The Integrated Engineering Advantage
RapidSolutions — Custom Engineering on Demand
AI-accelerated custom development. Templates + consulting + bespoke builds.
When off-the-shelf software does not fit your process, we build what does — in weeks, not quarters.
The Problem
Every industrial company has custom needs that don't fit any off-the-shelf product. A specific dashboard. A bespoke integration. A custom API. A full web or desktop app that reflects how your business actually works. Your internal team is maxed out. Enterprise dev shops quote 12-month timelines starting at $500K. Offshore body shops come in cheap and ship garbage that nobody can maintain.
The Solution
RapidSolutions is the custom-engineering arm of RAIISS. Every project starts with our battle-tested templates — Angular frontends, .NET APIs, WPF desktop apps, PLC libraries — so you skip the first 70% of scaffolding and go straight to the custom logic that makes your business unique. AI-accelerated development workflows compress months of work into weeks. And because it's the same integrated engineering team that builds DomainRAG and PlantPulse, there's no translation gap between your custom build and the rest of your stack.
Engagement Models
Four ways to buy. Start where you need to start — graduate to another model anytime.
Fixed-Price Projects
$15K – $150K
Scoped delivery in weeks
Scoped work with clear deliverables, agreed pricing, and a delivery date. Change orders kept to a minimum by tight scoping up front.
Custom APIs, single-purpose dashboards, integration builds, specific workflow applications.
- Kickoff discovery and written spec
- Fixed-price proposal before work begins
- Delivered end-to-end on our templates
- Source code handed over on completion
- 30-day warranty on defects
Retainer / Fractional Engineering
$8K – $35K / month
Monthly, 90-day initial commitment
Rent a senior engineering team by the month. Great for ongoing development, incremental feature work, or fractional CTO/architect support.
Companies that need consistent senior engineering bandwidth without the overhead of a full-time hire.
- Part-time retainer: 40-60 hours/month
- Full-time fractional: 120-160 hours/month
- Dedicated Slack / Teams channel
- Weekly sync + monthly roadmap review
- Month-to-month after the initial 90 days
Consulting by the Hour
$200 – $350 / hour
Ad-hoc, block, or retainer pre-paid
Senior architecture consulting billed hourly. Architecture reviews, technical due diligence, urgent troubleshooting, pair-programming sessions.
Leadership teams needing an independent senior voice, or teams stuck on a specific technical problem.
- Architecture and code reviews
- Technical due diligence for M&A or funding
- Pair-programming / embedded support
- Post-mortem and incident analysis
- Pre-pay for block discounts (40+ hours)
Template Licensing + Customization
$5K – $25K template + hourly custom
One-time license + optional hourly
License our proven templates outright — Angular front ends, .NET API scaffolds, WPF apps — and optionally pair with consulting hours to customize them to your needs.
Teams that have their own engineers but want a massive head start on proven architecture.
- Perpetual license on the template code
- Documentation and onboarding session
- Optional customization hours billed separately
- Optional ongoing support retainer
- Seamless path to managed service if preferred
Templates You Can License
Proven scaffolding that starts your project 70% built. License the template outright and customize yourself, or pair it with our consulting hours for a faster build.
.NET API Template
.NET 11 · C# · EF Core · Azure SQL
Production-ready C# API scaffold with BaseController generics, EF Core, Azure SQL, and Microsoft Identity.
From $5K
Angular Frontend Template
Angular 20 · NgRx · Material · TypeScript
Angular with NgRx state management, Material Design, responsive layouts, and auth wired out of the box.
From $8K
AutoAutomate (WPF) Template
WPF · MVVM · .NET 10 · SQL · Identity
Full WPF MVVM framework with database, API, offline mode, Material Design, and role-based security.
From $15K
PLC Integration Template
TwinCAT 3 · IEC 61131-3 · ADS · WPF
TwinCAT 3 integration library with ADS bridging, reusable IEC 61131-3 modules, and WPF bindings.
From $12K
Integration Bundle
REST · SOAP · OPC UA · Modbus · SQL
ERP/MES connectors (SAP, Oracle, Dynamics), historian adapters, and data-sync primitives.
From $10K
AI Integration Starter
Azure OpenAI · Azure AI Search · .NET
Azure OpenAI integration scaffold with RAG pipeline, chunking, embeddings, and citation-ready output.
From $10K
What We Build
If it runs on .NET, Angular, WPF, Azure, or a PLC — we build it. If it integrates two systems that don't want to talk — we bridge them. If it needs AI — we wire it in.
Full-Stack Custom Builds
Angular / React frontends, .NET APIs, WPF desktop apps, mobile-responsive dashboards — built on templates and accelerated by AI workflows.
Integration Work
ERP (SAP / Oracle / Dynamics), MES, historians, SCADA, CRM (Salesforce / HubSpot), accounting (QuickBooks / NetSuite), custom APIs.
PLC & Automation Code
Custom TwinCAT 3 logic, IEC 61131-3 function blocks, ADS bridging to modern apps, Modbus/serial device integration.
Cloud Architecture
Azure-first deployments — App Service, Static Web Apps, Functions, AI Search, Blob Storage, SQL. CI/CD via GitHub Actions.
AI Feature Development
Azure OpenAI integrations, custom RAG pipelines, vector search, LLM orchestration, deterministic AI with source citations.
Reports & Dashboards
Power BI embeds, custom dashboards, real-time charts, printable reports, scheduled email digests, SPC visualizations.
Ideal For
- Mid-to-large industrial, food, flavor, or specialty chemical companies
- Internal teams maxed out and needing bandwidth relief
- Leadership tired of Accenture/Deloitte quoting 12-month timelines at $500K+
- Companies that want to own the code they pay for (no black-box vendor lock-in)
- Teams that need a fractional CTO / senior architect without the full-time cost
- Anyone with a "no off-the-shelf product fits us" problem
Have a build in mind?
30 minutes on a call. Bring the problem, the constraints, and the rough timeline. We'll tell you whether a fixed-price project, a retainer, or a template license is the right shape — before we quote a number.