Windows Agent & SaaS Backend MVP (No Frontend)

@AwaisChaudhry

Hello, I understand you're looking to develop a Windows Agent and a SaaS Backend MVP without a frontend. The project involves creating a C#/.NET 8 Windows Service that performs enrollment, manages secure communications with mTLS, and executes PowerShell tasks while sending back the results. The backend will handle user requests through a series of secure API endpoints, validate client certificates, and use PostgreSQL for data persistence. I aim to ensure the agent installs smoothly, polls regularly, and logs accurately, all while providing clear documentation for setup and operation. What specific tasks do you anticipate the agent will need to perform via PowerShell? Thanks, Muhammad Awais

@ambar

You’re not asking for a toy demo. You’re asking for a secure backbone: a Windows agent + backend that works reliably, validates trust with mTLS, and is reproducible in Docker. That stood out to me immediately—most MVPs cut corners on auth, but you’re insisting on certificate enrollment from day one. ✔️ I’ve built Windows services that handle CSR, CA chain, and cert storage in Windows Cert Store. ✔️ I know the heartbeat → fetch tasks → run PowerShell → return results loop you need. ✔️ EF Core migrations, PostgreSQL, Docker—delivered with scripts so setup is repeatable. ✔️ Logs lean (Info/Error only). Retries back off gracefully. ➡️ In short: you’ll get a production-minded MVP. Secure, minimal, and ready to extend. ✳️ One question: do you already have a CA preference (step-ca, custom scripts), or should I bundle a simple enrollment script for demo?

@talhaamin

I can deliver your Agent and Backend exactly as specified with .NET 8, ensuring secure mTLS, clean architecture, and reproducibility. I’ve built Windows Services that securely execute PowerShell tasks and ASP.NET Core APIs with EF Core/PostgreSQL and certificate-based auth. On the agent side, the Windows Service will generate a keypair on first run, submit a CSR with bootstrap token, and store the signed cert in the Windows Cert Store. It will check in every 60 seconds with exponential backoff, send hostname and IPs, fetch tasks, execute PowerShell commands, and post results including stdout, stderr, exit code, and duration. Logs will go to the Windows Event Log or local file with only Info/Error levels. The backend will be ASP.NET Core with PostgreSQL and EF Core migrations. It will enforce mTLS, validate client certificates, and map them to agents. Enrollment will return a signed cert and CA chain. Heartbeats will return pending tasks, results will be accepted via secure endpoints, and operators can queue PowerShell tasks and retrieve results. Deliverables include full source code in a Git repo, backend Dockerfile and optional docker-compose, EF Core migrations plus SQL scripts, sample CA and enrollment scripts, and a README with instructions for local run, cert generation, enrollment, and end-to-end testing.

@LiveExperts

Hello, With almost limitless options for freelancers, you're likely to find C# and .NET developers left and right, but hiring someone with a proven track record - that's where the real value lies. As leader of a highly skilled team at Live Experts, countless successful projects in your field of interest have been completed. Our deep understanding of Windows services development enables us to quickly grasp your requirements to build the essential Agent service. When creating a SaaS system like this one, security is paramount. Using mTLS and adhering to industry-mandated standards is something that our team deals with on a daily basis. Additionally, we have profound knowledge and experience in PostgreSQL along with Entity Framework Core- which suits perfectly for your persistence needs. One thing I'd like to emphasize is our ability to deliver not just functioning code, but reproducible code. We will provide clear instructions in our README document on how to run the system locally, step-by-step CA/cert generation procedures, efficient agent enrollment methods, and most importantly an end-to-end test to illustrate how everything works together. We intend to make it simple for you or any future developers who would have to interact with this code base. You can expect nothing short of excellence from my team at Live Experts. Contact us today and let's embark on this project together, guaranteeing utmost accuracy and efficiency in all project stages! Thanks!

@ZohaibRoy

⭐⭐⭐⭐⭐ Create a Reliable Agent with C#/.NET for Windows Services ❇️ Hi My Friend, I hope you're doing well. I’ve reviewed your project requirements and see you are looking for a C#/.NET Agent for Windows Services. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for Windows Services and backend development. I will design the agent to perform enrollment, execute tasks, and log results efficiently. ➡️ Why Me? I can easily create your C#/.NET Agent as I have 5 years of experience in Windows Services, .NET development, and database management. My expertise includes creating secure mTLS connections, handling PowerShell commands, and working with PostgreSQL and Entity Framework Core. I also have a strong grip on designing efficient APIs and logging mechanisms. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ C# Development ✅ .NET 8 ✅ Windows Services ✅ mTLS Implementation ✅ PostgreSQL ✅ Entity Framework Core ✅ PowerShell Scripting ✅ API Development ✅ JSON Handling ✅ Logging Mechanisms ✅ Docker Setup ✅ SQL Migrations Waiting for your response! Best Regards, Zohaib

@irsolutions

Based on my extensive experience in Windows Agent development and SaaS Backends using C#/.NET, I understand the critical requirements for your project. Your need for a Windows Service that performs enrollment, executes PowerShell tasks, and communicates securely with the backend aligns perfectly with my skill set. In the past, I have successfully developed similar solutions for clients in the FinTech and HealthTech industries, ensuring seamless communication between agents and servers while maintaining the highest security standards. My expertise in implementing mTLS, handling PostgreSQL databases, and designing efficient API endpoints will be instrumental in delivering a reliable and scalable solution for your project. To ensure the success of your project, I am ready to provide full source code, Dockerfile for the backend, EF Core migrations, and a comprehensive README guide for setup and testing. With a budget of $1200 and a timeline of 20 days, I am committed to delivering quality results that meet your expectations. Let's discuss how I can contribute to your project. Feel free to reach out to me to get started right away.

@AITSoft

Hello, I'm excited about the opportunity to work on the Windows Agent & SaaS Backend MVP project! I understand that you need a robust Windows Service that handles enrollment, task management, and logging while communicating securely with the backend. My approach will involve implementing mTLS for secure communication, ensuring that the agent can efficiently check in with the backend and handle PowerShell tasks. The backend will be built using C#/.NET 8, focusing on a clean, efficient API with PostgreSQL for data persistence. I will also ensure that the agent and backend meet the acceptance criteria, including effective error handling, logging, and a reproducible setup, complete with migrations and a Dockerfile. This way, you can easily run and test everything locally. I'm ready to dive in and bring your vision to life! What specific features or workflows do you envision for the agent's PowerShell tasks and how should they be prioritized? Thanks, Shamshad

@MashoodurRehman1

I am C#/.NET developer and have excellent experience in agent development and backend (Windows and ASP.NET Core) and I can build a Windows Agent & SaaS Backend MVP with no frontend and I am pretty sure that I can complete every bit of your requirements. Further details and cost can be discussed.

@malballah

Greetings! I have been building software systems since 2006. I am a software engineer and architect with a big experience in C#, .NET Core, ASP.Net Core,. Net 5, .NET 6 , Entity Framework Core, SQL Server, Design Patterns, Clean Code, Onion Architecture, Modular Architecture, IdentityServer 4, All Azure services, Auth, OOP, JavaScript, Angular 2/8, VueJs 2,3, jQuery, CSS, and Bootstrap 3/4. I graduated from the faculty of engineering in 2006 with 15+ years of experience with software development, 10+ years' experience with .NET framework and SQL server, and 10+ years' experience with asp.net MVC and asp.net core. I am not just a programmer, I am an architect, analyzer and I am an expert in all the software development stages. I am smart, a good thinker, and extremely professional. I provide super quality with design patterns.

@mannanmaan1425

Hello Derek W., I have read the project details and understood the overall requirement. With 5 years of experience in .NET, Windows Desktop, C# Programming, Software Architecture, and API Development, I am confident in delivering a high-quality Windows Agent and SaaS Backend MVP for you. For the Windows Agent, I will ensure it runs as a Windows Service, performs enrollment, and executes tasks while maintaining logging standards. On the Backend side, I will implement mTLS validation, PostgreSQL with Entity Framework Core for persistence, and necessary API endpoints for agent communication. You can view my portfolio here: https://www.freelancer.com/u/mannanmaan1425 Please ping me back so we can discuss the project further in the chat. Best regards, Abdul

@seefattechnologi

Got the given description ------------I have extensive experience with similar PROJECT Windows Agent & SaaS Backend MVP (No Frontend) ---->>I am highly qualified to do this job with high QUALITY ----- I am Passionate .NET /Full stack developer having rich experience with so many successful Tasks. I have some queries to give you accurate time and price Please ping me to get started and provide you great results. Thanks

@a4logic

Hello, With a wealth of experience in C# programming, our team at Our Software boasts the skills and expertise necessitated by your project. We understand the critical importance of ensuring your Windows Agent & SaaS Backend MVP runs seamlessly, and our proficiency in working with C#, .NET, ASP.NET Core and PostgreSQL aligns perfectly with your needs. Outstanding delivery of results is one of our key focal points; thus, we guarantee to provide you with full source code, EF Core migrations or SQL scripts, a Dockerfile (plus optional docker-compose) for the backend alongwith an exhaustive README comprising detailed intructions and insights on local run and every aspect of the project. We are accustomed to working with technologies that empower mission-critical operations while delivering data integriry and security. Our adept handling of mTLS concerns and Entity Framework Core for persistence enables us to address the multi-layered requirements you've outlined in your project description. Furthermore, our reputation for producing only Info/Error logs across all our projects stands to corroborate our commitment to providing clean, efficient APIs—a quality that will undeniably be an asset in tackling your backend specifications where PostgreSQL + EF Core is particularly required for persisting agents, tasks, results and logs. Lastly, as a prolific web service provider company we understand the importance of a reliable product design an Thanks!

@Herculesz

Hi, I can deliver the complete C#/.NET 8 agent and backend system as specified, with full mTLS authentication, PowerShell task execution, and heartbeat-based polling. A key challenge is secure agent enrollment and certificate handling—I’ll solve this using a bootstrap-token flow with CSR signing, storing certs securely in the Windows Cert Store. The agent will run as a Windows Service, post inventory every 60 seconds, execute PowerShell tasks, and report results with proper exit data. The backend will validate client certs against the CA, and expose clean REST endpoints using ASP.NET Core and PostgreSQL with EF Core migrations. Logging will be restricted to Info/Error only, either in the Event Log or local file as configured. I’ll include a Dockerfile, sample CA scripts, and a reproducible end-to-end flow for local testing and staging. Thanks, Hercules

@djsmoothy

With over a decade of experience in software development, I am excited to apply my extensive .NET and C# programming skills to this project. I have a deep understanding of backend development with ASP.NET Core and Entity Framework Core, which aligns perfectly with your project description and requirements. In fact, I have previously developed applications with similar functionalities, making me well-versed in designing robust and scalable Windows services. Additionally, my experience in API development and RESTful architectures ensures that I can create reliable and well-documented APIs for your application. I have worked with PostgreSQL as a backend data store and have written several migrations for different projects, giving me the necessary expertise to handle your frontend-to-backend data flow proficiently. Moreover, what sets me apart is my client-centric approach focusing on transparent communication and timely delivery. From a detailed README encompassing every step in the process to comprehensive migration or SQL scripts, you can expect deliverables that ensure reproducibility and ease-of-use. Together, let's bring your vision to life within the timeframe and quality you deserve.

@Cumuc

Hello, I went through your project requirements and it’s exactly the kind of system I’ve worked on before. The solution will involve building a Windows Service agent in .NET 8 that handles enrollment on first run by generating a keypair, submitting a CSR with the bootstrap token, and installing the signed client certificate into the Windows Certificate Store. From there it will check in every 60 seconds over mutual TLS, send inventory details like hostname and IPs, pull down any pending tasks, and execute them with PowerShell while capturing stdout, stderr, exit code, and duration. Logs will stay clean and minimal, written as Info and Error only. On the backend side, I’d set up an ASP.NET Core service with PostgreSQL and EF Core migrations to handle agents, tasks, and results. All endpoints will enforce mutual TLS, mapping certificates to agent IDs, and everything will be containerized with a Dockerfile (plus optional docker-compose) so the environment is fully reproducible. I’ll also provide a sample CA setup with scripts to demonstrate enrollment and end-to-end flow, along with a detailed README and test collection. Because I’ve built agent–server architectures with secure cert handling and task orchestration before, I’m confident I can deliver a reliable and production-ready implementation. The whole thing will be cleanly structured, easy to maintain, and designed so you can extend it later without rework.

@dvcontact

Hello, Are you looking for a highly efficient Windows Agent and SaaS backend solution? I would be happy to provide a free demo of our MVP before your decision. My goal is to develop a robust agent and backend system using .NET and PostgreSQL, tailored to your requirements. Let's discuss this further so I can share a detailed plan and demo with you. Regards, Smith

@juanjosec63

Hello, I have extensive experience building C#/.NET 8 Windows Services and ASP.NET Core backends with mTLS, PostgreSQL, and EF Core. I can develop your agent service to enroll, check in every minute, execute PowerShell tasks, and log only Info/Error, while the backend handles agent validation, task queuing, and results storage. The solution will include full EF Core migrations, Dockerized backend, reproducible CA/enrollment scripts, and a complete Git repository with README for easy setup and demo. I follow clean architecture principles, ensure secure mTLS communication, and provide thorough documentation for end-to-end deployment and testing. — Juan

@divumanocha

Hello, I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Divya

@OmarFarukBD

I AM NOT LIKE OTHER 99% OF SELLERS. YOU WILL PAY ONLY AFTER THE WORK IS COMPLETE, AND I ONLY FOCUS ON EXPLAINING WHAT I UNDERSTAND. PLEASE READ IT. I am going to start your project right now. I will develop a robust C#/.NET 8 Windows Service agent with mTLS enrollment, heartbeat, inventory reporting, and PowerShell task execution, plus a secure ASP.NET Core backend with PostgreSQL persistence, EF Core migrations, and Docker setup, delivering fully tested, production-ready code with clear documentation.