1X interview process & guide 2026
Everything we know about interviewing at 1X: what each round tests and compensation by level.
How hard is the 1X interview?
Aggregated from 1 interview experiencesWhat 1X actually tests for
How prominent each skill is across reported loopsFind the guide for your role
This is your next step: open the guide for the role you are interviewing for. Each one carries the questions 1X interviewers actually ask that position, the loop structure, and pay by level.
What 1X pays, by level
Estimated total compensation: base salary plus stock and annual cash bonus.
1X interview FAQ
Answered from real candidate and workplace dataHow hard is the 1X interview?
Candidates most commonly rate 1X interviews as medium, based on 1 reported interviews.
How much does 1X pay?
Reported total comp across roles at 1X ranges from roughly $108k to $280k per year, varying by level, team, and location.
What topics does 1X test in interviews?
1X interviews most often cover Cloud & Infrastructure, Operating Systems, Core Systems Engineering, Reliability Engineering, and Identity & Access Management (IAM). The exact emphasis depends on the specific role you apply for.
What roles can I prepare for at 1X?
Dataford has interview guides for 1 role at 1X, including Software Engineer.
Ready for your 1X interview?
Practice the exact questions from this guide with AI feedback, and walk into your loop knowing what to expect.