Top 600 Model performance software engineer, claude code Jobs in San Francisco, Ca

Model Performance Software Engineer, Claude Code
Anthropic —San Francisco, CA
- $405,000 - $485,000 a year
- Hybrid work
- Office
- Math
- Bachelor's degree
- Parental leave
- Flexible schedule
Product Manager, Claude Code Model Performance
Anthropic —San Francisco, CA
- $305,000 - $460,000 a year
- Hybrid work
- Mid-level
- Office
- Bachelor's degree
- Parental leave
- Flexible schedule
Staff Software Engineer, Developer Productivity (Dev Environments) - Claude Code
Anthropic —San Francisco, CA
- $405,000 - $485,000 a year
- Hybrid work
- Office
- Bachelor's degree
- Experience equivalent to degree accepted
- Parental leave
- Flexible schedule
AI Product Engineer
SAMBA TV —San Francisco, CA
- $150,000 - $200,000 a year
- Full-time
- Azure
- Mid-level
- Office
Staff+ Software Engineer, Backend
Anthropic —San Francisco, CA
- $405,000 - $485,000 a year
- Hybrid work
- Office
- 8 years
- Bachelor's degree
- Parental leave
- Flexible schedule
Staff Software Engineer, Developer Productivity (CI/CD) - Claude Code
Anthropic —San Francisco, CA
- $405,000 - $485,000 a year
- On call
- Hybrid work
- 7 years
- Writing skills
- System design
- Parental leave
- Flexible schedule
Software Engineering AMTS (College Grad)
Salesforce —San Francisco, CA
- $110,000 - $163,000 a year
- Full-time
- Computer Science
- Java
- SQL
- Paid parental leave
- Disability insurance
Software Engineer II, Backend (Reliability Platform)
Affirm —San Francisco, CA
- $146,000 - $225,000 a year
- Remote
- Bachelor's degree
- APIs
- Fair chance
- Employee stock purchase plan
- Health insurance
14d
Research Engineer, Code RL (Reinforcement Learning)
Anthropic —San Francisco, CA
- $500,000 - $850,000 a year
- Hybrid work
- Office
- Analysis skills
- Bachelor's degree
- Parental leave
- Flexible schedule
AI Backend Engineer
Klarity —San Francisco, CA
- $201,000 - $240,000 a year
- Full-time
- Engineering
- System design
- Office
- Paid parental leave
- Relocation assistance
AI Product Engineer
Rhythms —San Francisco, CA
- Full-time
- Hybrid work
- System design
- Mid-level
- Python
- Health insurance
- 401(k) matching
Software Engineer, Infrastructure
Blockit AI —San Francisco, CA
- Full-time
- System design
- Mid-level
- Office
Applied AI Claude Evangelist, Startups
Anthropic —San Francisco, CA
- $240,000 - $315,000 a year
- Weekends as needed
- Hybrid work
- 7 years
- Public speaking
- Office
- Parental leave
- Flexible schedule
Software Engineer
Neon Health —San Francisco, CA
- $132,000 - $202,000 a year
- Full-time
- System design
- Mid-level
- US work authorization
Research Engineer, Performance RL (Reinforcement Learning)
Anthropic —San Francisco, CA
- $350,000 - $850,000 a year
- Hybrid work
- Office
- Bachelor's degree
- Experience equivalent to degree accepted
- Parental leave
- Flexible schedule
Research Engineer, Knowledge Foundations
Anthropic —San Francisco, CA
- $350,000 - $850,000 a year
- Hybrid work
- 5 years
- Office
- Bachelor's degree
- Parental leave
- Flexible schedule
Staff Engineer, Datacenter Server Lifecycle
Anthropic —San Francisco, CA
- $320,000 - $405,000 a year
- Hybrid work
- Mid-level
- Office
- Java
- Parental leave
- Flexible schedule
Senior Software Engineer, AI Engineer
Midi Health —San Francisco, CA
- $170,000 - $210,000 a year
- Hybrid work
- 6 years
- Office
- Mentoring
Quick Apply
Technical Specialist, Claude Code
Anthropic —San Francisco, CA
- $180,000 - $365,000 a year
- Weekends as needed
- Hybrid work
- Office
- Bachelor's degree
- Travel
- Parental leave
- Flexible schedule
Staff Software Engineer, Safeguards Evals
Anthropic —San Francisco, CA
- $320,000 - $485,000 a year
- Hybrid work
- Office
- 8 years
- Bachelor's degree
- Parental leave
- Flexible schedule

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Model Performance Software Engineer, Claude Code

Anthropic -
San Francisco, CA

Apply Now

Job Details

$405,000 - $485,000 a year

Benefits

Parental leave
Flexible schedule

Qualifications

Task prioritization

Full Job Description

About Anthropic

Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems.

About the Role

We're looking for a Staff Software Engineer to set technical direction at the intersection of engineering and research on the Claude Code team. In this role, you'll partner directly with Anthropic's researchers and engineering leadership to shape how we measure, understand, and improve Claude's coding capabilities. You'll architect the systems, tooling, and evaluation infrastructure that determine how quickly our research can move—and you'll be accountable for the technical decisions that ripple across the team and beyond. This is a senior individual contributor role for someone who has already built and owned systems at significant scale, and who is ready to operate as a technical leader: driving architecture, mentoring engineers, and influencing the direction of Claude Code itself.

Responsibilities

Set technical direction for evaluation systems, research infrastructure, and internal tooling across the Claude Code team
Architect eval frameworks that measure model capabilities across diverse coding tasks and scale with our research roadmap
Lead the design of infrastructure that enables researchers to run experiments at scale, and make the foundational tradeoffs that shape how the team operates for years
Identify the highest-leverage engineering investments—often before anyone has asked for them—and drive them to completion
Serve as a senior technical bridge between product and research, using strong product intuition to influence which capabilities we prioritize and how we measure progress against them
Mentor and raise the bar for other engineers on the team; review designs, unblock peers, and model the engineering standards we want to scale
Partner with research leads to translate ambiguous research questions into durable engineering solutions
Own critical systems end-to-end, from architecture through production reliability, and take responsibility for their long-term health

You may be a good fit if you:

Have 10+ years of software engineering experience, with a track record of operating as a Staff or Principal engineer (or equivalent) at a high-caliber organization
Have architected and owned complex, high-stakes systems—pipelines, infrastructure, or platforms that orchestrate many components, handle significant state and logic, and serve multiple teams
Have a history of setting technical direction that others follow—through design docs, architectural decisions, or technical strategy that shaped how a team or org operates
Thrive in high-intensity environments with fast iteration cycles, and have the judgment to know when to move fast and when to invest in durability
Take full ownership of ambiguous, open-ended problems and drive them to completion with minimal direction
Are a power user of agentic coding tools with deep intuition about model capabilities and limitations
Can dive into unfamiliar technical domains—ML systems, research workflows, novel infrastructure—and get to the frontier quickly
Care deeply about correctness and reliability, and have raised engineering standards on teams you've been part of
Are energized by working at the boundary between engineering and AI research, and by the prospect of influencing both

Strong candidates may also have experience with:

Designing or scaling eval/evaluation frameworks for ML systems
Reinforcement learning infrastructure or training systems
Leading technical initiatives in high-performance, demanding environments—trading firms, quant funds, frontier research labs, or fast-moving startups where intensity and technical excellence are the norm
Research computing, scientific infrastructure, or developer platforms at scale
A strong quantitative foundation (math, physics, or related fields)
Expertise in Python and TypeScript

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:

$405,000 - $485,000 USD

Logistics

Minimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experience

Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience

Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position

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.

Your safety matters to us. To protect yourself from potential scams, remember that Anthropic recruiters only contact you from @anthropic.com email addresses. In some cases, we may partner with vetted recruiting agencies who will identify themselves as working on behalf of Anthropic. Be cautious of emails from other domains. Legitimate Anthropic recruiters will never ask for money, fees, or banking information before your first day. If you're ever unsure about a communication, don't click any links—visit anthropic.com/careers directly for confirmed position openings.

How we're different

We believe that the highest-impact AI research will be big science. At Anthropic we work as a single cohesive team on just a few large-scale research efforts. And we value impact — advancing our long-term goals of steerable, trustworthy AI — rather than work on smaller and more specific puzzles. We view AI research as an empirical science, which has as much in common with physics and biology as with traditional efforts in computer science. We're an extremely collaborative group, and we host frequent research discussions to ensure that we are pursuing the highest-impact work at any given time. As such, we greatly value communication skills.

The easiest way to understand our research directions is to read our recent research. This research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences.

Come work with us!

Anthropic is a public benefit corporation headquartered in San Francisco. We offer competitive compensation and benefits, optional equity donation matching, generous vacation and parental leave, flexible working hours, and a lovely office space in which to collaborate with colleagues. Guidance on Candidates' AI Usage: Learn about our policy for using AI in our application process.

Apply Now

Refine Your Search

model performance software engineer, claude code jobs in san francisco, ca

Model Performance Software Engineer, Claude Code

Product Manager, Claude Code Model Performance

Staff Software Engineer, Developer Productivity (Dev Environments) - Claude Code

AI Product Engineer

Staff+ Software Engineer, Backend

Staff Software Engineer, Developer Productivity (CI/CD) - Claude Code

Software Engineering AMTS (College Grad)

Software Engineer II, Backend (Reliability Platform)

Research Engineer, Code RL (Reinforcement Learning)

AI Backend Engineer

AI Product Engineer

Software Engineer, Infrastructure

Applied AI Claude Evangelist, Startups

Software Engineer

Research Engineer, Performance RL (Reinforcement Learning)

Research Engineer, Knowledge Foundations

Staff Engineer, Datacenter Server Lifecycle

Senior Software Engineer, AI Engineer

Technical Specialist, Claude Code

Staff Software Engineer, Safeguards Evals

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About Anthropic

About the Role

Responsibilities

You may be a good fit if you:

Strong candidates may also have experience with:

Logistics

How we're different

Come work with us!

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