We are looking for a Senior Full Stack Engineer who thrives in a startup-like environment inside an established auto lender – someone who can architect and ship production code across the front end and back end, integrate with mission-critical partners (e.G., credit bureaus, dealer systems, vehicle data providers), and set the engineering bar for the team.
Architect, build, and operate the full-stack services and user experiences that power loan origination, decisioning, and servicing our new Flagship Platform.Ship features end-to-end across our stack: Next.Js on the front end, C# / .
NET on the back end, PostgreSQL for data, and AWS ECS for infrastructure.Translate complex financial and operational workflows into clean, performant, well-tested code that holds up under regulatory scrutiny and production load.Lead integrations with credit bureaus (Experian, Equifax, TransUnion), dealer systems (DealerTrack, RouteOne), fraud and verification providers, and other third-party partners – including contract design, retry/idempotency strategy, and operational runbooks.Extend and customize our existing DEFI Solutions loan originations platform – configuring workflows, scorecards, rules, and decision flows, and developing services that integrate with DEFI via REST APIs and operational data store (MSSQL).
Drive observability, performance, reliability, and security across the services you own.Code Quality & Engineering PracticesSet the patterns for testing, observability, security, and CI/CD that the rest of the team adopts.Leverage AI-assisted development practices and tools (Copilot, Cursor, Claude Code, and similar) to accelerate delivery without sacrificing quality.Experience: 5+ years of professional software engineering experience.Full Stack Depth: Production experience building and operating modern web applications across both front and back end.
Expert-level proficiency in C# / .
NET and a modern React-based framework (Next.Js strongly preferred).
Data & APIs: Strong working knowledge of PostgreSQL (or a comparable relational database), RESTful API design, and SQL Server / T-SQL.Cloud & Infrastructure: Hands-on experience with AWS, including containerized workloads (ECS, EKS, Fargate, or similar) and Docker.Bachelor's degree in computer science, Engineering, or related technical field, or equivalent experience.Direct experience working with or building on DEFI Solutions, or equivalent commercial Loan Origination Systems.Experience with event-driven architecture and AWS messaging services (SNS, SQS, EventBridge, Kafka, or similar).
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