Anthropic Software Engineer Interview Guides

Anthropic's software engineering interviews combine hands-on implementation with design discussions and a separate Culture conversation about the company's mission. Candidates describe practical coding projects, close attention to how systems behave, and questions about their own engineering decisions. These guides bring together our user-reported interview questions and firsthand candidate accounts so you can prepare for the work each round involves.

The guides below focus on Software Engineer, Senior Software Engineer, and Staff Software Engineer, using titles found on Anthropic's hiring board. Anthropic also hires for Senior Staff and Staff+ roles.

The early stages include a recruiter conversation and an online assessment when required. Some candidates receive the assessment before the call. The assessment is commonly a timed CodeSignal project with requirements that build on earlier work. It is separate from the live technical screen, where you'll work with an engineer on coding or, in some technical leadership interviews, design.

The virtual onsite brings together further technical interviews, a hiring-manager conversation, and Culture. Staff candidates should also prepare for a detailed discussion of a past project. Some teams split the onsite into groups and decide whether to continue between them. Successful SWE candidates in our community describe references after the onsite and before the final hiring decision.

The individual guides explain the tasks and preparation in more detail. Use your recruiter's schedule to decide where to spend your time, since the team and exact role affect both the format and the technical emphasis.

Our entry-level reports include coding, system design, and behavioral interviews, but there isn't enough detailed evidence to give Junior candidates a reliable round-by-round guide yet. The SWE guide draws mainly on reports from engineers with work experience. Don't assume that schedule applies unchanged to an entry-level application, or that system design will be absent because the role is entry-level.

Ask recruiting which assessments you'll take and what scope to expect in design. The SWE guide's coding and assessment sections are useful preparation references once you know the format of your own loop.

Senior Staff roles call for broader technical leadership. For these roles and Staff+ openings, use the job description to understand the teams, systems, and decisions you'd be responsible for.

Start with the Staff guide, especially its project and design sections, then discuss the role's scope with recruiting. For preparation, choose work that lets you explain technical direction across teams, difficult decisions under uncertainty, and the results of those decisions. Confirm whether there are additional domain or leadership conversations before planning a presentation.

Anthropic's current careers FAQ says it does not offer internships.

Anthropic encourages AI for preparation, but its candidate policy says not to use AI during assessments or live interviews unless explicitly permitted. Ordinary documentation and basic web search are a separate matter. Read the instructions for each session, and do timed practice without AI so you can implement and debug your own code.