Cloudwalk
Cloudwalk15d ago

Offensive Security Engineer

São Paulo,São PauloRemoteFull Time - remotemid
SecurityOffensive Security EngineerCybersecurity
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Quick Summary

Overview

About the RoleThis is not a traditional pentesting role. At CloudWalk, you’ll go beyond running scans or writing reports. You’ll break into systems, exploit real weaknesses,

Technical Tools
SecurityOffensive Security EngineerCybersecurity
About the Role

This is not a traditional pentesting role. At CloudWalk, you’ll go beyond running scans or writing reports. You’ll break into systems, exploit real weaknesses, and then engineer automations and agents to make sure those classes of vulnerabilities never come back. Your work will directly shape how CloudWalk defends itself at scale, turning offensive security knowledge into defensive engineering.
You’ll be part of a team that blends red teaming, mobile/web pentesting, and security automation. If you enjoy moving fast, exploiting hard problems, and coding the solutions, this role is for you.
  • Break things that matter. Pentest applications across our stack, identifying vulnerabilities in APIs, mobile apps (Android/iOS), and infrastructure before attackers do.
  • Run red team operations. Plan and execute realistic attack campaigns: phishing with custom domains, social engineering, lateral movement, privilege escalation. Measure real organizational resilience, not checkbox compliance.
  • Build offensive tooling. Engineer security platforms, scanning pipelines, and automation that multiply the team's impact.
  • Weaponize AI for defense. Design and build LLM-powered agents that detect, classify, triage and fix vulnerabilities in real time.     
  • Strong knowledge of common vulnerabilities, exploitation techniques, and secure coding practices. You can find bugs in source code, not just with a proxy.                 
  • Experience with web application and API pentesting. Mobile pentesting (Android/iOS) is a strong plus.
  • You code daily. Proficiency in Typescript, Go, or similar, not just scripts, but tools and services others can rely on.                                                    
  • Familiarity with cloud infrastructure security (GCP/AWS/Azure), Kubernetes, and service mesh concepts.
  • Understanding of CI/CD pipelines and how to embed security checks into them.                                                                                               
  • Experience leveraging LLMs or AI agents for security tasks.
  • Excellent communication and collaboration skills to work effectively with engineering teams.     
  • Experience with red team operations: phishing infrastructure, social engineering, C2 frameworks.                                                                           
  • Familiarity with payment industry security (PCI DSS, card tokenization, acquiring flows).                                                                                  
  • Experience building security platforms or internal tooling (dashboards, bots, vulnerability management systems).                                                           
  • Contributions to open source security tools, published security research or CTFs.       
  • Location & Eligibility

    Where is the job
    Worldwide
    Fully remote, anywhere in the world
    Who can apply
    Same as job location
    Listed under
    Worldwide

    Listing Details

    Posted
    April 14, 2026
    First seen
    April 14, 2026
    Last seen
    April 29, 2026

    Posting Health

    Days active
    14
    Repost count
    0
    Trust Level
    44%
    Scored at
    April 29, 2026

    Signal breakdown

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    Cloudwalk

    CloudWalk is a global financial technology company that pioneers AI and blockchain-driven solutions, including payment processing and digital banking, through its brands InfinitePay (Brazil) and JIM.com (U.S.).

    Employees
    750
    Founded
    2013
    View company profile
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    CloudwalkOffensive Security Engineer