Sii Poland Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 15 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Sii Poland.
Sii Poland
Software Engineer
Entry Average Positive experience Accept offer 2 rounds
Interview process
Recruiter call Phone screen
Interview formats
Technical Behavioral
The interviewer was nice, and the questions were relevant. The recruitment process was quick and straightforward, and I received feedback afterwards. The atmosphere during the calls was generally positive and friendly, and I was quite happy with the experience.
Confirmed questions2 questions
- Could you describe your understanding of various technologies?
- How would you rate your English proficiency?
Sii Poland
Chatbot Developer
Mid Average Negative experience No offer 2 rounds
Interview process
Recruiter call Technical screen Background check
Interview formats
Technical Behavioral
This was a terrible interview experience. Even though the job was for a Chatbot Developer, the interview focused on .NET definitions for an hour. I answered most questions, but it didn't matter. They later emailed saying the process was negative, attaching feedback that was incredibly insulting and derogatory, calling me 'Miserable', 'total drama', having 'minus knowledge', being 'merciless', and stating 'I don't believe him, he has done nothing in his life and he just watched a tutorial'. This feedback was shocking given my history as a top performer. They should not use such language, especially since they shared feedback meant for internal archives. It's an unethical, unprofessional, and potentially racist company. I wouldn't recommend it, particularly for international professionals working in B2B, as they might fire and mob you without reason.
Confirmed questions3 questions
- Can you explain what a string builder is?
- What is a Partial class in .NET?
- What is a Compiler?
Sii Poland
Software Developer Intern
Intern Easy Positive experience Accept offer 3 rounds
Interview process
Recruiter call Technical screen Offer
Interview formats
Behavioral Technical
First contact on LinkedIn, followed by a quick mutual introduction interview. Second interview with the Scrum Master, more technical. Third and final interview to discuss terms and confirm the signature.
Confirmed questions1 question
- Have you ever coded in C# with .NET
Sii Poland Software Engineer Interview Questions
Quoted word for word from Sii Poland interview reports.
“What is a Partial class in .NET?”
Read reports →“What is a Compiler?”
Read reports →“Can you explain what a string builder is?”
Read reports →“Can you tell me what the acronym GIL stands for?”
Read reports →“What is SOLID?”
Read report →“What are the best practices for clean code?”
Read report →“What are design patterns and can you give an example of their usage?”
Read report →“Can you explain the internal workings of Java?”
Read report →“What are the differences between React and Angular? Which one do you prefer?”
Read report →Formats, difficulty and experience
Across all 15 Sii Poland interview reports.