Senior Software Security Engineer

GitLab

Senior Software Security Engineer at GitLab improving abuse detection and prevention systems. Building features for Ruby on Rails platform and collaborating on security enhancements.

Posted 7/21/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $139,200 - $196,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong software development skills in Ruby on Rails, with a focus on building and maintaining abuse prevention systems. Proficient in cloud native development, particularly with Google Cloud Platform and AWS, while fostering collaboration to enhance platform security and mitigate abuse.

Highest-signal resume keywords

Ruby On Rails DevelopmentCloud Native DevelopmentAbuse Prevention SystemsAI Native DevelopmentAutomation Process Improvement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software DevelopmentRubyRailsCloud EnvironmentsGoogle Cloud PlatformAWSAI DevelopmentAutomationCode ReviewSecurity Engineering

Soft Skills

Proactive Problem SolvingCollaborationRemote Work Adaptability

Tools & Technologies

Abuse Mitigation ToolsDocumentation Tools

Industry Keywords

Platform AbuseSpam DetectionSEO OptimizationTrust and SafetyHITL Operational Load

Tech Stack

Tools & technologies

AWSCloudGoogle Cloud PlatformRubyRuby on Rails

About the role

Key responsibilities & impact

Maintain core abuse prevention systems and build new abuse detection rules to identify and prevent evolving platform abuse such as spam, AI/token, SEO optimization/redirects and other financially motivated abuse campaigns.
Become a core maintainer for our in-house abuse platform (Ruby on Rails monolith) and be comfortable supporting and building new features for the platform.
Improve and expand agentic AI capabilities in our abuse mitigation tools, including improving multi agent reasoning decision patterns with a target to reduce HITL operational load.
Lead collaboration with peer engineering teams to deliver safety improvements for the GitLab product
Resolve automation gaps and create efficient, automated processes
Create and maintain documentation such as runbooks and procedures

Requirements

What you’ll need

Strong software development skills with experience in Ruby/Rails
Experience working on distributed applications with large codebases and deployed in cloud environments strongly preferred
Passion/desire to proactivity develop security engineering skills
Comfortable working in an all remote environment where results and impact matter above hours worked
Strong experience with cloud native development (Google Cloud Platform (GCP) and/or AWS)
Interest in “thinking like a hacker” and defending against attacks with an “automation first” mindset
Interest in handling trust and safety security incidents and collaborating with engineering to harden platform defenses to combat abuse campaigns
Experience working on an AI native development team maintaining teams of agents and acting as a code reviewer and experience abstracting your role away from writing code for most cases.

Benefits

Comp & perks

Benefits to support your health, finances, and well-being
Flexible Paid Time Off
Team Member Resource Groups
Equity Compensation & Employee Stock Purchase Plan
Growth and Development Fund
Parental Leave