Sr DotNET Developer

Valiant Technologies LLC; Philadelphia (Philadelphia County); On-site; USD 90,000 - 130,000; Full time

Job summary

VALIANT TECHNOLOGIES LLC is seeking a software engineer to develop and integrate Web Services using WCF and RESTful APIs, optimize MS SQL Server databases, and apply MVC/MVVM/OOP patterns. You will work with ORM tools such as Entity Framework and ADO.NET and contribute to architecture decisions.

The role emphasizes Test-Driven Development, code reviews, and static analysis to ensure robust, maintainable code across projects.

Qualifications

• Experience building and integrating Web Services (WCF, RESTful APIs).
• Proficient in MS SQL/T-SQL with queries and stored procedures.
• Experience with ORM data access (Entity Framework, ADO.NET).
• Familiarity with MVC, MVVM, and OOP design patterns.
• Knowledge of common design patterns: Factory Method, Decorator, Command, Publish/Subscribe, Strategy.
• Experience with Test-Driven Development (TDD) and unit testing.

Responsibilities

• Develop and integrate Web Services using WCF and RESTful APIs.
• Optimize SQL Server databases with efficient queries and stored procedures.
• Leverage ORM for data access (Entity Framework, ADO.NET).
• Apply MVC, MVVM, and OOP patterns in software design.
• Implement design patterns including Factory Method, Decorator, Command, Publish/Subscribe, Strategy.
• Practice TDD with unit tests and maintain code quality through reviews and tooling.

Skills

Web Services

WCF

RESTful APIs

MS SQL/T-SQL

ORM (Entity Framework, ADO.NET)

MVC

MVVM

OOP

Unit Testing / TDD

Code Reviews & Quality Tools

Tools

WCF

REST APIs

MS SQL Server

Entity Framework

ADO.NET

MVC Framework

MVVM Frameworks

Design Patterns

Unit Testing Tools

Static Code Analysis

Job description

Responsibilities:-

• Develop and integrateWeb ServicesusingWCFandRESTful APIs.
• Implement and optimize database solutions usingMS SQL/T-SQL, including queries and stored procedures.
• Work withORM frameworkssuch asEntity Frameworkand ADO. NET for data access.
• Apply architectural patterns and programming paradigms includingMVC,MVVM, andOOP.
• Utilize design patterns such asFactory Method,Decorator,Command,Publish/Subscribe, andStrategyto build robust and maintainable applications.
• PracticeTest-Driven Development (TDD)by writing unit tests and ensuring code is testable.
• Improve code quality throughcode reviews,code coverage tools, andstatic code analysis tools.

VALIANT TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. VALIANT TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will VALIANT TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract