Linux Systems Developer OpenSSL C
- London
- Permanent·Hybrid
- Full time
- £75,000 - £85,000 Per Annum
Job Description
Linux Systems Developer / Engineer (OpenSSL C) London to £85k
Do you have a deep knowledge of Linux combined with OpenSSL?
You could be progressing your career at a successful and expanding software house that provide cyber security products to a range of finance, government, defence, law enforcement and pharmaceutical companies.
As a Linux Systems Developer you'll join a core Linux team in a newly created role, taking ownership of developing and maintaining secure, reliable software at operating system level. You'll work across Linux security mechanisms, kernel-level hardening and cryptographic technologies, applying security-by-design principles throughout the development lifecycle.
This is a specialist engineering role suited to someone who enjoys working close to the operating system and tackling complex security challenges. You'll use C as your primary language, with Bash for scripting, developing robust, maintainable software and contributing to technical design and code reviews. A key focus will be assessing and strengthening the security of the Linux platform, including in-depth work with OpenSSL, X.509 certificates and PKI, as the organisation works towards Common Criteria certification.
Location / WFH:
You can work from home most of the time, meeting up with an international team, in Central London offices once a week.
About you:
- You have strong programming experience in C, including debugging, memory management and system-level programming
- You're highly proficient with Bash scripting for automation, tooling, testing and integration
- You have a deep understanding of Linux operating systems, especially Debian based ones, system services, process management, permissions and system administration
- You have a good knowledge of OpenSSL (both on the command line and programmatically), X.509 certificates and PKI fundamentals
- You understand Linux security mechanisms including seccomp, udev and auditd
- You have a good knowledge of Linux privilege management, capabilities, access controls and application isolation
- You have a strong understanding of secure software development practices, threat mitigation and common security vulnerabilities
- You're keen to take ownership, work independently, solve complex technical problems and communicate technical concepts clearly
What's in it for you:
- Salary to £85k + OTE
- 25 days holiday, rising to 27 in two years, ability to buy 5 days per year
- Private Medical Care, Life Cover, Pension
- Subsidised gym membership
- Hybrid working
Apply now to find out more about this Linux Systems Developer / Engineer (OpenSSL C) opportunity.


