Senior Security Engineer- USA

Overview About The Role Hopper's Security team is small by design and consequential by impact. As a Senior Security Engineer, you'll own the tooling, automation, and processes that keep our applications secure across their entire lifecycle, building the systems that make security invisible to developers and unavoidable by default. This is a builder's role in every sense: you'll write code, ship tools, and use AI as a core part of how you work — not as a novelty, but as a force multiplier. What Would Your Day-to-day Look Like Own and evolve our vulnerability management program with a focus on application security — container images, dependencies, code scanning, and runtime detection Build and maintain security tooling that integrates directly into CI/CD pipelines and developer workflows, so security happens automatically rather than as a gate Use AI extensively to write code faster, automate analyses that would otherwise require manual review, and build intelligent tooling that scales beyond what a small team could achieve manually Assess and improve how we leverage available telemetry across our systems Work directly with engineering teams to influence secure development practices — not by writing standards and documents, but by shipping tools and defaults that make the secure path the easy path Investigate and respond to security findings when needed, but spend more of your time building systems that prevent and detect issues than manually chasing them Adapt quickly as priorities shift — our team is agile and tomorrow's challenge may look different from today An ideal candidate has At least 5 years experience software and/or platform engineering, with the ability to design, build, and maintain production-quality tools Deep experience in application security and vulnerability management — you understand CVEs, dependency risks, container security, and SDLC integration, and you have opinions about what's worth fixing and what's noise Hands-on experience with cloud infrastructure, ideally GCP/GKE or equivalent, with the ability to adapt to our stack A demonstrated habit of using AI tools — coding assistants, LLMs — as a core part of how you build and analyse, not an occasional shortcut A bias toward automation — when you see a repetitive manual task, your instinct is to write a tool, not a runbook Comfort with ambiguity and ownership — you'll often be the only person on a problem and will need to make judgment calls on priority, approach, and scope without waiting for direction Experience influencing engineering culture around security, knowing how to make developers care without slowing them down Strong written and verbal communication skills, including the ability to articulate our security posture clearly to customers when needed Perks And Benefits Of Working With Us Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages Unlimited PTO Carrot Cash travel stipend Access to co-working space on demand through FlexDesk and a work-from-home stipend Generous parental leave Entrepreneurial culture where pushing limits and taking risks is everyday business Open communication with management and company leadership Small, dynamic teams with big impact 100% employer paid Medical, Dental and Vision coverage for employees Access to Disability & Life insurance Health Reimbursement Account (HRA) and DCA/FSA with 401k plan About Hopper Hopper aims to be the leading travel platform globally, powering Hopper’s mobile app, website and HTS (Hopper Technology Solutions). By leveraging data and AI, Hopper combines travel offerings with fintech solutions to bring transparency, flexibility and savings to travelers. The Hopper platform serves hundreds of millions of travelers and has a growing B2B division through HTS with partners including Capital One, Air Canada, Nubank, and others. #J-18808-Ljbffr The Grace Hopper Program at Fullstack Academy