedures into LINQ queries and vice versa where performance demands it

Parsing and transforming XML and JSON documents using LINQ to XML and LINQ-style JSON queries

Writing unit tests for query logic with xUnit, NUnit, or MSTest using in-memory providers or mocking

Integrating LINQ-based data layers into ASP.NET Core APIs, Blazor apps, WPF, WinForms, and MAUI projects

Tools and frameworks LINQ developers work with

A capable LINQ developer is fluent in the broader .NET ecosystem. Expect proficiency with Visual Studio, Visual Studio Code, JetBrains Rider, and the .NET CLI. On the data side, common tools include Entity Framework Core, Entity Framework 6, Dapper for hybrid scenarios, LINQPad for query prototyping, SQL Server Management Studio, Azure Data Studio, and PostgreSQL or MySQL via providers like Npgsql and Pomelo.

Strong candidates also know expression trees, IQueryable versus IEnumerable behavior, async LINQ operators such as ToListAsync and FirstOrDefaultAsync, and how LINQ interacts with AutoMapper projections. Familiarity with Reactive Extensions (Rx.NET) and Parallel LINQ (PLINQ) is valuable for streaming and CPU-bound workloads.

Industries and use cases

LINQ work appears across virtually every sector that runs on the .NET stack. Common engagements include fintech reporting systems, healthcare data processing, e-commerce catalog and order pipelines, logistics and inventory dashboards, SaaS multi-tenant platforms, enterprise line-of-business applications, and government or insurance back-office systems. LINQ is also central to ETL utilities, internal admin tools, and reporting layers built on top of data warehouses.

How to evaluate LINQ candidates

Look for developers with strong C# fundamentals, hands-on Entity Framework Core experience, and a portfolio that demonstrates query optimization, not just CRUD. GitHub repositories, contributions to .NET open source, and Microsoft certifications such as the Microsoft Certified: Azure Developer Associate are positive signals. Ask candidates to walk through a slow query they fixed and explain the SQL their LINQ produced.

Useful interview questions to copy and use:

What is the difference between IEnumerable and IQueryable, and when would you choose one over the other?

Can you explain deferred execution in LINQ and give an example where it caused a bug you had to fix?

How would you diagnose and resolve a LINQ to Entities query that runs fast in development but times out in production?

When would you use a stored procedure or raw SQL instead of LINQ inside an Entity Framework Core project?

How do you build dynamic queries at runtime using expression trees or libraries like System.Linq.Dynamic.Core?

Why hire LINQ developers on Freelancer.com

Freelancer.com gives you access to a global pool of vetted .NET and LINQ specialists across every experience level, from junior developers handling query refactors to senior architects designing data layers for enterprise applications. You can review profiles, portfolios, certifications, and verified client reviews before you commit, and clients on Freelancer.com set their own budgets and receive competitive bids from freelancers worldwide.

The platform supports short fixes, long-term contracts, and full project builds, with Milestone Payments that release funds only when work meets your expectations. Whether you need a one-off query optimization or a dedicated developer to own your data layer, freelancers on Freelancer.com cover every time zone and technology depth you might require.

Post a project on Freelancer.com today and connect with skilled LINQ developers ready to optimize your queries, build your data layer, and ship clean, performant .NET code.

What are the steps to hiring a freelance LINQ developer?

Hiring a LINQ developer on Freelancer.com follows a straightforward three-step process. The clearer your brief, the better the bids — LINQ work spans everything from quick query fixes to full data-layer architecture, so describing your stack and your goals upfront saves time on both sides.

Step 1: Post your project on Freelancer.com

The project post is the single biggest determinant of bid quality, because LINQ engagements vary so widely in scope and stack. A precise brief filters out mismatched candidates and attracts developers whose Entity Framework Core, expression tree, or query optimization experience genuinely fits your work. Head to the post project page , fill in the brief, scope, timeline, and budget, and publish your project for freelancers to bid on.

Specify your .NET version (.NET 6, 7, 8, or .NET Framework) and ORM (EF Core, EF 6, Dapper, or none)

Name your database engine — SQL Server, PostgreSQL, MySQL, SQLite, or another provider

Describe the data sources involved: relational tables, XML documents, JSON payloads, or in-memory collections

State the deliverable — query optimization, repository implementation, ETL job, or full data layer

Share existing code samples, schema diagrams, or problem queries where possible

Set a realistic timeline and indicate whether the engagement is fixed-scope or ongoing

Step 2: Review bids from freelancers

Bids are short proposals, not just price quotes. Strong LINQ developers will reference your stack specifically, ask informed questions about your schema or query patterns, and propose an approach grounded in IQueryable behavior, async operators, or specific EF Core features. Read each proposal carefully and shortlist candidates whose understanding of your problem matches the brief.

Look for clear technical reasoning about deferred execution, projections, or query translation

Note questions raised about indexes, navigation properties, or expected data volumes

Check that proposed timelines match the complexity of the work — overly fast bids are a warning sign

Review attached samples of LINQ code, GitHub repositories, or LINQPad scripts

Use Freelancer.com chat to ask candidates how they would approach a representative query before shortlisting

Step 3: Evaluate freelancers and award the project

The final decision combines proposal quality with profile evidence. For LINQ work, weigh consistency across past .NET projects rather than a single standout sample, and pay attention to clients who left detailed reviews about code quality, communication, and performance outcomes. Verified credentials and a strong completion rate matter when the work touches production data layers.

Review portfolio depth across C#, EF Core, and broader .NET projects

Check star ratings and the volume of completed projects in related skill categories

Read written client reviews for mentions of query optimization, code clarity, and reliability

Confirm verified payment method, completion rate, and on-time delivery rate

Award the project and use Freelancer.com Milestone Payments to release funds only as agreed deliverables are accepted

What is the difference between a LINQ developer and a general C# developer?

Every LINQ developer is a C# or VB.NET developer, but not every .NET developer has deep LINQ expertise. A LINQ specialist focuses on query composition, expression trees, IQueryable provider behavior, and ORM-level performance tuning, which matters most when your application is data-heavy or when generated SQL is causing performance problems.

Do I need a LINQ developer or someone who just knows Entity Framework?

The two skills overlap heavily because Entity Framework Core uses LINQ as its primary query language. If your project centers on EF Core data access, hire a developer who lists both. If you also work with in-memory collections, XML, JSON, or non-EF data sources, prioritize candidates with broader LINQ experience.

Can I hire a LINQ developer for a one-off project?

Yes. Common short engagements include optimizing a handful of slow queries, refactoring legacy ADO.NET code into LINQ, building a single reporting module, or auditing an existing data layer for performance issues. You can scope the work tightly and post a project on Freelancer.com to receive bids within hours.

How long does a typical LINQ project take?

Timelines depend on scope. A targeted query optimization or bug fix may take a few days, while building a complete EF Core data layer for a mid-sized application typically runs several weeks. Long-term retainer arrangements are common when LINQ work is part of ongoing feature development.

Should I hire a freelancer or an agency for LINQ work?

For focused LINQ tasks, query optimization, or augmenting an existing in-house team, an independent freelancer is usually faster and more cost-effective. Agencies make more sense when you need a full multi-disciplinary team covering frontend, DevOps, and database administration alongside the .NET work.