AI Platform Engineer

Core States Group; Philadelphia (Philadelphia County); Hybrid; USD 140,000 - 165,000; Full time

Benefits offered by this job

Competitive wages and bonus programs

401(k) match

Excellent health benefits

Generous PTO

Team wellness challenges

Costco membership reimbursement

Half-day Fridays

Tuition reimbursement

Job summary

Core States Group is seeking an AI Platform Engineer to join the Digital Transformation team in the Philadelphia region. You will build and maintain the connectivity layer enabling AI access to the firm’s core systems, including integration services and MCP servers for BI, ERP, design, and document management platforms, with robust auth, logging, and auditing.

Responsibilities include designing and deploying integration services, enforcing per-user authorization via Microsoft Entra ID, building

Qualifications

• Bachelor's degree in a relevant field or equivalent experience.
• 5+ years of professional software development experience.
• Experience with REST APIs, OAuth 2.0, and OpenID Connect.
• Azure cloud experience with hosting integration workloads.
• Hands-on experience integrating LLM APIs into production software.
• Familiarity with model-context protocol, tool-calling patterns, and RAG concepts.
• Source control, CI/CD, and IaC practices (Azure DevOps, GitHub Actions, Terraform).
• Experience with enterprise connectors and MCP servers is preferred.

Responsibilities

• Design, build, and maintain integration services and MCP servers exposing firm systems to approved AI platforms.
• Implement per-user authorization and secure token handling across source systems.
• Build audit logging, monitoring, and access reporting for AI-to-system traffic.
• Develop evaluation infrastructure and automated tests for connector correctness and model behavior.
• Evaluate connectors and make build-versus-adopt recommendations.
• Develop AI-enabled features in internal applications with LLM API integration.
• Write technical docs and deploy automation; collaborate with PMs and system owners.

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Full Time Technical King of Prussia, PA, US

9 days ago Requisition ID: 1472

Salary Range: $140,000.00 To $165,000.00 Annually

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 Cause is powerful: to create a world where all environments improve everyday life.

Why Professionals Choose Core States Group

Here’s what you can expect:

• COMPENSATION – Competitive wages and bonus programs
• RETIREMENT – We offer a great 401(k) match to help you invest in your future and grow your retirement savings with confidence.
• HEALTHCARE – Excellent health benefits, life insurance options, and supplemental benefit options, giving you the flexibility to choose the coverage that best fits your needs and lifestyle.
• VACATION – Generous PTO time to help you recharge, relax, and maintain a healthy work-life balance.
• PERKS – Team wellness challenges, Costco membership reimbursement, half-day Fridays during summer months + much more!
• WORK-LIFE BALANCE – A flexible work environment that supports a healthy work-life balance, whether you’re in the office, working remotely, or somewhere in between.
• PAID PARENTAL LEAVE – Four weeks of fully paid parental leave to give you time to bond with your new addition and support your growing family.
• TUITION REIMBURSEMENT – Advance your education with support! We offer tuition reimbursement to support your learning journey.

Summary of 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. The AI Platform Engineer, will be 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. High-level architecture is owned by the Director of Digital Transformation; this role advises on design, implements it, and tests it rigorously. They will be expected to build integration services against enterprise APIs, implement per-user authorization so AI tools respect the permissions already defined in each source system, establish the auditing and benchmarking practices that keep AI-generated answers trustworthy, and support AI-enabled features in the team’s internal applications.

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

Qualifications

We’re looking for talented professionals who are eager to grow their skills and contribute to high-quality, meaningful work. If you’re driven, collaborative, and ready to take the next step in your career, we want to hear from you. The following qualifications will help you succeed in this role:

• Bachelors 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
• 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

Work Location

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.

*Candidates outside this area will not be considered.

Company Overview

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, and many of the world’s most notable brands count on Core States Group to deliver speed to market, cost certainty, and compelling design.

With 24 offices across the United States and Canada, Core States Group is an industry powerhouse that drives innovation and improves everyday life for countless people across several markets, including Community, Convenience, Distributed Generation, Financial, Grocery, Housing, Industrial, Restaurants, Retail, Semiconductor, Tribal, Zero-Emission Vehicle (ZEV) Infrastructure, and more. Visit us at www.core-states.com .

A Note to Candidates

Please do not be concerned if you do not meet every requirement. At Core States we are dedicated to building a diverse and inclusive workplace, so if you are excited about this role but your experience does not align perfectly with every qualification in the job description, we encourage you to apply anyway. You may be just the right candidate for this or other roles.

This position will remain open until it is filled.