Senior Software Engineer (Security)

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Software Engineer (Security) in Switzerland.

As a Senior Software Engineer specializing in security, you will be instrumental in designing and implementing robust security features across large-scale platforms. You will work closely with product and engineering teams to enhance platform safety, prevent abuse, and ensure resilience against emerging threats. This role emphasizes hands-on development, including coding, testing, and documentation of secure software. Your work will directly impact millions of users by protecting critical systems and maintaining trust. You will operate in a remote, collaborative environment that encourages transparency, continuous learning, and innovation. The ideal candidate combines deep security expertise with practical software engineering experience to drive operational excellence and secure product growth.

Accountabilities

• Design, develop, and deliver security-focused features with an emphasis on user safety and system integrity
• Collaborate with engineering teams to ensure secure architectural and implementation decisions
• Lead by example in code review, technical decision-making, and fostering a culture of transparency and collaboration
• Maintain and enhance security-critical components, addressing technical debt and vulnerabilities
• Provide support for application security incidents and ongoing operational security needs
• Review, test, and deploy security features developed internally or by community contributors
• Mentor and guide less experienced engineers on security best practices and secure software development
  
  

Requirements

• 5+ years of experience as a software engineer, with a focus on security
• Proficiency in modern PHP and JavaScript codebases
• Experience designing and implementing security features for large-scale systems
• Ability to develop proofs of concept, write design documents, and decompose complex projects into actionable tasks
• Strong understanding of secure software development, threat modeling, and security best practices
• Excellent communication skills for explaining complex security issues to technical and non-technical audiences
• Experience in remote and distributed team environments
• Nice-to-have: experience with anti-abuse mechanisms (CAPTCHA, bot detection), database and backend security, MediaWiki or similar platforms, open-source contributions, or formal security certifications
  
  

Benefits

• Competitive compensation based on experience and location
• Fully remote work with flexible scheduling
• Opportunity to contribute to a platform impacting millions of users globally
• Collaborative and inclusive team culture
• Continuous learning and professional development opportunities
• Chance to lead and shape security practices in a high-impact, mission-driven environment
  
  

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.