Senior Detection Engineer II

We're transforming the grocery industry At Instacart, we invite the world to share love through food because we believe everyone should have access to the food they love and more time to enjoy it together. Where others see a simple need for grocery delivery, we see exciting complexity and endless opportunity to serve the varied needs of our community. We work to deliver an essential service that customers rely on to get their groceries and household goods, while also offering safe and flexible earnings opportunities to Instacart Personal Shoppers. Instacart has become a lifeline for millions of people, and we’re building the team to help push our shopping cart forward. If you’re ready to do the best work of your life, come join our table. Instacart is a Flex First team There’s no one-size fits all approach to how we do our best work. Our employees have the flexibility to choose where they do their best work—whether it’s from home, an office, or your favorite coffee shop—while staying connected and building community through regular in-person events. Learn more about our flexible approach to where we work. Overview Instacarts Detection Engineering team sits at the core of our Security organization, building and operating the systems that identify, surface, and respond to threats across one of North America's largest grocery technology platforms. We own the full detection lifecycle, from telemetry collection and signal design to automated response, across a complex, cloud-native environment spanning endpoint, cloud, container, and SaaS. As a Senior Detection Engineer II, you'll be a technical anchor on the team: developing high-fidelity detection logic, hunting for novel attacker techniques, and raising the bar for how we think about coverage, quality, and scale. You'll work closely with Engineering, Red Team, Incident Response, Fraud, and Trust & Safety to ensure our detections reflect real-world adversary behavior; not just signatures. We operate with a detection-as-code mindset: everything we build is versioned, tested, and deployed through repeatable pipelines. We care deeply about reducing noise, improving analyst efficiency through automation and SOAR, and continuously evolving our coverage as the threat landscape shifts. If you're energized by hard forensic problems, enjoy translating attacker TTPs into durable detection logic, and want to help shape the future of a growing security function, this role is for you. About the Job Develop, tune, document, and maintain detection logic across multiple log sources including endpoint, cloud, container, and SaaS products. Assist in cyber forensic investigations across a variety of log sources Optimize log ingestion pipelines and telemetry collection to ensure high-quality, actionable security data while managing volume and cost Design and build SOAR playbooks and automation workflows to streamline detection triage, enrichment, and response actions Mentor junior security analysts and detection engineers on threat hunting methodologies, detection logic development, and investigation techniques About You Minimum Qualifications 6+ years of experience in a detection engineering, incident response, or offensive security role. Experience with 1 or more public cloud platforms (AWS, Azure, GCP) Deep understanding of attacker TTPs across modern zero trust environments, including identity compromise, token theft, and abuse of trust boundaries Proficient understanding of macOS internals and telemetry available to identify macOS specific threats Experience implementing detection-as-code workflows including version control, peer review processes, automated testing, and CI/CD deployment pipelines Basic proficiency with Python, Golang, or other programming languages Relevant certifications: GCFA, GCFE, GNFA, GREM, OSCP, GCIA, or similar Preferred Qualifications Background in offensive security or red teaming Knowledge of machine learning for threat detection #LI-Remote Instacart provides highly market-competitive compensation and benefits in each location where our employees work. This role is remote and the base pay range for a successful candidate is dependent on their permanent work location. Please review our Flex First remote work policy here. Currently, we are only hiring in the following provinces: Ontario, Alberta, British Columbia, and Nova Scotia. Offers may vary based on many factors, such as candidate experience and skills required for the role. Additionally, this role is eligible for a new hire equity grant as well as annual refresh grants. Please read more about our benefits offerings here. For Canadian based candidates, the base pay ranges for a successful candidate are listed below. CAN $196,000—$207,000 USD

The role involves developing and maintaining high-fidelity detection logic across cloud-native environments while optimizing telemetry and log ingestion pipelines. You will also design SOAR automation workflows and mentor junior analysts on threat hunting and forensic investigation techniques.

Candidates must have at least 6 years of experience in detection engineering, incident response, or offensive security. Proficiency in cloud platforms, detection-as-code workflows, and programming languages like Python or Golang is required.

• Equity grant • Annual refresh grants • Flexible work policy

• Microsoft AzurePreferred
• CI/CDPreferred
• GoPreferred
• Amazon Web ServicesPreferred
• Google CloudPreferred
• PythonPreferred

Identified from the job description. Confirm important requirements above.

• Detection engineering
• Incident response
• Offensive security
• Cloud security
• AWS
• Azure
• GCP
• Detection-as-code
• Python
• Golang
• SOAR
• Threat hunting
• MacOS internals
• CI/CD
• Telemetry collection
• Red Teaming
• Cloud-Native Computing
• Pipelines
• GIAC Network Forensic Analyst
• Workflow Management
• Threat Detection
• Go (Programming Language)
• Cyber Threat Hunting
• Programming Languages
• Peer Review
• Amazon Web Services
• Mac OS
• Automation
• Test Automation
• Microsoft Azure
• Software As A Service (SaaS)
• Version Control
• Computer Forensics
• Digital Forensics
• Incident Response
• GIAC Reverse Engineering Malware
• GIAC Certified Forensics Analyst
• GIAC Certified Forensic Examiner
• GIAC Certified Intrusion Analyst
• GIAC Certifications
• Python (Programming Language)
• Machine Learning
• Offensive Security
• Offensive Security Certified Professional
• Public Cloud
• Telemetry
• Triage
• Investigation

• Security & Safety
• Technology
• Software
• Engineering
• Data & Analytics
• Section Engineer
• Incident Analyst / Responder
• Database and Network Professionals Not Elsewhere Classified
• Information Security Analysts

Minimum experience

6+ years

Posting language

English

Working hours

40 hours per week