Lead Frontend Software Engineer, Corelight
Fleet
$170-220k
+ Equity
Network & cloud security
Be an early applicant
Network & cloud security
201-500 employees
Be an early applicant
$170-220k
+ Equity
201-500 employees
Company mission
To help defend the world's most sensitive, mission-critical organisations.
Role
Who you are
- Professional Experience: 8+ years of professional software development experience, with a definitive track record in senior, staff, or lead frontend engineering roles
- Frontend Mastery: Elite-level expertise in TypeScript, React, and the modern frontend ecosystem (advanced state management, build tooling, and modular architecture)
- Design Systems: Proven experience building, maintaining, or significantly scaling an enterprise-grade design system or shared component library
- Data & API Proficiency: Strong experience consuming REST and GraphQL APIs to power data-heavy interfaces, with comfort parsing formal specifications like OpenAPI
- Testing Rigor: Deep familiarity with modern testing frameworks across unit, component, and end-to-end (E2E) automation layers to prevent production regressions
- Web Accessibility: A verified commitment to building inclusive, WCAG-compliant accessible user interfaces
- Cross-Functional Background: Extensive experience collaborating alongside UX designers, product managers, and backend engineers
- Education: Bachelor's degree in Computer Science, Software Engineering, or a related technical field (or equivalent enterprise professional experience)
- Preferred Experience: Enterprise security background, network product familiarity, or experience running technical hiring loops for scaling frontend teams
- Core Values Alignment: You natively embody "low ego results," "tireless service," and "applied curiosity" in your daily engineering practices and team interactions
- Product & User Empathy: You are passionate about building interfaces that simplify dense, complex data representations into intuitive workflows for security defenders
- Systems Thinking: You look beyond isolated components to understand how state, data flow, and frontend architecture tightly integrate across a massive, enterprise-scale application
- Decisive Problem Solving: You comfortably navigate ambiguity, balance conflicting technical constraints, and make rapid, high-impact architectural decisions
- Strategic Communication: You possess strong written and verbal communication skills used to influence product direction, align distributed teams, and articulate technical trade-offs clearly
What the job involves
- As a Lead Software Engineer on our Fleet team, you'll set the technical direction for the frontend that security teams rely on to operate fleets of Corelight sensors — sometimes hundreds at a time — and act on the configuration, lifecycle, and operational data those fleets produce
- You'll bridge sophisticated APIs and the intuitive interfaces our customers depend on — partnering closely with our Lead Backend Engineer and a dedicated UX designer to shape an experience that lets defenders move with speed and precision
- This is a role for a high-agency engineer who owns outcomes end-to-end: technical direction, frontend architecture, craft, and the user experience itself
- Drive End-to-End Frontend Architecture: Lead the technical design, implementation, and operation of the Fleet Manager UI—owning state management, data layers, module boundaries, performance tuning, and the long-term technical roadmap
- Co-own the User Experience: Partner closely with a dedicated UX designer to define interaction patterns, refine complex data workflows, and make thoughtful product/UX trade-offs. Translate high-fidelity wireframes into accessible, performant, and delightful interfaces
- Build for Real Operational Scale: Integrate complex REST and GraphQL APIs to power interactive interfaces that remain highly responsive when customers manage hundreds of live sensors concurrently
- Steward the Design System: Champion the continuous evolution of our component library, ensuring consistency, reusability, and clean UI architecture across an expanding product surface area
- Technical Leadership & Mentorship: Elevate frontend engineering standards through architectural guidance, rigorous code reviews, and the promotion of clean, maintainable code. Play a key role in frontend hiring, interviewing, and onboarding to scale the team
- Leverage AI-Assisted Engineering: Utilize modern AI-assisted development tools effectively to accelerate velocity while holding auto-generated code to the same rigorous quality, security, and testing standards as hand-written code
- Security-First Engineering: Evaluate UI changes for security implications—including authentication/authorization flows, strict RBAC enforcement, XSS mitigation, and safe sensitive data handling—partnering with backend and security teams to neutralize risks
- API Collaboration: Partner with the Lead Backend Engineer on REST and GraphQL contract designs, utilizing OpenAPI specs to ensure frontend and backend architectures evolve in lockstep
- Operational Excellence: Own features completely from design to production by embedding automated test suites, CI/CD pipelines, performance budgets, and web accessibility checks directly into the core workflow
Our take
Corelight is a software company that integrates machine learning into cyber and cloud security. It develops NDRs (Network Detection and Response systems) alongside virtual, software and cloud sensors to better protect enterprises and institutions.
The company's most popular product is the Zeek Network Security Monitor, which is used by the likes of Amazon and Mozilla. It is also continually developing new products (such as a Cloud Sensor for Amazon Web Services) as the nature and complexity of cyber threats continue to grow.
Launched back in 2013, the company has been around for a while now, but it continues to keep up to date with the changing market. In 2024, Corelight secured immense Series E funding as it capitalises on the booming AI and cyber defense markets.
Freddie
Company Specialist at Welcome to the Jungle
Insights
10% employee growth in 12 months
Company
Funding (last 2 of 5 rounds)
Apr 2024
$150m
SERIES E
Sep 2021
$75m
SERIES D
Total funding: $309.2m
Company HQ
Financial District, San Francisco, CA
Leadership
Brian Dye
(CEO)Former CPO of the company. Prior to this, they were EVP of Corporate Products at McAfee, Group VP and GM of the Mobile Platforms Group at Citrix, and SVP of Information Security at Symantec.
Seth Hall
(Co-Founder & Advisor)Currently an Affiliated Researcher at Lawrence Berkeley National Laboratory. Previously Research Engineer at ICSI and Team Member at Dragon Research Group.
Vern Paxson
(Co-Founder & Chief Scientist)Previously Director of the Networking Security Group at ICSI.
Robin Sommer
(Co-Founder)Currently Affiliated Researcher at ICSI and Lawrence Berkeley National Laboratory. Previously General Chair at the IEEE International Symposium on Security and Privacy.
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