Offensive Security Engineer jobs in United States
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LanceSoft, Inc. · 1 day ago

Offensive Security Engineer

LanceSoft, Inc. is seeking a Senior Offensive Security Engineer to enhance the security of their web platforms and AI/ML systems. The role involves conducting penetration tests, identifying vulnerabilities, and collaborating with various teams to improve security architecture.

Information Technology
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Growth Opportunities
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H1B Sponsor Likelynote
Hiring Manager
Nikunj Adwani
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Responsibilities

Conduct offensive security assessments on large-scale web applications, REST APIs, and cloud-backed services
Identify and validate vulnerabilities including injection flaws, access control issues, authentication/authorization weaknesses, SSRF, deserialization, and logic bugs
Evaluate LLM-based systems and AI agents for prompt injection, data exfiltration, model abuse and jailbreaks
Design and execute red team–style engagements simulating real-world adversaries
Develop custom exploitation tools, PoCs, and fuzzers for web and AI attack surfaces
Identify systemic security weaknesses and collaborate with engineering teams to drive long-term mitigations
Review architectures and designs for new products with an attacker mindset
Produce clear, actionable security reports and present findings to technical and executive stakeholders

Qualification

Offensive securityPenetration testingWeb application securityAPI securityScripting languagesExploitation techniquesCloud securityAdversarial MLSecurity researchOSCP certification

Required

Master's degree in Computer Science, Computer Engineering, Information Security, or a closely related technical field
5+ years of experience in offensive security, penetration testing, or red teaming
Deep expertise in web application security
Strong understanding of API security
Hands-on experience testing AI/ML or LLM-based systems, or strong motivation with demonstrated research in this area
Proficiency in at least one scripting or programming language (Python, Go, JavaScript, or similar)
Strong knowledge of common exploitation techniques and attacker tooling

Preferred

Prior work on adversarial ML, red-teaming AI systems, or secure LLM pipeline design
Experience with cloud security (AWS, GCP, Azure) and containerized environments
Background in security research, published CVEs, CTF experience, blog posts, or conference talks
OSCP, OSEP, OSWE, CRTO, or similar

Company

LanceSoft, Inc.

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Established in 2000, LanceSoft is a pioneer in delivering top-notch Global Workforce Solutions and IT Services to a diverse clientele.

H1B Sponsorship

LanceSoft, Inc. has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (55)
2024 (32)
2023 (23)
2022 (25)
2021 (60)
2020 (80)

Funding

Current Stage
Late Stage

Leadership Team

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Ram Karuppusamy
Chairman & CEO
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Simon Dealy
Chief Financial Officer
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Company data provided by crunchbase