Only what matters.               

Cirosoftware is the team behind Ciroturkiye.com. Alongside it, the makers of a handful of other products.

We don't take on everything.
We look for the long haul.
BASEDIstanbul
FOUNDED2025
AVAILABILITYSelective

We build software the way a good atelier builds a tailored garment — attentive to structure, proportion, and the quiet details that only the wearer notices.

Selected work

A short list. By choice.

We take on a few projects each year. What you see here is either live, on the way, or in careful preparation.

What we do

We don't fit in one box. By design.

We resist settling into a single vertical. The interesting problems are usually the ones that don't fit neatly into one.

01 · Product

Full product engineering, from first idea to last line.

Architecture, interface, backend, deployment. One team, whole product. We don't hand off — it's what keeps the thing coherent.

02 · Applied AI

AI built into the shape of the product.

Custom AI applications end-to-end — agents, copilots, RAG systems, and model-shaped interfaces. We integrate Claude, OpenAI, and open-source models with evaluation, latency tuning, and graceful fallback. Not wrappers; production systems.

03 · Platforms

Multi-tenant systems that don't creak.

Marketplaces, SaaS, internal tools. Built for the load you haven't seen yet, with the discipline of someone who'll still be on-call in two years.

04 · Interface

Interfaces that hold attention.

Typography, motion, rhythm. Design is not decoration here — it's the most honest reading of the system you've built.

05 · Infrastructure

The parts no one sees, until they fail.

Observability, security, migrations. The unglamorous half of software, treated as seriously as the visible half.

06 · Advisory

A senior eye on a hard decision.

Short, focused engagements — architecture reviews, stalled rewrites, roadmap sanity checks. Always written up, always concrete.

How we think

Notes from the shop floor.

A few of the things we say to ourselves, often enough that we eventually wrote them down.

On time

I

If a decision saves an hour today and costs ten later, it is wrong. Most of software is choosing which interest rate you'd like to pay.

On taste

II

Taste is not a luxury applied at the end. It's the thing that decides, quietly, which of a thousand small options you choose at every step.

On AI

III

Models don't make a product. The shape of the product around them does. We plan for the model to be wrong, and design accordingly.

On selectivity

IV

We turn down more work than we take. It is the only way we've found to stay good at the work we take.

On clarity

V

A junior engineer should read our code in six months and understand every line. If they can't, it's not their reading that's wrong — it's our writing.

Frequently asked

Questions we're often asked.

Direct answers. If what you need isn't here, a short email to hello@cirosoftware.com will reach us.

What is Cirosoftware?
Cirosoftware is an independent software studio based in Istanbul. The studio is the team behind Ciroturkiye.com — a B2B export marketplace — and builds custom software for a small number of carefully chosen clients each year. Our work includes AI applications, multi-tenant SaaS platforms, B2B marketplaces, and serious internal tools.
Do you build custom AI applications?
Yes — this is a core part of our work. We build LLM-powered products, AI agents, retrieval-augmented generation (RAG) systems, AI copilots, and model-shaped user interfaces. We integrate Anthropic Claude, OpenAI GPT, and open-source models into production web applications, with proper evaluation harnesses, latency tuning, and fallback design — not thin wrappers around an API call.
How do I hire you?
Send a short email to hello@cirosoftware.com. One paragraph is enough — the context, the problem, and the decision you're weighing. We respond within two working days. There's no sales process or mandatory discovery call before we begin a conversation.
What kind of projects do you take on?
Long-term engagements where we can own the product end-to-end. Typical projects: custom AI applications, multi-tenant SaaS, B2B marketplaces, serious internal tools. We resist specialising in a single vertical — the interesting problems usually sit between them.
What technologies do you use?
Our default stack is Next.js (App Router), TypeScript, React, PostgreSQL with Prisma. For AI: Anthropic Claude, OpenAI, Vercel AI SDK, pgvector for retrieval. For infrastructure: Vercel, Coolify, Docker. We're not dogmatic — stack choices always match the problem.
Do you work with early-stage startups?
Yes, when the problem is well-formed and the founders are committed. Our selectivity isn't about stage — it's about fit. Strong founder projects are welcome. A short email introduction is the right first step.
Do you work with clients outside Türkiye?
Yes. The studio is based in Istanbul, but we work remotely with clients across Europe, North America, and the Gulf. Communication in English or Turkish, async-first, with weekly written updates.
What's the relationship with Ciroturkiye.com?
Ciroturkiye.com is our flagship — a multi-tenant B2B export marketplace we designed, built, and operate. It's the reference work for what we build for others: multi-tenant scale, AI-generated storefronts, global search, strict tenant isolation. Cirosoftware is the studio; Ciroturkiye is our own product.
Cirosoftware.
Contact

If the fit is right, we'd like to hear from you.

If you're thinking about working with us, one paragraph in an email is enough to start. Tell us the context, the problem, and the decision you're weighing.

hello@cirosoftware.com
Caseload A few projects a year
Studio Istanbul
Response Within two working days