Penetration Tester Jobs in Mexico City.
All active Penetration Tester roles based in Mexico City.
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As a key member of the Quality Assurance team, you will be responsible for ensuring the reliability, performance, and security of our software products. You will design, develop, and execute comprehensive test plans that allow our development teams to ship high-quality code with confidence and speed.
Key Responsibilities
- Quality Strategy: Develop and implement robust test strategies and test cases for new and existing features.
- Test Automation: Design, write, and maintain automated test scripts (UI and API) to increase testing efficiency and coverage.
- Agile Collaboration: Participate in Agile ceremonies (Sprint Planning, Stand-ups, Retrospectives) to provide "QA perspective" from the start of the development cycle.
- Defect Management: Identify, document, and track software defects to resolution using bug-tracking tools (e.g., Jira).
- Cross-Functional Communication: Communicate effectively with developers, product owners, and stakeholders to clarify requirements and report on software health.
- CI/CD Integration: Integrate automated tests into CI/CD pipelines to ensure continuous quality and rapid feedback loops.
- Root Cause Analysis: Perform thorough regression testing and root cause analysis when bugs are identified in production.
- Continuous Improvement: Proactively suggest improvements to the development process to prevent defects before they occur.
- Soft Skills: Demonstrate a detail-oriented mindset, professional curiosity, and a "quality-first" attitude.
Requirements
- Experience: Proven experience in Software Quality Assurance (Manual and Automated testing).
- Language: English proficiency is mandatory.
- Programming Skills: Proficiency in at least one programming language (e.g., Java, Python, or JavaScript) for automation purposes.
- Testing Frameworks: Hands-on experience with automation tools such as Selenium, Cypress, Playwright, or Appium.
- API Testing: Experience testing RESTful APIs using tools like Postman, SoapUI, or RestAssured.
- Databases: Basic to intermediate knowledge of SQL for data validation and backend testing.
- Version Control: Proficiency in Git and/or BitBucket.
- Documentation: Excellent skills in writing clear, concise, and comprehensive test plans and bug reports.
Preferred Qualifications (Pluses)
- Experience with Performance/Load Testing (e.g., JMeter, Locust).
- Knowledge of Security/Penetration Testing principles.
- Experience with Cloud Infrastructure (AWS, Azure, or GCP).
- Familiarity with Docker and Kubernetes for managing test environments.
LI-DC1
About Monks
Monks is the global, digital-first, data-driven, unitary operating brand of S4 Capital plc. With a legacy of innovation and specialized expertise, Monks combines an extraordinary range of global Marketing and Technology Services to redefine how brands interact with the world. Through Monks.Flow, its flagship AI ecosystem for marketing orchestration, Monks transforms marketing into a growth engine, collapsing timelines and connecting brands to culture in real time. By deploying bespoke intelligent agents across disciplines and delivering culturally relevant, high-impact creative and digital solutions, Monks solves key critical business challenges across the entire brand enterprise to help brands sustain long-term impact.
Monks was named a Contender in The Forrester Wave™: Global Marketing Services, ranks among Cannes Lions' Top 10 Creative Companies (2022-25) and remains the only partner featured in AdExchanger’s Programmatic Power Players list every year (2020-24). Named Adweek’s first AI Agency of the Year (2023) and The One Show’s inaugural AI Pioneer Organization, Monks was also awarded Business Intelligence Group’s 2025 Excellence in Artificial Intelligence Award in both the Organizational and AI Product categories. As a trusted partner to cutting-edge innovators in tech, Monks earned titles such as Optimizely Experimentation Partner of the Year (2025), runner-up for the Adobe Firefly Partner Award (2024), and Workato’s AI Visionary Customer Impact Award (2024). Additionally, Monks achieved a record-breaking number of FWAs and continues to hold the most of any partner.
We are an equal-opportunity employer committed to building a respectful and empowering work environment for all people to freely express themselves amongst colleagues who embrace diversity in all respects. Including fresh voices and unique points of view in all aspects of our business not only creates an environment where we can all grow and thrive but also increases our potential to produce work that better represents—and resonates with—the world around us.
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