S

SpotOn

Payment processing and customer engagement platform

Senior Application Security Engineer

Security Engineering & ArchitectureConfirmed live in the last 24 hours
Full-timeKraków, PolandPLN18.9k - PLN23.7k /mo

About the Job

Requirements

  • A bachelor's degree in Computer Science, Information Security, or a related field, or equivalent practical experience.
  • At least 5 years of experience in application security, secure code review, or a closely related engineering or security discipline.
  • Availability to work in a hybrid work model.
  • Experience building or owning security metrics and reporting, ideally communicating program health to non-technical or executive audiences.
  • Hands-on experience with SAST, DAST, and SCA tooling, and vulnerability management platforms such as DefectDojo.
  • Experience coordinating or directly performing penetration testing, including working with external testing vendors.
  • Familiarity with container security concepts and admission control, using Wiz or an equivalent tool.
  • Working knowledge of AWS security services and cloud-native application architectures.
  • Ability to work with minimal day-to-day direction and exercise independent judgment within established security practices.
  • Strong written and verbal communication skills, including translating technical findings into a business-relevant narrative for leadership.

Responsibilities

  • Define and own the AppSec program metrics framework, including what is measured, why it matters, and how it relates to risk reduction; examples include mean time to remediate by severity, finding density trends, scan coverage, penetration-test finding recurrence, and PR security review adherence.
  • Establish baselines for each metric and track program trajectory over time.
  • Build recurring monthly or quarterly reports that translate raw data into an actionable narrative for leadership.
  • Prepare materials for the Head of Security to present to executive leadership, showing program trajectory and initiative impact.
  • Own and maintain the AppSec scanning stack, including SAST, DAST, dependency (SCA), and secrets-detection tools across the repository portfolio.
  • Ensure scanner findings are accurately displayed in the inventory system for engineering visibility.
  • Tune scanner configurations to reduce noise and false positives, and maintain detection coverage as repositories and services are onboarded.
  • Establish and maintain a consistent PR review practice for security-relevant changes, and track and report adherence as a core program metric.
  • Lead and coordinate application penetration-testing engagements with a third-party vendor, from scoping through remediation tracking.
  • Serve as the primary point of contact for developers with questions about penetration-test findings.
  • Track penetration-test outcomes across successive engagements to measure whether previous findings remain fixed.
  • Design and implement new AppSec initiatives, including AI-specific penetration testing and formal threat-modeling practices.
  • Define success metrics for each new initiative before launch so its impact can be measured.
  • Implement and maintain image trust enforcement.
  • Partner with Infrastructure/DevOps to ensure image signing and trust policies do not create unnecessary friction in the deployment pipeline.

Desired Qualifications

  • Experience presenting security metrics or dashboards to executive stakeholders.
  • Experience with threat-modeling frameworks such as STRIDE, PASTA, or similar.
  • Exposure to AI/ML security testing or red-teaming.
  • PCI DSS familiarity.

About the Company

SpotOn

Payment processing and customer engagement platform

SpotOn provides payment processing solutions and integrated customer engagement tools tailored for small businesses such as restaurants, retail stores, and service providers. It offers an end-to-end digital platform that helps businesses get paid faster, increase revenue, and improve efficiency by unifying payments, loyalty, booking, and ordering with operational tools into one system. Transactions generate revenue for SpotOn through processing fees and subscription fees for software services, while its consumer-facing app connects customers to merchants for deals, rewards, appointments, and orders. Compared with competitors, SpotOn combines payment processing with a wide suite of engagement and business-management tools in a single, easy-to-use platform backed by 24/7 customer support. The company’s goal is to help small businesses grow by simplifying payments, boosting customer engagement, and streamlining operations.

Company size
1,001-5,000
Company stage
Series F
Total funding
$915M
Headquarters
San Francisco, CA
Founded
2010

Recently Posted Jobs

Explore more opportunities at SpotOn

See more jobs