--- title: 'Research Engineer / Scientist, Reinforcement Learning at Harvey' canonical: 'https://feeny.ai/job/research-engineer-scientist-reinforcement-learning-harvey-remote-xyjhtcxtey6q' type: 'job' last_seen: '2026-11-02' --- # Research Engineer / Scientist, Reinforcement Learning at Harvey - **Company:** [Harvey](https://feeny.ai/companies/harvey) - **Location:** Remote - **Employment:** full-time - **Work type:** remote - **Posted:** 2026-10-30 - **Last confirmed live:** 2026-11-02 - **Apply:** https://jobs.ashbyhq.com/harvey/30df72cf-ee68-4194-864e-47745ca8b6e0 ## Job description ## Why Harvey At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come. This is a rare chance to help build a generational company at a true inflection point. We have strong product-market fit and world-class investor support. We’re scaling fast and defining a new category in real time. The work is ambitious, the bar is high, and the opportunity for growth — personal, professional, and financial — is unmatched. Our team moves fast, takes ownership, and is deeply committed to the mission — operating with intensity, staying close to our customers, and pushing each other for excellence. We live by three values: Decisiveness, Simplicity, and Job's Not Finished. We act quickly on clear judgment over perfect information, we believe simplicity is what scales, and we're never satisfied with where we are. If you want to do the best work of your career alongside people who share that drive, we'd love to build with you. At Harvey, the future of professional services is being written today — and we’re just getting started. ## Role Overview As a Member of Technical Staff, Modeling in Harvey Research, you’ll own how we adapt and improve leading open-weight models for legal work. We recently post-trained our first model built for legal work, and we’re now building the team to scale up our post-training efforts. You’ll own the post-training recipe across SFT and RL, including reward design and verification for challenging, semi-verifiable legal tasks. You’ll help set the research direction and carry ideas from experiments through training runs to models used by customers. You’ll join a small, high-bar team of hands-on engineers and researchers, where each person owns a large part of the work. We’re looking for research engineers and scientists who have gotten training runs working at scale, are immersed in RL for language models, and want their work to reach users quickly. Learn more about our work at [harvey.ai/research](http://harvey.ai/research). ## What You'll Do - Own and pursue a research agenda to improve model capability on long-horizon legal reasoning and agentic workflows. - Design and run post-training experiments across SFT and RL, building on leading open-weight models. - Develop reward functions and verifiers for semi-verifiable tasks, including rubrics, learned preference models, and expert preference data, and study where they break. - Run and debug training at scale, addressing divergence, reward hacking, and instability. - Build and use rigorous evals to track improvements and decide what ships. - Design, implement, test, and debug code across our research stack. ## What You Have - Hands-on experience post-training LLMs with SFT and RL, including preference optimization, and direct ownership of training runs and results. - Deep ML fundamentals and experience getting distributed training runs working reliably. - Strong engineering skills in Python, with production-quality code and end-to-end system ownership. - Research experience in RL for language models or reward modeling, with the ability to move quickly from experiments to shipped improvements. Publications welcome, not required. We are hiring for this role across multiple levels. ## Compensation $230,000 - $450,000 USD Depending on your location, an Applicant Privacy Notice may apply to you. You can find all of our Applicant Privacy Notices [here](https://harveyai.notion.site/Harvey-Candidate-Privacy-Notices-319ac3fcdd7a803bb807d5094f249922?pvs=74). ## #LI-DZ1 Harvey is an equal opportunity employer and does not discriminate on the basis of race, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition, or any other basis protected by law. We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made by emailing accommodations@harvey.ai ## About Harvey ## Company Overview - **One-liner**: Harvey builds domain-specific AI software for legal and professional services, enabling law firms and in-house teams to automate research, contract analysis, due diligence, and complex workflows. - **Entity Type**: Private (backed by leading venture capital firms) - **Headquarters**: San Francisco, California, United States - **Founded**: 2022 - **Founders**: Winston Weinberg (CEO), Gabriel Pereyra (President) ## Core Business - **Primary industry**: AI software for legal and professional services (LegalTech) - **Target customers**: B2B – large law firms (AmLaw 100), in-house legal teams at Fortune 500 enterprises, mid-sized firms, and professional service networks across 60+ countries. - **Mission or purpose statement**: To enable legal and professional services teams to focus on high-value work by providing a secure, expert AI platform that handles research, drafting, and complex workflows. ## Products & Services - **Harvey Assistant**: Ask questions, analyze documents, and draft faster with domain-specific AI (SaaS). - **Harvey Vault**: Securely store, organize, and bulk-analyze legal documents (SaaS). - **Harvey Knowledge**: Research complex legal, regulatory, and tax questions across domains (SaaS). - **Harvey Agents**: Purpose-built agents that execute complex legal work end-to-end (SaaS). - **Harvey Contract Intelligence**: Surface insights, strengthen negotiations, and accelerate reviews (SaaS). - **Harvey Command Center**: Analytics, benchmarking, and agentic insights for leading AI transformation (SaaS). - **Harvey Mobile**: Mobile access to stay productive from anywhere (SaaS). - **Harvey Shared Spaces**: Collaborate with legal teams across organizations in secure shared workspaces (SaaS). - **Harvey Ecosystem**: Integration with existing tools to ground answers in trusted sources (API/platform). ## Market Standing - **Valuation/Market Cap**: Not publicly disclosed (company is private). - **Key Metric**: Annual Recurring Revenue (ARR) – reported in press but exact figure not disclosed; strong growth implied by 1,500+ customers and rapid hiring. - **Notable Investors/Partners**: Sequoia, Kleiner Perkins, GV (Google Ventures), OpenAI Startup Fund, Coatue, Andreessen Horowitz, EQT. - **Growth Signals**: - Named Time100 Most Influential Companies (2025). - LinkedIn Top 50 Startup of 2025. - CNBC Disruptor 50 List. - 1,500+ customers across 60+ countries, including AmLaw 100 firms. - Headcount: ~300 employees (as of mid-2025), with aggressive hiring (254 active job postings). - Office expansion: San Francisco, New York City, London. ## Competitive Advantages - **Domain specialization**: AI models trained specifically for legal and professional services, not generic LLMs. - **Enterprise security**: SOC 2 Type II, ISO 27001/27701/42001, GDPR, CCPA compliance – meeting law firm security requirements. - **Deep investor backing**: World-class VC network provides strategic guidance and access. - **Strong product‑market fit**: Rapid adoption by top-tier law firms and in-house teams, with high switching costs due to embedded workflows. - **First‑mover in agentic legal AI**: Purpose‑built agents execute end‑to‑end tasks, differentiating from simple document Q&A tools. ## Strategic Focus - **Customization, collaboration, and simplicity**: Helping teams embed expertise into Harvey, collaborate across firms, and reduce complexity via agentic workflows. - **Expansion beyond legal**: Long‑term ambition to transform professional services broadly (consulting, accounting, etc.). - **Product innovation**: Continued investment in agentic AI, mobile access, and ecosystem integrations. - **Global growth**: Scaling sales and engineering teams in existing hubs and expanding into new markets. ## Why Work Here - **Culture**: Fast‑paced, collaborative, ambitious. Values include **Decisiveness** (“take the square root of the weather” – avoid overanalysis), **Simplicity**, and **Job’s Not Finished** (continuous improvement). - **Work environment**: Hybrid – 3+ days per week in office for roles based in San Francisco, New York City, or London. Some fully remote positions available (clearly marked). - **Benefits**: Comprehensive health/dental/vision insurance, 401(k) match, paid parental leave (immediately eligible), annual professional development stipend, in‑office daily lunch, and more. - **Growth opportunities**: Rapidly scaling (~300 employees, 254 open roles) provides internal mobility and ownership of impactful projects. - **Engineering culture**: Strong blend of AI research (DeepMind background) and legal domain expertise. CTO Siva Gurumurthy recently joined. Emphasis on building secure, enterprise‑grade products. ## Sources 1. [harvey.ai](https://www.harvey.ai/) 2. [harvey.ai/company](https://www.harvey.ai/company) 3. [harvey.ai/blog/landing-a-job-at-harvey](https://www.harvey.ai/blog/landing-a-job-at-harvey) 4. [linkedin.com/company/harvey-ai](https://www.linkedin.com/company/harvey-ai) 5. [jobs.ashbyhq.com/harvey](https://jobs.ashbyhq.com/harvey) ## Other roles at Harvey - [Sales Manager, Enterprise](https://feeny.ai/job/sales-manager-enterprise-harvey-london-j5gatr2vpe70) — London, United Kingdom - [Account Executive, Enterprise, Asset Management](https://feeny.ai/job/account-executive-enterprise-asset-management-harvey-munich-fqq9kyqznx1b) — Munich, Germany - [Technical CX Specialist, EMEA](https://feeny.ai/job/technical-cx-specialist-emea-harvey-dublin-fjk9rb51m9va) — Dublin, Ireland - [Technical CX Specialist, EMEA](https://feeny.ai/job/technical-cx-specialist-emea-harvey-london-pbzvg2x5xbr2) — London, United Kingdom - [Strategic Account Executive, DACH](https://feeny.ai/job/strategic-account-executive-dach-harvey-munich-8cnt5h58m5s7) — Munich, Germany - [Legal Engineer](https://feeny.ai/job/legal-engineer-harvey-seoul-tpn0v4xnpsmq) — Seoul, South Korea - [Research Engineer / Scientist, Reinforcement Learning](https://feeny.ai/job/research-engineer-scientist-reinforcement-learning-harvey-london-ckrwbea9hhmr) — London, United Kingdom - [Research Engineer, Infrastructure](https://feeny.ai/job/research-engineer-infrastructure-harvey-london-1z952jcp00wk) — London, United Kingdom - [Research Engineer, Infrastructure](https://feeny.ai/job/research-engineer-infrastructure-harvey-remote-v2w0w057c7ar) - [Research Engineer / Scientist, Data & Evals](https://feeny.ai/job/research-engineer-scientist-data-evals-harvey-remote-avppabwdx6wn)