Custom Software

Custom Software Development for Businesses in Springfield, IL & Nationwide

King Technology designs and develops custom web applications, mobile apps, cloud software, and business system integrations. Based in Springfield, Illinois, we help organizations build secure, scalable software tailored to their workflows.

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AWS • Azure • GCP
Security by design
Developers collaborating on product design
50+
Projects delivered
99.9%
Uptime targets
API‑first
Future‑proof design
A+
Client satisfaction

Custom Business Software Built Around Your Workflow

From Springfield, Illinois to organizations across the United States, King Technology works with businesses seeking tailored applications, modernization of existing systems, and integrations between the tools they already use. Explore our web development services, managed IT support, or contact our team to discuss a project.

Capabilities tailored to your roadmap

We architect, build, and support across the full stack.

Web Applications

Responsive, accessible apps with modern front‑ends and scalable back‑ends.

  • React / Vue / Tailwind
  • Go, Node, Python, PHP, .NET
  • Postgres • MySQL • SQL Server

Mobile & Cross‑Platform

Flutter and React Native for iOS/Android with shared codebases.

  • Offline‑first UX
  • Push notifications
  • App Store & Play deploy

APIs & Integrations

REST/GraphQL services, webhooks, and deep integrations with third parties.

  • Auth (SSO/OAuth/JWT)
  • Payments, maps, comms
  • ETL & data pipelines

Cloud & DevOps

Infra‑as‑code, CI/CD, containers, and observability to ship confidently.

  • Docker & Kubernetes
  • GitHub Actions / GitLab CI
  • Monitoring & alerts

Data & Analytics

Dashboards, reporting, and pipelines to make decisions with confidence.

  • Warehouse & BI
  • Exports (CSV/Excel/PDF)
  • Role‑based access

AI/ML & Automation

Prototypes to production—computer vision, NLP, and workflow automation.

  • Python + OpenCV/NLP
  • Model serving & eval
  • Automation playbooks

A clear, reliable delivery process

Transparent milestones with weekly demos and measurable outcomes.

1) Discover & Align

Workshops, user journeys, and success metrics to define the right scope.

2) Design & Prototype

Interactive wireframes, UI kit, and clickable prototypes for early feedback.

3) Build Iteratively

Two‑week sprints, peer reviews, and CI/CD for rapid, safe releases.

4) QA & Security

Automated tests, accessibility checks, and security hardening.

5) Deploy & Train

Blue‑green deploys, documentation, and team training.

6) Support & Evolve

SLA support, roadmap planning, and continuous improvement.

Engagement Models

Fixed Scope

Clear deliverables and timelines for well‑defined projects.

Specs & milestones Flat pricing
Time & Materials

Flexible scope with transparent weekly reporting.

Weekly sprints Monthly invoicing
Dedicated Team

Long‑term velocity with managed engineers.

Capacity planning vCIO/CTO guidance
Request a Proposal

Languages

GoPythonNode.jsPHP.NETJava

Frontend

ReactVueTailwindBootstrap

Data

PostgreSQLMySQLSQL ServerMongoDB

Cloud & DevOps

AWSAzureGCPDockerKubernetes

Recent Work Highlights

Selected builds that showcase our approach and results.

Resident portal app

Resident Connect

Web + mobile portal for service requests, payments, and announcements.

FlutterNodeStripe
E‑commerce dashboard

E‑commerce Platform

Headless storefront with admin analytics and inventory sync.

ReactGoPostgres
Discuss Your Project

Got requirements ready?

Send us your spec, mockups, or even a rough idea—we'll outline a build plan with milestones and estimates.

Share Docs Start a Project
We can help with
  • MVPs & prototypes
  • Legacy rewrites
  • Platform migration

FAQ

Quick answers about timelines, pricing, and delivery.

How long does a typical project take?

MVPs often ship in 4–8 weeks; larger platforms vary by scope. We propose milestones with dates in the SOW.

How do you estimate pricing?

We align scope first, then provide fixed or T&M estimates. You'll see breakdowns by feature and effort.

Can you integrate with our systems?

Yes—ERPs, CRMs, payments, communications, and custom APIs. We'll design adapters and sync jobs as needed.

Do you provide support after launch?

We offer SLAs with response targets, monitoring, and a roadmap for iterative improvements.

Tell us about your project

Share a few details and we'll follow up with a plan.

Or email info@kingtech.net

Visit or call us

  • 3 N Old State Capitol Plaza, Springfield, IL 62701
  • (217) 522‑6700
  • info@kingtech.net
Downtown Springfield