Senior Security Engineer

What's exciting waiting for you?

• This is an amazing opportunity for you to join a fantastic crew before the rocket ship launch.
• It will be a story you will carry with you through your life and have the unique experience of building something ground up and have the satisfaction of seeing your product being used and paid for by thousands of customers.
• You will be a part of a growth story in securing critical payment infrastructure that spans both application security and cloud security across 70+ markets.

About the Senior Security Engineer Role

• As a Senior Security Engineer, you will play a pivotal role in securing our entire technology stack - from application-level security to cloud infrastructure protection.
• You will lead comprehensive security initiatives across our AWS cloud environments and payment applications built with and GoLang microservices, while leveraging AWS security services and modern security tools to protect against evolving threats. This role combines deep technical expertise in both application security and cloud security with leadership responsibilities.

Key Responsibilities

Application Security Leadership

• Lead comprehensive security assessments of microservices-based applications built with GoLang, Java, or Scala
• Conduct advanced security reviews of and ReactJS frontend applications and their integration with backend services
• Execute expert-level manual and automated web application penetration testing using industry-standard methodologies (OWASP Testing Guide, PTES)
• Design and implement vulnerability scoring and risk assessment frameworks using CVSS, OWASP Risk Rating, and custom business impact metrics
• Utilize govulncheck for Go-specific vulnerability detection and dependency analysis across microservices
• Deploy Semgrep/OpenGrep for advanced static code analysis and custom security policy enforcement

• Integrate Gitleaks for comprehensive secret detection across development workflows

• Lead secure development lifecycle (SDLC) integration and establish security standards for development teams

• Perform complex web application penetration testing including authentication bypass, authorization flaws, injection attacks, and business logic vulnerabilities

AWS Cloud Security Architecture

• Design and implement enterprise-level security architecture for AWS cloud environments
• Configure and optimize AWS Shield (Standard and Advanced) for comprehensive DDoS protection
• Implement and manage AWS CloudFront security configurations including advanced WAF rules, SSL/TLS, and origin protection
• Secure complex AWS services including EC2, ECS, EKS, Lambda, RDS, S3, API Gateway, and multi-region deployments
• Design network security controls using VPC, Security Groups, NACLs, AWS Transit Gateway, and PrivateLink
• Establish and lead secure CI/CD pipeline implementations for applications and GoLang microservices
• Architect container security solutions for Docker and Kubernetes (EKS) environments

Security Automation & Monitoring

• Implement comprehensive security monitoring using AWS CloudTrail, GuardDuty, and Security Hub
• Deploy and manage Prowler for continuous AWS security assessments and compliance validation
• Utilize ScoutSuite for multi-cloud security posture management and configuration auditing
• Configure Gitleaks for continuous secret monitoring across enterprise development workflows
• Implement Semgrep/OpenGrep rules for real-time security vulnerability detection and policy enforcement
• Lead automation initiatives using Infrastructure as Code (Terraform, CloudFormation, AWS CDK)
• Develop advanced security automation scripts and frameworks using Python, Bash, and AWS SDKs
• Create comprehensive security dashboards and executive reporting mechanisms

Vulnerability Management & Risk Assessment

• Lead enterprise vulnerability management programs with comprehensive scoring using CVSS v3.1, OWASP Risk Rating, and custom business impact assessments
• Develop sophisticated risk scoring matrices incorporating technical severity, business impact, exploitability, and regulatory requirements
• Create detailed penetration testing reports with executive summaries, technical findings, and strategic remediation roadmaps
• Establish vulnerability SLA metrics and track remediation timelines based on risk scores and business priorities

• Conduct root cause analysis (RCA) on complex security incidents and implement preventive measures

• Lead threat modeling sessions and strategic risk assessments for new features and infrastructure changes

• Mentor junior security engineers and provide technical guidance on vulnerability remediation

Compliance & Regulatory Security

• Ensure comprehensive compliance with financial industry regulations (PCI DSS, SOX, GDPR, PSD2)
• Lead compliance audits and regulatory assessments using Prowler for AWS compliance validation
• Implement ScoutSuite for comprehensive multi-cloud security auditing
• Design and maintain data protection controls for sensitive payment processing workloads
• Develop and maintain disaster recovery and business continuity security plans
• Lead security aspects of vendor risk assessments and third-party integrations
• Represent security requirements to business leadership and regulatory bodies

Technical Leadership & Strategy

• Serve as technical security leader for complex cross-functional projects
• Influence security strategies, standards, and architectural decisions across the organization
• Lead security initiatives and mentor junior engineers on advanced security practices
• Participate in strategic security planning and technology evaluation
• Drive security culture transformation and champion security best practices
• Represent security needs to executive leadership and board-level communications

Required Qualifications

Experience

• 8+ years of experience in information security with demonstrated expertise in both application security and cloud security
• Extensive experience securing microservices architectures, particularly those built with GoLang, Java, or Scala
• Advanced experience with AWS cloud security including Shield, CloudFront, and comprehensive security service management
• Expert-level web application penetration testing experience including complex business logic vulnerabilities and multi-tier architectures
• Proven leadership in vulnerability scoring and risk assessment using industry-standard frameworks
• Hands-on expertise with security automation tools: govulncheck, Gitleaks, Semgrep/OpenGrep, Prowler, ScoutSuite
• Strong experience securing applications and modern JavaScript frameworks , ReactJS)
• Experience leading security teams and influencing organizational security strategy

Technical Skills

• Expert-level proficiency in AWS security services including Shield, CloudFront, GuardDuty, Security Hub, WAF, and comprehensive service portfolio
• Advanced application security expertise across GoLang, Java, Scala, , , and ReactJS technologies
• Mastery of security automation tools: govulncheck (Go vulnerability scanning), Gitleaks (secret detection), Semgrep/OpenGrep (static analysis), Prowler (AWS security assessment), ScoutSuite (multi-cloud auditing)
• Expert-level web application penetration testing skills using advanced tools and custom exploitation frameworks
• Comprehensive knowledge of vulnerability scoring frameworks including CVSS v3.1, OWASP Risk Rating, and FAIR methodology
• Advanced Infrastructure as Code proficiency (Terraform, CloudFormation, AWS CDK)
• Expert container and orchestration security (Docker, Kubernetes/EKS, service mesh security)
• Advanced scripting and automation capabilities (Python, Bash, PowerShell, Go)
• Enterprise network security and cloud networking expertise

Security Expertise

• Deep understanding of application security principles and advanced penetration testing methodologies
• Expert knowledge of cloud security frameworks (NIST, CSA, AWS Well-Architected Security Pillar)
• Advanced understanding of financial services security and payment processing compliance requirements
• Expertise in security architecture design for complex distributed systems
• Advanced threat modeling and risk assessment capabilities
• Comprehensive knowledge of cryptography, PKI, and secure communication protocols
• Expert-level incident response and forensic analysis skills
• Advanced understanding of regulatory compliance frameworks and audit requirements

Nice to Have

Certifications

• AWS Security Specialty certification (required)
• Advanced penetration testing certifications (OSCP, GWEB, eWPT, eWPTX)
• Security leadership certifications (CISSP, CISM, CISSP)
• Cloud architecture certifications (AWS Solutions Architect Professional, DevOps Engineer Professional)
• Additional cloud security certifications (Azure Security, GCP Security)

Additional Skills

• Experience with multi-cloud security architectures and hybrid environments
• Advanced knowledge of serverless security (AWS Lambda, API Gateway, serverless frameworks)
• Expertise in security orchestration and automated response (SOAR) platforms
• Experience with machine learning/AI security applications and threat detection
• Advanced understanding of payment processing security and financial services infrastructure
• Experience with regulatory examination processes and security audit leadership
• Knowledge of emerging security technologies and threat landscape evolution

• Experience with security product evaluation and vendor management

• Advanced presentation and executive communication skills

Key Abilities and Traits

Technical Excellence: Demonstrated ability to architect and implement comprehensive security solutions across complex application and cloud environments processing sensitive financial data.

Leadership: Proven capability to lead security initiatives across multiple teams, influence strategic decisions, and mentor engineering talent while representing security needs to executive leadership.

Strategic Thinking: Ability to balance immediate security needs with long-term strategic objectives, translating business requirements into technical security solutions.

Problem-Solving: Expert-level analytical and problem-solving skills with the ability to address complex security challenges spanning application code to cloud infrastructure.

Communication: Exceptional verbal and written communication skills, capable of explaining complex security concepts to technical teams, business stakeholders, and executive leadership.

Continuous Innovation: Commitment to staying current with emerging security threats, technologies, and industry best practices while driving security innovation within the organization.

Project Management: Advanced ability to manage multiple complex security initiatives simultaneously while ensuring compliance with regulatory requirements and business objectives.

Mentorship: Strong commitment to developing junior security talent and fostering a security-conscious culture across engineering teams.