ca94a557-350 Principal Security Engineer, Privy The Principal Security Engineer is a senior individual contributor responsible for defining, building, and operating security programs for high-risk financial technology and crypto infrastructure products. This role leads security architecture and hands-on technical security work across application security, product security, infrastructure security, incident response, vulnerability management, threat modeling, secure software development, and security automation.

Key responsibilities include leading security architecture reviews for embedded wallet systems, conducting advanced threat modeling for web, mobile, cloud, wallet, blockchain, and cryptographic systems, identifying and validating vulnerabilities across applications, infrastructure, APIs, CI/CD pipelines, third-party integrations, and production services.

The Principal Security Engineer is expected to operate independently on ambiguous, high-impact security problems; design scalable security controls; review complex architectures; identify exploitable vulnerabilities; build security tooling; guide engineering teams; and represent security judgment in critical product and platform decisions.

Minimum requirements include 10 years of professional experience in software security, application security, product security, infrastructure security, security engineering, vulnerability research, incident response, or closely related technical security roles, with experience securing production software systems, cloud infrastructure, web applications, APIs, authentication systems, or financial technology platforms.

Preferred qualifications include experience securing cryptocurrency, blockchain, wallet, custody, payment, financial technology, or high-value transaction systems, experience with bug bounty programs, responsible disclosure, penetration testing, red-team findings, or vulnerability research, and experience reviewing cryptographic protocols, transaction signing systems, embedded wallets, smart-contract-adjacent systems, or developer SDKs.

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]]> full-time senior onsite software security, application security, product security, infrastructure security, security engineering, vulnerability research, incident response, threat modeling, secure software development, security automation, embedded wallet systems, web application vulnerabilities, API security, authentication, authorization, session management, input validation, injection flaws, insecure deserialization, SSRF, XSS, CSRF, access control failures, business logic vulnerabilities, cloud infrastructure, AWS, IAM, network security, secrets management, containerized workloads, CI/CD security, logging, monitoring, production hardening, cryptographic protocols, transaction signing systems, wallets, blockchain, smart contracts, developer SDKs, cryptocurrency, wallet, custody, payment, financial technology, high-value transaction systems, bug bounty programs, responsible disclosure, penetration testing, red-team findings, embedded wallets, smart-contract-adjacent systems Engineering Technology Privy Privy builds simple, flexible developer tooling that make it easy to build products that put users first, focusing on privacy and user ownership online. https://Privy https://yubhub.co/jobs/job_ca94a557-350 NYC-Privy NYC-Privy 2026-05-20 89e6092c-0c9 Backend Engineer, Privy We're seeking a skilled Backend Engineer to join our team at Privy. As a Backend Engineer, you will play a key role in creating software that turns complex technical systems into delightful developer tools. You will assemble tried-and-true primitives into intuitive, responsive APIs and beautiful interfaces.

Our Engineering team believes in open-source work and transparency with our teammates and users. We encourage each other to think big, run experiments and follow our curiosity so we can build better tooling that lets developers shine and empower their users.

Responsibilities:

  • Building and maintaining production systems at scale
  • Designing and implementing modern APIs
  • Managing database migrations and infrastructure configuration
  • Writing maintainable, well-tested, modular code
  • Collaborating with cross-functional teams to deliver high-quality software

Requirements:

  • 8+ years of experience building and maintaining a production system at scale
  • Understanding of modern API development best practices and design
  • Experience in building data models, managing database migrations and best practices, and infrastructure configuration
  • Ability to thrive in a fast-paced environment
  • Growth mindset and constant curiosity and fearlessness to dive into the unknown
  • Excellent written and verbal communication skills, including the ability to write clear technical documentation

Preferred Qualifications:

  • Strong preference for experience in an API-based business and in payments, fintech, or crypto
  • Written open-source developer tooling
  • Published about your work (open source code, internal or external presentations, blog posts, etc.)
  • Past experience working in authentication or security

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]]> full-time senior onsite modern API development, database migrations, infrastructure configuration, maintainable code, well-tested code, API-based business, payments, fintech, crypto, open-source developer tooling Engineering Technology Privy Privy builds simple, flexible developer tooling that enables users to take control of their online presence. https://Privy https://yubhub.co/jobs/job_89e6092c-0c9 NYC-Privy NYC-Privy 2026-03-31