Senior Engineer, Security

Taptap Send

. Remediate security findings across infrastructure by writing Terraform and application changes .

Posted 9/29/2026full-timeRemote • New York • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in security engineering, particularly in AWS security, vulnerability management, and incident response. Proficient in writing Terraform and Python code to remediate security findings and enforce technical security baselines.

Highest-signal resume keywords

AWS Security ExperienceTerraform ProficiencyVulnerability ManagementSecurity Incident ResponseApplication Security Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

TerraformPythonVulnerability ManagementThreat ModellingForensic InvestigationApplication SecurityCI/CD Pipeline SecurityCryptographySecrets ManagementDetection Engineering

Tools & Technologies

DatadogSnykProwlerECSEKSGitHub Actions

Certifications & Qualifications

ISO 27001PCI DSSSOC 2

Industry Keywords

Security EngineeringCloud SecurityDigital AssetsPaymentsRegulated Environment

Tech Stack

Tools & technologies

AWSCloudPythonTerraform

About the role

Key responsibilities & impact

Remediate security findings across infrastructure by writing Terraform and application changes
Drive remediation to completion when fixes belong to other teams
Run vulnerability management from Snyk, Prowler, and ASV findings through verified fixes
Own AWS security posture across IAM, least privilege, network boundaries, secrets management, and logging coverage
Define and enforce technical security baselines as code, including host hardening, WAF configuration, and deployment patterns
Conduct regular penetration testing against the company’s environment
Perform threat modelling and security reviews for new services and integrations with payment and custody providers
Serve as technical lead for security incidents, including forensic investigations
Own and improve Datadog detection coverage and tune alerts for meaningful signals
Report into Platform Engineering and work closely with the CISO, who sets the security agenda and serves as the escalation route

Requirements

What you’ll need

Five or more years in hands-on security engineering with responsibility for production systems
Ability to write and ship code using Terraform and Python
Application fluency sufficient to remediate vulnerabilities directly
Deep AWS security experience, including IAM and least privilege at organization scale
Experience with container workloads in ECS or EKS
Application security experience, including threat modelling and hands-on offensive testing against cloud and application targets
Security incident response, including forensic investigation
Experience running vulnerability management and driving fixes through teams not directly managed
Experience working in a regulated environment and translating ISO 27001, PCI DSS, or SOC 2 requirements into engineering work
Detection engineering in Datadog or a comparable SIEM
Experience securing CI/CD pipelines, particularly GitHub Actions
Practical cryptography and secrets management experience, including key rotation and certificate lifecycle
Experience using AI coding tools to remediate at scale and reviewing AI-generated code from a security perspective
Experience with payments, cards, or digital assets

Benefits

Comp & perks

Equal opportunity employer committed to an inclusive and diverse workforce
Reasonable adjustments during the recruitment process
Voluntary diversity survey; participation does not affect the job application