Custom Web Development for Modern Businesses
I build modern web apps, internal tools, and custom integrations — with AI and automation layered in where they create real business value.
Trust signals from real delivery work
5.0/5 average rating
Client feedback
10 launches in 12 months
Recent delivery pace
<24h average response
Support performance
70% returning clients
Repeat engagements
Services Built Around Business Outcomes
I help businesses launch better web software, streamline operations, and connect the systems they already rely on.
Best fit: business web apps, client portals, internal tools, and integrations.
Build Custom Web Apps
Create modern web applications, client portals, dashboards, and internal tools that are tailored to how your business actually works.
Typical deliverables
- Next.js apps
- client portals
- internal tools
Add AI Where It Actually Helps
Add chat, generation, smart search, summarization, and AI-assisted workflows to your product without turning the whole project into an AI experiment.
Typical deliverables
- OpenAI + Anthropic
- embedded AI UX
- practical AI features
Automate Repetitive Work
Replace manual admin, copy-paste tasks, and fragile multi-step processes with workflows that save time, reduce errors, and scale better.
Typical deliverables
- workflow automation
- ops efficiency
- time-saving systems
Connect Your Systems End-to-End
Tie together APIs, payments, databases, and cloud tools so your stack works like one system instead of a patchwork.
Typical deliverables
- Stripe + Supabase
- webhooks + APIs
- cloud integrations
Systems I Have Built
Practical software projects that improve how a business operates — from internal tools and portals to AI-enhanced workflows and connected systems.
Real client projects, in production today. See the full list on the Work page.
Client project
AIPatiently
A subscription app where children scan a QR poster in a clinic waiting room and get a personalized AI-generated video, built on a Supabase job pipeline with batch polling and retries.
- Healthcare
- Supabase + Stripe
- Live
Client project
Brilliant Base: Legal CRM
A multi-user CRM for law firms that cut case management time by more than 50% across multiple firms.
- 50%+ less case admin
- Role-based access
- Live
Client project
Meals on Wheels Platform
Volunteer scheduling, route planning, and delivery tracking in one operations system for a nonprofit.
- Route planning
- Volunteer scheduling
- Live
About Me
I'm Isaiah Klosterman — a full-stack web developer based in South Dakota with a background in cloud computing and systems administration.
I build modern web applications, client portals, dashboards, and internal tools with the kind of systems thinking that keeps them reliable, scalable, and maintainable.
When AI, automation, or deeper integrations can make the product better, I bring those in deliberately — but the foundation is always strong web software built to solve real business problems.
Credentials
Certified Bubble Developer
Bubble
AWS Certified Cloud Practitioner
Amazon Web Services · 2023
Microsoft Azure Fundamentals
Microsoft · 2023
CompTIA Security+
CompTIA · 2023
CompTIA Cloud+
CompTIA · 2023
How I Work
- 01
Scope the Right Build
We clarify goals, constraints, and what success looks like so the project is shaped around real business needs — not guesswork.
- 02
Design & Develop
I map the architecture, choose the right stack, and build in focused iterations so you can see progress early and often.
- 03
Launch & Improve
Once it is live, I help smooth out the rough edges, support the rollout, and improve the product based on real usage.
Need Better Web Software?
If you're building a web app, internal tool, portal, or integration-heavy product, let's map out the right path and make it real.