Member of Technical Staff, Runway
Trust & Safety Engineer
$240-290k
AI-powered creativity tools
Be an early applicant
AI-powered creativity tools
201-500 employees
Be an early applicant
$240-290k
201-500 employees
Company mission
To ensure that anyone anywhere can tell their stories.
Role
Who you are
- The ideal candidate is a strong generalist engineer who's comfortable context-switching between writing Python evals, building TypeScript tooling, querying ClickHouse for abuse signals, and debugging AWS/GCP infrastructure
- 3+ years of experience in software engineering, with production experience in Python or TypeScript
- A proactive, ownership-oriented mindset - you'll own systems end-to-end (infrastructure, monitoring, logging, metrics, incident response) and be responsible for identifying risks, not just responding to tickets
- Comfort working across the stack - from writing model evaluation scripts to building internal tooling to debugging infrastructure issues in AWS or GCP
- Experience with data pipelines or analytics infrastructure (we use ClickHouse heavily for abuse detection and policy enforcement signals)
- Ability to translate ambiguous, fast-evolving policy requirements into concrete technical solutions - you'll often be defining the approach, not following an existing playbook
- Strong written communication skills; you'll work closely with legal, policy, and product teams to document safety decisions and explain technical tradeoffs
- Humility and open mindedness; at Runway we love to learn from one another
What the job involves
- We're looking for a Trust & Safety Engineer to help ensure Runway's generative AI models have a positive impact as they reach millions of users
- You'll be embedded across product, research, and policy teams — serving as a core safety partner from early design through post-launch monitoring
- This role sits at the intersection of model safety and platform infrastructure. You'll design and run red teaming systems to surface harmful outputs before they reach production, build tooling to enforce content policies at scale, and help define safety strategies for capabilities that don't exist yet
- The work is high-ambiguity: you'll often be creating the playbook, not following one
- You'll collaborate most closely with legal and policy to translate evolving guidelines into technical controls, with product and API teams to ship safety features, and with ML research when evaluating new model behaviors
- Please note that this role will occasionally involve handling sensitive content, including content that is sexual, violent, or otherwise disturbing
- Our API for content moderation and policy enforcement is written in TypeScript, and runs in ECS containers on AWS Fargate. We leverage multiple AWS-native components, such as S3, CloudFront, Lambda, Kinesis, and SQS, as building blocks of our infrastructure
- Our inference backend — where safety checks run inline with generation - is written in Python (PyTorch), and is deployed across multiple clusters. We heavily leverage LLMs - both Anthropic Claude and Google Gemini - as part of our safety and moderation systems. We invest in Prometheus and Grafana for monitoring, and Terraform to manage our infrastructure
- Serve as a core safety partner embedded across product and research teams, providing Trust & Safety engineering support for all launches - from early design review through post-launch monitoring
- Build and maintain safety infrastructure that ensures Runway's models have a positive impact on the world as they reach millions of users
- Design, execute, and continuously improve red teaming systems to proactively surface model safety issues, such as harmful content generation, filter bypasses, and policy-violating outputs, before they reach production
- Translate ambiguous, fast-evolving T&S challenges into concrete technical solutions, often without an existing playbook; comfort with navigating uncertainty and proposing novel approaches is essential
- Improve the performance, reliability, and code quality of our codebases
Our take
Runway is revolutionising content creation and video editing with machine learning, harnessing the expansive capabilities of web-based tools. At the forefront of this transformation, the startup offers a suite of AI-powered editing tools tailored for designers, artists, and creators, setting itself apart in an industry dominated by enterprise-focused software solutions.
The company has rapidly gained recognition among some of the world's largest brands, including R/GA, New Balance, Google, and IBM, by appealing directly to creative professionals. This approach has not only solidified Runway's position in the market but also facilitated its integration into the design curricula of esteemed institutions such as NYU, RISD< and MIT.
In a testament to its growing influence and success, Runway achieved unicorn status in 2023 following a landmark $100M funding round, which valued the company at $1.5B. This milestone not only reflects investor confidence but also positions Runway to expand its innovative tools and further democratise access to advanced video editing capabilities globally.
Steph
Company Specialist at Welcome to the Jungle
Insights
112% employee growth in 12 months
Company
Funding (last 2 of 8 rounds)
Feb 2026
$315m
SERIES E
Apr 2025
$308m
SERIES D
Total funding: $861.5m
Company benefits
- 100% medical, dental, and vision coverage: We cover 100% of medical, dental and vision for our US employees AND their dependents. Based on the plans selected, we have complimentary mental health benefits and a free One Medical membership
- Unlimited days of PTO: We have unlimited PTO with a minimum of 15 days a year. We also have a paid sabbatical program after employees have been with Runway for 3 years and again after 5 years. And of course, we can't forget about Summer Fridays
- 401k Matching, 3% matching: Plan for the future! We provide a 3% 401K match for our US based employees
- Remote $250 stipend: All of our employees outside of commuting distance to the office, can expense up to $250 per month on co-working spaces, lunch or groceries, and internet connection
- Donations supporting our community: Beyond our employees, we have a commitment to our communities. Every quarter, Runway employees choose an organization for the company to support through a donation
- Custom setup, tech setup stipend: In addition to the choice of laptop, all employees get a stipend to customize their tech set up as they want
- Parental leave for all parents: We offer 16 weeks of fully paid parental leave plus a gradual return to work plan. This coverage is for all parents, regardless of how a child is brought into the family
- L&D $600 stipend: We’re investing in our employees’ long term growth by giving every employee $600 per year to spend on their personal or professional development. That means conferences, courses, and books, oh my!
- Wellness $600 stipend: We set ambitious goals and work hard to achieve them, so we believe it’s important to invest in employees’ mental and physical health. The $600 annual wellness stipend can be used for anything from therapy sessions to gym memberships
Company HQ
Civic Center, New York, NY
Leadership
Anastasis Germanidis
(Co-Founder & CTO)Trained as a Backend Engineer, they have held roles at Zocdoc, Chartbeat, and Quantcast as well as working as a Machine Learning Researcher in Computer Vision for IBM.
Alejandro Matamala-Ortiz
(Co-Founder & CDO)Previously co-founded Deenty, an online booking platform for dentist appointments.
Cristóbal Valenzuela
(Co-Founder & CEO)Worked as a Researcher at New York University from 2018 to 2019. Also spent time as a Professor at the UAI School of Design.
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