Senior Frontend Engineer

Reposted 22 Days Ago
Boston, MA, USA
Hybrid
Senior level
Artificial Intelligence • Software • Cybersecurity
Foundational AI Security.
The Role
Design and build user-facing components for an AI-native cloud platform, ensuring scalability and performance, mentoring engineers, and optimizing web interfaces.
Summary Generated by Built In

We are seeking a Senior Frontend Engineer to join our core team. In this role, you’ll take ownership of designing and building the user-facing components of our AI-native cloud platform. You’ll architect scalable, high-performance web interfaces that make complex cybersecurity capabilities intuitive and accessible.

As our systems become increasingly AI-driven, a key part of your work will be building interfaces that make these intelligent systems explainable and trustworthy. You’ll help users understand how AI decisions are made — turning model outputs and security insights into clear, actionable, and transparent experiences.

As a senior member of the team, you’ll shape our frontend architecture, mentor other engineers, and collaborate closely with design and product to deliver exceptional, insight-driven user experiences.

Responsibilities
  • Architect and implement sophisticated, performant web interfaces for our AI-native cloud platform.

  • Drive frontend technical direction, selecting modern frameworks, libraries, and tools to ensure scalability, maintainability, and performance.

  • Collaborate closely with product, design, and backend teams to translate complex cybersecurity use cases into intuitive, user-centered experiences.

  • Define and uphold best practices in coding standards, testing, and frontend architecture.

  • Optimize performance across browsers and devices, ensuring accessibility and responsiveness.

  • Contribute to long-term engineering strategy.

  • Provide expert technical feedback on UX designs and feature requirements.

Requirements
  • 7+ years of professional frontend engineering experience, with a proven track record of building and scaling production-grade web applications.

  • Deep expertise in React (or similar modern frameworks such as Vue or Angular) and strong proficiency in JavaScript and TypeScript.

  • Strong experience with frontend architecture, APIs and performance optimization.

  • Familiarity with cloud-based environments and integration with backend APIs and services.

  • Comfortable working with AI Coding tools such as Cursor.

  • Demonstrated experience with UI/UX best practices, responsive design, and accessibility standards.

  • Ability to make sound technical decisions in a rapidly-changing environment and communicate trade-offs effectively.

  • Bachelor’s degree in Computer Science or a related field (or equivalent practical experience).

  • A collaborative, proactive mindset with excellent problem-solving and communication skills.

Skills Required

  • 7+ years of professional frontend engineering experience
  • Deep expertise in React or similar frameworks
  • Strong proficiency in JavaScript and TypeScript
  • Strong experience with state management and performance optimization
  • Bachelor's degree in Computer Science or related field

7AI Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about 7AI and has not been reviewed or approved by 7AI.

  • Fair & Transparent Compensation Employer-provided salary ranges appear on multiple postings, indicating visible pay bands. Pay is positioned as competitive to attract talent in the fast-growing AI/security space.
  • Healthcare Strength Core medical, dental, and vision coverage is explicitly listed as part of the package. This establishes a solid baseline of health benefits for an early-stage startup.
  • Equity Value & Accessibility Equity or stock options are included alongside cash compensation. Ownership participation is presented as a meaningful component of total rewards.

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The Company
HQ: Boston, Massachusetts
150 Employees
Year Founded: 2024

What We Do

7AI is building foundational AI security: the AI-native layer for how modern security work gets done. Our autonomous AI agents work across the security tools organizations already use to ingest and enrich alerts, investigate threats, form defensible conclusions, and recommend or take response actions. By taking on repetitive, non-human work at machine speed, 7AI helps security teams move up to proactive defense, threat hunting, and the strategic work that protects their organizations. Founded by world-renowned cybersecurity experts Lior Div and Yonatan Striem Amit and backed by Greylock Partners, Index Ventures, and Spark Capital, 7AI is leading the agentic security revolution.

Why Work With Us

7AI is a builder-led, low-ego company. People have real ownership, move with speed and urgency, and care more about solving hard problems than hierarchy or politics. We’re collaborative, thoughtful, and grounded in substance over hype. Join us if you want to shape a new category and work on problems that genuinely matter.

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