Prague · Czech Republic · European Union

Engineering custom software & digital solutions for European enterprises

Full-cycle software development, IT consultancy and modern cloud architecture from Prague. We write the specification before the code, hand over the source, and put our registration numbers in the footer.

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Contracting entity: Czech s.r.o., EU VAT registered
Working languages: English · Czech
Reply to enquiries: One business day, by an engineer

Verified company details

Asterion Software s.r.o.

IČO

10736697

DIČ / EU VAT

CZ10736697

Registered office

Bělehradská 858/23, Vinohrady, 120 00 Praha 2, Czech Republic

Activity

Computer programming, software consultancy and related activities · CZ-NACE 62.01 — Computer programming activities

Checkable in a public registerOpen ARES record

Engineering stack

Typed, modern PHP on the server

Strict types, readonly value objects and PSR-12 throughout. Laravel where the ecosystem earns its keep, a clean modular architecture where a framework would only get in the way.

PHP 8.3
Laravel
PSR-12
PHPUnit
Composer

Full technology stack

Core services

B2B tool

Shape your project in five questions

The estimator returns delivery phases, an indicative duration band and the team composition — an engineering profile, not a price.

Open the estimator

A registered Czech company

Asterion Software s.r.o., IČO 10736697, registered office at Bělehradská 858/23, Vinohrady, 120 00 Praha 2, Czech Republic.

EU VAT registered

DIČ CZ10736697, validating in the European Commission VIES system. Reverse charge for EU business customers.

You own the source code

IP in bespoke work transfers on payment, and the code sits in your repository from the first commit.

English and Czech

Working hours Mon–Fri, 09:00–17:30 Europe/Prague, overlapping the whole Central European business day.

Core services

Four ways we are contracted

Each one has a written scope, a stated deliverable set and a contract shape. If your requirement does not fit any of them, say so in the estimate request and we will tell you honestly whether we are the right supplier.

All services

Scalable web and desktop systems

Custom Enterprise Software

Business systems built to a written specification: domain modelling, architecture, implementation, automated tests, deployment pipeline and handover of the complete source code.

Domain modelling and a written functional specification before a line of code
Web applications, internal operations platforms and back-office systems
Relational data modelling, migrations and reporting views
Role-based access control, audit trails and data-retention rules
Automated test suite and a reproducible CI/CD pipeline
Documentation written for the engineer who inherits the system

8–24 weeks depending on scopeFixed-scope delivery or milestone-based contractRead the scope

IT & Architecture Consultancy

Cloud transition, security and performance audits

Independent technical assessment: architecture review, cloud transition planning, performance and security audits, delivered as a written report with prioritised, costed recommendations.

2–6 weeksDetails

Dedicated Development Teams

Staff augmentation for European businesses

Named engineers working inside your process, your repository and your sprint cadence, contracted monthly from an EU-registered company with a 30-day notice period.

Monthly rolling, 3-month minimum recommendedDetails

API & System Integration

Third-party systems, connected properly

Designed, versioned and documented APIs, plus integrations between ERP, CRM, payment, logistics and identity systems — with retries, idempotency and reconciliation handled rather than hoped for.

4–12 weeks per integration programmeDetails

How we work

Four phases, each ending in something you can hold

Every phase produces an artefact — a specification, an architecture record, a deployable build, a runbook. Progress you can only hear about in a status meeting is not progress.

011–2 weeks

Technical discovery

A paid, time-boxed discovery: we read the existing code and data model, interview the people who run the process today, and write down the constraints. It ends with a specification, not a proposal deck.

021–2 weeks

Architecture and scope

Architecture decisions are recorded with the alternatives we rejected and why. Scope is split into milestones that each end in something demonstrable, so progress is observable rather than reported.

03Bulk of the engagement

Iterative delivery

Two-week iterations against your repository and your board. Every iteration ends with a deployable build, automated tests, and a written summary of what changed and what is still open.

041–2 weeks, then optional retainer

Handover and support

You receive the source code, the infrastructure definitions, the runbook and a recorded walkthrough. Continued support is a separate, optional agreement — never a dependency we engineer in.

Case studies

Representative engagements, described honestly

Four shapes of work we are regularly contracted for. No client is named, no logo is shown and nothing here is presented as a guaranteed result — real, contactable references are available under NDA.

All engagement patterns

Manufacturing & logistics

Replacing a spreadsheet-run operations process

Order intake, scheduling and dispatch coordinated across a shared spreadsheet, an email inbox and one person who knows the exceptions.

PHP 8.3
React
MySQL
Docker

Fixed-scope delivery, typically 12–20 weeks

Professional services

Moving a self-hosted application to managed cloud infrastructure

A working application on ageing hardware, with deployments performed by hand and no tested restore procedure.

Terraform
AWS
Docker
GitHub Actions

Consultancy plus implementation, typically 6–12 weeks

Retail & e-commerce

Connecting an ERP, a storefront and a logistics provider

Three systems exchanging data through nightly CSV files, with mismatches discovered at month end.

REST
OpenAPI
RabbitMQ
PostgreSQL

Fixed-scope delivery, typically 8–14 weeks

Software product companies

Extending an in-house product team

A product roadmap that outgrew the internal team, with hiring lead times measured in quarters.

React
TypeScript
Node.js
CI/CD

Dedicated team, monthly rolling

Why there are no client logos on this page

Publishing a client list or a delivery statistic that a visitor cannot verify is a claim, and we do not ask anyone to take our claims on trust. What we publish instead is checkable: our registration in the Czech Commercial Register, our EU VAT number, and the way we work. References with names and phone numbers are provided under NDA once a conversation is real.

Contracting

Three engagement models, stated plainly

We will tell you which one fits before you ask for a quote — including when the honest answer is that none of them does.

Fixed-scope delivery

Best fit

A defined system with a specification both sides signed.

Milestones, acceptance criteria and a change-control procedure agreed up front. Best when the requirement is stable and the budget has to be approved before work starts.

Dedicated team

Best fit

Ongoing product work where the backlog changes faster than a contract can.

Named engineers on a monthly rolling contract inside your process, with a 30-day notice period on both sides.

Advisory retainer

Best fit

You have an internal team and need architecture review or a second opinion.

A capped number of hours per month for architecture review, code review, incident support and technology decisions.

Contracting entity

Asterion Software s.r.o., IČO 10736697, registered in Czech Republic. One EU invoice, in EUR or CZK.

VAT treatment

DIČ CZ10736697. For VAT-registered business customers in other EU member states, the reverse-charge mechanism applies.

Code ownership

Intellectual property in bespoke work transfers to you on payment. The code lives in your repository from the first commit.

Start with the project estimator

Frequently asked

The questions procurement asks first

If yours is not here, the contact form reaches an engineer rather than a sales queue.

Who owns the source code you write?

You do. Intellectual property in bespoke work transfers to the client on payment, and the code lives in your repository from the first commit. We keep no licence over it and build no dependency on us into the architecture.

How do you charge, and in which currency?

Fixed-scope engagements are quoted per milestone; dedicated teams and advisory retainers are invoiced monthly. We invoice in EUR or CZK from a Czech VAT-registered company (DIČ CZ10736697). For VAT-registered business customers in other EU member states, the reverse-charge mechanism applies.

Do you publish prices on the website?

No. The estimator on this site returns an engineering profile — phases, an indicative duration band and the team shape — not a price. A price that ignores your existing systems, data quality and compliance obligations would be a number we could not stand behind, so we quote in writing after the discovery conversation.

Can you work with our existing team and our tooling?

Yes, and it is the common case. We work in your repository, your issue tracker and your review process. If your stack differs from the one listed on this site, tell us in the estimate request — we will say plainly whether we are the right supplier for it.

What happens to our data during an engagement?

We process client data only on documented instructions under a written data-processing agreement, keep production access to the minimum needed, and prefer anonymised or synthetic data in development environments. Our own site collects only what you type into a form; the privacy policy lists every field and its retention period.

Are you certified to ISO 27001?

No. Our internal controls are modelled on ISO/IEC 27001 Annex A and the OWASP ASVS, but Asterion Software s.r.o. does not hold a certification against either standard, and we will not claim one. If your procurement process requires a certified supplier, tell us early so nobody wastes a cycle.

Next step

Tell us the shape of the work. We will tell you the shape of the engagement.

Five questions in the estimator produce delivery phases, a duration band and the team composition. An engineer replies in writing within one business day — and will say plainly if we are not the right supplier for what you need.

Request software estimate Contact us directly

info@asterionsoftwaresro.com · +420 220 123 456