Staff Software Applied AI Engineer at Hackerone

HackerOne is a global leader in offensive security solutions. Our HackerOne Platform combines AI with the ingenuity of the largest community of security researchers to find and fix security, privacy, and AI vulnerabilities across the software development lifecycle. The platform offers bug bounty, vulnerability disclosure, pentesting, AI red teaming, and code security. We are trusted by industry leaders like Amazon, Anthropic, Crypto.com, General Motors, GitHub, Goldman Sachs, Uber, and the U.S. Department of Defense. HackerOne was named a Best Workplace for Innovators by Fast Company in 2023 and a Most Loved Workplace for Young Professionals in 2024.HackerOne is at a pivotal inflection point in the security industry. 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. With the industry shifting, HackerOne stands apart: 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 ValuesHackerOne 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.Staff Software Applied AI EngineerRemote Location: Seattle, WAPosition Summary At HackerOne, we're revolutionizing cybersecurity by combining human intelligence with artificial intelligence to create the world's most effective offensive security platform. As a Staff Software Engineer on our AI Platform team, you'll be at the forefront of developing cutting-edge AI-powered security solutions that protect organizations from emerging threats. You'll work directly on our AI platform, contribute to our in-platform AI security agent "Hai," and help build next-generation AI safety and security tools that serve thousands of companies including Amazon, Anthropic, GitHub, Goldman Sachs, and the U.S. Department of Defense.We're seeking an engineer who shares our mission to empower the world to build a safer internet through AI-driven security innovation. You'll harness artificial intelligence to help organizations and developers create more secure software, detect vulnerabilities faster, and defend against emerging threats. Working alongside our global community of security researchers, you'll build AI tools that make cybersecurity more accessible and effective for everyone.At HackerOne, we embrace a Flexible Work approach that gives us the freedom to do our best work while also fostering the connections and community that make us stronger. Reflecting this philosophy, this is a remote role targeted for candidates within ~50 miles of Seattle, WA. We believe this balance of proximity and flexibility gives Hackeronies the chance to occasionally come together – fostering collaboration, connection, and in-person moments that enrich our culture – while still preserving the benefits of remote work.What You Will DoBuild and evolve our autonomous AI security agent “Hai” with capabilities to plan, reason, and take secure actions including vulnerability detection, threat intelligence generation and automated security analysisBuild and enhance our AI security agent "Hai" to provide instant security insights, natural language query processing, and actionable recommendations for security teamsDevelop AI red teaming agents and frameworks that help identify vulnerabilities in large language models, generative AI systems, and applied AI deploymentsCollaborate with product teams to integrate AI capabilities that enhance vulnerability discovery, validation, and remediationCreate APIs and integrations that enable seamless interaction between AI models, security tools, and the broader HackerOne ecosystemPartner with cross-functional teams including Product, Security Research, and Customer Success to translate AI innovations into customer-facing security solutionsIntegrate emerging agentic frameworks and LLM-based orchestration tools (e.g., LangChain, Semantic Kernel, AutoGen, OpenAgents) to power stateful AI agents with access to security tools, APIs, and third-party systemsStay current with emerging AI security threats, research cutting-edge AI safety techniques, and contribute to the development of industry-leading AI security standardsMinimum Qualifications  8+ years of experience as a software engineerExperience building production-grade AI platforms and infrastructure that support multiple AI product teams and applicationsStrong hands-on experience with large language models (LLMs), generative AI, and machine learning frameworks (TensorFlow, PyTorch, Transformers) in production environmentsExpertise in AI platform engineering including model deployment, MLOps pipelines, model serving infrastructure, and shared AI services architectureSolid understanding of AI safety and alignment principles, including responsible AI development, bias mitigation, and ethical AI practicesPreferred Qualifications Experience building AI development platforms, model registries, experimentation frameworks, and tools that accelerate AI product development across organizationsFamiliarity with frameworks like ReAct, AutoGen, or Semantic Kernel for agentic orchestrationExperience in agent action routing, secure tool usage APIs, and feedback loops for autonomous agentsKnowledge of prompt engineering, fine-tuning techniques, retrieval-augmented generation (RAG), and advanced LLM optimization strategiesBackground with cloud-based AI/ML services (AWS Bedrock, GCP Vertex AI, Azure ML) and containerization technologies for AI workloadsFamiliarity with Ruby on Rails, GraphQL, React, and experience integrating AI capabilities into existing web applications and APIsCompensation Bands:Seattle$205K – $256K • Offers Equity#LI-Remote#LI-HM1Job Benefits:Health (medical, vision, dental), life, and disability insurance*Equity stock optionsRetirement plansPaid public holidays and unlimited PTOPaid maternity and parental leaveLeaves of absence (including caregiver leave and leave under CO's Healthy Families and Workplaces Act)Employee Assistance ProgramFlexible Work Stipend*Eligibility may differ by countryWe're committed to building a global team! For certain roles outside the United States, India, the U.K., and the Netherlands, we partner with Remote.com as our Employer of Record (EOR).Visa/work permit sponsorship is not available. Employment at HackerOne is contingent on a background check.HackerOne is an Equal Opportunity Employer in the terms and conditions of employment for all employees and job applicants without regard to race, color, religion, sex, sexual orientation, age, gender identity or gender expression, national origin, pregnancy, disability or veteran status, or any other protected characteristic as outlined by international, federal, state, or local laws.This policy applies to all HackerOne employment practices, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, compensation, benefits, training, and apprenticeship. HackerOne makes hiring decisions based solely on qualifications, merit, and business needs at the time.For US based roles only: Pursuant to the San Francisco Fair Chance Ordinance, all qualified applicants with arrest and conviction records will be considered for the position.