Senior Security Engineer (Remote)

Lightning Labs; United States; Remote; USD 140,000 - 200,000; Full time

Job summary

Lightning Labs is seeking a Security Engineer for the ongoing scaling of our growing engineering organization. This is a hands‑on role that devises and implements policies and procedures around best practices in systems security.

The ideal candidate has experience in securing web, Bitcoin, and other public-facing network services, penetration testing, and both automated and manual source code security reviews.

Qualifications

• Minimum 5 years in systems security.
• Experience with high impact, fast-moving startup teams.
• Strong knowledge of OS and architecture internals.
• Deep understanding of cryptography and protocol design.
• Experience with reverse engineering of cryptographic protocols.

Responsibilities

• Designing and deploying testing infrastructure for security assessments.
• Conduct security audits of internal and open source software interfacing with Bitcoin/Lightning.
• Mentor teammates and guide security practices.
• Develop and maintain global security policies, standards, and procedures.
• Oversee security aspects of release processes and infrastructure.
• Define security requirements for future growth.
• Manage security incident response processes and risk assessments.

Skills

Go

Rust

C/C++

Java

Cryptography

Security incident response

Vulnerability triage

Penetration testing

Security reviews

Team leadership

Tools

Go

Rust

C/C++

Java

Job description

Lightning Labs is seeking to hire a Security Engineer for the ongoing scaling of our growing engineering organization. This is a hands‑on role that consists of devising and implementing policies and procedures around best practices in systems security. The ideal candidate has experience in securing web, Bitcoin, and other public-facing network services, penetration testing, and both automated and manual source code security reviews. Due to the domain in which we work, experience with Bitcoin and the Lightning Network is extremely desirable as is knowledge of the cryptographic aspects involved in this area.

As we are an international organization, experience and comfort working with highly distributed teams is a must. In addition, the ideal candidate should have a passion for our mission of bringing financial freedom to the world, as well as for Bitcoin as a whole. Although a part of the engineering organization, candidates in this position will work across functional team boundaries to ensure all aspects of the business are appropriately considered and covered by security best practices.

Responsibilities may include but are not limited to:

• Designing and deploying active fuzzing, black+white box testing and penetration testing infrastructure for open source and production systems

• Performing security audits and review of both internal production systems as well as open source software which interacts with Bitcoin+Lightning in a security critical manner

• Provide mentorship and guidance to level up your teammates

• Creating global security policy, standards, guidelines, and procedures to ensure ongoing maintenance of security

• Overseeing security aspects of software release processes and infrastructure

• Determining security team requirements for future growth

• Developing and ensuring responsiveness of security incident management processes

• Performing risk management assessments

Preferred experience:

• At least 5 years prior experience in in systems security

• An ability to work with a high impact, fast-moving startup team

• Extensive knowledge of operating system and computer architecture internals

• Strong understanding of cryptography, protocol design and adversarial analysis

• Experience in reverse engineering and exploiting of cryptographic protocol (cryptocurrencies like Bitcoin) systems

• Extensive expertise with professional software development experience in Go, Rust, C/C++, and/or Java

• Experience in security incident response

• Experience in security code review and vulnerability triaging

• Prior experience running an open source facing bug bounty program

• 2+ years management experience or experience as a senior decision maker

• Experience working with remote teams

• Experience working with Kubernetes and AWS infrastructure

• Working knowledge of fundamental Bitcoin and Lightning design principles

• Candidates with additional experience are welcome to apply as we are open to adjusting the role accordingly