How I Can Help
I'm Doug Rosenberg, a Chicago-based full-stack .NET developer. I build custom websites and web apps for small businesses, and do ERP and business-systems consulting for larger organizations. Custom web projects typically run $750–$3,000, consulting $100–$175 an hour, and ongoing support $300–$800 a month. Every engagement starts with a free discovery call.
What I Offer
Custom Web & App Development
Design-led websites and web applications that convert — from marketing sites to full custom internal tools. Built with Blazor, Angular, or Astro depending on what the project actually calls for.
- Marketing sites & landing pages
- Custom web applications
- UI/UX design in Figma before a line of code
- Responsive, accessible builds
ERP & Business Systems Consulting
Full-stack development and integration work for organizations running on complex systems — data pipelines, CRM/ERP sync, secure internal tools, and the reporting people actually rely on.
- ERP/CRM integrations (Salesforce, custom systems)
- Secure data pipelines & dev environments
- Custom reporting & admin tooling
- CI/CD pipeline setup
AI-Assisted Development & Modernization
Bringing AI-assisted workflows into existing codebases — faster iteration, better documentation, safer refactors — without sacrificing code quality or understanding of what's actually being shipped.
- Legacy codebase modernization
- AI-assisted development workflow setup
- Code review & technical audits
- Documentation & knowledge transfer
Ongoing Support & Maintenance
Keeping your systems updated, patched, and running smoothly — so you're not firefighting when something breaks.
- Regular updates & security patches
- Bug fixes & small enhancements
- Uptime & performance monitoring
- Direct access, no ticket queue
Looking for something specific? See web design for Chicago small businesses or websites for musicians and bands.
Common Questions
What does it cost to hire you for a web development project?
It depends on the type of engagement. Custom web/app development projects typically run $750–$3,000, priced per project after scoping. ERP and business systems consulting runs $125–$175/hr. AI-assisted development and codebase modernization runs $100–$150/hr. Ongoing support and maintenance is a $300–$800/month retainer.
How does an engagement actually start?
With a free discovery call to scope what you actually need. From there it's priced project-based, hourly, or as a monthly retainer, whichever fits the work — not a fixed package pushed onto every client.
What kind of projects do you take on?
Design-led marketing sites and custom web applications (built in Blazor, Angular, or Astro depending on what the project calls for), ERP/CRM integrations and secure data pipelines, AI-assisted legacy codebase modernization, and ongoing maintenance for systems already in production.
Do you offer support after a project ships?
Yes — ongoing support and maintenance is available as a monthly retainer, covering regular updates and security patches, bug fixes and small enhancements, and uptime/performance monitoring, with direct access rather than a ticket queue.
Every engagement is scoped individually — reach out and let's talk about what you need.