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About the Role

defi SOLUTIONS builds loan origination and servicing software for banks, credit unions and lenders. This role focuses on expanding AI-assisted development across engineering teams, using AI coding tools and agents daily to shape their usage and ensure the quality of generated code. We seek engineers with strong analytical skills to break down ambiguous features, critically review AI-generated code, and deliver secure, tested software for regulated financial institutions.

Responsibilities

Design, build and maintain features across .NET services, Vue.js UI, and SQL Server schema.
Break features and epics into well-scoped, independently deliverable tasks with clear acceptance criteria.
Work with AI coding assistants and agents to accelerate delivery, and critically review all AI-generated code for correctness, security, performance and maintainability.
Apply the testing pyramid: unit, integration and end-to-end tests that give fast, reliable feedback.
Apply proven design patterns and secure-coding practices to code that handles sensitive lending data.
Diagnose and resolve complex production and performance issues, using logs, traces and metrics to find root cause.
Containerize and deploy services using Docker, Kubernetes, Helm and Terraform on Azure or AWS.
Build and improve CI/CD pipelines, and contribute to agentic tooling (MCP servers, hooks, custom skills) that makes the team faster and safer.
Partner with product, QA and client-facing teams to translate lending business rules into reliable software.

Requirements

5+ years of professional software development experience, including significant time building and operating production systems.
Working knowledge of the auto, mortgage or banking domain (origination, underwriting, decisioning, servicing, or related compliance).
Strong analytical and problem-solving skills, with a track record of debugging hard, ambiguous issues to root cause.
Ability to break features into well-scoped tasks and estimate and sequence them.
Strong command of design patterns and when not to use them.
Practical experience with the testing pyramid and writing maintainable automated tests.
Working knowledge of OWASP Top 10 and secure development practices.
Hands-on experience with agentic development using LLM-based coding tools.
Demonstrated ability to critically review AI-generated code: catching subtle bugs, insecure patterns, unnecessary complexity and hallucinated APIs.

Skills

.NET
Vue.js
SQL Server
Azure
AWS
Terraform
Docker
Kubernetes
Helm
CI/CD pipelines
OpenTelemetry (OTEL)
Agentic tooling
MCP servers
Hooks
Custom skills
Azure DevOps

Location

North America

Work Type

Full-time

Experience Level

Senior

About the Company

defi SOLUTIONS provides end-to-end, B2B SaaS lending and managed servicing solutions.
The company partners with many of the highest-volume captive auto lenders, banks, finance companies, and credit unions in North America.
Through its flexible and configurable loan origination platform, servicing technology, and managed servicing solutions, defi SOLUTIONS helps lenders improve efficiency, streamline operations, and address lenders' and borrowers' ever-evolving needs.
defi SOLUTIONS combines more than three decades of lending expertise, including the expertise of former Sagent Auto Lending, with the backing of Warburg Pincus, Bain Capital Ventures, and Fiserv.

Equal Opportunity

defi SOLUTIONS is an Equal Opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability or protected veteran status.