Offensive Security Engineer

????????: One of the companies we work with at Joppy, a TOP Startup, is looking for an Offensive Security Engineer to join the team.
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Perform proactive penetration testing across company's applications, APIs, infrastructure, and AI-powered features.
Reproduce and validate vulnerability reports submitted by third parties, like our bug bounty program.
Collaborate with development teams to remediate security findings and enhance secure coding practices.
Improve how we validate, triage, and remediate vulnerabilities from bug bounty reports, internal testing, automated controls, and external research.
Hunt for recurring or legacy vulnerability patterns based on root cause analysis, previous incidents, and security findings.
Build and improve security automations, agents, skills, and CI/CD controls that help engineering teams catch and fix issues earlier.
Help secure company's use of AI across product and internal workflows, including LLMs, agents, data access, tools, permissions, and abuse scenarios.
Contribute to the development of our security tools, automations, and infrastructure.
Stay up-to-date with the latest security research, threats, attack techniques, and emerging AI security risks.
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You have 4+ years of professional experience in Application Security, Offensive Security, or Penetration Testing.
Web Application Penetration Testing experience is mandatory.
You hold a degree in Engineering or Computer Science and have strong knowledge of web applications, databases, network protocols, and operating systems.
You possess strong knowledge in cybersecurity fundamentals, CVSS, testing methodologies, and tooling.
You are fluent with scripting or programming languages used in security testing and automation, such as Python or Bash.
You are technical, curious, and comfortable moving across different security problems instead of specializing in only one area.
You like to attack systems, but you also enjoy building tools, automations, guardrails, and practical solutions that make security scale.
You do not need to be an expert in every technology, but you should be able to reason critically, learn fast, use AI effectively, and design pragmatic solutions.
You have curiosity and willingness to learn about AI security topics such as LLM testing, prompt injection, agentic workflows, data exposure, tool permissions, RAG security, and secure AI adoption.
Fluency in English is required.
????? ??????: Certifications like BSCP or eWPTX are highly regarded but not mandatory; Experience with Ruby / Ruby on Rails applications is highly regarded, but not mandatory
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Collaborative, multicultural, and high-growth work environment
Private health insurance
Access to gym, pools, and wellness programs
Savings on expenses
Language classes
Office breakfasts and organic fruit
Exclusive discounts on meals
Free coffee and tea
Pet-friendly environment
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