Software development & maintenance

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Software development & maintenance

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Software development
& maintenance

We provide ready-to-use, modern solutions, supporting the client throughout their entire development process, from concept definition to testing and maintenance

Damian, Dynamics CRM Developer
Damian, C++ Developer

We have the scale,
expertise, and references

700+

Java developers

450+

.NET developers

250+

mobile & web developers

600+

embedded & C/C++ developers

250+

help desk experts

Meet our specialists and check what challenges they're able to tackle

Sergiusz Roszczyk

Solution Architect, 15 years’ experience

At Sii I work as an architect and Java team technical leader in the telco industry.

3D printing and embedded electronics working together – that’s what really interests me.

Łukasz Ryński

Java Architect, 14 years’ experience

On a daily basis, I cooperate with our clients to create optimum IT architecture, at the same time working with Big Data and Data Lakes.

I like different types of sports, but running long distances is what I do best.

You have our support

We cover all aspects of software development & maintenance

Success stories of our clients

E-Blood System E-Blood System

Customer Selfcare System Customer Selfcare System

Development of a new product lifecycle management system Development of a new product...

ITC system (e-KRK system) ITC system (e-KRK system)

ONE OF THE LARGEST CORPORATIONS IN THE OIL INDUSTRY

Implementation of automated fuel sales application Implementation of automated fuel sales...

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We can assist you on every step

Idea

Analysis & requirements

Solution design

Development

Testing

Maintenance

We know your business

Our services are suited to your industry

Industry leaders trusted us

Learn more about us

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From a 1-person startup to a company reaching 5 000 experts and 1 billion revenue – 15 years of Sii Poland

Software development & maintenance

We provide ready-to-use, modern solutions, supporting the client throughout their entire development process, from concept definition to testing and maintenance

Meet our specialists and check what challenges they're able to tackle

Sergiusz Roszczyk

Łukasz Ryński

From a 1-person startup to a company reaching 5 000 experts and 1 billion revenue...

How companies are winning against the pandemic – explore 5 technologies key...

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Einige Inhalte sind nicht in deutscher Sprache verfügbar.Sie werden dann auf die englische Sprachversion der Website weitergeleitet.

Software development
& maintenance

Einige Inhalte sind nicht in deutscher Sprache verfügbar.
Sie werden dann auf die englische Sprachversion der Website weitergeleitet.