Staff Software Engineer, Applied AI
Staff AI engineer at HackerOne architecting the autonomous 'Hai' security agent — building agentic LLM systems (orchestration, RAG, memory, AI red-teaming) for vulnerability discovery and remediation. Requires deep production LLM/ML experience (TensorFlow, PyTorch, MLOps); hybrid-remote role based near Seattle, WA.
- Compensation
- $200K–$256K / yr
- Location
- Seattle
- Work setup
- Remote
- Seniority
- Staff
- Employment
- Not specified
- Experience
- 8+ years
- Category
- Ai engineering
- Posted
Skills
Must have
- 8+ years as a software engineer, including production-grade AI platforms and infrastructure
- Able and willing to come to the office once per week (typically Thursdays)
- Proven expertise in LLMs, generative AI, and ML frameworks (TensorFlow, PyTorch, Transformers) in production
- Hands-on AI platform engineering: model deployment, MLOps pipelines, model serving infrastructure, shared AI services architecture
- Experience building systems supporting multiple AI product teams and applications
- Solid understanding of AI safety and alignment principles, responsible AI, bias mitigation, ethical AI
Nice to have
- Experience building AI development platforms, model registries, experimentation frameworks
- 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, RAG, and advanced LLM optimization
- Experience with cloud AI/ML services (AWS Bedrock, GCP Vertex AI, Azure ML) and Docker/Kubernetes for AI workloads
- Familiarity with Ruby on Rails, GraphQL, and React, integrating AI into production web apps and APIs
Full description
HackerOne is a global leader in Continuous Threat Exposure Management (CTEM) and the only solution provider that pairs the simultaneous trust of the Fortune 500 and the world's largest community of security researchers to secure the AI-native enterprise. The H1 Platform unites agentic AI solutions with security researchers ingenuity to continuously discover, validate, prioritize, and remediate exposures across code, cloud, and AI systems. Through solutions such as agentic and human offensive security testing, AI red teaming, code security, validation, and remediation, HackerOne delivers measurable, continuous reduction of cyber risk for enterprises. Industry leaders, including Anthropic, , General Motors, Goldman Sachs, Lufthansa, Uber, UK Ministry of Defence, and the U.S. Department of Defense, trust HackerOne to safeguard their digital ecosystems. HackerOne was recognized in Gartner’s Emerging Tech Impact Radar: AI Cybersecurity Ecosystem report for its leadership in AI Security Testing.
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.
Staff Software Engineer, Applied AI
Remote Location: Seattle, WA
Position Summary
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.
You will build intelligent security agents that reason, act, and learn — helping security teams identify, validate, and remediate vulnerabilities faster than ever. 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.
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 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. Must be able and willing to come to the office once per week (typically Thursdays).