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Global Specialized Domain Expert Recruiter (Contractor) Labelbox · Remote, United States $40k–360k 26 days ago Remote Human Resources

Staff ML Engineer, Agent Training & Environments Labelbox · San Francisco Bay Area $250k–280k 41 days ago On-site Engineering

Cyber Security Intern Labelbox · San Francisco Bay Area $40k–85k 63 days ago On-site Engineering

Deployment Lead Labelbox · San Francisco Bay Area $200k–230k 91 days ago On-site American Dynamism

Deployment Lead Labelbox · San Francisco Bay Area $200k–230k 91 days ago On-site Developer Tools

Engineering

41 days ago

Staff ML Engineer, Agent Training & Environments

Labelbox · San Francisco Bay Area

Pay

$250k–280k

Setting

On-site

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Back to jobs Staff ML Engineer, Agent Training & Environments San Francisco Bay Area Apply Shape the Future of AI At Labelbox, we're building the critical infrastructure that powers breakthrough AI models at leading research labs and enterprises. Since 2018, we've been pioneering data-centric approaches that are fundamental to AI development, and our work becomes even more essential as AI capabilities expand exponentially. About Labelbox We're the only company offering three integrated solutions for frontier AI development: Enterprise Platform & Tools: Advanced annotation tools, workflow automation, and quality control systems that enable teams to produce high-quality training data at scale Frontier Data Labeling Service: Specialized data labeling through Alignerr, leveraging subject matter experts for next-generation AI models Expert Marketplace: Connecting AI teams with highly skilled annotators and domain experts for flexible scaling Why Join Us High-Impact Environment: We operate like an early-stage startup, focusing on impact over process. You'll take on expanded responsibilities quickly, with career growth directly tied to your contributions. Technical Excellence: Work at the cutting edge of AI development, collaborating with industry leaders and shaping the future of artificial intelligence. Innovation at Speed: We celebrate those who take ownership, move fast, and deliver impact. Our environment rewards high agency and rapid execution. Continuous Growth: Every role requires continuous learning and evolution. You'll be surrounded by curious minds solving complex problems at the frontier of AI. Clear Ownership: You'll know exactly what you're responsible for and have the autonomy to execute. We empower people to drive results through clear ownership and metrics. Role Overview Labelbox is the RL data factory for advancing frontier agent capabilities. We build the data, environments, and evaluations that frontier labs use to train and judge their agents. This role sits where training meets infrastructure. You will run the experiments and build the systems that run them: environments agents act in, verifiers that decide whether they succeeded, and the fine-tuning pipelines that turn that signal into a better model. We're looking for someone who does both halves — the engineering throughput of a strong platform engineer, and real depth in post-training agents. The bar is high: engineers with strong judgment who set technical direction, turn prototypes into reliable systems fast, and are at the frontier of agent-first engineering practice. What you'll work on RL environments for agentic tasks: task definitions, tool surfaces, state and reset semantics, reward design — and the harness that runs thousands of them in parallel. Verifiers and graders: programmatic checks, LLM judges, rubric pipelines, pass@k scoring. Deciding what "the agent succeeded" means, and making that judgment trustworthy at scale. Fine-tuning pipelines that turn evaluation signals into measurable agent improvements — SFT and RL, from data collection through training to checkpoint evaluation. Eval systems that run millions of agent trajectories to measure model and product quality. Training and serving infrastructure that scales to the throughput frontier labs need: multi-launcher orchestration, long-running job fault tolerance, cost accounting. What we're looking for As an engineer A 3+ year track record of shipping systems that customers and other engineers still rely on. Exceptional throughput, without the quality tax. You ship a lot, you review a lot, and the v1 you ship becomes the foundation the rest of the team builds on. Strong system and API design judgment. Hard architecture calls land with you: you make them, defend them under pressure, and update fast when someone else is right. You ship production code with coding agents daily. You know where they break and what it takes to make them reliable, and you use that to move the whole team faster. You build the substrate other people's work runs on — tooling, CI, harnesses, libraries — and you treat that as the job, not a distraction from it. You move fast in ambiguous, startup-pace environments, with influence over authority. Deep proficiency in Python, and comfort across the rest of the stack. As an RL post-training practitioner You have fine-tuned models for agentic tasks and made them measurably better. SFT plus at least one RL method (GRPO, PPO, DPO, or similar) in production. You have built environments agents operate in, and you know why reward and task design is where most of the difficulty actually lives. You have designed verifiers or graders for open-ended work, and you know how they get gamed. You debug training runs forensically and methodically. You reason about compute-economics. You know what an experiment costs, when a run is not worth finishing, and how to get the same signal for a tenth of the spend. You write up what you learned so it changes what the team does next. Nice to have Experience with agent harnesses and coding agents as subjects of training and evaluation. Multi-tenancy and isolation for untrusted agent execution: sandboxing, egress control, credential handling. Background in production distributed systems, ML infrastructure, or data systems at scale. Experience working directly with frontier labs or other highly technical customers. Our Technology Stack Our engineering team works with a modern tech stack designed for scalability, performance, and developer efficiency: Frontend: React.js with Redux, TypeScript Backend: Node.js, TypeScript, Python, some Java & Kotlin APIs: GraphQL Cloud & Infrastructure: Google Cloud Platform (GCP), Kubernetes Databases: MySQL, Spanner, PostgreSQL Queueing / Streaming: Kafka, PubSub Labelbox strives to ensure pay parity across the organization and discuss compensation transparently. The expected annual base salary range for United States-based candidates is below. This range is not inclusive of any potential equity packages or additional benefits. Exact compensation varies based on a variety of factors, including skills and competencies, experience, and geographical location. Annual base salary range $250,000 - $280,000 USD Life at Labelbox Location: Join our dedicated tech hub in San Francisco Work Style: Hybrid model with 3 days per week in office, combining collaboration and flexibility Environment: Fast-paced and high-intensity, perfect for ambitious individuals who thrive on ownership and quick decision-making Growth: Career advancement opportunities directly tied to your impact Vision: Be part of building the foundation for humanity's most transformative technology Our Vision We believe data will remain crucial in achieving artificial general intelligence. As AI models become more sophisticated, the need for high-quality, specialized training data will only grow. Join us in developing new products and services that enable the next generation of AI breakthroughs. Labelbox is backed by leading investors including SoftBank, Andreessen Horowitz, B Capital, Gradient Ventures, Databricks Ventures, and Kleiner Perkins. Our customers include Fortune 500 enterprises and leading AI labs. Your Personal Data Privacy: Any personal information you provide Labelbox as a part of your application will be processed in accordance with Labelbox’s Job Applicant Privacy notice. Any emails from Labelbox team members will originate from a @labelbox.com email address. If you encounter anything that raises suspicions during your interactions, we encourage you to exercise caution and suspend or discontinue communications. Apply for this job * indicates a required field First Name* Last Name* Preferred First Name Email* Phone Country* Phone* Resume/CV* Attach Attach Google Drive Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf Cover Letter Attach Attach Google Drive Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf Website LinkedIn Profile We are currently prioritizing candidates based in one of our hubs. Please select your current location from this list.* Select... 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Listed by Labelbox for a position based in the United States. Employers on this board attest they are hiring domestically.

Engineering

63 days ago

Cyber Security Intern

Labelbox · San Francisco Bay Area

Pay

$40k–85k

Setting

On-site

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Back to jobs Cyber Security Intern San Francisco Bay Area Apply Shape the Future of AI At Labelbox, we're building the critical infrastructure that powers breakthrough AI models at leading research labs and enterprises. Since 2018, we've been pioneering data-centric approaches that are fundamental to AI development, and our work becomes even more essential as AI capabilities expand exponentially. About Labelbox We're the only company offering three integrated solutions for frontier AI development: Enterprise Platform & Tools: Advanced annotation tools, workflow automation, and quality control systems that enable teams to produce high-quality training data at scale Frontier Data Labeling Service: Specialized data labeling through Alignerr, leveraging subject matter experts for next-generation AI models Expert Marketplace: Connecting AI teams with highly skilled annotators and domain experts for flexible scaling Why Join Us High-Impact Environment: We operate like an early-stage startup, focusing on impact over process. You'll take on expanded responsibilities quickly, with career growth directly tied to your contributions. Technical Excellence: Work at the cutting edge of AI development, collaborating with industry leaders and shaping the future of artificial intelligence. Innovation at Speed: We celebrate those who take ownership, move fast, and deliver impact. Our environment rewards high agency and rapid execution. Continuous Growth: Every role requires continuous learning and evolution. You'll be surrounded by curious minds solving complex problems at the frontier of AI. Clear Ownership: You'll know exactly what you're responsible for and have the autonomy to execute. We empower people to drive results through clear ownership and metrics. Role Overview As a Security Engineering Intern at Labelbox, you will work closely with our security team to strengthen and scale our enterprise security program. You will receive direct mentorship while gaining hands-on experience across cloud security, application security, SecOps, and compliance workflows. Your work will help improve the security posture of our infrastructure, services, and internal tooling. This is an hourly internship position. Your Impact Support day to day triage and analysis of incoming security issues, including operating our Vulnerability Management program. Contribute to improving access workflows in our identity and access management systems. Audit and refine access controls for core data platforms and cloud resources. Assist in strengthening CI/CD security by integrating automated checks that enforce secure development practices early in the lifecycle. Help operate and optimize our Security Information and Event Management (SIEM) platform by tuning alerts, improving log ingestion, and building lightweight automations. Participate in major internal security initiatives, such as supporting a Cybersecurity Tabletop Exercise and documenting findings. Research and evaluate enhancements to our security tool stack and contribute to related internal documentation and optimization efforts. What You Bring We are looking for a highly motivated and curious individual with a strong interest in the challenges of modern security engineering. Currently pursuing a Bachelor's or Master's degree in Cybersecurity, Computer Science, Information Technology, or a related field. A demonstrated interest in cloud security, data security, and security operations. High degree of ownership, initiative, and willingness to dive into complex technical problems. Basic understanding of cloud platforms such as GCP, AWS, or Azure, as well as foundational database concepts including SQL or data warehousing. Demonstrated ability to integrate modern AI tools and local LLM agents (such as Cursor or Claude Code) into your workflow to increase efficiency and solve technical problems faster. Strong analytical, organizational, and time management skills. Excellent written and verbal communication abilities, including clear documentation of technical findings. Curiosity, eagerness to learn, and a desire to grow through mentorship across diverse areas of security engineering. Security Engineering at Labelbox Our Security Engineering team partners closely with engineering and infrastructure teams to ensure we deliver secure, reliable, and trusted systems for our customers. We focus on building scalable security controls, driving secure development practices, and continually evolving our detection, response, and risk management capabilities. Interns on our team gain exposure to real world security challenges while contributing directly to initiatives that support Labelbox’s growth and security maturity. See our recent Blog about security at Labelbox: https://labelbox.com/blog/engineering-trust-in-an-autonomous-world/ Labelbox strives to ensure pay parity across the organization and discuss compensation transparently. The expected annual base salary range for United States-based candidates is below. This range is not inclusive of any potential equity packages or additional benefits. Exact compensation varies based on a variety of factors, including skills and competencies, experience, and geographical location. Annual base salary range $40 - $55 USD Life at Labelbox Location: Join our dedicated tech hub in San Francisco Work Style: Hybrid model with 3 days per week in office, combining collaboration and flexibility Environment: Fast-paced and high-intensity, perfect for ambitious individuals who thrive on ownership and quick decision-making Growth: Career advancement opportunities directly tied to your impact Vision: Be part of building the foundation for humanity's most transformative technology Our Vision We believe data will remain crucial in achieving artificial general intelligence. As AI models become more sophisticated, the need for high-quality, specialized training data will only grow. Join us in developing new products and services that enable the next generation of AI breakthroughs. Labelbox is backed by leading investors including SoftBank, Andreessen Horowitz, B Capital, Gradient Ventures, Databricks Ventures, and Kleiner Perkins. Our customers include Fortune 500 enterprises and leading AI labs. Your Personal Data Privacy: Any personal information you provide Labelbox as a part of your application will be processed in accordance with Labelbox’s Job Applicant Privacy notice. Any emails from Labelbox team members will originate from a @labelbox.com email address. If you encounter anything that raises suspicions during your interactions, we encourage you to exercise caution and suspend or discontinue communications. Get new jobs like this in your inbox We'll email you when Labelbox posts a job like this one. Create alert Apply for this job * indicates a required field First Name* Last Name* Preferred First Name Email* Phone Country Phone Resume/CV Attach Attach Google Drive Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf Cover Letter Attach Attach Google Drive Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf LinkedIn Profile Website Submit application Powered by

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