Senior Anti-Abuse Security Engineer

Job not on LinkedIn

🕒 February 6

🏢🏡 Chicago – Hybrid

💵 $126k - $154k / year

⏰ Full Time

🟠 Senior

👮‍♂️ Cybersecurity / Security Engineer

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ActiveCampaign

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2013

☁️ SaaS

SaaS • Marketing

ActiveCampaign is an all-in-one platform designed to create and automate personalized customer experiences that help businesses grow. Their capabilities include marketing automation, omnichannel marketing, content creation, audience management, analytics, reporting, and AI integrations. The platform features tools for email marketing, dynamic content, segmentation, CRM, landing pages, and forms, allowing users to send personalized messages across various channels such as email, SMS, and ads. ActiveCampaign integrates with over 900 favorite marketing tools and applications to streamline customer engagement and optimize business operations in industries such as eCommerce, online education, healthcare, and more.

📋 Description

• Architect and implement automated behavioral analysis pipelines to detect trial abuse, account takeovers, and sophisticated sending pattern anomalies. • Build continuous risk scoring systems that evaluate customer accounts across their entire lifecycle to proactively identify emerging threats. • Develop a sender reputation tracking system that seamlessly integrates with email deliverability signals to safeguard our platform's reach. • Engineer advanced analysis capabilities for campaign content, including specialized tools for URL, image, and web-based threat detection. • Deploy complex detection logic and custom Python services, utilizing Sift rules to automate real-time security responses. • Collaborate with the Security Platform Engineering team to enhance the data pipelines feeding our core security and monitoring tools. • Design automated response workflows—from account suspension and campaign throttling to manual review queuing—to mitigate abuse at scale. • Partner with Product Security Engineering to instrument AI feature telemetry and build systems capable of detecting synthetic content and inauthentic behavior.

🎯 Requirements

• 5+ years of hands-on experience building robust fraud detection, abuse prevention, or security monitoring systems. • Expert-level Python development skills, with a proven track record of writing production-grade code integrated into large-scale systems. • Deep expertise in messaging abuse patterns, specifically regarding email/SMS phishing, spam, and the nuances of sender reputation. • A strong understanding of ML-based detection systems and behavioral analytics, with the ability to build automated detection at scale with limited resources. • Technical proficiency with modern abuse tooling (e.g., Sift) and ideally experience in content moderation or text/image analysis. • Prior experience in SaaS messaging, marketing automation, or Email Service Provider (ESP) platforms a bonus—you understand the unique abuse dynamics of our industry. • A collaborative mindset and the ability to work cross-functionally with engineering, product, and security teams to drive strategic security outcomes.

🏖️ Benefits

• Comprehensive Health & Wellness: Top-tier benefits package that includes a fully-covered High Deductible Health Plan (HDHP), complimentary access to telehealth services, and a free subscription to Calm. • Growth & Development: Access to LinkedIn Learning, professional development programs, and career growth opportunities in a fast-growing organization. • Generous Paid Time Off: Recharge and take the time you need to maintain work-life balance with open PTO. • Total Rewards: Generous 401(k) matching with immediate vesting, quarterly perks with commuter and lunch benefits for hub based employees or a stipend for remote workers, and a four-week paid sabbatical with bonus after five years. • Collaborative Culture: Work alongside brilliant, passionate colleagues in an environment that values innovation, teamwork, and mutual support.