AI-assisted RFP creation
Guided project definition and structured request-for-proposal workflows.
BUSINESS APPLICATION DEVELOPMENT
I build software
that makes business
work better.
I'm Bill Unger, a senior application developer focused on custom PHP systems, business workflows, integrations, and dependable enterprise software.
Project workspace Active
Projects24
Proposals86
Workflows12
Application workflow
Request → RFP → Proposal → Review
✦
Complex workflows.Thoughtfully simplified.
Illustrative interface, not a live application screenshot
01 / FEATURED WORK
Built for real-world
business complexity.
From initial architecture to the details that keep production software running.
FEATURED APPLICATION · 2025–PRESENT
The Cyber Exchange
A custom-built cybersecurity services marketplace.
Architected and developed the application powering a commercial marketplace that connects organizations seeking cybersecurity services with qualified providers. Built on WordPress as an application framework, with substantial custom PHP business logic and purpose-built workflows.
Custom PHPWordPress PluginsMySQLAJAX & RESTAI Integration
Visit the application ↗Most application functionality requires login. The diagram illustrates its architecture rather than showing a live screen.
THE CYBER EXCHANGE APPLICATION ARCHITECTURE
Requester portalProject intake · RFP creation
↓
Custom PHP application layerWorkflows · Permissions · AI · Integrations
↙ ↘
Provider portalBids · Proposals
Project operationsReview · SOW · Invoicing
Simplified conceptual architecture
Provider matching
Skills and classification-driven discovery of qualified providers.
Proposal evaluation
Evaluation rubrics, structured reviews, and AI-assisted analysis.
End-to-end workflows
Approvals, statements of work, invoicing, access control, and notifications.
02 / EXPERTISE
More than code.
Complete solutions.
Technology should support the way a business actually operates.
⌘
Custom business applications
Practical tools for teams, customers, vendors, and operations—not just brochure websites.
⇄
Systems & integrations
APIs, data exchange, reporting, automation, and connecting existing platforms.
◇
Application modernization
Understanding established systems, preserving business rules, and improving them safely.
✳
AI-enabled workflows
Applying AI to real business processes with human review and control.
03 / BACKGROUND
Decades of solving
business problems.
Experience across financial services, operations, ERP, and custom applications.
50+
Years working with business systems, from character-based enterprise applications to modern web platforms.
2025 – PresentThe Cyber ExchangeLead Application Developer · Custom PHP and application architecture
2023 – 2026Hanger, Inc.Software Engineer · ERP migration, reporting, data transformation
2018 – 2023Rocket MortgageSoftware Engineer · Enterprise business rules and integrations
1994 – 2016CompuCom SystemsSenior Programmer Analyst · Enterprise financial applications
Additional experience includes Progress OpenEdge / ABL, ERP integrations, accounting and operational systems, and production support.
04 / LET'S TALK
Have a business problem
that needs solving?
Interested in custom PHP development, maintaining business applications, or modernizing an established system? I'd welcome a conversation.
Let's connect.
Open to conversations about remote development positions and contract projects.
Contact email, LinkedIn profile, and downloadable resumes will be added before public launch.