I applied through an employee referral. I interviewed at Giffgaff (London, England) in Mar 2026
Interview
Interviewed in March 2026 - process took around 2 weeks. Was broken up into 4 sections.
1. Quick call with internal recruiter (fairly standard HR screening)
2. Pair Programming Test
3. System Design Interview
4. Behavioural/Cultural interview.
Overall, one of the most positive experiences I've had while interviewing, feedback is taken seriously and is given at every step of the process.
Interview questions [3]
Question 1
Pairing test: questions around Java/Spring + Coding Test to be done using TDD.
Reasonable and timely. Not left waiting too long and informed every step of the way. It gave a good feel for what it would be like working within the company. Very Transparent
Interview questions [1]
Question 1
about the giffgaff values and how they align with you
I applied online. The process took 3 weeks. I interviewed at Giffgaff in Feb 2025
Interview
Interview was 3 stages, with the first being a short screening call. I had one main contact guiding me through the entire interview process and I felt they were extremely helpful, positive and friendly throughout.
Second interview was a chat with primary stakeholders to talk about background and experience, with one or two ice-breaker style questions.
Third stage was a realtime technical test with access granted to shared document and the technical platform at the start of the call. I had no previous experience with technical tests, but it was completely on-topic for the role I applied for and I felt comfortable following the requirements and narrating my thought process whilst going through the steps. We also chatted more about some technical topics.
Everyone was friendly and presented well and I felt encouraged at every stage.