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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
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Our key strengths

700+ Java developers

450+ .NET developers

250+ mobile & web developers

600+ embedded & C/C++ developers

250+ help desk experts

Meet our experts

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At Sii, I am an architect of Java-based solutions. I specialize in the telecommunications and pharmaceutical industries. In addition to software development, I support my clients in the development of CI / CD processes on the Azure DevOps platform. I devote my free time to DIY, embedded systems and 3D FDM prints, which I treat as another working tool in my workshop. Read more Read less
Sergiusz Roszczyk | Solution Architect
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On a daily basis, I work with clients to create the optimal architecture of IT systems, while specializing in the area of Big Data and Data Lake.I like all kinds of sports, but long-distance running is what I'm best at. Read more Read less
Łukasz Ryński | Java Architect
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I am responsible for the software development process from pre-sales to delivery, including load estimation, framework and tool selection, team building, deployment, testing and DevOps.Getting to know the infrastructure - road, rail and bicycle - and table games are among my favorite activities. Read more Read less
Piotr Jankowski | Solution Architect
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In my daily work at Sii, I collect, analyze and manage requirements for Puma's product lifecycle management system. Together with system architects, I develop concepts of new solutions to customer needs, which I then translate into tasks for the development team. Relaxing with a good book, finding new places serving delicious food and playing with my French Bulldog - that's it. Read more Read less
Olga Łuczak | Analityk
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I combine over twelve years of experience in UX and interface design, supporting the largest companies in the world. With a formal IT education, I have worked in the digital domain for many industries, including automotive. I am always guided by the goal of creating the most useful and communicative project. Privately, I love taking my family on trips. Read more Read less
Sławomir Molenda | UX Designer
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In my daily work, I support development teams as a lead. I turn initial concepts into working solutions that enjoy stability and low maintenance costs for many years. In-depth analysis, careful planning and simple production rules - these are my key to success. Privately, he is interested in filming, 3D animation and small garden architecture. Read more Read less
Tomasz Dabulis | Architect
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At Sii, I take part in the process of delivering solutions to clients by supporting our teams and ensuring their productivity. Every day with several Scrum teams, also in scaled Agile, using e.g. the SAFe framework. My teams implement projects in various technologies and areas - we use .NET, React, Flutter and many others. In my free time, I really enjoy baking cakes (and sharing them with others!) and spending time with my sons. Read more Read less
Anna Szopińska | Delivery Manager

You have our support

We're experts in software development & maintenance

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We can assist you on every step

01
Idea
02
Analysis & requirements
03
Solution design
04
Development
05
Testing
06
Maintenance

We know your business

Our services are suited to your industry

We support the world's major companies

Learn more about us

See what's new at Sii

Latest news

News

Efficient and surprise-free – intelligent risk management in the healthcare sector

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Sii Poland again among the 1% of the most sustainable IT companies – EcoVadis Platinum 2022 certificate for the...

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Software development, dance and people are his three greatest passions. Meet Marcin, Architect, who has been combining...

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Once you understand the needs well, you will know how to act effectively. Meet Maciek, BI Architect from Sii Warsaw...

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Will thirteen be his lucky number? Get to know the story of Krzysztof, an Architect, who initiated the Lodz branch of...

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The digitization of the justice system. Find out how Sii Poland experts for over 8 years have been supporting the development...

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Learn more about Data & Analytics Competency Center at Sii, which is celebrating its 5th anniversary!

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Come meet a real guardian of data quality! Read the interview with Jowita Kukurudza, a Product Owner at Sii Poland!

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Passion-driven projects that have strong business value and make a real impact. Meet Sii Sweden and learn how our Power...

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Vehicle sound generator, smart card components and smart homes. Meet the Embedded Sii Poland Competency Center, which...

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The International Freelancer project at Sii Poland kicks off! Discover in which 16 countries we’re looking for new...

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Seamless access to healthcare wherever you are, backed by the highest standards of patient data security. Learn more...

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Risk management in software systems for Medical Devices. Learn how Sii Poland experts help clients implement effective...

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Events

MS Teams Sign up
February 9, 2023
All roads lead to Machine Learning – ML applied in self-driving cars
On demand Watch the recording
Document processing powered by AI
On demand Watch the recording
C++ in AI - tricks and treats
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