I applied online. I interviewed at Kraken (Manchester, England) in Apr 2024
Interview
I interviewed specifically for the Kraken Flex department. It's a four stage interview process, which I did fully remotely. I applied online with CV and cover letter, the recruiter contacted me a couple of days later. It was two and a half weeks from my application online to offer from Kraken.
First stage was initial screening call with a recruiter, standard questions about your experience, why you're interested in the role / working at kraken, and what your salary expectations are.
Second stage is a take-home task (mine was in python), there is no time limit but the recruiter asks you to let them know when they can expect it to be retuned.
Third stage is an informal style technical interview with two engineers about your experience and discussion on subjects like cloud systems, test-driven development, and best practises.
Fourth stage is a system design interview, they give you the scenario the day before so you can be familiar with it, and then the interview is white boarding solutions online with two engineers, and they will ask you about trade-offs for decisions and introduce other considerations to discuss.
Note: this was the most fun system design interview I've ever done, it was really great to familiarise myself with the scenario in advance, so that on the day I could focus on discussing the different approaches to the solution rather than trying to quickly read/understand the problem. It really allowed us to jump straight in to the white boarding and left lots of time of discussing the system design.
Interview questions [1]
Question 1
Tell us about a project you worked on that you are proud of.
I applied online. I interviewed at Kraken (London, England) in Feb 2026
Interview
Application
I applied through Indeed. The process took 1 month. I interviewed at Kraken (UK) in Feb 2025
Interview
1st stage: Had a chat with a wonderful recruiter, set the stage for the whole interview process. Discussions about the company structure, team I would be working it, salary expectations and general question regarding motivation for joining the team.
2nd stage: Take home test. A django command line app for parsing file(s). Here, they evaluate you on taking on an ambiguous task and providing a scalable solution. Document your assumptions properly.
3rd stage: Further technical discussion about the task. Discussing approach, decisions taken and tradeoffs. How can the app be extended.
4th stage: The final stage. Focuses on your technical skills and the wider Python/Django ecosystem—discussions around ways of working.
After the last interview, the offer came within 30 minutes.
I really enjoyed working with my recruiter (Brad). He was super supportive.
Interview questions [2]
Question 1
1st technical interview
Discuss your approach for taking on the technical task.
How do you approach testing?
How can we make this app more robust to handle more/large files?
You held data in memory before bulk creating. How would you handle OOM issues?
2nd technical interview(last stage)
They generally ran through my resume and asked questions.
Testing, App performance, CI/CD, Microservices (Advantages/Disadvantages)
I applied online. The process took 3 weeks. I interviewed at Kraken (Paris) in Nov 2025
Interview
Le processus d'embauche est très straightforward:
1. Un appel en visio RH
2. Un test technique à faire à la maison (3-4h) en Python, Django
3. Un appel en visio avec 2 ingénieurs pour discuter du test technique et des possibles améliorations
4. Un appel en visio avec 2 personnes de l'équipe (team fit)
Toutes les personnes que j'ai rencontrées lors de ces entretiens ont été très bienveillantes. Le processus est transparent et très rapide. J'ai eu des retours le lendemain de chaque entretien. Les retours peuvent prendre 1 semaine au maximum. J'ai aussi reçu un document qui expliquait tout ce processus, contrairement à d'autres entreprises où le processus peut être flou et long, donc c'était une agréable surprise. Franchement ce type de processus humain est très rafraîchissant, merci la team Talent Acquisition. De plus, la Talent Acquisition Specialist était au top, très à l'écoute et réactive.
Interview questions [2]
Question 1
"Quand est-ce que c'est compliqué de faire un git revert?"
1. Screening call with recruiter to learn about the company, very chill
2. tech test
3. meeting with engineers who reviewed the test to discuss the solution and how you'd improve it
4. Culture fit and further technical discussion with head of engineering
Overall it's a *very* straight forward process with only a take-home test and 2 stages where you talk to people in the company. Compared to other companies that had 4+ stages not including the screening call it was very good to see someone still hiring sensibly. Offer came very quickly after the final call and I was delighted to accept. I was also treated very well by the recruitment team and it felt like the process was decisive and quick.
Interview questions [1]
Question 1
Write a django application to parse and view meter readings