Application Engineer - III, Secure Site

About the role

This role will be working on a collaborative full-stack engineering team responsible for modernizing and supporting critical Secure Site experiences, including Accounts, Transaction History, Order Status, and related client workflows. The team works closely with Product, UX, Platform, and Cloud partners to deliver high-impact functionality while continuously improving architecture and reliability. Our work is highly visible and allows for ample opportunity to stand out and present to our leadership team. We are Secure Site's junk drawer team, which has advantages and disadvantages, expect to be kept busy, but with an interesting and diverse set of work! Technology Stack & Experience Modern front-end development using React, TypeScript, and Microfrontends (MFEs) in Stencil Integration with shared UI frameworks such as AEM Content Fragments API-driven architectures including REST and GraphQL / Supergraph concepts. Our APIs are a mix of Java and Angular client-side framework with Nest.js Cloud-native deployment environments, primarily AWS. Observability tools including Splunk, Honeycomb, and Grafana CI/CD pipelines and automated testing practices. Modern AWS databases like DynamoDB AI assisted development using CoPilot, Claude, or similar LLM What You'll Gain Deep experience working on large-scale, client-facing applications. Exposure to modern architecture patterns and platform integrations. Opportunities to lead initiatives and influence technical direction. A collaborative team culture that values learning, mentorship, and continuous improvement. The team balances serious engineering work with a supportive and inclusive team culture. Engineers are encouraged to experiment, learn, participate in hackathons and demos, and bring their full selves to work while making a real impact for clients. Core Responsibilities 1. Provides senior level system analysis, design, development, and implementation of applications and databases. Integrates third party products. 2. Translates technical specifications into code for complex new or enhancement projects for internal clients. Writes programs, develops code, tests artifacts, and produces reports. Employs software development techniques to ensure tests are implemented in a way that support automation. 3. Elevates code into the development, test, and production environments on schedule. Provides follow up production support. Submits change control requests and documents. 4. Thoroughly understands software development methodology. Thoroughly understands development architecture standards. Trains and mentors staff with less experience. Resolves elevated issues. 5. Participates in design, code, and test inspections throughout the life cycle to identify issues. Explains technical considerations at related meetings, including those with internal clients. Performs systems analysis activities. 6. Thoroughly understands client business functions and technology needs. Has a broad understanding of Vanguard?s technologies, tools, and applications, including those that interface with business area and systems. 7. Interfaces with cross functional team members, and communicates systems issues at the appropriate technical level for each audience. 8. Thoroughly understands and complies with Information Technology and Information Security policies and procedures, and verifies that deliverables meet requirements. 9. Participates in special projects and performs other duties as assigned.