Source Job

Canada US 2w PTO

  • Validate incoming security findings from the research community using code analysis and pentesting tools.
  • Collaborate with engineering teams to remediate valid vulnerabilities in the codebase.
  • Build or improve automated workflows and tooling using languages like Rust, Go, or Python.

Cybersecurity Vulnerability Management Rust

14 jobs similar to Application Security Intern

Jobs ranked by similarity.

North America

  • Learn and grow through hands-on development work, supported by steady mentorship from experienced engineers.
  • Contribute to meaningful features and improvements across our platform rather than isolated tasks.
  • Collaborate closely with teammates, ask questions, and share ideas—your input matters.

1Password is a cybersecurity company that provides password management and Unified Access Management solutions. With over 180,000 businesses and $400M ARR, they foster a culture of curiosity, collaboration, and human-centric innovation.

Europe

  • Own and manage bug bounty intake processes, including triaging reports, validating vulnerabilities, and reproducing proof of concepts.
  • Collaborate with developers and product teams to design and implement effective remediation strategies for identified security issues.
  • Contribute directly to codebases by reviewing and submitting pull requests to fix security vulnerabilities.

Jobgether is a company using AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. They have a collaborative, feedback-driven culture that encourages innovation and ownership.

Canada US 5w PTO

  • Build features for the 1Password Integrations Marketplace, contributing to web frontend and backend services.
  • Help design and implement public-facing APIs using modern standards like REST and gRPC.
  • Write clean, well-tested code across a TypeScript/React frontend and Go backend.

1Password builds the foundation for a safe, productive digital future, focusing on identity and access management. With over $400M in ARR and a spot on the Forbes Cloud 100, the company employs a remote-first, collaborative culture that values curiosity and innovation.

UK Global

  • Lead and own the ongoing operation and maintenance of Samsara’s vulnerability management program.
  • Collaborate with engineering teams to track and support the remediation of identified vulnerabilities.
  • Champion Samsara’s cultural principles in daily work.

Samsara is the pioneer of the Connected Operations Cloud, enabling organizations to harness IoT data for actionable insights. As a recently public company with a global team, they foster a culture of rapid career development and encourage employees to architect their own careers.

Global

  • Assist in developing secure software by writing and optimizing Rust code for security-critical components.
  • Conduct deep manual and automated code audits to identify vulnerabilities and manage bug bounty submissions.
  • Design machine learning models for automated security analysis and threat mitigation in blockchain.

Parity builds core blockchain infrastructure for a decentralized web, focusing on open-source projects like Polkadot. As a remote-first global team, we foster innovation and collaboration among some of the brightest minds in Web3.

Canada

  • Assist in the preparation of documentation for audits and other compliance needs.
  • Collaborate with team members on special accounting projects, including research on technical accounting matters.
  • Support ad hoc projects from various internal teams as needed.

1Password is a cybersecurity company that provides enterprise password management and unified access management solutions. The company has over 180,000 business customers, including Fortune 100 leaders, and employs a remote-first team known for innovation and a human-centric approach.

United States

  • Perform penetration testing and design reviews to identify vulnerabilities and insecure designs.
  • Maintain and build internal tools to automate security efforts, including SAST and DAST testing.
  • Identify vulnerabilities, demonstrate business impact, and articulate risk to drive prioritization.

Brex is the intelligent finance platform that enables companies to spend smarter and move faster in over 200 markets. With tens of thousands of customers including DoorDash, Coinbase, and Zoom, Brex fosters a diverse and inclusive team culture where collaboration with some of the brightest minds in the industry is key.

US Canada Unlimited PTO

  • Own and improve the secure software development lifecycle, perform application security reviews, threat modeling, and deep code-level analysis for high-impact product, platform, and AI features.
  • Drive vulnerability management across internal reviews, bug bounty, pentests, and other research signals, ensuring findings are validated, prioritized, and tracked through remediation.
  • Configure and improve AppSec tooling and integrations, and use AI to automate and scale security processes while validating outputs with strong engineering judgment.

Apollo.io is the leading go-to-market solution for revenue teams, trusted by over 500,000 companies and millions of users globally. Founded in 2015, the company is one of the fastest growing companies in SaaS, raising approximately $250 million to date and valued at $1.6 billion.

Canada US 2w PTO

  • Assist in building React components from Figma specifications and implement them in customer-facing applications.
  • Help define frontend standards and best practices while developing tooling to streamline design and development.
  • Collaborate with a cross-functional team across multiple countries, disciplines, and experience levels.

1Password builds the foundation for a safe, productive digital future, focusing on identity and access management for businesses. With over 180,000 customers and a spot on the Forbes Cloud 100, we are a fast-paced, human-centric team.

Global Unlimited PTO

  • Own end-to-end security reviews across smart contracts, backend services, and frontend surfaces.
  • Build and ship an agentic security CI/CD pipeline that runs autonomously against every PR and release candidate.
  • Triage and manage the bug bounty program, reproduce findings, and route confirmed issues to engineering with context.

Polygon Labs is a global blockchain payments company building infrastructure to move money instantly and reliably. It has facilitated trillions in onchain value transfer and supports millions of daily transactions for banks, fintechs, and enterprises.

Global Unlimited PTO

  • Conduct threat modelling reviews of Technical Design Documents (TDDs) and provide actionable security recommendations early in the design process.
  • Perform application security assessments, including penetration testing, vulnerability assessments, and proof-of-concept development.
  • Investigate, triage, and respond to Bug Bounty program submissions, validating findings and driving timely remediation with engineering teams.

MoonPay is a unified payments platform for digital currency. Trusted by over 30 million customers and over 500 ecosystem partners, the company is committed to building a fairer, more open financial system with a culture of accountability and inclusivity.

Canada US

  • Collaborate with Product Designers, Content Designers, Product Managers, UX Researchers, and Software Developers to understand and solve problems for customers.
  • Develop AI prototypes and detailed feature specs in Figma using our design system.
  • Gather and incorporate feedback on your design work and share your feedback with other designers in weekly critique sessions.

1Password builds the foundation for a safe, productive digital future, unifying employee productivity with security. With over $400M in ARR, they are a remote-first company known for a human-centric culture and are proud to be an equal opportunity employer.

Spain

  • Play a key role in protecting and strengthening large-scale cloud-native applications that power next-generation AI infrastructure.
  • Work at the intersection of software engineering and cybersecurity, ensuring security is embedded throughout the software development lifecycle.
  • Collaborate cross-functionally to identify and remediate vulnerabilities in complex distributed systems.

Our partner is a company building large-scale cloud-native applications that power next-generation AI infrastructure. They have a high-impact security engineering environment with a collaborative and innovative culture focused on trust, learning, and impact.

US Unlimited PTO 13w maternity 12w paternity

  • Lead Flock's Security Incident Response Team (PSIRT) as the single point of accountability for all externally-reported and internally-discovered vulnerabilities.
  • Own the CNA, CVD program, and drive fixes across Hardware, Firmware, SRE, Mobile, ML, Legal, and more.
  • Set SLAs, metrics, playbooks, and public security advisories, reducing risk for devices and customers.

Flock builds technology that reduces crime and protects privacy, partnering with cities, businesses, schools, and neighborhoods. With over $1B in funding and an $8.3B valuation, they are a high-performance team united by urgency, ownership, and a shared commitment to meaningful impact.