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Mid-Chain Technologies

140+ Projects Delivered

Custom platforms & AI systems, engineered to ship

Real Engineering. Not Vibe-Coded.

For pre-seed to $50K MRR founders and operators — marketplaces, ops platforms, AI agents, and RAG systems. Transparent pricing. Milestone-by-milestone, so you watch it get built.

5.0 · 49+ Reviews · Serving Founders Globally

  • Engineered, not vibe-coded
  • Transparent pricing
  • Milestone-by-milestone

Free consultation · No obligation

Marketplace platform with listings, bookings, payments, and reviews
  • 12 platforms shipped
  • 100% on-time delivery
  • $2M+ client capital raised
Marketplace product work at Mid-Chain Technologies

/ Who we are

Engineering partners for founders who need to ship.

We build engineered platforms and AI systems — marketplaces, ops tools, and automation — with transparent pricing and milestone delivery. You watch it land week by week, not in a big-bang demo.

/ Services

What can we build for you?

01Platform Engineering

Custom Platform & Marketplace Engineering

The core system underneath your product — roles, listing and discovery flows, booking or ordering logic, and the workflows that make a two-sided marketplace or an operations-heavy platform actually run.

  • Multi-role user system
  • Listing/booking/search flows
  • Transaction & workflow state management
Details
02Platform Engineering

Mobile Companion Apps

Native or React Native apps for your platform, so users can transact and operate from their phones, not just a browser tab.

  • iOS & Android (React Native)
  • Push notifications
  • Offline-capable core flows
Details
03AI Systems

AI Agents & Workflow Automation

Automation that does the work, not just suggests it — agentic workflows that carry a multi-step business process through to completion, wired into the tools you already run on.

  • Multi-step agentic workflows
  • Tool & API integrations
  • Human-in-the-loop review points
Details
04Platform Engineering

Payments, Escrow & Financial Operations

Money moving safely through your platform — split payments, payouts, and escrow logic so funds release only when a transaction actually completes, whatever the business model.

  • Stripe Connect integration
  • Split payments & payouts
  • Escrow / hold-and-release logic
Details
05Platform Engineering

Admin, Ops & Multi-Role Dashboards

Full visibility and control over your platform, with role-based access that scales — every user, transaction, and permission in one place, so founders, ops, and support each see exactly what they need.

  • User & transaction management
  • Granular role-based permissions
  • Dispute resolution tools
Details
06AI Systems

AI Search, Matching & RAG Systems

Smarter retrieval and connections — recommendation and search-ranking for marketplaces, and retrieval-augmented (RAG) knowledge tools for businesses that need to search or chat with their own data.

  • Recommendation engines
  • Semantic/AI-powered search
  • Retrieval-augmented (RAG) knowledge tools
Details
07Support

Post-Launch Iteration & Support

What happens after launch — ongoing iteration, fixes, and new features on a retainer, so your platform keeps improving instead of freezing the day it ships.

  • Monthly iteration retainer
  • Bug fixes & monitoring
  • Incremental feature delivery
Details

/ Client reviews

Trusted by our clients.

The travelling app needed supply, demand, and payments in the first version - not a pretty shell. We launched with real trips booking, and I watched every milestone instead of waiting for a big-bang demo.

Benjamin

Owner, travelling app · Belgium

Hospitality is messy - calendars, inventory, last-minute changes. They shipped a platform my hosts and guests both use, with bookings I can trust instead of a spreadsheet and WhatsApp.

Jesus Villadoniga

Owner, hospitality marketplace · Spain

I had the two sides of the marketplace mapped in my head and nothing users could actually transact on. Eight weeks later both sides were live, listings were converting, and money was moving.

Ilia

Owner, multisided marketplace · Bulgaria

/ Why choose us

Why founders choose us

01

Real functionality from day one

Core roles, workflows, and the transaction or automation that has to work — not a brochure site with the real product promised later.

02

Fixed price and locked scope

You know the number before we start. Scope is locked in week one so the delivery window is a plan, not a hope.

03

You watch it get built

Milestone-by-milestone demos. If something is going to blow the timeline, it shows up early — while you can still cut or defer it.

04

Built to take real usage

Auth, data, and admin are production-grade from week one. The first version is built to take real users, not get rewritten the month you grow.

/ How it works

From idea to launch

A clear path from idea to launch. You see working software every week — not a black-box build that appears on launch day.

01

Discovery

We map how your business actually operates — the roles, the data, and the workflow or transaction that has to work on day one.

02

Planning

Week one locks scope, roles, and the core flows. Everything else is a later milestone, not a silent extra.

03

Product design

Flows for each role: onboarding, discovery, checkout, and the admin you’ll actually use to run the platform.

04

Development

Weekly builds you can click. Core features, integrations, and ops land in public milestones — not a big-bang demo.

05

Testing

We test the paths that matter most — payments, core workflows, and the edge cases ops will hit in week one live.

06

Launch & support

Go-live with the same engineers. Launch is the start of the relationship, not a handoff to a new team.

/ Industries

Software built for how you operate.

Custom platforms and AI systems across booking, logistics, real estate, and services — the same engineering approach, fitted to how your business actually operates.

Real Estate
Logistics & Delivery
Booking & Services
Healthcare
Financial Services
Hospitality
E-Commerce
Professional Services
Education
Startups
Two-Sided Marketplaces
Other Industries

/ FAQ

Frequently asked questions

Have a question not covered here? Get in touch.

Every project is different. Pricing depends on features, complexity, platforms, integrations, and design requirements. After we lock scope, we quote a fixed price for your platform — so you know the number before development starts. Get a project estimate.