Improving Mexico, is a TI services company focused on changing positively how IT professionals are perceived. We deliver solutions through IT consulting, software development, and agile training—while building a culture grounded in teamwork, excellence, and fun.
In this role, we will strengthen and evolve our existing .NET Framework 4.8 applications. You will work with legacy codebases, supporting reliability and maintainability while improving core functionality—backed by complex SQL development, stored procedure work, and stable on-prem IIS deployments.
Apply to this job from Get on Board.
Key responsibilities
We will have you maintain and enhance .NET Framework 4.8 applications, including complex SQL work and legacy code stewardship.
Maintain and enhance .NET Framework 4.8 applications.
Write complex SQL queries.
Maintain legacy code.
We will also rely on you to independently troubleshoot and ensure reliable operation across the existing stack (ASP.NET MVC/Web API, console/scheduled tasks, and Windows Services), keeping deployments stable in IIS (web.config, app pools).
Required
We are looking for a senior .NET engineer (~5+ years) who can independently troubleshoot and maintain legacy systems, with deep hands-on experience across the .NET Framework 4.8 ecosystem.
Senior .NET (~5+ yrs); troubleshoots and maintains legacy independently.
Deep, hands-on C# on .NET Framework 4.8.
Entity Framework 6 with SQL Server, plus T-SQL for complex queries and experience working with stored procedures (authors/tuning).
ASP.NET MVC and Web API, including console/scheduled tasks and Windows Services on Framework.
Experience deploying on IIS on-prem (web.config, app pools).
Legacy comfort: no rewrite reflex—maintainability-minded.
Strong communication and collaboration.




We value engineers who can work calmly in existing systems, clarify requirements with stakeholders, and collaborate effectively with the team to deliver incremental improvements.
Nice to have
Third-party API integration and custom client integration.
Legal-tech or service of process domain knowledge.
Document/PDF processing experience.
Claude Code experience and/or .NET 9+ exposure.
Awesome Benefits :
Major Medical Expense Insurance
Life Insurance
Dental and Vision Insurance
Mental Health Support
IMSS (Mexican Social Security)
Seniority Bonus
Savings Fund Program
Career Development Plan
Christmas Bonus (Aguinaldo)
Vacation Bonus
Corporate Retirement Plan
Certifications and Training Programs
Internal Events
TotalPass Wellness Program
Additional Paid Time Off
Additional Protection and Discounts
Auto and Motorcycle Insurance
Pet Insurance
Personal Belongings Insurance
And much more!!!
*** Please note that our offices are located in Guadalajara and Aguascalientes. Candidates from other cities are welcome to join us through our remote work model. ****
GETONBRD Job ID: *****
Relocation offered
If you are moving in from another country, Improving helps you with your relocation.
Partially remote
You can work from your home some days a week.
Health coverage
Improving pays or copays health insurance for employees.
Computer provided
Improving provides a computer for your work.
Vacation over legal
Improving gives you paid vacations over the legal minimum.
Beverages and snacks
Improving offers beverages and snacks for free consumption.
Remote work policy
Hybrid
This job is performed partly from home and partly at the office in Ciudad de México, Guadalajara, Monterrey, Aguascalientes or Querétaro (Mexico).

📌 .Net Developer (Xico)
🏢 Improving
📍 Xico