Principal Software Engineer: AI-Driven, Hands-On Leader

loanDepot, Inc.; California; On-site; USD 141,000 - 233,000; Full time

Benefits offered by this job

Medical/Dental/Vision

Tuition reimbursement

Wellness program

Generous paid time off

Job summary

loanDepot is seeking a Principal Software Engineer in California to lead hands-on technical work across the technology ecosystem. You will define and deliver enterprise software capabilities, guide modernization, and drive AI-assisted engineering practices in a large mortgage platform.

Role emphasizes deep technical expertise in C#/.NET, SQL Server, Azure, and distributed systems, while mentoring engineers and collaborating with security, data, and platform teams.

Qualifications

• 10+ years of professional software engineering experience in enterprise systems.
• Expert C#/.NET proficiency and Microsoft ecosystem knowledge.
• Advanced Microsoft SQL Server and T-SQL experience.
• Experience designing APIs, distributed services, and enterprise integration architectures.
• Strong experience with Microsoft Azure or comparable cloud environments.
• Deep understanding of distributed systems, asynchronous processing, caching, concurrency, resiliency, and failure handling.
• Solid knowledge of secure development practices and application security.
• Experience with Python, JavaScript, and/or TypeScript preferred.

Responsibilities

• Design and implement enterprise-grade applications, APIs, services, integrations, and platform capabilities.
• Provide deep technical leadership within the C#/.NET and Microsoft ecosystem.
• Guide complex SQL Server architectures, data models, integration patterns, and performance optimization.
• Design resilient distributed systems and integration patterns across cloud and enterprise platforms.
• Guide modernization of legacy applications balancing continuity, debt, and delivery speed.
• Define appropriate API, messaging, event-driven, and data integration patterns.
• Ensure applications are designed for production observability, supportability, scalability, and reliability.
• Partner with platform, DevOps, security, architecture, data, and engineering teams.
• Mentor engineers in AI-assisted and agentic development practices.

Skills

C#/.NET

Microsoft SQL Server

Azure

APIs

Distributed systems

Security

Python

JavaScript/TypeScript

AI-assisted engineering

Technical leadership

Education

Bachelor's degree in Computer Science or related field

Tools

AI coding assistants

Job description

loanDepot is seeking a Principal Software Engineer in California to lead hands-on technical work across the technology ecosystem. You will define and deliver enterprise software capabilities, guide modernization, and drive AI-assisted engineering practices in a large mortgage platform.

Role emphasizes deep technical expertise in C#/.NET, SQL Server, Azure, and distributed systems, while mentoring engineers and collaborating with security, data, and platform teams.