• Designing, building, and maintaining features across the full stack of an internal trading platform • Working primarily with: - **TypeScript (Node.js & React)** - Monorepo tooling, GitHub, GitHub Actions - Jest, Playwright - Redis, MS SQL, WebSockets - Docker, Kubernetes - Observability tooling (Grafana, Prometheus, SonarQube) • Taking end-to-end ownership of features from design through to production • Collaborating closely with platform / DevOps engineers on build pipelines, observability, and operational concerns • Communicating directly with the client to clarify requirements and propose solutions • Contributing to and improving automated testing practices • Participating in peer code reviews and helping maintain high engineering standards across the team • Using** LLM/AI enabled development tools and techniques **(with access to the latest OpenAI/Anthropic/etc. models) as part of day-to-day development

• Develop Full-Stack Solutions: Design, implement, and maintain high-quality front-end and back-end code to support dynamic, scalable, and reliable applications. • Code Ownership: Take end-to-end responsibility for the codebase, from initial development through to deployment and maintenance, ensuring quality and efficiency. • Customer Engagement: Work directly with customer teams, bringing expertise and guidance to optimize solutions and address unique challenges. • Innovative Solution Design: Collaborate with both internal and external stakeholders to identify opportunities for innovation and design solutions that push boundaries.

• Define and evolve the architectural vision for HackerOne’s platform and core systems, ensuring scalability, reliability, and performance. • Partner with Product, Platform, and Security teams to translate long-term business and product goals into actionable architectural strategies. • Collaborate with Principal and Distinguished Engineers to align on technical direction, establish shared standards, and evolve HackerOne’s system design principles. • Lead major cross-team initiatives that modernize our architecture, improve observability, and reduce complexity across our systems. • Mentor and guide engineering teams, fostering a culture of technical excellence, knowledge sharing, and continuous improvement. • Evaluate and integrate emerging technologies, including AI, GenAI, and LLM-driven architectures, to enhance the intelligence and effectiveness of our platform. • Drive architectural governance and documentation, ensuring long-term maintainability and transparency in decision-making. • Communicate architectural direction clearly to both technical and non-technical stakeholders, building alignment through clarity and evidence. • Within your first 30–60–90 days, you’ll move from deeply understanding our systems and architecture, to identifying strategic opportunities, to leading architectural initiatives that impact teams company-wide.

• Automate the complex, multi-party coordination of event planning • Solve critical engineering problems by building tools to capture and structure expert domain knowledge • Design and build a product for event planning experts to craft, test, and scale complex prompt chains and agentic workflows