Application Security Engineer

Talent Safari

Application Security Engineer securing Paystack's fintech platform. Collaborating with engineering and product teams to ensure security is embedded into everything built.

Posted 8/3/2026full-timeRemote • 🇳🇬 NigeriaMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in application security assessments, including web and mobile applications, API security, and secure coding practices. Proficient in SAST, DAST, and threat modeling frameworks, with a strong understanding of DevSecOps principles and cloud security concepts.

Highest-signal resume keywords

Application Security AssessmentSAST and DAST ExperienceThreat Modeling FrameworksSecure Software Development PracticesDevSecOps Principles

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Penetration TestingVulnerability AssessmentSecure Code ReviewPythonJavaScriptBashWeb Application SecurityAPI SecurityCloud SecurityCI/CD Security Integration

Soft Skills

Excellent Communication SkillsCollaborative Mindset

Tools & Technologies

OWASPNISTMITREAWSAzureGCP

Industry Keywords

Cybersecurity TrendsAttack Surface AnalysisVulnerability Lifecycle ManagementPost-Incident AnalysisSecurity Frameworks

Tech Stack

Tools & technologies

AWSAzureCloudCyber SecurityGoogle Cloud PlatformJavaScriptPython

About the role

Key responsibilities & impact

Conduct web and mobile application security assessments and API security testing
Perform threat modelling, secure code reviews, and attack surface analysis
Support SAST and DAST initiatives
Assist in managing the vulnerability lifecycle
Coordinate internal and external security assessments, ensuring proper scoping and timely delivery
Track and report on remediation progress
Ensure secure coding practices are followed
Collaborate with developers, testers, and business analysts to provide proactive security guidance during development sprints
Contribute to security frameworks, checklists, and guidelines (aligned with OWASP, NIST, MITRE)
Work on DevSecOps testing and protective controls
Assist in the investigation and resolution of application security incidents
Contribute to post-incident analysis and implement preventative measures
Stay informed about cybersecurity trends, emerging threats, and attack vectors
Research and contribute to the implementation of innovative security solutions
Identify process improvements to enhance the efficiency and effectiveness of security assessments.

Requirements

What you’ll need

Minimum 3 years in application security, IT security, or software development with a security focus
Hands-on experience with penetration testing, vulnerability assessments, and secure code reviews
Proven experience with SAST, DAST, and threat modelling frameworks
Practical knowledge of secure software development practices (OWASP Top 10, CWE)
Hands-on development experience or scripting ability (Python, JavaScript, Bash)
Strong understanding of web application security, API security, and cloud security concepts (AWS, Azure, or GCP)
Understanding of DevSecOps principles and CI/CD security integration
Excellent communication skills with the ability to explain complex security concepts to technical and non-technical audiences
Collaborative mindset with the ability to work cross-functionally.

Benefits

Comp & perks

Competitive compensation package and benefits
Stripe Equity compensation
Full medical coverage
Wellbeing stipend
Generous leave and sabbatical policies
Hybrid working environment
Smart, kind colleagues who’re invested in your growth.