Research Engineer, Domain Scaling
Anthropic
Research Engineer, Domain Scaling at Anthropic is a full time role based in San Francisco, CA, United States. The listing states pay of $350k–$850k. It was published on 19 June 2026 and was open at last check.
| Role | Research Engineer, Domain Scaling |
|---|---|
| Company | Anthropic |
| Location | San Francisco, CA, United States |
| Employment type | Full Time |
| Pay (as listed) | $350k–$850k |
| Published | 19 June 2026 |
| Status | Open at last check |
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
The Domain Scaling team has the goal to make Claude world-class at real-world knowledge work in domains like finance, healthcare, and legal. This is a unique role that combines executing directly on applied research and data sourcing (real-world and synthetic) to improve our models. You'll own the end-to-end process of creating RL environments for new capabilities: identifying high-value tasks, designing reward signals, managing vendor relationships, and measuring impact on model performance.
Responsibilities
- Own the data strategy for knowledge work verticals end-to-end, from task sourcing through RL training
- Manage technical relationships with external data vendors, including evaluation of data quality and reward design
- Collaborate with domain experts to design data pipelines and evaluations
- Explore novel ways of creating RL envs for high value tasks
- Develop and improve QA frameworks to catch reward hacking and ensure env quality
- Run generalization experiments to measure how data strategy changes improve model capabilities
- Partner with other RL research teams and product teams to translate capability goals into training envs and evals
You may be a good fit if you
- Have experience with fine-tuning large language models for specific domains or real-world use cases
- Have experience with reinforcement learning, reward design, or training data curation for LLMs
- Are comfortable managing technical vendor relationships and iterating quickly on feedback
- Find value in reading through datasets to understand them and spot issues
- Have strong cross-functional collaboration skills
- Are passionate about making AI more useful and accessible across different industries
- Are excited about a role that includes a combination of applied research and hands-on data work
Strong candidates may also
- Have experience training production ML systems
- Have experience designing evals or benchmarks for LLMs
- Have domain expertise in a vertical where we would like to make our models more useful
- Have experience working with external vendors or technical partners
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:
$350,000 — $850,000 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.
Create your free OnJob profile to apply — we'll take you to Anthropic's application after sign-up. · Posted 19 Jun 2026.
Research Engineer, Domain Scaling at Anthropic — questions answered
What does the Research Engineer, Domain Scaling role at Anthropic pay?
The Research Engineer, Domain Scaling at Anthropic listing states pay of $350k–$850k for the San Francisco, CA, United States position. That figure is taken directly from the employer's own posting as published, not estimated or averaged from other roles.
Where is the Research Engineer, Domain Scaling role at Anthropic based?
Anthropic lists this Research Engineer, Domain Scaling role in San Francisco, CA, United States, advertised as full time work at that location. Larger employers sometimes cover several sites under one city name, so confirm the exact office with Anthropic before you apply.
Is the Research Engineer, Domain Scaling role at Anthropic still open?
The Research Engineer, Domain Scaling posting at Anthropic was open at OnJob's last check of the employer's careers page, having been published on 19 June 2026. OnJob re-checks source listings on each build and marks a role closed once it disappears, but listings can close without notice, so the employer's own page is the final word.
How do you apply for the Research Engineer, Domain Scaling role at Anthropic?
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