RefolkCandidates
Open nowEngineeringEngineering

Frontend UI Engineer

Cylake · Sunnyvale, California

Location
Sunnyvale, California, United States
Employment
Full time
Level
Mid level
Posted
6 months ago

About this role

Your Impact

Join a small team building the next generation of cybersecurity products from the ground up. Led by industry veterans with a proven track record of success - you will get to architect, build, and deliver hugely impactful products with this world class team. You will have the opportunity to grow your career and skills along with the company from the very start.

Role Overview

We're building a next-generation AI-native cybersecurity platform from the ground up. Unlike traditional SaaS products, our platform runs entirely within customer-controlled environments and processes massive volumes of security telemetry, system activity, and enterprise data.

We're looking for a frontend engineer who can own the user experience for complex security and operational workflows. This is not a typical consumer application role. You'll design and build interfaces that help security analysts investigate threats, navigate large-scale datasets, understand system behavior, and take action quickly. As one of the early frontend engineers, you'll have significant influence over product architecture, user experience, frontend infrastructure, and how AI is integrated into the product.

What You'll Do

  • Design and build core user experiences for security investigation, detection, and response workflows

  • Own frontend architecture across a large-scale enterprise application

  • Partner closely with product, backend, AI, and infrastructure engineers to define new product capabilities

  • Build highly performant interfaces for exploring and analyzing large datasets

  • Develop advanced visualizations, dashboards, and investigation tools

  • Leverage AI capabilities to improve analyst workflows and productivity

  • Establish frontend engineering standards, patterns, and best practices

  • Drive UI performance, scalability, and maintainability across the platform

Required Experience

  • 5+ years building and shipping product frontend applications

  • Deep expertise in React, TypeScript, and modern frontend architecture

  • Experience designing and implementing complex workflows for expert users

  • Strong product and UX instincts with the ability to make independent design decisions

  • Experience building data-intensive applications, dashboards, developer tools, observability products, infrastructure software, or enterprise platforms

  • Strong experience with frontend performance optimization, rendering performance, memory management, and profiling

  • Experience working closely with designers or owning significant portions of the user experience directly

  • Excellent communication and technical design skills

We offer competitive compensation and a comprehensive benefits package designed to support our employees’ health, well-being, and long-term success. The expected salary range for this position is $150,000 - $250,000 per year. Within this range, individual pay is determined based on job-related factors including skills, experience, qualifications, and internal equity. Most candidates can expect an offer within the range listed above. Your recruiter will provide additional details on compensation and benefits to qualified candidates during the hiring process.

We’re committed to building a diverse, inclusive workplace where everyone can do their best work. We are proud to be an equal opportunity employer and do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. If you require a reasonable accommodation during the application or interview process, please let us know - we’re happy to support you.

As published by Cylake. Applications are handled on their site.

Skills this posting mentions

Artificial IntelligenceUser ExperiencePerformance Optimization

About Cylake

Cylake is building a complete, AI-native, data-driven cybersecurity platform for the world’s largest and most regulated institutions. Our approach does not depend on the public cloud; instead, it’s designed to operate on-premises or in private cloud environments, so that our customers retain full data and operational control. Our platform is currently under development, in consultation with several design partners, and is planned for general availability in early 2027.

All 15 openings at Cylake

One click, then it is written

Apply to Cylake with a resume written for this role.

Queue Frontend UI Engineer and I read the posting, rewrite your resume against it, draft the cover letter, and score the fit. Then you press send, or press one button and I fill in Cylake’s form for you.

  1. 01Drop your resume

    A PDF or a LinkedIn URL. About a minute, once.

  2. 02I rank the openings

    Every weekday morning, the live catalog scored against your history. Up to 20 worth your time, not two hundred links.

  3. 03Each one is written up

    Resume rewritten for the posting, a cover letter, a fit score. Press send, or let me fill in the form.

  • 25 sent a week, free
  • No card
  • Nothing sent until you say so

More roles at Cylake

See all

Similar roles elsewhere

See more

Put this to work

Paste your career in once. Every application after that is written for you.

Drop a resume or a LinkedIn URL. I rank the live openings against it, rewrite the resume and write a cover letter for the best of them, and fill in the employer's form when you press the button. You read, you decide what goes out.

  1. 01Drop your resume

    A PDF or a LinkedIn URL. About a minute, once.

  2. 02I rank the openings

    Every weekday morning, the live catalog scored against your history. Up to 20 worth your time, not two hundred links.

  3. 03Each one is written up

    Resume rewritten for the posting, a cover letter, a fit score. Press send, or let me fill in the form.

  • New matches ranked and written before you are up.
  • Every bullet stays inside what your history supports. Nothing invented.
  • Queued, submitted, interviewing, offer: one screen, not a spreadsheet.

500 free credits on sign-up. No card. Nothing is sent until you say so.

Listed from the job board Cylake publishes. Refolk is not the employer and does not handle their hiring. Applications go to Cylake directly.