Senior Security Engineer, AppSec

ClickUp
United StatesPosted 21 August 2025

Job Description

<div class="content-intro"><div class="ql-block" data-block-id="block-ac776bb3-c45a-49bd-9ccd-6eee2eb78c97">ClickUp is revolutionizing the way the world works. As the only all-in-one productivity platform built from day one for true convergence, ClickUp unifies tasks, docs, chat, calendar, enterprise search, and more—supercharged by context-driven AI. While others scramble to bundle fragmented tools or bolt on AI, we anticipated this future and made it our foundation from the start. Headquartered in San Diego with a rapidly expanding global footprint, we empower over three million teams to break free from silos and reclaim their time—saving at least one day every week. Join ClickUp, one of the fastest-growing SaaS companies on the planet, and help millions of users transform the way they work. We’re not just building software. We’re shaping the future of work. Come join us in building the future—together. 🦄</div> <div class="ql-block" data-block-id="block-ac776bb3-c45a-49bd-9ccd-6eee2eb78c97"> </div></div><div class="ql-block" data-block-id="block-bc03ff40-0036-4a40-a3d6-73733b3d1b38">We're looking for a Senior Software Engineer, AppSec for an engineering-focused security team. We are not the prototypical security team: we partner with and embed inside of existing engineering teams at ClickUp.</div> <div class="ql-block" data-block-id="block-a0cf2265-9d93-4243-a886-98a00a562e9e"> </div> <div class="ql-block" data-block-id="block-f44216bb-8b13-4e4f-b3c7-c38b5cc133f3">The security team at ClickUp works to build and share technology including defensive security features and functionality, secure infrastructure and operational tools, security response tooling and processes, and security guidelines and guardrails. Our mission: to help the organization move swiftly <em>and securely by giving them secure paved paths. When something slips through anyway, we do our best to prioritize only the vulnerabilities that are actually exploitable, and we recommended fixes that empathize with the realities of development here.</em></div> <div class="ql-block" data-block-id="block-696fa675-7cd7-4a93-bbd7-34b0930e30b9"> </div> <div class="ql-block" data-block-id="block-8ae0969f-661f-4f84-8dea-4063bef2b0d3">You will support this mission by thinking like a developer, recommending solutions they can readily adopt, and implementing our own for areas with heightened risk. Your focus on our product engineers will allow them to build and ship secure products based on Angular, Node.js, and PostgresSQL, all hosted in AWS.</div> <div class="ql-block" data-block-id="block-d53a30cc-cb9c-43a7-afd9-b968d2f97ab3"> </div> <div class="ql-block" data-block-id="block-960b6b9b-d259-432c-a1a4-13920d65dc2b">You'll be a strategic partner working directly with various engineering teams helping to design, develop and guide teams to secure solutions. We're scaling quickly, and are looking for Security Engineers who aren't afraid of this challenge!</div> <div class="ql-block" data-block-id="block-3583f74e-b1fe-466f-bc7e-68074c54b620"> </div> <div class="ql-block" data-block-id="block-82ab03df-2fd6-4d36-8b25-eb0c181c2f34"><strong>The Role:</strong></div> <div class="ql-block" data-block-id="block-bc14d628-7784-493c-a6e3-77cda787be9a">You'll perform some mix of the following depending on your skillset:</div> <ul> <li>Perform threat models, implementation reviews, and security testing; review requirements and designs. (This will be your bread and butter that informs the rest of ... (truncated, view full listing at source)