Senior .NET Developer at Onset Technologies

United States, , USA -

Full Time

Start Date

Immediate

Expiry Date

06 Dec, 25

Salary

0.0

Posted On

07 Sep, 25

Experience

1 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Typescript, Entity Framework, Html, Javascript, Web Pages, Asp.Net, Stored Procedures, Software Development, Crystal Reports, Nunit, Sql Server, Web Applications, Css, Database Design

Industry

Information Technology/IT

Description

JOB DESCRIPTION:

Onset Technologies is seeking a Senior .NET Developer. The ideal candidate will have extensive experience in software development, production support, and database management, with strong proficiency in legacy ASP/ASP.NET systems, front-end technologies, and modern .NET frameworks. This role requires exceptional problem-solving skills, multitasking ability, and effective communication to manage multiple projects, resolve production issues, and collaborate with stakeholders across diverse applications.

REQUIRED SKILLS & EXPERIENCE:

20+ years hands-on experience in software development across legacy and current technologies.
20+ years experience with legacy ASP and ASP.NET web applications (please list project names).
20+ years experience with SQL Server, database design, Entity Framework, schema design, stored procedures, SSRS.
15+ years experience with front-end technologies: HTML, TypeScript, CSS, JavaScript.
15+ years experience with unit testing frameworks (nUnit) and writing unit tests.
10+ years experience with Crystal Reports (older and newer versions).
5+ years experience with ASP.NET Core for building RESTful APIs.
2+ years experience redesigning legacy ASP and ASP.NET 3.5 applications.
2+ years experience making web pages ADA 504 Compliant.

PREFERRED SKILLS & EXPERIENCE:

2+ years prior experience working with Texas Education Agency projects (please list projects).
1+ year experience with ArcGIS software.

Responsibilities

Develop, maintain, and enhance classic ASP and ASP.NET web applications.
Architect and optimize database schemas; write and troubleshoot complex SQL queries and stored procedures.
Work with Entity Framework, SSRS, and SSIS packages.
Build and maintain Web APIs using .NET Core with RESTful principles.
Utilize technologies including C#, Visual Studio, SQL Server (SSMS), TypeScript, CSS, JavaScript, Bootstrap.
Modify legacy applications to meet 504 ADA compliance standards.
Collaborate with cross-functional teams to define, design, and deliver new features.
Troubleshoot and resolve application issues and bugs in a fast-paced production environment.
Apply DevOps practices and CI/CD pipelines.
Work within Agile/Scrum methodologies.
Experience with ArcGIS is a plus.
Experience with Crystal Reports for both older and newer versions.