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RecargaPay

All-in-one Brazilian mobile payments platform

Offensive Security Specialist

Offensive Security & TestingPosted on Nov 12
Full-timeRemote in Brazil

About the Job

Requirements

  • Experience technically leading an Application Security or offensive testing program at a product company, including end-to-end vulnerability management with engineering, business-risk prioritization, and indicators reported to leadership.
  • Expertise in web application and API (REST/GraphQL) penetration testing, including business logic, authentication, authorization (IDOR/BOLA), and attack chains.
  • Security code review in at least one backend language: Java, Kotlin, Go, Python, or Node.js, and architecture-level threat modeling.
  • Development of custom automation and tools in Python or Go, with practical use of artificial intelligence (LLMs or agents) in security work such as triage, code review, or testing.
  • Education in technology or related areas, or equivalent experience.
  • Technical English sufficient to read documentation, advisories, and research.

Responsibilities

  • Serve as the technical reference for the Offensive Security team, defining how it protects applications, financial products, and artificial-intelligence assets, from testing strategy and vulnerability management to architecture review of critical initiatives.
  • Define the team's technical Application Security and offensive testing strategy, including methodology, coverage of applications and artificial-intelligence assets, business-risk prioritization, and indicators.
  • Own the application vulnerability-management program, ensuring business-critical issues involving financial loss and customer-data exposure are remediated on schedule, and negotiate with engineering leadership as needed.
  • Conduct threat modeling and architecture reviews for the company's most critical initiatives, including Pix, credit, cards, and artificial-intelligence agents, influencing design decisions before development.
  • Plan and execute complex penetration tests of web applications and APIs, focusing on business logic and attack chains, and turn recurring findings into controls and regression tests.
  • Define the scope of external penetration tests and the annual PCI DSS cycle, and act as the technical reference for triaging external findings from bug bounty programs, consultancies, and external reports.
  • Lead the evolution of the team's automation and artificial-intelligence agents to scale code review, triage, and security testing across engineering.
  • Represent the team technically in audits and with partner teams and leadership, translating technical risk into business decisions.
  • Serve as the team's technical reference and the manager's technical substitute, mentoring senior and mid-level colleagues.

Desired Qualifications

  • Experience with security of LLMs, agents, and MCPs, including prompt injection, tool abuse, and data exposure.
  • Experience with Android and iOS mobile penetration testing using Frida, objection, and Burp Suite.
  • Experience in a regulated financial environment, including PCI DSS, LGPD, BACEN, and audits.
  • Certifications such as OSWE, BSCP, or OSCP, or equivalents, and public contributions such as CVEs, research, or talks.

About the Company

RecargaPay

All-in-one Brazilian mobile payments platform

RecargaPay is a Brazilian, all-in-one mobile payments platform that lets users pay bills and send money from their smartphones. Users can perform Pix payments with a credit card and transfer funds without card machines or bank details. The service offers cashback on purchases at retailers like iFood, Amazon, and Casas Bahias, plus gift cards and prepaid TV with cashback. Its revenue comes from transactional fees and a Prime+ subscription, and it has expanded into small loans after Central Bank approval to operate as a Direct Credit Society.

Company size
501-1,000
Company stage
Debt Financing
Total funding
$165.1M
Headquarters
São Paulo, Brazil
Founded
2010

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