Illinois Valley · Principal Software Engineering
Principal software engineering
for the Illinois Valley.
Custom software, mobile apps, SaaS platforms, and AI integration, engineered for businesses in LaSalle, Peru, Mendota, Ottawa, Spring Valley, and across the region. Led by a principal engineer with a long history in the Illinois Valley and an active member of the Illinois Valley Area Chamber of Commerce. A principal-led team. No junior developers, no offshore handoffs, no agency markup.
A third option for Illinois Valley businesses
Most regional businesses end up choosing between two bad options when they need software built. Option one: a Chicago agency that bills like a law firm, hands the work to a junior team, and treats LaSalle and Mendota like flyover country. Option two: an overseas freelancer who is cheap until the bug count, the time-zone gap, and the ghosting catch up. There is also the local web and marketing shop, right for a brochure site or an ad campaign, but not built for the work when your business actually runs on software. Champlin Enterprises is the fourth option: a principal-led team that picks up the phone, drives to your office, and builds it with you.
What we build for Illinois Valley businesses
Manufacturing line software and warehouse tooling. Dealership and field-service mobile apps. Agricultural and supply-chain platforms. Regional banking, insurance, and healthcare workflows. Internal operations tools that finally replace the spreadsheet that has been holding the business together for ten years. When a tool turns out to have product potential, the architecture is built so it can be spun out as a SaaS without a rewrite, that is the difference between an engineer who has built one app and one who has built many.
Why principal engineering matters more here
In the Illinois Valley, you are not competing with the shop down the street, you are competing with national online players, large regional chains, and well-capitalized acquirers. Software is the force multiplier that lets a 40-person regional business out-execute a 400-person competitor. You do not need a Silicon Valley engineering org. You need a principal-led team with 28 years of production experience and gets the architecture right the first time.
Real ties to the region — not a marketing claim
Kevin Champlin has been engineering software for Illinois Valley businesses since the 1990s — operating an office in LaSalle for years, serving manufacturers, distributors, and regional businesses across LaSalle, Peru, Mendota, and Ottawa, and remaining a current member of the Illinois Valley Area Chamber of Commerce. The relationships, the regional operating context, and the willingness to drive Route 251 for a working session are real and ongoing. This is not a firm that put a flag pin on a map.
Beyond LaSalle, Peru, and Mendota
The same engagement model serves Ottawa, Spring Valley, Princeton, Streator, Sandwich, Dixon, DeKalb, and the rest of north-central Illinois. Remote-first when remote works. On-site when on-site matters. Always a principal-led team accountable for the outcome.
What you get
What this looks like in practice
Custom internal software
Warehouse, manufacturing, dealership, and operations tooling that replaces the spreadsheet — built to the way your business actually runs.
Mobile apps for field teams
iOS and Android from one Kotlin Multiplatform codebase. Route sales, field service, inspections, dispatch — wherever your team is offline and on the move.
SaaS platforms and product spinouts
When an internal tool deserves to be a product. Multi-tenant architecture, billing, auth, and the boring SaaS plumbing — designed so you can charge for it.
AI integration in production
Document processing, customer support, lead qualification, intake automation — the AI work that actually moves a regional P&L, not the demo that dies on staging.
Proof of work
Products we’ve built
Every product below was built by our principal-led team, designed, architected, and launched without a PM layer or an agency markup.
Trusted by
FAQ
Frequently asked questions
What kind of Illinois Valley businesses do you typically work with?
Manufacturers, distributors, dealerships, regional banks and insurers, agricultural operations, healthcare practices, and family-owned operating companies across LaSalle, Peru, Mendota, Ottawa, Spring Valley, and the surrounding region. The common thread is a regional business that needs better software to run — not a startup pitching VCs.
Do you work on-site with clients in LaSalle, Peru, or Mendota?
Yes — and the relationship to the region goes back further than this entity. Kevin Champlin operated an office in LaSalle for years, remains a current member of the Illinois Valley Area Chamber of Commerce, and is willing to drive Route 251 for a working session. On-site visits, walkthroughs, and discovery sessions across the Illinois Valley are part of how we work — not a checkbox on a sales deck.
Our IT team is small. Can you work alongside a solo IT person or external MSP?
That is the most common engagement shape in the Illinois Valley. We come in as the principal engineering layer that your IT person or MSP does not have in-house. Your team keeps running operations; we build the software they would otherwise have to outsource overseas or wait years for.
What if our project needs both software and a mobile app — or might become a SaaS product?
Custom software, mobile, web portals, and SaaS architectures are all delivered under one engagement. The same principal-led team that designs the system builds the iOS, Android, and backend code. You do not coordinate three vendors. If an internal tool eventually has product potential, the architecture is built to support spinning it out without a rewrite.
How does pricing compare to a Chicago agency?
You are paying for principal engineering output, not a layered agency org chart. Custom engagements start at $10,000, the productized AI Sprint is a flat $25,000, and build engagements scale with the problem. No discovery decks, no agency markup, no junior bench learning on your dollar.
How does this compare to hiring a local web or marketing agency?
A web agency builds your site and manages your ads. A web and software agency builds the systems your business runs on — internal tools, mobile apps, SaaS platforms, AI integrations, customer portals. If you need a brochure site refreshed, a web agency is the right call. If you need software that gives your team a structural advantage, that is a different discipline entirely.
How does this compare to hiring an offshore freelancer or overseas dev shop?
A principal US-based engineer who shows up, owns the architecture, communicates in your time zone, and stands behind the work for the long run. Overseas freelancers are cheaper per hour and far more expensive per outcome — we have rebuilt enough of those projects to know the math.
What technology stacks do you build on?
Laravel, Next.js, Node, TypeScript, PHP, Python, Kotlin Multiplatform for mobile (one codebase, iOS + Android), and managed Postgres or MySQL on AWS, Vercel, or a hardened Plesk-managed server. Stack decisions are made for the business, not the resume.
Nearby & related
Illinois Valley
Enterprise engineering,
Illinois Valley roots.
Who you work with
Kevin Champlin
Founder & Principal Engineer
28 years in production software, from enterprise systems to the SaaS products above. Kevin leads every engagement with our AI engineering team, and the people who scope your project are the ones who build it and pick up the phone after launch. No offshore handoffs. No bait-and-switch.
A softer step
Not sure if you even need this kind of work?
Most businesses don't need a custom build. They need a clear look at where AI would actually pay off first. That's what the Free AI Opportunity Audit is: tell us about your operation and an AI agent we engineered reads your website and emails you, in about two minutes, three concrete places AI quietly pays for itself, a 90-day plan for the first one, and a website health grade. No call needed and no follow-up sales sequence. The audit is yours whether or not we ever work together.
Principal engineering, in the Illinois Valley.
If you operate a business in LaSalle, Peru, Mendota, Ottawa, Spring Valley, or anywhere in the region — and you have been priced out of agencies or burned by freelancers — start with a 30-minute conversation.
Tell us what you are building and we will set up the 30-minute conversation. No pitch deck.
Every site we build is built to WCAG 2.2 AA accessibility standards.