Application Engineer - II

Vanguard is seeking an Application Engineer for a specialized development team working on an AI application project. This role provides a chance to collaborate with a dedicated team of data and machine learning engineers that we work with. It is a great opportunity for someone with a passion for AI and a desire to shape the future of our technological capabilities.

An overview of current team responsibilities:

• Frontend UI & middleware
• Backend API that implements SME-driven methodology & core logic for calculating a portfolio's risk profile based on structured portfolio data
• Prompt chaining within the backend API and invoking an LLM via Amazon Bedrock
• Storage and retrieval of insights using DynamoDB
• Storage and retrieval of prompt/request/response logs using S3
• Evaluation pipelines to monitor and measure LLM output on multiple dimensions
• Observability tooling for maintaining resiliency, availability, and traceability

A developer should have the following qualifications:

• Experience designing and implementing secure, production-grade RESTful APIs. Frameworks such as FastAPI or similar.
• Ability to build backend services using AWS ECS and/or serverless Lambdas, with appropriate IAM controls.
• Proficiency in translating SME-defined business logic into clean, modular, and maintainable application code.
• Full stack dev capabilities - including implementing frontend UIs (React/Angular), middleware, and managing state across the UI and backend.
• Familiarity with CI/CD pipelines for full stack deployment, including automated testing.
• Ability to design and integrate with DynamoDB for persistent data storage, including understanding Dynamo's access patterns.
• Comfortable implementing the full testing pyramid - unit tests, integration tests with mocked data, and end-to-end tests.
• Knowledge of observability practices for web services, including structured logging, metrics, traces, and alerting to support availability and reliability.
• Comfortable with auth flows, including integrating with Okta.

The current roadmap is built around leveraging hosting foundation models through Amazon Bedrock.

Our team's technical responsibilities include:

• building APIs
• responsive UIs
• integrating across services
• handling latency
• state management
• authentication flows
• data persistence.

Special Factors

Sponsorship
Vanguard is not offering visa sponsorship for this position.

About Vanguard

At Vanguard, we don't just have a mission-we're on a mission.

To work for the long-term financial wellbeing of our clients. To lead through product and services that transform our clients' lives. To learn and develop our skills as individuals and as a team. From Malvern to Melbourne, our mission drives us forward and inspires us to be our best.

How We Work

Vanguard has implemented a hybrid working model for the majority of our crew members, designed to capture the benefits of enhanced flexibility while enabling in-person learning, collaboration, and connection. We believe our mission-driven and highly collaborative culture is a critical enabler to support long-term client outcomes and enrich the employee experience.

Client-provided location(s): Malvern, PA

Job ID: Vanguard-172108

Employment Type: FULL_TIME

Posted: 2026-01-28T20:01:57