Research Lead - Pre-training Safety

Far Ai; United States; On-site; USD 180,000 - 260,000; Full time

Job summary

FAR.AI is seeking a Research Lead for Pre-Training Safety to define and own a research program focused on shaping models’ capabilities at the source. You will lead a team of researchers, collaborate with the red team, and drive scalable ML safety investigations from data filtering to pre-training strategies.

You will mentor staff, publish findings, and work with governments and AI developers to translate research into real-world safety improvements.

Qualifications

• Strong track record in AI safety or related field.
• Experience with language-model pretraining or large-scale transformers.
• Experience leading research teams and mentoring junior researchers.
• Ability to communicate complex ideas to technical and non-technical audiences.

Responsibilities

• Define and own a research workstream with a clear theory of change.
• Lead and grow a technical staff team, directly or with an engineering co-lead.
• Lead novel research projects with ambiguous markers of progress.
• Publish findings through papers, talks, and blog posts to drive adoption.
• Mentor junior researchers and contribute to FAR.AI's research culture.
• Contribute to grant proposals and collaborations with other orgs and governments.

Skills

AI safety

Pretraining

Experimentation

Leadership

Communication

Education

Advanced degree in CS/Math/Physics or related field

Tools

Distributed training

Data filtering

Evaluation pipelines

Job description

About Us

FAR.AI is a non-profit AI research institute working to ensure advanced AI is safe and beneficial for everyone. Our mission is to facilitate breakthrough AI safety research, advance global understanding of AI risks and solutions, and foster a coordinated global response.

We're structured to support that work from early research through real-world adoption:

Independent by design. We can pursue what's most impactful based on our theory of change and share what we find publicly.

A portfolio approach. Rather than focus on one single direction, we run diverse bets across the safety stack. We take promising ideas from initial experiments to deployment, informed by red-team partnerships with frontier labs and governments.

Serious infrastructure for ambitious research. A dedicated engineering team runs our compute cluster and experiment-scaling stack, so researchers spend their time on research instead of on infra.

Setting the standard. Our events convene key decision makers; our red-team works with frontier developers and governments; and our communications inform the public. Together, this drives adoption and sets the new standard in safety.

Since our founding in July 2022, we've grown to 50+ staff, published 40+ academic papers, and convened leading AI safety events. Our work is recognized globally, with publications at premier venues such as NeurIPS, ICML including a Best Paper Honorable Mention in 2026, and ICLR, and features in the Financial Times, Nature News, Wired Magazine and MIT Technology Review. We conduct pre-deployment testing on behalf of frontier developers such as OpenAI and independent evaluations for governments including the EU AI Office and publish the AI Security Leaderboard based on our red-teaming expertise. We help steer and grow the AI safety field through developing research roadmaps with renowned researchers such as Yoshua Bengio; running FAR.Labs, an AI safety-focused co-working space in Berkeley housing 40+ members; and supporting the community through targeted grants to technical researchers.

FAR.AI is hiring a Research Lead to develop and lead our work on pre-training safety, shaping models' capabilities and internal representations at their source, rather than trying to fix them after the fact.

Our initial focus is capability control: removing harmful capabilities while preserving benign ones.

We see this as a promising way to prevent misuse of open-weight models in areas such as CBRN and cyber by removing offensive capabilities, and reducing loss-of-control risks by removing knowledge of oversight mechanisms. We will validate approaches like pre-training data filtering at scale, drive adoption of successful methods, and explore techniques such as gradient routing and unlearning.

We are scaling methods like Deep Ignorance by over an order of magnitude (>100B parameter models with >1T tokens). You will direct this work, partner with our red team to stress-test the resulting models, and analyze how well the methods scale to frontier systems.

Our research directions include:

• Improved data filtering methods, such as using data attribution (e.g. influence-based selection) or more sophisticated classifiers

• Using methods like gradient routing to isolate dual-use capabilities in components of the model (e.g. specific MoE experts)

• Training to actively remove harmful capabilities, such as interleaving next-token prediction with unlearning, as opposed to simply filtering data

• Adding synthetic data to pre-training or mid-training to shape the representations and behavior of the model

You’ll build and lead the team, set its research direction, mentor Members of Technical Staff to scale your vision, and remain hands-on enough to write code and run experiments yourself. This role offers high autonomy in an impact-driven environment, pursuing empirically grounded, scalable ML safety research.

About FAR.Research

We explore promising research directions in AI safety and scale up only those showing a high potential for impact. When an approach proves effective, we develop it into a minimum viable demonstration and work with AI developers and governments to support real-world adoption.

Our recent and ongoing research includes:

Adversarial Robustness: working to rigorously solve security problems through building a science of security and robustness for AI, from demonstrating superhuman systems can be vulnerable, to scaling laws for robustness and jailbreaking constitutional classifiers.

Mechanistic Interpretability: finding issues with Sparse Autoencoders, probing deception using AmongUs, understanding learned planning in SokoBan, and interpretable data attribution.

Red-teaming: conducting pre- and post-release adversarial evaluations of frontier models (e.g. Claude 4 Opus, ChatGPT Agent, GPT-5); developing novel attacks to support this work.

Evals: developing evaluations for new threat models, e.g. persuasion and tampering risks, and launching a new research agenda on eval awareness.

Mitigating AI deception: studying when lie detectors induce honesty or evasion, and developing approaches to deception and sandbagging.

Applied Interpretability: using interpretability to tackle concrete safety problems (better probes, backdoor detection, deception monitoring), aiming for fast feedback loops, often in collaboration with our other pods.

About the Role

Research Leads define and own a research workstream end-to-end. Day-to-day, that means:

• Articulate a research agenda with a clear theory of change for mitigating catastrophic risks from human-level or superhuman AI systems, and/or vastly increasing the upside of such systems.

• Grow and lead a team of technical staff in pursuit of this agenda, either directly or in partnership with an engineering co-lead.

• Lead novel research projects where there may be unclear markers of progress or success.

• Share your research findings through written content (e.g. academic publications, blog posts) and presentations (e.g. ML conferences, policymaker briefings) to drive adoption and change.

• Mentor and coach junior team members in research skills and ML engineering.

• Contribute to the FAR.AI intellectual environment and research culture, for example by giving feedback on early-stage proposals.

• Build a research field around your agenda through FAR.AI’s grantmaking and events, and connect it to real-world deployments through our independent testing and government advising.

This role would be a great fit if you:

• Want to work on the most impactful research directions, alongside mission-driven colleagues who’ll push them forward with you.

• Wish to pursue empirically grounded, scalable research directions that lean, technically strong teams can drive forward.

• Value the ability to speak freely. We don't censor our researchers. We just ask that you protect confidential information and make clear when you're speaking personally or on behalf of the organization.

• Want to advise and collaborate with governments, leading AI companies, and academics. We're a small organization that punches above its weight by working closely with these partners: through red-teaming, technical standards work, and research collaborations.

This role would be a poor fit if you:

• Prefer solo IC research to leading a team toward a shared agenda. Some people can do great research that way, but in this role we're looking for someone whose research direction is strong enough that other excellent researchers want to build it with them.

• Prioritize novelty and intellectual elegance over impact. We care about both — a mathematically elegant solution to AI safety would be wonderful — but when we have to choose, we choose what makes AI safer in practice.

• Can only work with the largest compute clusters available at industry labs or need to be compensated with equity in a rapidly growing startup. We offer competitive salaries and sizable compute budgets on a cluster that we manage, but if you value these things over having a positive impact on the future, then you may be more suited to a for-profit lab.

About You

To be a strong candidate for the Research Lead - Pre-Training Safety role, you likely:

• Have a strong existing research track record in AI or another highly technical subject (e.g. CS, math, physics).

• Deep experience with language-model pretraining, dataset construction, or controlled training experiments.

• Experience building large-scale pipelines for scoring, filtering, deduplicating, and sampling training corpora.

• Strong experimental judgment, including safety-capability evaluations, distribution-shift analysis, and statistically rigorous model comparisons.

• Ability to build and debug research systems directly, from classifier fine-tuning through distributed training and evaluation.

• Have either (a) a clear research agenda you'd pursue at FAR.AI, with a theory of change explaining why it’s valuable, or (b) a strong track record and a research space you'd sharpen into an agenda over your first months. We assess both paths against the same bar — depth of articulation at application is itself a signal about expected runway.

• Have led a team, mentored graduate students, or supported early-career researchers through fellowship programs. Informal leadership in flatter organizations counts, as we're more interested in experience than job titles.

• Can effectively communicate novel methods and solutions to both technical and non-technical audiences.

• Are not a new entrant to machine learning research. We don't require a PhD or specific years of experience, but you should have engaged substantively with the field — through prior research, employment, or sustained independent contribution.

It is preferable if you:

• Have an established publication record in AI safety.

• Are comfortable writing grant proposals and navigating collaborations with other organizations or external research groups.

If you are missing key leadership experience or are earlier in your career, we encourage you to consider the open Research Scientist pathway and invite you to contribute to one of our existing agendas.

Logistics

If based in the USA or Singapore, you will be an employee of FAR.AI (501(c)(3) research non-profit / non-profit CLG). Outside the USA or Singapore, you will be employed via an EOR organisation on behalf of FAR.AI or as a contractor