Custom Software & AI Engineering

We build the software you can't buy off the shelf.

From an AI feature that has to work in production, to a full multi-tenant product — Cbeyond Technologies designs, builds and runs custom software for teams who need it done properly the first time.

Not a body shop. We take on the specialised projects other vendors pass on — and build them with AI leverage that shows up in your quote.

YOUR USERS Product interface web apps · dashboards · portals APIs & services APIs · multi-tenant · metering · billing Data & AI databases · vectors · RAG · agents · evals Cloud & delivery infrastructure as code · CI/CD · monitoring YOUR CLOUD ACCOUNT · YOUR REPOSITORY
Senior-onlyThe people who scope it, build it
You own itYour repo, your cloud, your IP
Production-firstTests, CI and monitoring from day one
No lock-inOpen tooling you can run without us
What we build

Engineering across the whole stack

We take on work where the hard part is the engineering — systems that have to be correct, scale, and survive contact with real users. We work in whatever stack you already run.

AI & LLM systems

The part most teams get stuck on: making an AI feature reliable, affordable and safe enough to put in front of customers.

  • Agents, tool use and orchestration
  • RAG and retrieval over your own data
  • Evaluation harnesses and quality gates
  • Token, latency and cost optimisation
  • Prompt-injection and PII safeguards

Custom product engineering

A whole product, end to end — or the parts of one your team doesn't have the bandwidth to build.

  • Multi-tenant SaaS platforms
  • Customer portals and admin consoles
  • Metering, billing and invoicing
  • Authentication, roles and permissions
  • Public and partner APIs

Cloud & platform

Infrastructure defined in code, so what runs in production is something you can read, review and rebuild.

  • Cloud architecture and migration
  • Infrastructure as code, in your repo
  • Containers and serverless runtimes
  • CI/CD pipelines and release gates
  • Monitoring, tracing and alerting

Modernisation & integration

Moving what already works into something maintainable — in staged increments, with the cutover planned rather than discovered.

  • Legacy to cloud-native migration
  • Monolith decomposition, done in steps
  • Third-party and internal system integration
  • Data migration with verification
  • Test coverage on code that has none

Data & retrieval

The plumbing that decides whether your analytics and your AI features are trustworthy or merely plausible.

  • Ingestion and transformation pipelines
  • Vector search and semantic retrieval
  • Reporting and analytics surfaces
  • Event streaming and async workers
  • Data quality and lineage checks

Automation & internal tools

The unglamorous work that quietly gives time back to the people doing the actual job.

  • Workflow and back-office automation
  • Document and content processing
  • Internal dashboards and ops consoles
  • Scheduled jobs and reconciliation
  • Developer tooling and CI automation
Why us

The projects most vendors turn down

Two reasons we can say yes to work that gets declined elsewhere — and quote it below what you're bracing for.

Niche by choice

If you've been told "that's not really what we do"

Most shops are built to repeat a template — another storefront, another CRM integration. We're built for the projects that don't fit one, and those are the ones we'd rather have.

  • Nothing off the shelf solves itThe thing you need hasn't been productised, so buying your way out isn't on the table.
  • The domain is the hard partUnderstanding the problem takes longer than building the screens — which is where generic teams stall.
  • It needs research before a sprint planNobody can estimate it honestly until someone has prototyped the risky part. We'll do that first.
  • The integration surface is uglyLegacy systems, undocumented formats, constraints that rule out the obvious approach.
  • Too small for a large vendor, too hard for a generalistThe gap this kind of work usually falls into — and the one we exist to fill.
AI-heavy delivery

Expect the quote to come in under what you budgeted

We build with AI across our own delivery — scaffolding, migration, test generation, review, documentation. It isn't an experiment here; AI tooling is the product line we ship. That leverage lands in your estimate, not just in our margin.

  • Smaller numbers for the same scopeCome to us with a budget shaped by a traditional build, and compare.
  • Faster to something you can clickWorking prototypes arrive early, so the scope conversation happens over software instead of a document.
  • A human is accountable for every mergeAI accelerates the work; an engineer still reads it, owns it and puts their name on it.
  • Quality enforced, not promisedTests and CI gates block the merge — the same discipline we hold our own products to.
  • We know where AI doesn't helpWe build LLM systems for a living, so we're realistic about the parts that still need a person thinking slowly.
How we work

Three ways to start

Pick the one that matches where you are — two are open today, the third is on its way. Most engagements begin small on purpose, so you can judge us on delivered work rather than on a proposal.

Option 01

Discovery sprint

You have the problem but not the plan. We scope it properly — architecture, risks, build sequence and an honest estimate — and hand it over as a document you can act on.

Fixed scope · fixed price
Option 02

Build it with us

You have the plan and need it built. We take delivery ownership of a defined scope and ship it in working increments you can see, use and redirect — not a black box that appears at the end.

Milestone-based delivery
Option 03 · Coming soon

Embed with your team

You have the team but not the capacity, or not the specialism. When this opens, our engineers will join your stand-ups, your repo and your review process, and work as part of your team.

Not open yet — mention it in your enquiry

What you get, whichever route you take

These aren't upsells. They're how we build.

  • Your repository, your cloud accountWe work in your infrastructure from day one. Nothing to migrate at the end, nothing held hostage.
  • Full IP ownershipThe code, the designs and the documentation are yours outright, assigned in the contract.
  • Tests and CI, not just featuresAutomated tests and a working pipeline ship alongside the code, so the next change is safe to make.
  • Infrastructure as codeYour environment is a reviewable file in your repo, not a configuration someone remembers.
  • Handover that actually hands overArchitecture notes, runbooks and a walkthrough with your engineers — built in, not billed extra.
  • Open tooling by defaultWe reach for open standards first, so you keep the option to run it, extend it or leave.
Why trust us with it

We build our own products the same way

The most honest reference we can give you isn't a logo wall — it's the products we design, build and run ourselves. One of them is open source, so you can read exactly how we work.

Shipped

TokenLean

Our own product: a drop-in proxy that cuts what teams spend on their LLM calls. It exists because we needed it — and it's the clearest sample of how we engineer.

  • 28 optimisation techniques across 8 groups, each independently switchable
  • Multi-tenant from day one — isolation, metering, billing and per-tenant keys
  • Two trust boundaries scanning both prompts and retrieved context
  • Open-source core on GitHub — inspect it, self-host it, fork it
  • Infrastructure as code, deployed to cloud-native serverless runtimes
On the roadmap

Zyroflo

The delivery discipline behind our own work, becoming a product: a fully automated SDLC pipeline you configure end to end — and the way we already run client projects.

  • You choose the steps, the agents, and the model for each one
  • You choose where a human signs off — and that gate is enforced, not advisory
  • Quality gates run inside the pipeline, so speed never quietly costs correctness
  • Every run leaves an audit trail — what ran, what passed, who approved it

Who you'll actually work with

Cbeyond is deliberately small and senior. The people who scope your project are the people who build it — there is no layer of account managers between you and the engineering.

  • The co-founders are the developersNot a sales team with delivery somewhere behind it. The founders wrote our own products, and they write the code on your project too.
  • Direct access, no gatekeepingA shared channel with the people writing the code, from kickoff to handover.
  • We'll tell you when not to buildIf something off the shelf solves it cheaper, we would rather say so than sell you a project.
Start a project

Tell us what you're trying to build

A short description is enough to start. We'll come back with an honest view of scope, approach and whether we're the right team for it — and we'll say so if we aren't.

Subject : New Custom Software Enquiry

We reply to every genuine enquiry. No mailing list, no follow-up sequence.