C# Back End Developer

  • Boston, MA
  • Posted 8 hours ago | Updated 8 hours ago

Overview

On Site
Accepts corp to corp applications
Contract - W2
Contract - 12 Month(s)

Skills

Oracle PL/SQL
C# BackEnd
ASPX.NET

Job Details

Job Title : C# Back End Developer

Location : Westlake, TX / Boston, MA (hybrid)
Duration : 12 Month

Must Have Skills:
-
-Java script, JQuery
-C#
-ORACLE PL/SQL
-Brokerage experience would be huge plus

Job Description

About the Role

We are seeking two experienced Senior C# BackEnd Developers to join our team dedicated to maintaining, enhancing, and strategically refactoring a critical, high-volume legacy application. This role requires strong proficiency in classic Microsoft technologies coupled with a sharp focus on performance optimization and code quality.

The ideal candidate must be able to quickly grasp complex business domains to effectively contribute to feature development and testing efforts.

*** Experience in the Brokerage industry is a significant advantage (a huge plus).

Key Responsibilities

  • Feature Development: Design, develop, and implement new features for the core product, ensuring high standards for performance and reliability.
  • Code Maintenance & Refactoring: Actively maintain the existing legacy codebase, focusing on library patching, security updates, and refactoring to improve code health, performance, and scalability.
  • Incident Resolution: Collaborate closely with the Support Team to rapidly track down, debug, and fix production errors and system anomalies.
  • Testing & Domain Expertise: Quickly achieve a deep understanding of the business domain to contribute effectively to software testing and ensure functional correctness.
  • Performance Optimization: Identify and address performance bottlenecks within the application and database layers.

Required Technical Skills

This role requires a senior developer who is comfortable with established Microsoft frameworks and relational databases.

Skill Category

Technology/Tool

Minimum Experience

Backend & Core Language

C#, (Framework),

5+ Years

User Interface (UI)

Web Forms, JavaScript, JQuery, CSS

5+ Years

Database

Oracle PL/SQL (stored procedures, functions, packages)

5+ Years

Web Infrastructure

Classic Web Forms architecture

5+ Years

Desired Skills & Experience (Preferred)

  • Proven experience working with and modernizing large-scale legacy systems.
  • Deep understanding of brokerage, financial services, or trading business processes.
  • Experience in performance tuning both .NET applications and complex Oracle SQL queries.

Job Responsibilities

  • Feature Development: Design, develop, and implement new features for the core product, ensuring high standards for performance and reliability.
  • Code Maintenance & Refactoring: Actively maintain the existing legacy codebase, focusing on library patching, security updates, and refactoring to improve code health, performance, and scalability.
  • Incident Resolution: Collaborate closely with the Support Team to rapidly track down, debug, and fix production errors and system anomalies.
  • Testing & Domain Expertise: Quickly achieve a deep understanding of the business domain to contribute effectively to software testing and ensure functional correctness.
  • Performance Optimization: Identify and address performance bottlenecks within the application and database layers.
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