
Closed
Posted
Paid on delivery
Our live platform, built on .NET Core (MVC, C#), needs an experienced bilingual Arabic/English developer to step in on a part-time basis and keep everything running smoothly while we roll out new capabilities. The work is time-sensitive—ideally code starts moving this week—so I need someone who can plug in and contribute immediately. Scope of work The current solution spans several modules that exchange data with internal and third-party services. Typical tasks include tracing and resolving production issues, refactoring brittle sections for performance, tightening security around existing endpoints, and adding small to medium features as specifications come through. You will work against an Azure DevOps repository, create pull requests with meaningful commit messages, and discuss design choices with me in both Arabic and English as needed. Deliverables (per sprint) • Reviewed and tested pull requests merged to main • Short release notes summarising fixes/enhancements in English and Arabic • Updated integration documentation when interface changes occur Acceptance criteria • No regression errors in automated CI pipeline • New or modified endpoints pass Postman test collection provided • Performance baselines (CPU, memory) remain equal to or better than current metrics The sooner we stabilise the backlog, the faster we can widen the roadmap, so availability to start ASAP is essential. Please confirm your weekly hours and any recent .NET Core MVC projects that demonstrate similar support and enhancement work.
Project ID: 40362081
120 proposals
Remote project
Active 21 secs ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
120 freelancers are bidding on average $536 USD for this job

You need a bilingual .NET Core developer who can plug into a live Azure DevOps-backed platform immediately, trace production issues, and ship clean PRs with Arabic/English release notes — that is exactly what we do. At Microlent Systems, we have delivered multiple ASP.NET Core MVC solutions involving REST API hardening, SQL Server performance tuning, CI pipeline integration, and third-party service modules — closely mirroring your current stack and sprint structure. We can commit 40+ hours weekly starting this week, follow your Postman test collections, maintain CPU/memory baselines, and communicate design decisions fluently in both Arabic and English — zero ramp-up friction. Let us connect today
$1,000 USD in 11 days
8.5
8.5

Hello, I understand your need for a quick, skilled developer who can support and enhance your .NET Core MVC platform bilingually in Arabic and English. I will focus on stabilizing your system by troubleshooting production issues, improving performance, and securing existing endpoints while adding features smoothly. I work directly within Azure DevOps, ensuring clean code with meaningful commits and clear documentation updates in both languages. Meeting your sprint goals and acceptance criteria will be a priority, including testing via Postman and maintaining performance metrics. I’m ready to start immediately and keep the backlog under control so we can expand your project roadmap. Could you please share current weekly hours required and access to any Postman collections or existing CI pipeline setup to understand the workflow better? Best regards,
$750 USD in 22 days
6.2
6.2

I have over 15 years of experience in .NET development, and I am confident that I can step in immediately to support your bilingual .NET Core platform. I understand the urgency of the project and am ready to start right away. My past projects involve similar support and enhancement tasks, ensuring smooth operation and efficient performance. I am willing to adjust the budget once we discuss the full scope of the project. Let's connect to discuss further and get started on stabilizing your backlog. Please review my profile for more details on my experience. Looking forward to hearing from you.
$368 USD in 8 days
6.2
6.2

Your Azure DevOps pipeline will fail silently if you're not logging exceptions at the middleware level - I've seen this exact pattern cause 3-hour outages because errors never surfaced in Application Insights. Before I touch your codebase, I need clarity on two things: Are you currently using structured logging with Serilog or NLog, and what's your average response time on the endpoints hitting third-party APIs? Here's how I'll stabilize your platform: - .NET CORE MVC: Refactor brittle controllers using the repository pattern and dependency injection to isolate business logic from data access, cutting unit test time by 50%. - AZURE DEVOPS CI/CD: Set up branch policies that block merges if code coverage drops below 80% and response times exceed 300ms under load testing. - API SECURITY: Implement token refresh logic and rate limiting middleware to prevent brute-force attacks on authentication endpoints without breaking existing client integrations. - SQL SERVER OPTIMIZATION: Profile slow queries using execution plans and add missing indexes on foreign keys - I recently cut a report generation time from 12 seconds to 800ms this way. - BILINGUAL DOCUMENTATION: Write release notes in both Arabic and English using technical terminology that your support team can actually reference during incidents. I've spent 8 years maintaining live .NET platforms for clients in Dubai and Riyadh where downtime costs $5K per hour. I don't write code that passes tests but breaks in production. Let's schedule a 20-minute call this week to review your current error rates and deployment frequency before I commit to sprint velocity.
$450 USD in 10 days
6.2
6.2

Hello, As a seasoned .NET expert with a strong background in Azure and C# programming, I am confident that I can successfully accomplish the scope of work you require for your platform's maintenance and expansion. At Live Experts, we value efficiency and timeliness, making us the perfect choice for your time-sensitive project. My team and I have vast experience handling similar projects, resolving critical issues, enhancing performance, reinforcing security measures, and implementing new features precisely as per the provided specifications. We understand the value of clean code and transparent collaboration, which is why we are well-versed in using Azure DevOps repository to create pull requests and communicate design choices effectively. Moreover, as a bilingual (Arabic/English) developer, I can ensure effortless discussions at all stages while also maintaining accurate documentation in both languages. Deploying our skills in Microsoft SQL Server we provide tested codes through continuous integration pipelines to prevent any regression issues. I'm eager to start immediately, so let's connect and drive your platform towards greater potential together. Thanks!
$750 USD in 4 days
5.8
5.8

⭐⭐⭐⭐⭐ Experienced .NET Core Developer for Your Live Platform Enhancements ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project needs and see you are looking for an experienced bilingual developer for your .NET Core platform. You don’t need to look further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for .NET Core development. I will ensure smooth operation while implementing new features, addressing production issues, and improving security. ➡️ Why Me? I can easily manage your .NET Core development needs as I have 5 years of experience in C#, MVC, and Azure DevOps. My expertise includes troubleshooting, refactoring code, and enhancing performance. Additionally, I have a strong grip on best practices in software development and security measures. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ .NET Core ✅ MVC Framework ✅ C# Programming ✅ Azure DevOps ✅ API Development ✅ Code Review ✅ Performance Optimization ✅ Security Enhancements ✅ Bilingual Communication (Arabic/English) ✅ Pull Requests Management ✅ Software Documentation ✅ Automated Testing Waiting for your response! Best Regards, Zohaib
$350 USD in 2 days
5.9
5.9

Hi I can step into your .NET Core MVC platform quickly and start contributing to stabilisation, performance improvements, and feature delivery while maintaining clean and reliable code practices. The main challenge in ongoing systems like this is dealing with tightly coupled modules, production issues, and integration points that can introduce regressions if not handled carefully. I would solve this by systematically reviewing problem areas, improving code structure where needed, and ensuring all changes are validated through your CI pipeline and Postman collections before merge. I’m comfortable working with C#, ASP.NET Core MVC, REST APIs, Azure DevOps workflows, and production debugging, along with writing clear PRs, release notes, and maintaining updated documentation. I can collaborate in both Arabic and English for technical discussions, ensuring smooth communication across requirements and implementation. My focus is to stabilise your backlog quickly while keeping performance, security, and maintainability aligned with your current standards. Thanks, Hercules
$500 USD in 7 days
5.9
5.9

Hi, I have strong experience with .NET Core, C#, ASP.NET MVC, SQL Server, and Azure-based systems, working on production platforms that require ongoing maintenance, debugging, and performance improvements. I can step into your existing codebase quickly, trace and resolve production issues, refactor unstable areas, improve API performance and security, and deliver clean pull requests with clear documentation and bilingual communication where needed. You can expect clear communication, fast turnaround, and a high-quality result that fits seamlessly into your existing workflow. Best regards, Juan
$350 USD in 1 day
5.6
5.6

Hi, If you need a .NET Core expert who can jump into a live system, fix issues fast, and keep releases stable — I can help. I bring 14+ years of experience working on production-grade applications using .NET Core (MVC, C#), including ongoing support, performance optimization, and feature enhancements. ✅ What you get: Fast issue tracing and resolution in live environments Clean refactoring of unstable or slow modules Secure, well-structured API and endpoint improvements Smooth collaboration via Azure DevOps with clear PRs and commit history Reliable delivery with zero regression impact I’m used to working on active systems with multiple integrations, ensuring stability while continuing to build new features. I don’t just fix bugs — I make sure the system becomes easier to maintain and scale. I’m available to start immediately and can commit 20–30 hours per week. If you’re serious, let’s talk — I’ll plug in quickly and start delivering from day one. Best, Manoj
$500 USD in 7 days
6.1
6.1

Hello there, I will step into your .NET Core MVC codebase this week — tracing production issues, refactoring brittle modules, tightening endpoint security, and delivering tested PRs against your Azure DevOps repo. I am comfortable communicating design decisions in both Arabic and English. One thing I will prioritize early: profiling the inter-service data exchange paths to identify latency bottlenecks before they become production incidents. Setting up lightweight Application Insights telemetry on critical endpoints gives you real-time baselines for CPU and memory — making your acceptance criteria measurable from day one. Questions: 1) Are the third-party integrations REST-based, or do any use message queues or gRPC? Send me a message and we can go over the details. Best regards, Kamran
$270 USD in 10 days
5.3
5.3

Hello Sir, Have you considered how a bilingual .NET Core expert can immediately enhance your platform's stability while you innovate? I provide seamless bilingual support in Arabic and English, ensuring not only technical excellence in .NET Core but also effective communication throughout the process. Let's connect to discuss how I can start supporting your project and bring immediate value. Best, Smith
$500 USD in 7 days
5.4
5.4

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I recently supported a live .NET Core MVC platform where I efficiently traced production issues and enhanced performance while managing bilingual documentation, enabling smooth and responsive service. From my experience, the most important aspect to complete this project successfully is understanding the existing multi-module architecture thoroughly to ensure seamless integration and avoid regressions. Approach: ⭕ Thoroughly review the current codebase and CI pipeline to immediately identify pain points ⭕ Prioritize and resolve production issues with careful testing to maintain or improve performance metrics ⭕ Implement feature enhancements following best security practices ⭕ Maintain bilingual communication for clear collaboration and detailed release notes in Arabic and English ⭕ Update integration documentation with every interface modification ❓ Do you have an estimated number of weekly hours required? ❓ Could you share the most critical modules that require immediate attention? ❓ Is there access to the current Postman test collections and CI setup for ongoing validation? I am confident in my ability to seamlessly integrate and start contributing from day one, ensuring your platform remains stable and ready for future growth. Looking forward to working with you. Best regards, Nam
$550 USD in 5 days
5.2
5.2

With proficiency in a wide range of programming languages, tools and methodologies such as .NET, Azure DevOps, CI/CD Pipelines and Agile, I would add significant value to your project. I recently completed a similar project where my task was to support and enhance an existing system built on .NET Core, and it makes me confident about my ability to be productive immediately for your platform. I don't wait for unsolicited instructions as that's not what an efficient developer does. Instead, I'll be proactive in identifying and resolving issues arising from the existing code structure with an eye on refining performance. Additionally, being bilingual (Arabic/English), our communications will be seamless. This factor is even more significant when discussing intricate design choices or sharing release notes that should be clear in both languages. With my strong track record in Website Development, Mobile App Engineering, and Creative Design, I will make sure your platform runs smoothly while you roll out new capabilities.
$400 USD in 14 days
4.7
4.7

Hello, I have read your job description and I am interested in your job post.I am ready to start now. Please send me a message to discuss more about your project, Can you please give me a chance I am a Senior Software Developer with over 8+ years of experience in designing and developing scalable web and desktop applications. I specialize in Microsoft technologies and delivering high-quality, secure, and performance-driven applications. My Expertise: Backend Development:ASP.NET, ASP.NET Core, MVC, Web API, WebForms, WCF Services Programming Languages:C#, Frontend Development:JavaScript, jQuery, AJAX, HTML, CSS Database Technologies:SQL Server, MySQL Reporting Tools:Crystal Reports, RDLC, SSIS, SSRS
$250 USD in 7 days
4.9
4.9

Hi, I am a .NET Core developer with 8 years of rich experience with a background in backend systems and production support. I am familiar with .NET Core, C#, ASP.NET MVC, Azure, SQL Server. For this project, the most important part is stabilising existing modules and fixing issues without breaking current workflows. This ensures reliable performance while new features are added safely. I will focus on clean debugging, secure endpoint updates, and well-tested changes with clear PRs and release notes. I'm an individual freelancer and can work on any time zone you want. Please contact me with the best time for you to have a quick chat. Looking forward to discussing more details. Thanks. Emile.
$250 USD in 7 days
4.7
4.7

I can start immediately — this week works for me. Your stack and the nature of the work are both a strong match. I've been working in .NET Core MVC and C# for 9 years across production platforms, including recent work at Gapfilm where I maintained high-traffic REST APIs, resolved production issues, and refactored legacy modules for performance and maintainability. That kind of ongoing support and enhancement work — tracing bugs, tightening endpoints, shipping small-to-medium features without breaking what's already running — is something I do well and actually enjoy. On the bilingual requirement: I'm a fluent Arabic and English speaker, so switching between both in design discussions, release notes, and documentation is natural for me, not an extra step. A few specifics relevant to your acceptance criteria: — CI pipeline hygiene: I'm disciplined about not merging code that breaks automated checks. PRs I submit will have meaningful commit messages and be tested before they hit review. — Postman collections: comfortable working against existing test suites and extending them when new endpoints come in. — Performance baselines: I've done concrete performance work before — at Gapfilm I integrated FusionCache on high-traffic endpoints and reduced average response time by 50% under peak load. I won't ship refactors that trade correctness for speed or silently degrade memory usage. — Azure DevOps: I've worked in Azure DevOps environments and am comfortable with the PR and pipeline workflow. Weekly availability: I can commit 20 hours per week part-time, with flexibility to push more during critical stabilisation periods if needed. I'd suggest a short call this week to walk through the current backlog and the areas you want stabilised first. The sooner I understand the codebase shape, the faster I can contribute meaningfully.
$500 USD in 7 days
4.7
4.7

Hi! i have seen your project and it looks like exactly the kind of .net core mvc support work i usually do. i have good experience in c#, .net core, mvc, sql server and api integration and also worked on fixing production issues and improving existing systems like yours. i can help you with tracing bugs, improving performance, securing endpoints and adding new features while keeping everything stable. i am also comfortable working with azure devops and pull request based workflow. can we have a quick chat sometime? i can share my portfolio, timeline and rough budget estimate in chat and also explain how i will handle the backlog. looking forward
$500 USD in 7 days
4.4
4.4

https://www.freelancer.com/projects/software-development/Parser-for-SQL-Migrations/reviews https://www.freelancer.com/projects/asp-dot-net-mvc/Integraci-Inventario-ASP-NET-MVC https://www.freelancer.com/projects/dot-net-core/Formulario-Blazor-con-Roles With my extensive experience in .NET Core, MVC, C#, and fluency in both Arabic and English, I am more than prepared to contribute immediately to your live platform. Having navigated various multi-module projects that interact with internal and third-party services, I have amassed a strong skill set geared towards troubleshooting and refactoring complex codebases for improved performance. Given the time-sensitive nature of your project, I understand the urgency required to maintain stability while incorporating new features, and I am ready to deliver. Utilizing an Azure DevOps repository is a task I am very comfortable with, I will ensure robust version management through a diligent usage of pull requests. Plus, my proficiency in designing secure endpoints will come in handy as you look to tighten security around your existing services. you can have confidence that delivery monies language will be done impeccably in both English and Arabic and considering our application has an Arabic audience. Best Regards
$300 USD in 7 days
4.5
4.5

Hello, I understand the urgency of your need for a bilingual Arabic/English developer to support your .NET Core platform. My experience aligns perfectly with the tasks you outlined, including resolving production issues, enhancing performance, and adding new features efficiently. I have a strong background in working with Azure DevOps repositories and collaborating on design choices effectively. I am ready to jump in immediately to help stabilize your backlog and ensure a smooth transition for the upcoming enhancements. My previous projects involved similar support and enhancement tasks in .NET Core MVC, showcasing my ability to deliver quality results promptly. I am confident that my skills and experience make me the ideal candidate to support your platform effectively. I am eager to discuss further details and clarify any expectations you have for this project. I look forward to the opportunity to contribute to the success of your platform. Best regards, Justin
$500 USD in 7 days
4.1
4.1

Hi, I can step in immediately to support your .NET Core MVC platform—handling production issues, adding new features, and ensuring optimal performance. I bring extensive experience with .NET Core, C#, MVC, and Azure DevOps in enterprise environments. To get started quickly, could you please share access to the Azure DevOps repository and the current Postman test collection? Happy to discuss further. Hisham
$500 USD in 7 days
4.2
4.2

Riyadh, Saudi Arabia
Member since Jun 15, 2023
$750-1500 USD
$10-30 USD
$30-250 USD
₹500 INR
£750-1500 GBP
$10-30 USD
$250-750 USD
₹1500-12500 INR
$30-250 USD
₹37500-75000 INR
₹12500-37500 INR
₹1500-12500 INR
₹1500-12500 INR
$30-250 USD
$5000-10000 AUD
$10-30 USD
$15-25 USD / hour
₹12500-37500 INR
$15-25 USD / hour
$30-250 USD
₹1500-12500 INR