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Fiverr Pro
English
$
USD
I will modernize your legacy dotnet project for speed and stability
Daniel W.
Vetted Pro
Vetted by Fiverr Pro
Daniel W. was selected by the Fiverr Pro team for their expertise.
About this gig
I will modernize your legacy .NET project for speed, stability, and long-term success
Got a legacy .NET project that's outdated, slow, or fragile? I specialize in modernizing small to mid-size .NET apps by improving architecture, upgrading frameworks, boosting performance, and preparing your system for scale.
As a senior engineer with 8+ years of enterprise experience, I can help you transition from old, messy code to clean, modern, maintainable architecture with CI/CD, better testing, and long-term maintainability.
What I Offer:
- Upgrade from .NET Framework to .NET Core / .NET 6 or 8
- Refactor legacy code (async, DI, SOLID, modular patterns)
- Boost performance, reduce startup time, and fix slow queries
- Modernize logging, exception handling, and security layers
Please Note:
This gig is not suitable for large enterprise monoliths, unscoped mega-apps, or systems with no documentation.
If your codebase is very large or unclear, message me first for a custom quote or repo review.
Get to know Daniel W.
Daniel W.
Vetted Pro
I will streamline your workflows and solve tech problems
Daniel W. is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
Software Development
- FromUnited States
- Member sinceAug 2024
Languages
English
👋 Hi, I’m Daniel, a former Senior Software Engineer (GEICO, Progressive) with 7+ years of experience building clean backend systems and simplifying complex tech.
⚙️ I specialize in automation, API integrations, and modernizing legacy apps. I've led migrations to Azure Kubernetes (AKS), fixed critical backend issues, and mentored engineers.
🧠 ADHD helps me spot patterns fast and design systems that reduce overwhelm.
🌍 I’m highly adaptable and focused on ethical, remote-first consulting. Let’s build something better.
FAQ
What qualifies as a “small to mid-size” project for this gig?
This gig covers apps with up to 3 projects or ~30K lines of code. If your system is larger, undocumented, or deeply complex, please message me for a custom quote.
Can you upgrade from .NET Framework to .NET 6 or 8?
Yes! That’s one of my core specialties. I can guide you through the upgrade path, resolve compatibility issues, and modernize your architecture.
What if my app is too big for the Premium tier?
No problem — message me with a description or code repo. I offer scoped assessments and can provide a custom plan and quote for larger systems.
Will you help with CI/CD setup or cloud deployment?
Yes — I can add GitHub Actions, Azure DevOps pipelines, or Docker support. But this will depend on project scope and needs and will require a custom plan and quote.
What do you need from me to get started?
A working codebase (GitHub or zip), a short description of your goals, and any known issues or pain points. Optional: existing documentation or error logs.
Do you offer post-upgrade support or maintenance?
Yes — I can offer ongoing support or bug fixes as a custom extra. Just message me with your needs.
Can you help fix a broken .NET app that won’t run?
If the app is not compiling or running at all, please message me first. I may offer a code recovery or troubleshooting session separately before full modernization.
Will you rewrite my entire application?
This gig is for modernizing your existing code — not full rewrites. If you're looking to rebuild from scratch, I may offer guidance or planning support, but not total reimplementation.
Can you add tests to my codebase?
Yes! I can set up unit test scaffolding, refactor for testability, or add coverage for modernized modules. Include this as part of a custom request or add-on.
I’m not technical. Can you still help me?
Absolutely. I’ll explain what’s outdated, what needs improvement, and provide a roadmap in plain English if needed.
