Custom software development, support and IT services

Custom applications, mobile apps, cloud, CRM, AI and managed IT from a US-based team. And when the developer who built your system is gone, we take it over and keep it running.
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OUR SERVICES

What we do

Custom Software Development

Web and business applications, integrations and modernization of legacy systems on .NET, React, SQL Server and Azure.

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Mobile App Development

iOS and Android apps, native or cross-platform, plus the backends and APIs behind them.

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Support & Maintenance

Monthly retainers for fixes, security patches, upgrades and enhancements, starting at $3,500 per month.

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Cloud Consulting

Cloud migration, hosting, CI/CD and cost optimization, with deep experience in Microsoft Azure.

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CRM & SharePoint

Implementation, customization and integration of SharePoint, Dynamics, Salesforce and custom CRM systems.

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AI & Machine Learning

Practical AI built into the software you already run: document processing, classification, search and assistants.

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Managed IT & IT Service Management

24/7 monitoring, infrastructure administration, help desk and security testing for your environment.

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Code Rescue

We take over software other developers built and left behind, starting with a fixed-price 10-day audit.

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CODE RESCUE

Inherited software nobody understands?

The agency stopped responding. The developer left without a handover. Every change breaks something else, or someone quoted you six figures to rebuild a system that mostly works.

We specialize in taking over software other people built. AI-assisted analysis lets us map dependencies, reconstruct missing documentation and find risks in days rather than weeks, while an experienced engineer makes every judgment call. That is why we can offer a fixed price for the assessment instead of billing discovery by the hour.

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What the Codebase Rescue Audit delivers

$2,500 · 10 business days
  • Architecture and dependency map
  • Ranked security and dependency risk list
  • A working build in our environment
  • Code health assessment and test coverage
  • Prioritized 90-day roadmap with estimates
  • A 60-minute walkthrough call

If we can’t get your application running, you pay nothing

That is the hardest part of inheriting software, and the one thing we will not charge you to fail at. The full $2,500 also credits against your first month if you move to a support retainer within 30 days.

How we work with you

Fixed-scope projects, monthly retainers or fully managed services, depending on what you need.
  • 1
    Talk

    A short call about what you need, what exists today and what success looks like.

  • 2
    Assess and plan

    We review the requirements or the existing system and agree on scope, milestones and cost.

  • 3
    Build or take over

    We deliver in working increments, with regular demos and full visibility into progress.

  • 4
    Support and improve

    Ongoing maintenance, monitoring and enhancements from a team that knows your system.

Technologies we work with

Our core stack is Microsoft-centric, and we regularly support and take over systems built on other platforms.
  • .NET, .NET Framework and C#
  • React and Node
  • SQL Server and Microsoft Azure
  • RabbitMQ and message-based integration
  • PHP, Laravel, Python and Django
  • iOS, Android and React Native
  • SharePoint, Dynamics and Salesforce
  • WordPress and custom plugins
  • AI and large language model integration
  • Legacy systems in most other languages

Who you’ll be working with

A3E Systems is a US-based software development and IT services company, led by a founder with more than 20 years of hands-on software development experience.

Every engagement has a US-based lead who owns the relationship, backed by an engineering team that knows your system. You always know who to call, and you own your code, accounts and documentation from day one.

  • Led by 20+ years of software development experience
  • US-based leadership with support during US business hours
  • Development, support and IT services under one roof
  • You own your code, accounts and documentation

Let’s talk about your software

A new build, an inherited system, ongoing support or IT help: tell us what you need.

Send us a note

Tell us a little about your project and we will get back to you with next steps.