HackerOne

HackerOne

Staff Software Engineer, Applied AI

Seattle · Staff+ · Contract

No sponsorship$230k-$280kDetected 147 days ago
RubyReactRailsAWSGCPAzureDockerKubernetesPlatform EngineeringGraphQLMachine LearningTensorFlowPyTorchNLPLLMsRAGAgentic AIMLOpsA/B TestingSensorsResearchLeadershipCollaborationProblem Solving

About the role

  • At HackerOne, we're advancing a new era of AI-powered offensive security.
  • As a Staff AI Engineer, you'll help shape the evolution of our autonomous HAI platform, driving the integration of advanced AI and agentic frameworks into HackerOne's products.
  • This is a high-impact technical role, reporting to the VP, AI Engineering, where you will architect the systems and frameworks that power the next generation of AI-driven vulnerability discovery.

Responsibilities

  • Architect and enhance our autonomous security agent "Hai," building intelligent systems capable of natural-language reasoning, vulnerability detection, and actionable recommendations, all grounded in an AI-First mindset.
  • Build components and services that integrate agentic AI design patterns-such as orchestration, memory systems, RAG, long-horizon tasks, and LLM-based models-into the HackerOne platform, applying an AI-First approach to improve vulnerability detection and security automation.
  • Partner across Product, Security Research, and Engineering to introduce AI capabilities into the broader HackerOne ecosystem. As the company evolves rapidly, bring clarity and stability to shifting requirements by demonstrating strong Change Agility.
  • Design and implement AI red-teaming agents and frameworks that proactively surface weaknesses in LLMs, generative-AI systems, and applied AI deployments, using First Principles Problem Solving to break problems down and build durable, foundational solutions.
  • Build APIs and integrations that enable seamless interaction between AI models, security tools, and the broader HackerOne platform, ensuring security, scalability, and interoperability across systems.
  • Offensive security is no longer optional - it is the standard for forward-thinking companies that want to build trust and resilience in a world where AI-driven innovation and adversaries are moving faster than ever.
  • You will build intelligent security agents that reason, act, and learn - helping security teams identify, validate, and remediate vulnerabilities faster than ever.
  • We're committed to building a global team!

Requirements

  • 8+ years of experience as a software engineer, including deep experience building and maintaining production-grade AI platforms and infrastructure.
  • Must be able and willing to come to the office once per week (typically Thursdays).
  • Strong hands-on experience in AI platform engineering, including model deployment, MLOps pipelines, model serving infrastructure, and shared AI services architecture.
  • Must be able and willing to come to the office once per week on Thursdays.

Nice to have

  • Familiarity with ReAct, AutoGen, or Semantic Kernel for agentic orchestration and multi-agent collaboration.
  • Experience in agent action routing, secure tool usage APIs, and feedback loops for autonomous agents.
  • Knowledge of prompt engineering, fine-tuning, retrieval-augmented generation (RAG), and advanced LLM optimization strategies.
  • Experience with cloud-based AI/ML services (AWS Bedrock, GCP Vertex AI, Azure ML) and containerization technologies (Docker, Kubernetes) for AI workloads.
  • Familiarity with Ruby on Rails, GraphQL, and React, and experience integrating AI capabilities into production web applications and APIs.
  • Compensation Bands:
  • SEATTLE, WA; BOSTON, MA; WASHINGTON, DC; OR AUSTIN, TX
  • Employee Assistance Program

Skills

  • HackerOne is a global leader in Continuous Threat Exposure Management (CTEM).

Compensation

  • Compensation Bands:

Benefits

  • Health (medical, vision, dental), life, and disability insurance*
  • Equity stock options
  • Retirement plans
  • Paid public holidays and unlimited PTO
  • Paid maternity and parental leave
  • Leaves of absence (including caregiver leave and leave under CO's Healthy Families and Workplaces Act)
  • This policy applies to all HackerOne employment practices, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, compensation, benefits, training, and apprenticeship.

Company info

  • we combine the ingenuity of the largest security research community with a best-in-class AI-powered platform, trusted by the world's top organizations.
  • HackerOne Values
  • HackerOne is dedicated to fostering a strong and inclusive culture.
  • HackerOne is Customer Obsessed and prioritizes customer outcomes in our decisions and actions.
  • We Default to Disclosure by operating with transparency and integrity, ensuring trust and accountability.
  • Employees, researchers, customers, and partners Win Together by fostering empowerment, inclusion, respect, and accountability.
  • SEATTLE, WA; AUSTIN, TX; BOSTON, MA; WASHINGTON, DC
  • 1 DAY ONSITE PER WEEK
  • HackerOne is at a pivotal inflection point in the security industry.

Visa & Work Authorization

  • Visa/work permit sponsorship is not available.
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This listing is sourced directly from HackerOne's careers page and normalized into a canonical job model.