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LanceSoft, Inc.

Penetration Tester

LanceSoft, Inc.
Poland · Contract · Mid-Senior

Role: Penetration tester

Duration: 12 months contract (Extendable)

Location: Warsaw, Poland


HOW YOU WILL FULFILL YOUR POTENTIAL

• Perform penetration tests and find impactful vulnerabilities in a wide variety of web applications, cloud-based systems, and infrastructure platforms (e.g. banking websites, payment applications, authentication systems, core internal frameworks, critical infrastructure)

• Work with teams to recommend ways of addressing vulnerabilities and propose systematic improvements.

• Grow and share your knowledge with the community of internal pentesters.

SKILLS AND EXPERIENCE WE ARE LOOKING FOR

• Experience in penetration testing across the mentioned areas.

• Strong understanding of web security topics, ability to build exploit chains and articulate impact of individual findings.

• Experience in analysing complex infrastructural systems by code review, server and cloud configuration analysis, reverse engineering and fuzzing.

• Working knowledge of common security tools (Burp Suite, Wireshark, Ghidra, netcat)

• Familiarity with one or more languages (Java, Javascript, Python, C++, C#)

• Well versed with TCP/IP stack and network protocols

• High level knowledge of cryptography concepts

PREFFERED QUALIFICATIONS

• Experience in adopting or crafting custom proof of concept exploits

• Knowledge of common cloud products and solutions

• Bachelor of Science in Computer Science, Cyber-Security, or Information Security is preferred

• Experience or trainings in related disciplines e.g. computer security, network security, network device management, IT administration, cloud security, infrastructure pentesting is preferred

• Certificates (of equivalent knowledge) like OSCP, OSEP, OSWP

Key Skills

Ranked by relevance

cloud reverse engineering penetration testing network security cloud security javascript burp suite wireshark python server java oscp c
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Posted
Jun 20, 2025
Type
Contract
Level
Mid-Senior
Location
Warsaw

Industries

IT Services IT Consulting

Categories

Engineering

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