"web application security" Jobs

321 open tech roles matching “web application security”, taken straight from company career pages — not reposted from other job boards. Most in demand right now: Python, TypeScript, AI/ML. Every listing is re-checked daily and closed roles are removed.

Showing 20 of 321 results

Exa

Join Exa as a Security Engineer to build protective systems for massive-scale AI infrastructure in San Francisco.

Exa San Francisco, California Published 1 week ago
AI-first team
Mandolin

Join Mandolin as a Security Engineer to secure applications and cloud infrastructure while collaborating with cross-functional teams.

Mandolin San Francisco $160k–$270k/yr Published 6 months ago
Flexible on stack
Cognition

Join Cognition as a Security Engineer to secure AI-native developer tools and build innovative security systems.

Cognition San Francisco $260k–$300k/yr Published 3 months ago
Flexible on stack
Doppel

Join Doppel as a backend engineer to build scalable systems for social engineering defense.

Doppel San Francisco, New York Published 1 month ago
Harvey

Join Harvey as a Staff Security Software Engineer to define and drive the technical strategy for identity and access management.

Harvey San Francisco $231k–$340k/yr Published 1 month ago
Gamma

Join Gamma as a Security Engineer to enhance security for our platform and infrastructure using AI-driven tools.

Gamma San Francisco $180k–$310k/yr Published 1 year ago
Flexible on stack 70% coding
Perplexity AI

Join Perplexity AI as an Offensive Security Engineer to enhance security through red teaming and vulnerability assessments.

Perplexity AI San Francisco Published 7 months ago
Flexible on stack AI-first team
Fastly

Join Fastly as a Senior Software Engineer to develop backend systems for large scale web applications in Go.

Fastly Denver, CO; New York City, NY; San Francisco, CA $181.2k–$217.5k/yr Published 2 months ago
Flexible on stack
Fastly

Join Fastly as a Senior Software Engineer to develop backend systems for security products in a fully remote role.

Fastly San Francisco, CA $181.2k–$217.5k/yr Published 1 week ago
Flexible on stack
Cloudflare

Join Cloudflare as a Security Research Analyst to develop managed rules protecting web applications from threats.

Cloudflare Hybrid $150k–$216k/yr Published 2 weeks ago
Flexible on stack AI-first team
Listen Labs

Join Listen Labs as a security engineer to build protections for AI-moderated video interviews at scale.

Listen Labs San Francisco, CA $180k–$300k/yr Published 1 month ago
Flexible on stack 70% coding
Astranis

Join Astranis as a Product Security Engineer to build and secure web applications while embedding security into the software development lifecycle.

Astranis San Francisco $130k–$215k/yr Published 7 months ago
Flexible on stack
Wispr Flow

Own product security end to end at Wispr Flow, a growing company focused on building a voice interface for millions of users.

Wispr Flow San Francisco Published 3 months ago
Flexible on stack
Harvey AI

Join Harvey AI as a Staff Web Engineer to lead the architecture and integration of their web platform in a fast-growing AI company.

Harvey AI San Francisco $146.6k–$201.5k/yr Published 2 months ago
Flexible on stack
Cogent Security

Join Cogent Security as a Staff Frontend Engineer to lead the development of a new platform for visualizing complex security data.

Cogent Security San Francisco, CA $100k–$300k/yr Published 2 months ago
60% coding
Neuralink

Join Neuralink as a Security Engineer to protect innovative brain-computer interface technology and ensure security across all systems.

Neuralink Austin, Texas, United States; South San Francisco, California, United States $123k–$230k/yr Published 3 months ago
Flexible on stack
Fable Security

Join Fable Security as a Frontend Engineer to build high-quality, responsive interfaces in a fast-paced environment.

Fable Security San Francisco, CA (Hybrid) $135k–$220k/yr Published 1 year ago
Flexible on stack
Astranis

Join Astranis as a Senior Product Security Engineer to secure software and embedded components in advanced satellite systems.

Astranis San Francisco $180k–$285k/yr Published 7 months ago
Flexible on stack
Specter

Join Specter as a full stack engineer to build and scale applications for real-time physical intelligence.

Specter San Francisco Published 10 months ago