AI Platform Engineer

Core States Group · King of Prussia, PA · 2 wk ago

Full-time

At Core States Group, the work you do matters to the clients we serve, the communities we support, and the teams who rely on one another to deliver with excellence. Our mission is to create a world where all environments improve everyday life.

Benefits

Competitive wages and bonus programs
Great 401(k) match to help you invest in your future
Excellent health benefits, life insurance options, and supplemental benefit options
Generous PTO time to help you recharge and maintain a healthy work-life balance
Team wellness challenges, Costco membership reimbursement, half-day Fridays during summer months, and more
Flexible work environment supporting a healthy work-life balance
Four weeks of fully paid parental leave
Tuition reimbursement to support your learning journey

About the role

The AI Platform Engineer will be a member of the Digital Transformation team at Core States and report to the Director of that group. This role is responsible for building and maintaining the connectivity layer that makes the firm’s core systems accessible to AI, including integration services and MCP servers for business intelligence, ERP, design, and document management platforms, along with the authentication, logging, and evaluation infrastructure those integrations depend on.

Responsibilities

Design, build, and maintain integration services and MCP servers that expose firm systems — including Power BI and Fabric, Deltek Vantagepoint, Autodesk Platform Services, Egnyte, and internal applications — to approved AI platforms
Implement per-user authorization so AI access respects the permissions already defined in each source system, using Microsoft Entra ID and OAuth 2.0 delegated and on-behalf-of flows
Build audit logging, monitoring, and access reporting for AI-to-system traffic
Establish evaluation and benchmarking infrastructure, including automated tests for connector correctness, regression testing of model-facing behavior, and ongoing measurement of answer accuracy
Evaluate vendor-supplied connectors and MCP servers against in-house development, and make clear build-versus-adopt recommendations
Implement and maintain the entity resolution and crosswalk services that link records across systems, working from the semantic model defined with the Director of Digital Transformation and the data engineer
Advise on architectural decisions by surfacing tradeoffs, risks, and implementation constraints for the Director of Digital Transformation to decide
Develop and support AI-enabled features in internal applications, including LLM API integration, structured outputs, and prompt and version management
Write and maintain automated tests, technical documentation, and deployment automation for all platform components
Partner with the Technical Program Manager on scope, estimates, and delivery commitments, and with system owners on data access and governance questions
Other duties as assigned

Requirements

Bachelor’s degree in Business, Information Technology, Engineering, or relevant field; or equivalent professional experience
5+ years of professional software development experience, with significant time spent on backend services and system integration
Demonstrated experience integrating enterprise systems through REST APIs, including authentication, pagination, rate limiting, and error handling
Experience implementing OAuth 2.0 and OpenID Connect flows in a Microsoft Entra ID environment, including delegated and on-behalf-of scenarios
Experience building, deploying, and operating services in Microsoft Azure
Hands-on experience integrating LLM APIs into production software (OpenAI, Anthropic, or comparable)
Experience with MCP server development, or comparable tool and function-calling integration work, preferred
Experience building automated test suites or evaluation harnesses for systems with non-deterministic output preferred
Experience in the AEC industry or another project-based professional services business preferred

Skills

Strong C# and .NET Core development skills; Python or TypeScript for integration and tooling work
Working knowledge of REST API design and consumption, OAuth 2.0 and OpenID Connect, and secure token handling
Microsoft Entra ID application registrations, app roles, scopes, consent, and the implications of Conditional Access policies
SQL Server and relational data modeling, including comfort assessing query performance
Azure services relevant to hosting integration workloads, such as App Service, Functions, Key Vault, API Management, and Application Insights
Familiarity with the Model Context Protocol and tool and function-calling patterns, retrieval-augmented generation concepts, and prompt and version management
Source control, CI/CD, and infrastructure-as-code practices (Azure DevOps, GitHub Actions, Bicep or Terraform)
Familiarity with the APIs of relevant enterprise platforms preferred, including Power BI and Fabric, Deltek Vantagepoint, Autodesk Platform Services, Egnyte, and Microsoft Graph

Schedule

This position is currently hybrid-remote in the Philadelphia region, with occasional requirements to meet in person with coworkers for important meetings or team-building activities at our King of Prussia or Philadelphia offices.

Core States Group designs, builds, and manages programs and projects across North America and has been recognized on top lists throughout the architecture, engineering, and construction (A/E/C) industry. Established in 1999, the company offers integrated solutions with seamless continuity, serving notable brands across markets including Community, Convenience, Distributed Generation, Financial, Grocery, Housing, Industrial, Restaurants, Retail, Semiconductor, Tribal, Zero-Emission Vehicle (ZEV) Infrastructure, and more.