Senior .NET Engineer for AI-First Mortgage Platform

Cotality; Dallas (TX); On-site; USD 112,000 - 145,000; Full time

Benefits offered by this job

Generous PTO

11 paid holidays

Parental leave up to 16 weeks

Health plans with mental health & well

401(k) with match

Well‑being stipend

Tuition assistance

Recognition rewards

Job summary

Cotality is seeking an experienced engineer to drive AI‑first engineering across the mortgage technology platform. You will design, develop, and test complex enterprise systems using .NET technologies and champion the integration of Agentic AI, MCP, and approved AI tools into the SDLC to modernize the platform.

You will lead AI‑native transformation initiatives, own platform engineering across UI and API integrations, and help build scalable, secure services in a GCP environment.

Qualifications

• Core .NET expertise with 5‑8+ years in scalable applications using C# and .NET Core/.NET 8+.
• Full‑stack proficiency with ASP.NET Core APIs, modern frontend (Angular/React) and cloud CI/CD.
• Strong SQL skills across Oracle, SQL Server, or BigQuery and cloud platforms.
• System ownership experience and hands‑on AI tooling, LLM APIs, and agentic workflows.

Responsibilities

• AI‑Native Transformation & MCP server capabilities; use tools like BMAD to enable lender self‑service functionality.
• Platform & Cloud Engineering: maintain internal services, rating engines, and GCP CI/CD pipelines.
• Own Enablement Lifecycles: define architectures, AGENTS.md, and skill architectures for AI tool adoption.
• Leadership trajectory: pair program with TDD, mentor QA/product/client stakeholders, drive end‑to‑end workstreams.

Skills

.NET 8/9

C#

ASP.NET Core

Angular

Agentic AI

SQL Server

TDD

Solution-oriented thinking

Education

Bachelor's degree in Computer Science/Software Engineering or related field

Tools

Apache Kafka

Model Context Protocol (MCP)

Micro Frontends

CI/CD Jenkins Pipelines

Job description

Cotality is seeking an experienced engineer to drive AI‑first engineering across the mortgage technology platform. You will design, develop, and test complex enterprise systems using .NET technologies and champion the integration of Agentic AI, MCP, and approved AI tools into the SDLC to modernize the platform.

You will lead AI‑native transformation initiatives, own platform engineering across UI and API integrations, and help build scalable, secure services in a GCP environment.