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The Role
The Senior Detection Engineer will architect scalable detection systems, develop automation for security response, and collaborate cross-functionally to enhance security measures.
Summary Generated by Built In
On a typical day, you might:
- Design and deploy sophisticated detection logic across our entire technology stack using detection-as-code principles like YARA-L, Sigma, and KQL.
- Build automated response workflows that independently enrich, triage, and remediate security alerts, effectively eliminating manual toil through advanced SOAR principles.
- Investigate complex security signals—such as novel attack patterns or phishing campaigns—that require deep human judgment and strategic intuition.
- Collaborate cross-functionally with DevOps and Security Engineering teams to adapt detection logic to infrastructure changes before security blind spots can emerge.
- Leverage AI and LLMs as force multipliers to accelerate threat hunting, generate new detection hypotheses, and automate repetitive investigative tasks.
- Lead post-incident reviews with engineering partners, transforming security findings into preventative architectural changes that harden our long-term defense.
- Prototype and test emerging detection capabilities and data sources, ensuring we stay ahead of the threat landscape while participating in an on-call rotation to defend our most critical systems.
What is needed:
- 5+ years of hands-on experience in detection engineering, incident response, or security operations within high-growth technology environments.
- Advanced programming proficiency in Python, with a proven ability to build production-quality security automations and custom integrations from scratch.
- Deep expertise in Cloud Security (AWS), including a comprehensive understanding of IAM, VPC, CloudTrail, and Lambda attack vectors.
- Mastery of detection logic in at least two major languages, such as YARA-L, Sigma, KQL, or SPL.
- A track record of building SOAR workflows or equivalent automation platforms that measurably reduce operational overhead at scale.
- Exceptional communication skills, with the ability to distill complex security risks into actionable insights and influence technical decisions across the organization.
- Experience using AI/LLMs as a strategic tool for threat analysis, investigation automation, and increasing the velocity of security work.
- A self-directed, engineering-first mindset, ideally with a background in SRE, DevOps, or platform engineering and a history of contributing to open-source security projects.
About ActiveCampaign:
ActiveCampaign is the autonomous marketing platform for people at the heart of the action. It empowers teams to automate their campaigns with AI agents that imagine, activate, and validate–freeing them from step-by-step workflows and unlocking limitless ways to orchestrate their marketing.
With AI, goal-based automation, and 1,000+ app integrations, agencies, marketers, and owners can build cross-channel campaigns in minutes–fine-tuned with billions of data points to drive real results for their unique business.
ActiveCampaign is the trusted choice to help businesses unlock a new world of boundless opportunities–where ideas become impact and potential turns into real results.
As a global multicultural company, we are proud of our inclusive culture which embraces diverse voices, backgrounds, and perspectives. We don’t just celebrate our differences, we believe our diversity is what empowers our innovation and success. You can find out more about our DEI initiatives here.
Perks and benefits:
At ActiveCampaign, we prioritize employees’ well-being and professional growth by cultivating a culture centered on collaboration and innovation. When you join our team, you’ll not only have the opportunity to make a significant impact, but also enjoy a range of benefits tailored to support your personal and career development.
Here are some of the benefits we offer:
-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.
ActiveCampaign is an equal opportunity employer. We recruit, hire, pay, grow and promote no matter of gender, race, color, sexual orientation, religion, age, protected veteran status, physical and mental abilities, or any other identities protected by law.
Our Employee Resource Groups (ERGs) strive to foster a diverse inclusive environment by supporting each other, building a strong sense of belonging, and creating opportunities for mentorship and professional growth for their members.
Skills Required
- 5+ years of hands-on experience in detection engineering or security operations
- Advanced programming proficiency in Python
- Deep expertise in Cloud Security (AWS)
- Mastery of detection logic in two major languages like YARA-L, Sigma, KQL
- A track record of building SOAR workflows or equivalent automation platforms
- Exceptional communication skills for distilling complex risks
- Experience using AI/LLMs as a strategic tool for threat analysis
- Self-directed, engineering-first mindset with background in SRE or DevOps
ActiveCampaign Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about ActiveCampaign and has not been reviewed or approved by ActiveCampaign.
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Healthcare Strength — Health coverage is portrayed as comprehensive, spanning medical, dental, vision, mental‑health support, and telemedicine, with an option noted for a fully covered HDHP. Wellbeing resources like an EAP and Calm subscription complement core coverage.
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Leave & Time Off Breadth — Open/unlimited PTO, Volunteer Time Off, and a paid sabbatical after five years indicate a wide range of time‑off options. Hybrid/remote flexibility and work‑from‑home support reinforce the usability of these policies.
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Equity Value & Accessibility — Equity is granted at hire broadly, positioning ownership as a standard element of total compensation. This signals accessible participation in company value creation alongside salary and benefits.
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The Company
What We Do
ActiveCampaign helps small teams power big businesses with the must-have platform for intelligent marketing automation. Customers from over 170 countries depend on ActiveCampaign’s mix of pre-built automations and integrations (including Facebook, Google, WordPress, Salesforce, Shopify, and Square) to power personalized marketing, transactional emails, and one-to-one CRM interactions throughout the customer lifecycle. ActiveCampaign holds the highest customer satisfaction rating among Marketing Automation, E-Commerce Personalization, Landing Page Builders, and CRM solutions on G2.com and is one of only a handful of software solutions with over 10,000 positive reviews. ActiveCampaign has also been named the Top Rated Email Marketing Software on TrustRadius. Learn more and start your free trial at ActiveCampaign.com.
Why Work With Us
We are focused on our employees, our customers, and even our customer's customers. Ideas are valued over titles, contributions are valued over appearances, helping a co-worker is more important than outshining them. We are passionate about diversity and inclusion, believing everyone has a voice and can make a difference.
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