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Services

Technical software, built to ship and to last.

Cold Ledger takes on the work most studios avoid: real AI, multi-tenant architecture, and domain-heavy tools that have to work in production. One senior engineer, accountable end to end — from first architecture decision to the software your users depend on.

01

Custom SaaS & Multi-tenant Platforms

The problem · Off-the-shelf tools don't fit how your business actually works, and bolting tenancy, billing, and access control onto a prototype later is expensive and risky.

What you get · A production SaaS platform with tenant isolation, roles and permissions, and admin tooling designed in from the start — built to onboard new customers without re-architecting.

Typical deliverables

  • Multi-tenant architecture
  • Role-based access control
  • Admin & billing foundations
  • Scalable data model

02

AI-Powered Applications & RAG Systems

The problem · Generic AI features hallucinate, cite nothing, and erode trust. Users need answers grounded in your data — not a chatbot bolted on for show.

What you get · Retrieval-augmented systems that answer from your own documents and data, with hybrid search and source citations so every answer is verifiable and useful.

Typical deliverables

  • Hybrid RAG (keyword + vector)
  • Grounded answers with citations
  • Embeddings & re-ranking
  • Evaluation & guardrails

03

Technical & Domain-Specific Tools

The problem · Specialised fields carry deep knowledge in the heads of a few experts and in documents no one can search — and most agencies won't touch that complexity.

What you get · Software that encodes real domain logic: diagnostics, alarm and fault databases, guided troubleshooting, and reference tools built for the people who actually do the work.

Typical deliverables

  • Diagnostic & troubleshooting flows
  • Structured reference databases
  • Domain-specific interfaces
  • Field-ready UX

04

Full-stack Web Application Development

The problem · Handing frontend, backend, data, and infrastructure to different vendors creates gaps, finger-pointing, and software that never quite ships.

What you get · End-to-end delivery from one accountable engineer — architecture through production — with a modern, fast, maintainable stack you're not locked out of.

Typical deliverables

  • Next.js / TypeScript frontends
  • APIs & backend services
  • Database design
  • Deployment & observability

05

Document Intelligence & Knowledge Systems

The problem · Critical information sits trapped in PDFs, scans, and manuals — impossible to search, easy to lose, and slow to use when it matters.

What you get · An ingestion pipeline that turns messy documents into a searchable, answerable knowledge base: parsing, OCR, chunking, and embedding, wired into retrieval.

Typical deliverables

  • Document ingestion pipeline
  • OCR & PDF parsing
  • Searchable knowledge base
  • Diagram & schematic support
How I work

A clear path from idea to production.

No opaque process, no endless discovery. A focused engagement with visible progress at every stage.

01

Discovery

We map the problem, users, and constraints — and agree on scope, architecture, and what success looks like before a line of code is written.

02

Build

Focused, iterative development with tight feedback loops. You see working software early and often, not a black box that surfaces at the end.

03

Launch

Production deployment done properly — auth, data, monitoring, and testing in place — so the software holds up in the real world, not just a demo.

04

Support

Ongoing iteration, maintenance, and improvements as your product and user base grow — a partner who understands the system, not a stranger to it.

Tools I build with

Next.jsTypeScriptReactTailwind CSSNode.jsPostgreSQLpgvectorHybrid RAGLLMs & embeddingsOCR pipelinesMulti-tenant architectureCloud deployment

Let's scope your project.

Tell me what you're building and where it's stuck. I'll help you shape it into something you can put in front of real users.