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Senior Application Security Engineer

Senior Application Security Engineer

Hybrid

San francisco bay, United states

$ 250,000 /year

Senior

Full Time

28-10-2025

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Skills

Incident Response CI/CD Monitoring Architecture CI/CD Pipelines

Job Specifications

Foundr are working with a Series B technology company building the infrastructure that keeps modern industries running safely and efficiently. Their systems process high volumes of sensitive data every day, and security is foundational to everything we build.

Backed by incredible tier 1 investors!

We’re looking for a Senior Application Security Engineer to help design and scale a secure, resilient platform from the inside out. You’ll join a lean, fast-moving engineering team where security isn’t an afterthought, it’s a core product value.

The Role

You’ll lead initiatives to embed security into every stage of the development lifecycle, from architecture and code review to incident response and automation. This is a hands-on role with broad scope and high ownership, ideal for someone who thrives in environments where clarity, rigor, and speed coexist.

What You’ll Do

Own application-level security across multiple services and teams.
Conduct threat modelling, code reviews, and architecture assessments.
Identify and remediate vulnerabilities through automation and process.
Partner with engineering and product teams to embed secure-by-design practices.
Strengthen monitoring, detection, and response across our cloud environment.
Elevate our internal security culture through education and tooling.

You Might Be a Fit If…

You have 5+ years in application or product security within complex systems.
You’re fluent in modern web architectures, APIs, and CI/CD pipelines.
You’ve built or scaled secure software in dynamic, fast-growing companies.
You balance pragmatism with precision, shipping securely at speed.
You’re proactive, curious, and comfortable working with ambiguity.

Bonus Points

Experience working with regulated data or high-trust domains.
Familiarity with modern cloud infrastructure and security frameworks.
Hands-on experience with LLMs or AI-assisted tooling for secure development.

Can’t wait to hear more about this position?

Click Apply below and reach out to careers@foundr.xyz and they will be more than happy to share more details.

Foundr.xyz is extremely committed to working with equal opportunity employers helping build diverse and inclusive workforce’s. We put the people we work with at the heart of everything we do and dedicate all we do to playing a part in developing an industry that represents a variety of backgrounds, perspectives, and skills.

About the Company

foundr is the neural network powering startups' talent acquisition strategies. We are more than just a recruitment agency; we're the algorithm that optimizes the talent pipeline for tech companies, ensuring seamless integration of top-tier talent. Newsletter - https://foundrtalent.beehiiv.com/ Podcast - The Opensource Podcast As the 'trusted partner' for hiring teams navigating the competitive landscape of tech recruitment, Foundr serves as an indispensable partnership for accelerating startup success. Know more