Home
Jobs
E-Solutions
Senior .NET (Legacy) Developer

Senior .NET (Legacy) Developer

On site

Toronto, Canada

Senior

Freelance

02-03-2026

Share this job:

Score my CV

Skills

Communication JavaScript C# SQL GitHub Version Control Problem-solving Programming Asp.Net SQL Server .NET React.js

Job Specifications

Senior .NET (Legacy) Developer

Location: Toronto, Canada

Employment Type: Full-time

Role Overview

We are seeking an experienced Senior .NET (Legacy) Developer to support onboarding of new customers into existing enterprise applications. This role involves working on legacy systems built using ASP.NET WebForms and .NET Framework 4.7, with a strong focus on backend development and database programming.

The position requires hands-on coding, database modifications, configuration updates, and problem-solving during live interview exercises.

Work Split:

70% Application Coding
30% Database / Stored Procedures

Key Responsibilities

Perform configuration updates for onboarding new customers
Implement code enhancements and modifications in legacy .NET applications
Develop and modify SQL Server stored procedures
Analyze existing application logic and troubleshoot issues
Collaborate with cross-functional teams for smooth integration
Participate in technical problem-solving exercises during interviews
Maintain version control and follow development best practices

Must-Have Skills (4+ Years Experience)

Strong experience with C# 7.0
Solid SQL knowledge
Experience with SQL Server 2019+
Hands-on development of Stored Procedures
Experience with GitHub or other version control tools
Strong analytical and problem-solving skills
Ability to work independently and within a team
Excellent verbal and written communication skills

Good to Have (3+ Years Experience)

ASP.NET WebForms (.NET Framework 4.7)
Web API development
XML
React.js
JavaScript

Nice to Have

B2B integration experience

About the Company

"Empowering Technology Services” Founded in 2003, we are in our 22th year of structured growth. We are a talent-driven talent acquisition company providing individual consultants, project teams, and strategic outsourcing services to clients in various industries. E-Solutions is a certified minority-owned staffing firm spearheaded by industry experts. We offer award-winning solutions for the Global Talent Cloud. Our services include: • Workforce Solutions • Cloud Solutions • Salesforce Practices • Global Payrolling • MSP/V... Know more