Full-Time

Security Operations Engineer

Detection and Response Team

Notion

Notion

5,001-10,000 employees

AI-powered workspace for notes and projects

No salary listed

Dublin, Ireland

Hybrid

Anchor days require on-site presence: Mondays, Tuesdays, and Thursdays.

Category
IT & Security (1)
Required Skills
Microsoft Azure
Python
reverse engineering
Network Monitoring
AWS
Go
Splunk
Google Cloud Platform
Requirements
  • 5+ years of experience in security detection, response, or related fields
  • Strong ability to write, tune, and optimize detections across various platforms (e.g., EDR, SIEM, network monitoring)
  • Proficiency in scripting and automation (Python, Go, or similar) to enhance detection and response capabilities
  • Experience with detection rule development (Sigma, YARA, Splunk SPL, KQL) and security event correlation
  • Deep expertise in the incident response lifecycle, including investigation, containment, remediation, and recovery
  • Lead security incidents and command response efforts, ensuring rapid containment and mitigation—even in unfamiliar environments and across team boundaries
  • Lead post-incident learning, conducting blameless postmortems and driving follow-up actions that address systemic issues and prevent recurrence
  • Experience securing cloud-native environments (AWS, GCP, or Azure), including detection and response strategies for cloud workloads
  • Practical knowledge of detecting malicious activity in application and infrastructure architectures in a SaaS environment
  • Ability to assess security gaps and propose detection & response improvements across cloud and endpoint platforms
  • Pragmatic and business-oriented: You focus on high-impact security efforts, balancing security investments with real-world risk
  • Not ideological about technology: You see technologies and programming languages as tools with tradeoffs—you’re opinionated but adaptable, always willing to learn new technologies
  • Empathetic communication: You clearly articulate complex security issues, whether in technical discussions or executive briefings. You engage thoughtfully in disagreements and find common ground when needed
  • Team player: You thrive in a team environment, collaborating cross-functionally to accomplish shared security goals. You care about mentorship, learning, and continuous improvement
  • You don’t need to be an AI expert, but you’re curious and willing to adopt AI tools to work smarter and deliver better results
Responsibilities
  • Lead detection engineering efforts, designing scalable, high-fidelity security detections across cloud, endpoint, and application environments
  • Develop automation & orchestration solutions to improve response and containment times and enhance security workflows
  • Own and drive incident response and command, leading major security incidents, containment, and remediation efforts
  • Conduct proactive threat hunting, leveraging threat intelligence and hypothesis-driven methodologies to detect hidden adversary activity
  • Reverse-engineer attacks, analyzing adversary behavior and developing robust detection strategies
  • Continuously improve security defenses, applying lessons learned from incidents, hunting exercises, and emerging threat trends
Desired Qualifications
  • Experience leading large-scale security initiatives or driving security automation programs
  • Background in red teaming, adversary emulation, or offensive security
  • Familiarity with application-level detections, such as database security monitoring, detecting malicious queries, or abnormal application behavior
  • Familiarity with security compliance standards (SOC 2, ISO 27001), though not a primary focus
  • Involvement in the security community, such as conference presentations or open-source contributions

Notion provides a centralized workspace that combines notes, documents, project management, and customizable tracking into one platform. It allows teams to write, plan, and share work using a drag-and-drop interface to build pages, add labels and tags, and organize information. An AI-powered Q&A feature helps users get quick answers and centralizes knowledge. The product is offered on a freemium model, allowing anyone to start for free and upgrade as teams grow or need more features. Notion differentiates itself by merging multiple tools—notes, docs, tasks, databases, and collaboration—into one workspace, supported by a global multilingual community and ongoing content, courses, and events. The goal is to help teams stay organized, reduce costs by consolidating tools, and boost productivity across organizations of all sizes.

Company Size

5,001-10,000

Company Stage

Private

Total Funding

$605M

Headquarters

San Francisco, California

Founded

2016

Simplify Jobs

Simplify's Take

What believers are saying

  • GIC's $270M investment in 2026 values Notion at $11B with AI driving over 50% of $600M ARR.
  • Over one million custom agents built since February 2026 validate Developer Platform adoption.
  • Enterprise adopters like OpenAI, Ramp, and Vercel accelerate Notion's AI workspace growth.

What critics are saying

  • OpenAI's productivity suite with 1M token GPT-4.1 erodes Notion's freemium model within 12 months.
  • Anthropic's Claude features compete directly, reducing Notion's AI toolkit necessity in 6 months.
  • Third-party LLM API hikes from OpenAI or Anthropic disrupt 50% of Notion's $600M ARR in 18 months.

What makes Notion unique

  • Notion's Developer Platform Workers enable secure custom code execution syncing Salesforce and Postgres databases.
  • Notion integrates GPT-4.1 and Claude 3.7 directly into workspaces for seamless AI model switching.
  • Freemium model since 2016 offers unlimited solo blocks, limiting teams to 1,000 blocks to drive upgrades.

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People at Notion who can refer or advise you

Benefits

Medical, dental & vision insurance

PTO

Mental health & wellbeing package

Parental leave

Fertility coverage

Retirement matching

Commuter benefits

Monthly stipend

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

3%
Business Wire
Mar 24th, 2026
Leapsome appoints two VPs and wins Notion as US expansion accelerates

Leapsome, a platform combining HRIS, performance and growth management, has appointed Jessica Zwaan as VP people strategy and operations and Rebecca Corliss as VP marketing as it expands its North American presence. The company has also won Notion as a customer. Founded in 2016, Leapsome has evolved from a talent management platform into an integrated system connecting core HR, performance, engagement and AI capabilities. The company now has more customers in the US than any other market. Zwaan joins from Talentful, where she served as chief operating officer, whilst Corliss brings experience from HubSpot, Owl Labs and VergeSense. Leapsome recently added a native ADP Workforce Now integration and expanded its Justworks partnership. The company is exhibiting at Transform 2026 this week in Las Vegas.

Microsoft
Feb 10th, 2026
GIC invests $270M in Notion through employee share sale at $11B valuation

Singapore's sovereign wealth fund GIC has invested $270 million in Notion through a private tender offer, valuing the AI workspace company at $11 billion. Sequoia Capital and Index Ventures joined GIC in purchasing shares from current and former Notion employees. The transaction provides employee liquidity whilst bringing new institutional capital. Notion removed the one-year vesting cliff on employee options to allow nearly all staff to participate. The investment follows Notion's expansion into Singapore with a regional office opened in mid-2025. Notion's AI-powered features now drive over 50% of annual recurring revenue, which recently surpassed $600 million. The platform serves over 100 million users worldwide across 21 languages. The $11 billion valuation represents a slight increase from Notion's 2022 tender offer at $10 billion.

Notion
Jan 26th, 2026
GIC, Sequoia, Index purchase Notion shares in private tender offer

Today, we’re pleased to share that we held a private tender offering over the last quarter. Returning investors Sequoia Capital and Index Ventures are doubling down on their commitment to Notion, while we’re thrilled to partner with new investor GIC, a global institutional investor.

Startups.com.br
Jan 19th, 2026
Notion launches Brazil operations eyeing $12B IPO with $600M revenue

Notion, the productivity tool popular among founders and developers, has officially launched operations in Brazil, targeting startups and large enterprises. The company hired Fernando Chang, a veteran from SAP, Oracle and Salesforce, to lead enterprise business, and Arthur Rozenblit, formerly of WeWork and Zendesk, to expand among startups and SMEs. The Brazilian expansion focuses on three pillars: partnerships, community engagement and digital presence. Notion has already partnered with Distrito to offer six months of Notion Business to startups. The move comes as Notion prepares for an IPO later this year, potentially raising $200 million at a $12 billion valuation. Founded in 2013, the company now has over 100 million users globally, with revenue reaching $600 million in 2025, up 50% year-on-year.

Pulse 2.0
May 31st, 2025
Flip Secures $28M for AI Growth

Flip secured a $28 million Series A extension led by existing investors, including LEA Partners and Notion Capital. The funding will enhance AI capabilities and support global expansion. Flip's AI solution automates shift planning and onboarding, boosting productivity and engagement. The company, founded by Benedikt Brand, has raised over $60 million since 2018 and serves 500+ companies. Simon Eck joins as SVP Global Sales to aid international growth.