Senior Security Engineer (Product Security)Role OverviewWe are seeking a Senior Security Engineer to embed security throughout our product development lifecycle. You'll work directly with engineering teams to identify and mitigate security risks through threat modeling, secure code reviews, and integrated security tooling across our web and mobile applications. This role is critical to establishing our secure development practices, implementing industry-standard SSDLC processes, and ensuring our financial products are resilient against evolving threats.Key ResponsibilitiesSecure Development Lifecycle (SDLC) ImplementationDesign and implement secure software development practicesIntegrate security gates into CI/CD pipelines following DevSecOps principlesEstablish security quality gates and acceptance criteriaDevelop secure coding standards based on OWASP guidelinesCreate security architecture patterns and reference implementationsSecurity Code Reviews & TestingConduct in-depth security code reviews for critical featuresImplement automated security testing (SAST, DAST, IAST, SCA)Configure and tune security scanning tools (Aquasec, Trivy, Dependabot, etc)Review cryptographic implementations against industry standardsValidate authentication and authorization implementationsEnsure compliance with OWASP ASVS (Application Security Verification Standard)Lead threat modeling sessions using STRIDE, PASTA, or similar frameworksCreate threat models for new products and architectural changesIdentify attack vectors specific to web and mobile platformsDevelop abuse cases and security test scenariosMaintain threat intelligence for fintech-specific risksDocument security requirements derived from threat modelsPlatform-Specific SecurityMobile Applications: Apply OWASP MASVS and platform-specific guidelines (iOS App Transport Security, Android Network Security Config)APIs: Implement API security best practices (rate limiting, authentication, input validation)Cross-platform session management and secure data storageSecurity Tooling & AutomationBuild and maintain security testing pipelinesIntegrate security tools with GitHub ActionsDevelop custom security linters and pre-commit hooksCreate automated vulnerability tracking and remediation workflowsImplement secret scanning and dependency checkingBuild security dashboards and metrics reportingCreate secure coding guidelines for different technology stacksDevelop a security champions program aligned with OWASP SAMMConduct security training on platform-specific vulnerabilitiesProvide hands-on guidance during security incidentsBuild internal security libraries and frameworksCreate threat modeling templates and playbooksRequired QualificationsTechnical Expertise5+ years of application security experienceDeep understanding of security vulnerabilities across web and mobile platformsHands-on experience with security testing tools and methodologiesExpertise in secure coding practices and design patternsExperience with modern development frameworks (React, Angular, ReactNative, Flutter)Security Domain KnowledgeExpert knowledge of OWASP standards (Top 10, ASVS, SAMM, MASVS)Understanding of cryptographic principles and secure implementationsExperience with threat modeling methodologiesKnowledge of authentication standards (OAuth2, OIDC, WebAuthn)Familiarity with PCI-DSS, PSD2, and Strong Customer Authentication requirementsUnderstanding of cloud-native security patternsAbility to identify security vulnerabilities through manual code reviewExperience with static and dynamic analysis toolsUnderstanding of common vulnerability patterns across languagesKnowledge of secure architecture patterns and anti-patternsAbility to provide actionable remediation guidanceProfessional RequirementsExperience in financial services or high-security environmentsStrong communication skills to explain security risks to developersAbility to balance security requirements with development velocityCollaborative approach to working with engineering teamsTechnical writing skills for documentation and guidelinesPreferred QualificationsExperience with payment systems and transaction securityKnowledge of mobile app protectionExperience building security champions programsBackground in penetration testing or security researchKey Projects & InitiativesYou\'ll lead critical security initiatives, including:Building threat modeling practice for all productsEstablishing automated security testing in CI/CD pipelinesCreating platform-specific security standards and librariesDeveloping a security training curriculum for 200+ developersWhat We OfferDirect impact on the security of products used by thousands of businessesWork with cutting-edge fintech products across multiple platformsCollaborate with talented engineers across 25+ countriesModern security tooling and testing infrastructureInvestment in professional development and certificationsClear progression path to Staff/Principal roles #J-18808-Ljbffr