# Custom Software Development, APIs & Integrations | Ann Arbor, MI | Reed Dynamic

> Custom programming from Ann Arbor, Michigan: REST and GraphQL APIs, ERP and WMS middleware, custom backend systems, eCommerce customization, and workflow automation. 85% fewer fulfillment errors in one recent integration.

**Keywords:** custom software development, custom programming, API development, API integration, ERP integration, WMS integration, backend development, custom programming Ann Arbor, Michigan software developers, workflow automation

**Source:** https://reeddynamic.com/services/custom-software/

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APIs · ERP & WMS middleware · Backend systems · Automation

# Custom software and integrations that erase manual steps.

Build powerful applications, APIs, and scalable backend systems with Reed Dynamic — based in Ann Arbor and serving businesses nationwide. If your team is copying data between systems, exporting CSVs, or fixing order errors by hand, that's a project.

[Start your custom project](https://reeddynamic.com/contact/) · [See integration case studies](https://reeddynamic.com/work/)

![Custom software and API programming illustration]

**Reed Dynamic's custom programming services** cover API development, ERP/WMS/CRM integrations, custom backend systems, database architecture, eCommerce customization, and workflow automation — delivered by a US-based, founder-led team in Michigan.

## Our custom programming services

### API development & integration

Flexible, secure REST and GraphQL APIs that connect apps and systems across your tech stack — with auth, rate limits, versioning, and webhooks done right. Read our [API-first strategy guide](https://reeddynamic.com/blog/api-first-development-strategy-for-modern-businesses/).

- OpenAPI
- OAuth2 / JWT
- Webhooks

### ERP & WMS middleware

NetSuite, Acumatica, SAP Business One, Epicor Prophet 21, Dynamics, and custom ERPs. Middleware that keeps stock, orders, invoices, and customers in sync with your storefront and warehouse.

- NetSuite
- Epicor P21
- Custom WMS

### Custom backend systems

Scalable backend architectures that power web portals, mobile apps, dealer portals, and internal tools — designed around the source of truth for each field.

- Node / TypeScript
- PHP 8
- PostgreSQL / MySQL

### eCommerce customization

Advanced Magento, Shopify, and WooCommerce development to tailor your store's functionality, checkout, pricing, and integrations.

- Magento 2
- Shopify
- WooCommerce

### Workflow automation

Order routing, fraud checks, PIM syncs, report generation, ticket dispatch. If it's a spreadsheet a human runs every morning, it can be a job that runs at 3 a.m. — reliably.

- Cron / queues
- Cloudflare Workers
- AWS Lambda

### Cloud & legacy modernization

Move off aging servers, containerize, and adopt managed services without a big-bang rewrite. See our [cloud migration guide](https://reeddynamic.com/blog/cloud-migration-strategies-complete-guide/).

- AWS
- Docker
- Edge computing

## How we approach a new integration

1. ### Map every system
  Everything that touches the data — including the spreadsheets.
2. ### Decide the source of truth
  Per field. This is where most integrations quietly fail.
3. ### Build the pipeline
  Idempotent writes, retries, dead-letter queue.
4. ### Instrument
  You see failures within minutes, not weeks.
5. ### Document
  So the next developer isn't guessing.

## Real outcomes we've shipped

85%

Fewer fulfillment errors

WMS ↔ eCommerce middleware that eliminated manual data entry

70%

Higher intranet adoption

SharePoint modernization to SPFx with Microsoft Graph

45%

Patient engagement lift

HIPAA-compliant patient portal + mobile companion

25%

Conversion lift

Magento 2 replatform with rebuilt integrations

[Read the case studies →](https://reeddynamic.com/work/)

## Our programming process

1. ### Consultation
  We learn your business needs and technical goals to shape the right solution.
2. ### System architecture
  We design scalable, efficient infrastructure to support your applications long-term.
3. ### Development & testing
  We code, test, and refine your custom solution for performance and reliability, with weekly demos.
4. ### Launch & support
  We launch your solution and provide proactive maintenance and enhancements.

## Why choose Reed Dynamic for custom programming?

### Tailored software

Built to match your exact business workflow.

### Scalable architecture

Solutions that grow with your success.

### API expertise

Smart integrations for your ecosystem.

### eCommerce dev

Enhance Magento, Shopify, WooCommerce, or your custom cart.

### U.S.-based team

Trusted developers located in Ann Arbor, Michigan.

### Ongoing support

Long-term partnerships and maintenance available.

## Industries we build solutions for

### Healthcare

Custom HIPAA-compliant portals and patient engagement tools.

### Finance & banking

Secure systems for financial services, transactions, and reporting.

### eCommerce & retail

Advanced cart functionality, customer portals, and custom workflows.

### Manufacturing & logistics

Inventory systems, warehouse automation, EDI, and dealer portals. See [B2B eCommerce tech](https://reeddynamic.com/blog/title-maximize-b2b-ecommerce-tech-for-competitive-edge/).

### Education tech

Custom LMS integrations, learning portals, and reporting dashboards.

### Startups

MVPs, SaaS builds, and custom software that evolves with growth.

## Frequently asked questions about custom software

**

### What kinds of integrations do you build?

**

eCommerce ↔ ERP (NetSuite, Acumatica, SAP B1, Epicor Prophet 21, Dynamics), eCommerce ↔ WMS, CRM sync (HubSpot, Salesforce), payment gateways, shipping (ShipStation, EasyPost), tax (Avalara, TaxJar), EDI, and custom REST/GraphQL APIs between your own systems.

**

### How much does an API or integration project cost?

**

Small point-to-point integrations start around $5,000. Larger middleware or multi-system orchestration typically runs $20,000–$75,000 depending on data volume, error-handling requirements, and how much of the legacy system needs to be reverse-engineered.

**

### How do I know if my business needs custom software?

**

Four signs: your team re-keys data between systems, a spreadsheet has become a mission-critical application, off-the-shelf tools require workarounds that break, or you can't get the reports you need. Read [the 4 signs your business needs custom software](https://reeddynamic.com/blog/what-the-4-signs-are-that-your-business-needs-custom-software/).

**

### Should we build in-house or hire a development company?

**

Hire out when the work is specialized (integrations, mobile), time-boxed, or when internal resources are already committed. Our guide covers [5 indicators it's time to engage a software development company](https://reeddynamic.com/blog/when-internal-resources-fall-short-5-indicators-its-time-to-engage-a-software-development-company/) and a [self-assessment handbook](https://reeddynamic.com/blog/preparing-your-business-for-software-development-outsourcing-a-self-assessment-handbook/).

**

### Which technologies do you use?

**

Node.js and TypeScript, PHP 8 (Laravel, Magento), Python for data jobs, MySQL and PostgreSQL, Redis, AWS (Lambda, EC2, RDS, S3), Cloudflare Workers, and Docker. We pick the stack that your team can maintain, not the trendiest one.

**

### Do you offer ongoing support?

**

Yes. Monthly retainers cover security patching, feature enhancements, on-call for critical integrations, and quarterly roadmap reviews.

**

### Do you sign NDAs and BAAs?

**

Standard for our engagements. NDAs are signed before discovery; BAAs are signed for any project touching PHI before development begins.

## Custom programming across Michigan

Serving these areas and more:

- [Ann Arbor](https://reeddynamic.com/services/custom-software/ann-arbor/)
- [Birmingham](https://reeddynamic.com/services/custom-software/birmingham/)
- [Bloomfield Hills](https://reeddynamic.com/services/custom-software/bloomfield-hills/)
- [Brighton](https://reeddynamic.com/services/custom-software/brighton/)
- [Canton](https://reeddynamic.com/services/custom-software/canton/)
- [Detroit](https://reeddynamic.com/services/custom-software/detroit/)
- [East Lansing](https://reeddynamic.com/services/custom-software/east-lansing/)
- [Farmington Hills](https://reeddynamic.com/services/custom-software/farmington-hills/)
- [Grand Rapids](https://reeddynamic.com/services/custom-software/grand-rapids/)
- [Hartland](https://reeddynamic.com/services/custom-software/hartland/)
- [Howell](https://reeddynamic.com/services/custom-software/howell/)
- [Kalamazoo](https://reeddynamic.com/services/custom-software/kalamazoo/)
- [Lansing](https://reeddynamic.com/services/custom-software/lansing/)
- [Livonia](https://reeddynamic.com/services/custom-software/livonia/)
- [Milford](https://reeddynamic.com/services/custom-software/milford/)
- [Novi](https://reeddynamic.com/services/custom-software/novi/)

## Got a manual process eating your team's time?

Tell us what the spreadsheet does. Odds are we can replace it with an integration that pays for itself in a quarter.

            [Start a project](https://reeddynamic.com/contact/) · [See SharePoint development →](https://reeddynamic.com/services/sharepoint-development/)

Or call [(734) 535-8954](tel:+17345358954) · Mon–Fri 9–5 ET