Principal Engineer - AI Full Stack Engineer

Job Title:

Principal Engineer I - AI Full Stack Engineer

Block 23

As a Principal Engineer I, you will serve as a senior technical contributor within your domain, applying deep expertise across multiple engineering disciplines to design and deliver complex solutions. This role is embedded within the Lending and Card Operations technology teams, with a primary focus on supporting the Lending Service Fabric (LSF) through modern, AI enabled full stack solutions. In this role, you will partner closely with architects, product owners, and business stakeholders to translate requirements into secure, compliant, and scalable designs.

You will apply AI forward engineering practices, guide technical implementation decisions, and help establish reusable patterns that improve delivery efficiency while aligning with WAB engineering and governance standards.

• Provide senior‑level technical leadership for Lending and Card Operations initiatives, contributing to solution architecture and engineering decisions aligned to business and regulatory requirements.
• Design and deliver AI‑enabled, cloud‑native full‑stack solutions that support loan and card processing, servicing, operations, and reporting, ensuring scalability, security, and compliance.
• Design and implement AI‑forward capabilities, including Prompt Engineering, MCP, and RAG‑based patterns, under established architectural guidance to improve automation, decisioning, and developer productivity.
• Design, build, and maintain enterprise APIs using Azure API Management (APIM), ensuring consistent security, versioning, throttling, observability, and lifecycle management.
• Own assigned portions of end‑to‑end technical solution design, producing clear and executable designs that can be delivered by engineering teams while adhering to WAB architecture standards and reuse of enterprise capabilities.
• Lead hands‑on full‑stack development across Azure, .NET, Python, React (Vite), SQL, and ETL pipelines, following modern Dev Ops practices using Git Hub, Azure Dev Ops, and Azure Pipelines.
• Apply AI‑assisted development practices (e.g., Git Hub Copilot and approved internal LLMs) to improve development speed and code quality while adhering to governance and security controls.
• Contribute to observability, performance, and reliability practices to ensure Lending and Card systems meet operational, security, and audit requirements.
• Review technical designs, code, and delivery plans developed by engineers to ensure solutions meet performance, resilience, and compliance expectations.
• Partner with business, architecture, security, and risk teams to translate Lending and Card requirements into compliant technical solutions, communicating effectively with both technical and non‑technical stakeholders.
• Mentor engineers and promote adoption of AI‑forward, cloud‑first, and platform‑driven engineering practices within the Lending and Card Operations technology teams.

• 8+ years of experience in software engineering or IT development, with demonstrated experience supporting Lending, Card, or Financial Services platforms.
• Hands‑on experience designing and developing cloud‑native applications on the Azure platform, including APIs, data integrations, and full‑stack solutions.
• Practical experience applying AI‑assisted development techniques (e.g., Prompt Engineering, RAG patterns, or GenAI development tools) in an enterprise environment.
• Strong experience with .NET, Python, modern JavaScript frameworks (React preferred), SQL, and ETL technologies.
• Bachelor’s degree in a related field required;
  Master’s degree or MBA preferred.
• Previous technical leadership or lead‑engineer experience preferred.

We offer all the important things you'd want — like competitive salaries, an ownership stake in the company, medical and dental insurance, time off, a great 401k matching program, tuition assistance program, an employee volunteer program, and a wellness program. In addition, you’ll have the opportunity to bolster your business knowledge, learning the ins and outs of how successful companies operate and manage their finances, giving you invaluable hands‑on experience to help grow your career!