.NET Developer – Legacy Medical Application Bug Fix (Short-Term)

Posted 2 days ago

Only freelancers located in the U.S. may apply.U.S. located freelancers only

Summary

We are seeking an experienced .NET developer for a short-term, focused engagement to resolve a specific bug in a legacy medical application currently in production. This is a well-scoped project lasting approximately one to two weeks, ideal for someone who can quickly navigate older codebases and deliver a reliable fix without introducing regressions. The ideal candidate must have strong hands-on experience with .NET Framework 4.x, C#, and either WinForms or ASP.NET WebForms (depending on the application stack), along with proficiency in SQL Server for debugging stored procedures and queries. Familiarity with VB.NET is a plus, as the codebase may include mixed syntax. You will be responsible for reproducing the issue, identifying the root cause, implementing a clean and minimally invasive fix, and performing basic regression testing to ensure system stability. Given the critical nature of this application in a healthcare setting, attention to detail and documentation of changes for internal review and compliance traceability are essential. Prior experience with medical or healthcare IT systems is highly valued, as is any understanding of HIPAA, FDA software validation, or GxP requirements. We offer a fully remote, flexible engagement with quick onboarding, clear acceptance criteria, and access to the codebase, database schema, and test environment upon start. If you have successfully handled similar bug-fix or maintenance tasks on legacy systems, please reply with a brief summary of your relevant experience, availability, and hourly or project-based rate. Successful delivery may lead to additional follow-up work.

  • Less than 30 hrs/week
    Hourly
  • < 1 month
    Duration
  • Expert
    Experience Level
  • $60.00

    -

    $80.00

    Hourly
  • Remote Job
  • One-time project
    Project Type
Skills and Expertise
Mandatory skills
C#
ASP.NET MVC
JavaScript
Activity on this job
  • Proposals:20 to 50
  • Last viewed by client:2 days ago
  • Interviewing:
    0
  • Invites sent:
    0
  • Unanswered invites:
    0
About the client
Member since Feb 4, 2025
  • United States
    Quincy9:08 AM
  • $90 total spent
    4 hires, 0 active

Explore similar jobs on Upwork

Software DeveloperHourly‐ Posted 7 months ago
ASP.NET MVC
Django
Python
AngularJS
JavaScript
jQuery
WordPress
Google Chrome Extension
React
CRM Development
Microsoft Dynamics 365
Microsoft Dynamics CRM
Microsoft Dynamics Development
Microsoft PowerApps
Single Sign-On
Java
Spring Boot
Kubernetes
PostgreSQL
React
Apache Kafka

How it works

  • Post a job icon
    Create your free profile
    Highlight your skills and experience, show your portfolio, and set your ideal pay rate.
  • Talent comes to you icon
    Work the way you want
    Apply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
  • Payment simplified icon
    Get paid securely
    From contract to payment, we help you work safely and get paid securely.
Want to get started? Create a profile

About Upwork

  • Rating is 4.9 out of 5.
    4.9/5
    (Average rating of clients by professionals)
  • G2 2021
    #1 freelance platform
  • 49,000+
    Signed contract every week
  • $2.3B
    Freelancers earned on Upwork in 2020

Find the best freelance jobs

Growing your career is as easy as creating a free profile and finding work like this that fits your skills.

Trusted by

  • Microsoft Logo
  • Airbnb Logo
  • Bissell Logo
  • GoDaddy Logo