Platform Engineer Jobs in Pennsylvania

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.

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  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.

• 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

• 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