Demo

Senior Dotnet Developer

Sapphire Software Solutions Inc
Westlake, CA Contractor
POSTED ON 8/5/2025
AVAILABLE BEFORE 1/31/2026

1 571-556-1002 |naresh@sapphiresoftwaresolutions.com

Hiring Sr DOTNET Developer || Westlake Village, CA

Hi Folks, Please check the JD and share your updated resume

JD

Sr DOTNET Developer

1 year -Only W2-C2H

Our Client: PennyMac in Westlake Village, CA

5 days a week onsite in Westlake Village, CA. Must be onsite for day 1.

Available Positions: ~20

Hello – hope you are doing well!

We were previously being required to have candidates interview on site in Westlake Village, CA,

We are open to all candidates willing to relocate and be onsite 5x a week at their Westlake Village, CA location and who can convert to a full time W2 employee after 6 months


Job Description

The Senior Application Developer utilizes minimum requirements to develop technology solutions for the Mortgage Servicing platform using a cloud solution and Microsoft technologies, utilizing services from our cloud service provider. Will write high quality code to create complex business applications; test software during development; perform quality assurance and user acceptance testing; prepare software for deployment; provide post implementation support; prepare application documentation.


The Senior Application Developer will:

Use the latest tools and techniques (.NET, .NET Core, C#, Agile Methodologies, Web Services, SQL, SSIS)

In-depth knowledge of JavaScript, CSS, HTML, functional programming, and front-end languages

Prepare software for deployment to production environments

Respond to and resolve questions and issues logged by users of a live system

Manage small projects independently and work as a team member on larger projects

Perform other related duties as required and assigned

Demonstrate behaviors which are aligned with the organization’s desired culture and values


Additional Skills & Qualifications

Bachelor’s degree or equivalent work experience

6 years of relevant work experience

Knowledge of Agile Methodologies, such as Extreme Programming (XP) and Scrum is helpful

Experience with relational databases (SQL Server, MySQL, PostgreSQL)

Knowledge of design patterns, refactoring and unit testing

Experience with Linux and open source software is a plus

AWS Environment - EC2, SQS, SNS, Lambda, Containers, API Gateway experience highly preferred

Financial services experience, especially related to mortgages and mortgage backed securities, is desirable

AI Co-pilot or equivalent AI coding experience

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