Sr Application Developer

PENNYMAC TPO; Westlake Village (CA); On-site; USD 90,000 - 150,000; Full time

Benefits offered by this job

Comprehensive Medical, Dental, Vision

Paid Time Off

Wellness programs

Retirement benefits including 401(k) match

Philanthropy programs

Job summary

A leading finance technology company in California seeks a Senior Application Developer to design, develop, and maintain high-performance enterprise applications. This role involves leveraging AI tools and AWS services, optimizing SQL Server code, and working within Agile methodologies. Ideal candidates have over 5 years of experience, strong C# skills, and a background in financial services. Competitive compensation includes a salary range of $90,000 - $150,000 and various benefits.

Qualifications

• 5+ years of relevant work experience.
• Experience with relational databases like MySQL, PostgreSQL, SQL Server.
• Financial services experience, especially mortgages, is desirable.

Responsibilities

• Design, develop, and maintain high-performance applications with C#/.NET.
• Optimize SQL Server stored procedures and analyze performance.
• Integrate applications with AWS services for various functionalities.
• Manage small development projects and contribute to larger initiatives.
• Enforce unit testing and integrate coverage into CI/CD pipelines.

Skills

C#

SQL Server

AWS Cloud

Agile Methodologies

Design Patterns

Unit Testing

Linux

Education

Bachelor’s degree or equivalent experience

Job description

Job Overview

Senior Application Developer (C#, SQL Server, AI-Accelerated, AWS Cloud) will design, develop, and maintain high-performance enterprise applications, leveraging AI-powered tools and AWS services to accelerate delivery and quality.

Core Responsibilities

• Use AI tools like Cursor and GitHub Copilot for rapid prototyping, intelligent code completion, refactoring, and generating unit tests.
• Design, develop, and maintain C#/.NET (Core/Framework) services and applications, specializing in back-end logic, APIs (e.g., ASP.NET Web API), and enterprise solutions.
• Develop, optimize, and tune high-performance SQL Server stored procedures, functions, and complex queries; analyze existing SQL code for performance bottlenecks and security vulnerabilities.
• Integrate applications with key AWS services: SQS for decoupling microservices, SES for transactional emails, S3 for object storage and static content hosting.
• Enforce high standards of unit testing, maintain required code coverage, integrate coverage analysis into CI/CD pipeline; employ BDD and TDD techniques, using AI-assisted tools.
• Manage small development projects independently, contribute as a senior team member on larger initiatives under Agile Methodologies; prepare, configure, and automate deployments to various environments, including production; provide technical support for escalated issues.
• Demonstrate professional behaviors and growth mindset aligned with organization values.

What You’ll Bring

• Bachelor’s degree or equivalent experience.
• 5+ years of relevant work experience.
• Knowledge of Agile Methodologies (XP, Scrum).
• Experience with relational databases (MySQL, PostgreSQL, SQL Server).
• Knowledge of design patterns, refactoring, and unit testing.
• Experience with Linux and open source software.
• Financial services experience, especially mortgages and mortgage-backed securities, is desirable.

Benefits

• Comprehensive Medical, Dental, Vision.
• Paid Time Off: vacation, holidays, illness, parental leave.
• Wellness programs, employee recognition, onsite gyms.
• Retirement benefits, life insurance, 401(k) match, tuition reimbursement.
• Philanthropy programs, matching gifts, volunteer grants.

Compensation

$90,000 - $150,000. Salary varies by role, location, skills, and experience. Eligible for performance-based compensation and/or stock-based incentives.

Work Model

OFFICE