
Slalom Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 72 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Slalom.
Senior Software Developer
The process was quite fast and I received feedback. The outcome wasn't what I was hoping for, but I admit I barely prepared. I do recognize that if I had studied the week before, I could have gotten a better result.
- Could you explain general Java concepts?
- How would you convert Roman numerals?
- How would you design a serverless architecture?
Cloud Software Engineer
I applied for a role that I felt matched my experience and a recruiter got in touch fast. They seemed keen to speed things up, usually setting up interviews with just a day or two notice. After finishing four interviews within two weeks, I was told a decision would be coming. A few days after my last interview, I heard the team liked me and I should expect an offer, just needing some paperwork and a background check. For almost two weeks, I heard nothing, even when I asked for updates. Then, over a month after I first interviewed, I was told the position actually needed someone more experienced and I wouldn't get an offer. I was upfront about my experience the whole time and was told they were looking for someone with my background. I don't think they intentionally misled me, but going through a long interview process with such a bad grasp of what the job actually needs shows really bad organization and incompetence from management, and it's disrespectful to people looking for work. They should have just told me politely that they wanted someone with more experience right after I applied; instead, they wasted my time. My advice is don't let them waste yours.
- What would your ideal job be like?
Software Engineer
Applying to Slalom felt like a never-ending cycle of disappointment. I went for three roles over a year, two local and one Slalom Build, really wanting to join because of their reputation. The first time, I waited 5 months total, was told I'd get an offer, then nothing. Months later, I reapplied. The job description was so unclear, it was like they were hiding something. My first interviewer asked for work samples to critique as a 'colleague,' but instead just forwarded them to the next manager. This manager was late, eating, and clearly didn't want to talk to me. Fast forward to the Software Engineer role: I aced the phone screen and coding interview, with the interviewer even saying I'd passed and the recruiter would call. Four days later, the recruiter called saying I wasn't ready, with vague feedback about API experience and a suggestion to reapply in 6-12 months. The communication was all over the place, promises were broken, and their transparency claims felt false. It's baffling how a 'best place to work' can have such a chaotic hiring process. They really didn't seem to want me there. If you're interviewing, brush up on SQL, design patterns, REST APIs, OOP principles (like SOLID), and FizzBuzz.
- Can you explain the distinction between a class and an interface?
- What are the fundamental principles of Object-Oriented Programming?
- Could you list some typical design patterns?
Slalom Software Engineer Interview Questions
Quoted word for word from Slalom interview reports.
“Find the missing number in a sorted array of integers from 1 to 10.”
Read reports →“What is the difference between a POST request and a GET request?”
Read reports →“How would you combine two number strings into a single integer string, for instance, adding "12" and "5" to get "17"?”
Read reports →“Could you find numbers between two given numbers that have consecutive repeating integers?”
Read reports →“What is the Fibonacci sequence and how would you implement it recursively?”
Read report →“Can you explain the difference between an abstract class and an interface?”
Read report →“How would you improve the speed of FizzBuzz if it has to be called 1,000,000,000 times a day?”
Read report →“What's the approach to find the 10th highest salary from a list of salaries?”
Read report →“Can you explain the various lookup relationship types in Salesforce, including their respective use cases and best practices?”
Read report →Formats, difficulty and experience
Across all 72 Slalom interview reports.