C3S - Clever Code Craft Studio

Our approach

We believe in software that does its job silently.

We don't chase passing trends or marketing slogans. We focus on what truly matters: stability, security and the comfort of everyday work. We build applications that make daily tasks easier for doctors, automate sales processes and bring order to data flow in medium-sized companies.

At Clever Code Craft Studio we combine engineering precision with interface simplicity. The result is business software that becomes a natural and reliable support for your company from the very first day after deployment.

Clever - smart simplification of processes Code - clean, easily scalable code Craft - craftsman-grade attention to every detail

Areas of expertise

Software tailored to the processes of your industry.

We start by deeply understanding what your working day looks like - and only then do we move on to writing code.

Retail and e-commerce

Automation of order processes, simplified inventory management, personalized loyalty programs and dedicated point-of-sale (POS) systems tailored to unconventional sales models.

In practice Integrating scattered mobile points of sale into a single, central, real-time manager's dashboard.

Medicine and healthcare

Intuitive appointment scheduling calendars, digital patient examination records, automated medical questionnaires and knowledge bases that support care coordination in clinics and practices.

Compliance and standards Patient data is encrypted at the database level. EU hosting, full compliance with GDPR requirements built into the system architecture.

Services and operational processes

Booking panels for clients, dedicated invoicing systems, tools for organizing field teams and logistics dashboards. We bring scattered tools and Excel spreadsheets together into one fast, coherent operational application.

A real business problem Replacing five separate SaaS subscriptions with one coherent system that perfectly reflects your company's unique procedures.

How we work

Four steps to deploying your software.

No unnecessary technical jargon. At every stage you have full transparency over the budget and the progress of work.

01 / CONVERSATION

Defining the needs

We analyze the challenges in your daily work. We talk about how the system should streamline your business processes.

02 / QUOTE

Concept and budget

Within 48 hours you receive a clear, fixed cost estimate and an implementation plan. We guarantee a fixed project price.

03 / PROTOTYPE

Alpha version

Within a few weeks we deliver a simplified but fully working application that you genuinely test in your company.

04 / DEPLOYMENT

Launch and growth

We hand over the source code, install the system on your infrastructure and support its further development.

Projects from real life

Code that solves real operational problems.

Two deployments - from paper daily sheets to a fully digital workflow, and from slow technical consultations to a calculator that engineers reach for every day.

Digital POS platform

A seasonal fruit seller with a network of field outlets.

The challenge

Reconciling takings and stock at the stands was done traditionally on paper. There was no quick insight into inventory levels and takings during the working day.

The solution

A lightweight, responsive tablet app for sellers, connected to a central database. The owner received a clear management dashboard accessible from a smartphone.

The result

Complete elimination of manual after-hours reconciliation of takings. The time needed to add a new point of sale cut to 60 seconds.

Read the case study

1 dashboardinstead of a series of calls and notes every day

Livereal-time view of inventory levels

"Working on unified, real-time data let us save more than a dozen hours a week on morning delivery logistics alone."

Interactive engineering calculator

KUVER GmbH - manufacturer of flexible high-current connections, Berlin.

The challenge

Electricians and installation designers had to manually match busbars to project specifications. Every product enquiry required a separate technical consultation - slowing down sales and tying up the company's engineering team.

The solution

An online calculator that computes the maximum current-carrying capacity of copper and aluminium busbars. The user enters dimensions and thermal parameters and instantly receives cross-section, heat losses, resistance, and maximum current - no login, no consultation needed.

The result

The tool became a daily reference for electricians and designers across Europe. Regular return visits build brand trust and directly drive purchase conversions for KUVER products.

Read the case study

< 1stime to match a product to specification requirements

Dailyused by professionals as a working tool, not just a sales page

"Instead of answering the same product-matching emails over and over - we gave engineers a tool. They come back on their own and place the order themselves."

Engagement models

Clear budget frameworks. No compromises.

Choose a base model matched to your project's stage of development. Every option guarantees the transfer of full copyright.

Starter

C3S Air

from 4,900 zł

A precise, dedicated tool designed to solve a single key operational problem in your company.

One key feature
Delivery time: 2-3 weeks
Source code handover

Configure C3S Air

Optimal

C3S Pro

from 14,900 zł

A complete, multi-module bespoke application. Unified admin panel, user roles and analytics.

Several connected modules
Delivery time: 4-6 weeks
Post-deployment support (30 days)

Configure C3S Pro

Advanced

C3S Max

pricing on request

An advanced system with external ERP/CRM integrations, dedicated databases and ongoing support.

Integrations with external systems
Server infrastructure maintenance
Dedicated SLA (technical support)

Configure C3S Max

Configure your software

Choose a base model and add extension modules to get an instant estimate.

1. Choose the base software model:

C3S Air from 4,900 zł

C3S Pro from 14,900 zł

C3S Max On request

2. Choose additional modules and extensions:

External integrations Payment gateways (Stripe/PayU), courier APIs, ERP or CRM systems.

+ 2,000 zł

Admin panel and reports Advanced charts, staff permissions and a database editor.

+ 3,000 zł

Medical and GDPR safeguards Full patient data encryption, log auditing and strict protection.

+ 1,500 zł

3. Delivery time:

Express mode (priority delivery) Shorten the Alpha delivery time by 1 to 2 weeks.

+ 25%

Estimated net cost

4,900 zł

approx. 2-3 weeks

* This calculation is an estimate and does not constitute a commercial offer. The final cost depends on the technical specification prepared at the first meeting.

Ask about this configuration

Guarantees and partnership

Responsibility for the code that powers your processes.

We understand that custom software is the foundation of a stable business. That is why we do not build solutions that depend on third-party subscriptions. We are a boutique team of developers and system architects - you talk directly to the authors of your code.

Once the project is complete, we transfer the full economic copyright to the software together with the code repository. You are completely free to choose your future partner for developing the system.

1:1Direct contact with the engineer leading your project

EUGDPR-compliant architecture, hosting in secure data centers in Europe

0 złA free 30-minute consultation meeting and quote

100%Ownership of the code and databases after the system is deployed

Meet the founders

Two perspectives. One shared goal.

C3S is not an anonymous software house. It is two people with deep expertise in business and technology who talk to you directly - from the first consultation to handing over the code.

Przemyslaw Czujowski

System architecture and security

Founder c3s.pl czujowski.pl

He combines nearly 30 years of experience leading complex projects (Pre-Sales, KAM) with advanced engineering and analytical expertise. At C3S he is responsible for solution architecture, the quality of delivered code and rigorous data security. As a lecturer and AI practitioner, he designs systems with a focus on scalability and digital resilience. He ensures the technologies deployed guarantee continuity of operations and stable growth for your business, with no architectural compromises.

Romuald Karkoszka

Strategy and business processes

Founder c3s.pl consaldi.pl

Drawing on 25 years of experience in sales, marketing and product management, he effectively translates business goals into precise technology requirements. At C3S he is responsible for pre-implementation analysis and the visual design of every system. His approach is fully technology-agnostic – he matches tools and architecture strictly to your company's budget and operational processes, favouring pragmatism and cost optimisation over passing trends.

FAQ

Frequently asked questions.

How does the copyright transfer process work?

Along with the settlement of the final stage of work, we transfer the full economic copyright to all the source code written. You receive access to the code repository and the complete database. We do not apply any licenses that limit the number of users or workstations.

Is medical software fully secure?

Yes. When designing solutions for medical facilities, we implement advanced security procedures: encryption of databases at rest, two-factor authentication (2FA), full logging of user activity and hosting in a cloud that meets GDPR requirements for sensitive data.

What does support look like after the application goes live?

Every package (C3S Air / C3S Pro) includes free post-deployment support (warranty and technical assistance) for a period of 14 to 30 days. For the C3S Max model, we can sign an ongoing service agreement (SLA) with a guaranteed response time to requests.

What if my requirements change during the project?

A deployment based on a prototype (Alpha) version is designed precisely to catch such changes at an early stage. If during the work you decide to add a new feature, we will quote it as a separate extension on clear financial terms, without halting work on the main version.

Custom systems. Built without compromise.