Senior Application Security Engineer

At Webflow, we’re building the world’s leading AI-native Digital Experience Platform, and we’re doing it as a remote-first company built on trust, transparency, and a whole lot of creativity. This work takes grit, because we move fast, without ever sacrificing craft or quality. Our mission is to bring development superpowers to everyone. From entrepreneurs launching their first idea to global enterprises scaling their digital presence, we empower teams to design, launch, and optimize for the web without barriers. We believe the future of the web, and work, is more open, more creative, and more equitable. And we’re here to build it together.

We’re looking for a Senior Application Security Engineer to help us level up Webflow’s secure development practices ranging from secure coding, tooling, and improving procedures.

• Location: Remote-first (Argentina) 
• Full-time
• Permanent

This role is also eligible to participate in Webflow's company-wide bonus program. Target amounts are a percentage of base salary and vary by career level. Payouts are based on company performance against established financial and operational goals. 

• Reporting to the Manager of Application Security

As an Application Security Engineer, you’ll … 

• Collaborate with the Webflow engineering team to secure Webflow’s web application platform and ecosystem.
• Bring security best practices to the software development lifecycle.
• Work as part of a team to champion security standards while balancing business strategies and requirements.
• Support Webflow’s security current and future compliance frameworks
• Work to find security vulnerabilities through grey-box techniques, and propose solutions at the architecture and code level to mitigate findings.
• Contribute code and architecture improvements to enable security within Webflow’s application for engineers.
• Cross-train entry and mid-level application security engineers

In addition to the responsibilities outlined above, at Webflow we will support you in identifying where your interests and development opportunities lie and we'll help you incorporate them into your role.

You will thrive as a Senior Application Security Engineer if you...

• BA/BS Degree or equivalent experience (required)
• Have 3+ years of application security experience with a solid background in web application security, secure coding, penetration testing, and insecure engineering practices.
• Proficiency with security tooling (SCA, SAST, DAST, API security) and experience writing code to build tools, create exploit scripts, or remediate production vulnerabilities.
• Experience evaluating applications to improve security design, conducting threat modeling, and driving risk reduction through secure SDLC processes, tooling, and automation.
• Hands-on experience with bug bounty programs, including setup, exploit reproduction, and coordinating remediation.
• Familiarity with leveraging AI for security reviews and coding assistance to enhance application security practices.
• Strong communication skills with a passion for security, continuous learning, and the ability to clearly share knowledge and mentor colleagues.
• Business-level fluency to read, write and speak in English

• Build lasting customer trust. We build trust by taking action that puts customer trust first.
• Win together. We play to win, and we win as one team. Success at Webflow isn't a solo act.
• Reinvent ourselves. We don't just improve what exists, we imagine what's possible.
• Deliver with speed, quality, and craft. We move fast because the moment demands it, and we do so without lowering the bar.

• Ownership in what you help build. Every permanent Webflower receives equity (RSUs) in our growing, privately held company.
• Health coverage that actually covers you. Comprehensive medical, dental, and vision plans for full-time employees and their dependents, with Webflow covering most premiums.
• Support for every stage of family life. 12 weeks of paid parental leave for all parents and 6+ weeks of additional paid leave for birthing parents. Plus inclusive care for family planning, menopause, and midlife transitions.
• Time off that’s actually off. Flexible vacation, paid holidays, and a sabbatical program to help you recharge and come back inspired.
• Wellness for the whole you. Access to mental health resources, therapy and coaching.
• Invest in your future. A 401(k) with 100% employer match (up to $6,000/year) in the U.S., and support for retirement savings globally. 
• Monthly stipends that flex with your life. Localized support for work and wellness expenses — from Wi-Fi to workouts.
• Bonus for building together. All full-time, permanent, non-commission employees are eligible for our annual WIN bonus program.

Temporary employees may be eligible for paid holiday and time off, statutory leaves of absence, and company-sponsored medical benefits depending on their Fixed Term Contract and their country/state of employment.

At Webflow, equality is a core tenet of our culture. We are an Equal Opportunity (EEO)/Veterans/Disabled Employer and are committed to building an inclusive global team that represents a variety of backgrounds, perspectives, beliefs, and experiences. Employment decisions are made on the basis of job-related criteria without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other classification protected by applicable law. Pursuant to the San Francisco Fair Chance Ordinance, Webflow will consider for employment qualified applicants with arrest and conviction records.

Not ready to apply, but want to be part of the Webflow community? Consider following our story on our Webflow Blog, LinkedIn, X (Twitter), and/or Glassdoor. 

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Upon interview scheduling, instructions for confidential accommodation requests will be administered.

To join Webflow, you'll need a valid right to work authorization depending on the country of employment.

If you are extended an offer, that offer may be contingent upon your successful completion of a background check, which will be conducted in accordance with applicable laws. We may obtain one or more background screening reports about you, solely for employment purposes.

For information about how Webflow processes your personal information, please review Webflow’s Applicant Privacy Notice.