Software Engineer, Claude Code

Responsibilities:

• Design, build, and maintain scalable features and infrastructure for AI-powered development tools
• Engage directly with developers inside and outside Anthropic to gather insights and improve user experience
• Collaborate with researchers to improve model capabilities through shared tools and evals
• Stay ahead of advancements in AI-assisted coding by experimenting with new tools, evaluating emerging techniques, and tracking enhancements to existing ones
• Contribute across the stack—from front-end UI to back-end infrastructure—to develop new features, fix bugs, and optimize performance
• Dive into possibly unfamiliar areas like Python notebooks, VS Code plug-ins, and containerized environments.

You may be a good fit if you:

• Are excited about AI-assisted coding as a tool to enhance developer productivity and creativity—not replace human ingenuity
• Spend a lot of time refining and customizing your AI workflows
• Have experience building and maintaining dev tools
• Are an expert in React development, including performance optimization, modern patterns (hooks, context, suspense), and component architecture
• Specialize in user experience engineering but are a capable full stack developer
• Have hands-on experience working with large language models and prompt engineering
• Have worked on projects with stringent safety, security and/or compliance requirements
• Care about the societal impacts and ethics of your work
• Have 5+ years of work experience

Strong candidates may also have experience with:

• Building and maintaining CLI tools
• Working in large codebases and quickly jumping in to unfamiliar development environments
• Working with container orchestration and cloud infrastructure
• Scaling TypeScript projects
• Working with alternate JavaScript runtimes like Bun and Deno

Deadline to apply: None. Applications will be reviewed on a rolling basis.

The annual compensation range for this role is listed below. 

For sales roles, the range provided is the role’s On Target Earnings ("OTE") range, meaning that the range includes both the sales commissions/sales bonuses target and annual base salary for the role.

Annual Salary:

$320,000 - $560,000 USD

Logistics

Education requirements: We require at least a Bachelor's degree in a related field or equivalent experience.

Location-based hybrid policy: Currently, we expect all staff to be in one of our offices at least 25% of the time. However, some roles may require more time in our offices.

Visa sponsorship: We do sponsor visas! However, we aren't able to successfully sponsor visas for every role and every candidate. But if we make you an offer, we will make every reasonable effort to get you a visa, and we retain an immigration lawyer to help with this.

We encourage you to apply even if you do not believe you meet every single qualification. Not all strong candidates will meet every single qualification as listed.  Research shows that people who identify as being from underrepresented groups are more prone to experiencing imposter syndrome and doubting the strength of their candidacy, so we urge you not to exclude yourself prematurely and to submit an application if you're interested in this work. We think AI systems like the ones we're building have enormous social and ethical implications. We think this makes representation even more important, and we strive to include a range of diverse perspectives on our team.