Software Engineer, Applied AILocation: Seattle, WA; Austin, TX; Boston, MA; Washington, DC1 day onsite per weekPosition SummaryAt HackerOne, we're revolutionizing offensive security by combining human intelligence with artificial intelligence to help organizations build a safer internet. As an AI Engineer on our AI Platform team, you will contribute to the development of next-generation AI security capabilities, including our in-platform AI security agent, Hai. You will implement AI-powered features that enhance vulnerability discovery, improve security analysis workflows, and expand how thousands of customers detect and respond to emerging threats.
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; Boston, MA; Washington, DC; or Austin, TX. 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 on Thursdays.
Primary ResponsibilitiesSuccess in the AI Engineer role will be accomplished by delivering on the responsibilities below in alignment with the Values and Talent Principles that define how we work at HackerOne.
- Apply an AI First mindset by building and integrating AI capabilities such as LLM-powered workflows, RAG pipelines, or orchestration components that enhance vulnerability detection and security automation.
- Demonstrate First Principles Problem Solving by breaking down AI and security challenges into clear components, identifying core assumptions, and implementing simple, maintainable solutions.
- Use Data-Driven Decision Making to evaluate model performance, test hypotheses, analyze telemetry, and iterate on features based on measurable impact.
- Practice Change Agility by adapting to evolving AI frameworks, product requirements, and security considerations while maintaining delivery momentum.
- Contribute to the development of our AI security agent, Hai, implementing features that enable natural language insights, reasoning workflows, and secure model interactions.
- Build and maintain APIs and services that enable secure interactions between AI models, internal systems, and third-party platforms.
- Partner cross-functionally with Product, Security Research, and Customer Success to clarify requirements, translate user needs into technical tasks, and deliver reliable solutions.
- Stay current with emerging AI and AI security trends, sharing learnings with the team and incorporating relevant advancements into your work.
Minimum Qualifications- 3+ years of experience as a software engineer, with hands-on experience building production systems
- Experience integrating LLMs or generative AI models into applications
Hands-on experience with ML frameworks such as PyTorch, TensorFlow, or HuggingFace Transformers - Must be able and willing to come to the office once per week (typically Thursdays)
Preferred Qualifications- Familiarity with agentic frameworks such as ReAct, AutoGen, LangChain, or Semantic Kernel
- Experience with RAG architectures, prompt engineering, fine-tuning, or LLM evaluation techniques
- Exposure to cloud AI/ML services (AWS Bedrock, GCP Vertex AI, Azure ML)
- Familiarity with full-stack technologies such as Ruby on Rails, GraphQL, or React for integrating AI features into production systems
Compensation Bands:
Seattle, WA; Boston, MA; Washington, DC; or Austin, TX$166K - $203K • Offers Equity
#LI-HM1
Job 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)
- Employee Assistance Program
*Eligibility may differ by country 
