Senior Software Engineer – Frontend, Extensions Team

Cerby

Senior Software Engineer responsible for developing a browser extension for Cerby's cybersecurity platform. Collaborating with cross-functional teams to deliver secure, high-performance solutions.

Posted 7/7/2026full-timeRemote • California • 🇺🇸 United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in building and scaling SaaS applications with a strong focus on security, performance, and maintainability. Proficient in modern frontend technologies and practices, including React, TypeScript, and REST API design.

Highest-signal resume keywords

SaaS Application DevelopmentReact + TypeScript ProficiencyDistributed Applications ExperienceSecurity-First Code ReviewsREST API Design and Optimization

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

SaaS Application DevelopmentReactTypeScriptTailwindCSSREST API DesignDistributed ApplicationsFrontend SecurityModern AuthenticationTestingObservability

Soft Skills

CollaborationMentoringKnowledge Sharing

Tools & Technologies

Manifest V3Service-Worker ModelContent ScriptsRemote Collaboration Tools

Industry Keywords

Security-First ApproachCode ReviewsHigh-Performance SoftwareClean Code PracticesInnovation in Development

Tech Stack

Tools & technologies

ReactTypeScript

About the role

Key responsibilities & impact

Build scalable, high-performance software solutions that align with business goals.
Work closely with product managers, engineering managers, UX designers, and other engineers.
Write clean, maintainable, and efficient code, adhering to best practices.
Participate in code reviews, share knowledge, and continuously improve development processes.
Champion new technologies, frameworks, and methodologies that drive innovation.
Actively contribute to a security-first approach by identifying vulnerabilities and implementing robust solutions.
Collaborate effectively in a remote-first environment.

Requirements

What you’ll need

5+ years of professional software engineering experience, with a focus on building and scaling SaaS applications.
Prior experience developing and maintaining Distributed Applications
Previous experience mentoring junior developers and conducting security-first code reviews
Technical Expertise: Manifest V3 service-worker model
Content scripts and injection into untrusted pages
Proficiency in Strong React + TypeScript with utility-first CSS (e.g., TailwindCSS)
Core frontend and browser fundamentals
Designing, consuming, and optimizing REST APIs
Front-end security
Modern authentication and identity
Testing and observability

Benefits

Comp & perks

Flexible work arrangements
Professional development opportunities