ActiveCampaign · 5 hours ago
Senior Anti-Abuse Security Engineer
Chicago
Full-time
Hybrid
Mid, Senior Level
$126K/yr - $154K/yr
5+ years expActiveCampaign is the autonomous marketing platform for people at the heart of the action. They are seeking a Senior Anti-Abuse Security Engineer who will architect and implement advanced automated behavioral analysis pipelines to protect their platform from abuse and threats, ensuring a secure environment for users.
AppsEmail MarketingMarketing AutomationSoftware
Responsibilities
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
Qualification
Required
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 collaborative mindset and the ability to work cross-functionally with engineering, product, and security teams to drive strategic security outcomes
Benefits
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.
Access to LinkedIn Learning, professional development programs, and career growth opportunities in a fast-growing organization.
Recharge and take the time you need to maintain work-life balance with open PTO.
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.
Work alongside brilliant, passionate colleagues in an environment that values innovation, teamwork, and mutual support.
Company
ActiveCampaign
ActiveCampaign specializes in email marketing, transactional email, marketing automation, and sales automation.
1001-5000 employees
H1B Sponsorship
ActiveCampaign has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (9)
2024 (10)
2023 (8)
2022 (22)
2021 (11)
2020 (4)
Funding
Current Stage
Late StageTotal Funding
$360MKey Investors
Tiger Global ManagementSusquehanna Growth EquitySilversmith Capital Partners
2021-04-21Series C· $240M
2020-01-28Series B· $100M
2016-10-11Series A· $20M
Leadership Team
Jason VandeBoom
Founder & CEO
Joy Whinery
Chief Financial Officer
Recent News
2026-02-05
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2026-02-03
Company data provided by crunchbase