> web apps · integrations · automation

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.

Web appsInternal toolsAI integrationWorkflow automation

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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

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> services

Services Built Around Business Outcomes

I help businesses launch better web software, streamline operations, and connect the systems they already rely on.

Best fit projects

Business web appsClient portalsInternal toolsIntegrations

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 appsclient portalsinternal 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 + Anthropicembedded AI UXpractical 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 automationops efficiencytime-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 + Supabasewebhooks + APIscloud integrations

> selected work

The Kind of Work I Help Build

Practical software projects that improve how a business operates — from internal tools and portals to AI-enhanced workflows and connected systems.

What this section shows

Representative project types and engagement patterns that fit the work I focus on most.

Example Engagement

AI Workflow Automation

Cut manual triage work by 62% and reduced workflow cycle time by 41% by connecting AI-assisted classification, routing, and notifications.

62% less manual work41% faster cyclesn8n + OpenAI + Supabase

Example Engagement

Custom Client Portal

Replaced fragmented email/status updates with a portal that raised on-time client approvals from 58% to 89%.

89% on-time approvals34% fewer support pingsNext.js + Postgres

Example Engagement

Payments + Backend Integration

Unified Stripe checkout, account provisioning, and billing events to reduce onboarding drop-off by 27% and failed provisioning by 71%.

27% lower drop-off71% fewer failed provisionsStripe + webhooks + queues

> about

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

AWS Certified Cloud Practitioner

Amazon Web Services · 2023

Microsoft Azure Fundamentals

Microsoft · 2023

CompTIA Security+

CompTIA · 2023

CompTIA Cloud+

CompTIA · 2023

> process

How I Work

Scope the Right Build

We clarify goals, constraints, and what success looks like so the project is shaped around real business needs — not guesswork.

Design & Develop

I map the architecture, choose the right stack, and build in focused iterations so you can see progress early and often.

Launch & Improve

Once it is live, I help smooth out the rough edges, support the rollout, and improve the product based on real usage.

> ready?

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.

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