UNKNOWN

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Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. You’re comfortable designing APIs, integrating with authentication or identity frameworks, and thoughtfully using AI-assisted development tools to build, test, and ship high-quality code faster without lowering the quality bar.

Sierra

Software Engineer, Security

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In this role you will drive high-leverage security initiatives that raise the bar for the entire company — balancing hands-on technical work with cross-functional leadership and mentorship. Our team moves fast, takes ownership, and is deeply committed to the mission — operating with intensity, staying close to our customers, and pushing each other for excellence.

Harvey

Senior Product Security Engineer

YEAR

Staff Product Security Engineer

Improve security coverage and signal quality by building and tuning the automated tooling that catches issues early (SAST, DAST, SCA, secrets scanning, dependency and supply-chain controls, and CI/CD security gates) and by partnering with engineering to make findings reliable, actionable, and low-friction to fix. Build a security program capable of withstanding sophisticated adversaries, including by tackling the novel application-security challenges of agentic AI (prompt injection, unsafe tool use, data exfiltration, and abuse of autonomous actions) and by using Servals own agents to solve frontier security problems.

Serval Inc

Security Engineer, Application Security

To meet our commitment, we are building a world-class privacy aware infrastructure that spans all data lifecycle stages across various online environments, including API gateways, micro-services, storages, and message queues. We are dealing with an ecosystem that includes tens of thousands of online services and databases in global data centers, managing billions of users data worldwide.

TikTok Inc

Senior Backend Software Engineer - TikTok Privacy & Security, Online Infra

You are the engineer who makes it work in practice: implementing and evidencing controls, keeping the GRC platform accurate, preparing what auditors and customers ask for, and chasing the details that decide whether an audit goes well. We are working toward ISO 27001 certification and SOC 2 Type II attestation across a company that is scaling quickly, operating multi-tenant infrastructure in several countries, and deploying into partner data centers.

Volta

Security Engineer, Compliance Focus

We are seeking a Senior Network Security Engineer to leverage their extensive expertise in network security and Next Generation Firewall (NGFW) technologies to maximize product potential for customers and partners. Most recently, we were recognized Stevie Employer of the Year 2025, SIA Best Staffing Firm to work for 2025, Inc 5000 Best Workspaces in US (2025 & 2024) and Glassdoor's Best Places to Work (2023 & 2022)!

HOUR

Akraya Inc.

Customer Success Engineer : 26-01797

HaleyMarketing

4+ years of experience as a software engineer with significant time spent building security-related tools, platforms, or automations, or in a security engineering role with strong software development responsibilities. This role focuses on engineering security tools and internal AI-driven agents that improve detection and response, vulnerability management, and the overall security posture of our products and infrastructure.

Perplexity AI

Member Of Technical Staff (Software Engineer, Security)

Fortinet empowers its customers with intelligent, seamless protection across the expanding attack surface and the power to take on ever-increasing performance requirements of the borderless network - today and into the future. Only the Fortinet Security Fabric architecture can deliver security without compromise to address the most critical security challenges, whether in networked, application, cloud or mobile environments.

Fortinet Inc

Software Development Engineer (Agent Security)

And together, we will continue to build world-class products—led by people with different perspectives, backgrounds, and a commitment to innovation in a time when the world faces its greatest cybersecurity threats in history. Powered by the Illumio AI Security Graph, our breach containment platform identifies and contains threats across hybrid multi-cloud environments – stopping the spread of attacks before they become disasters.

Illumio

Staff Engineer - Container Security

Sr. Software Engineer- Container Security

Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands - including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank - to transform how they serve customers and grow their businesses. You're comfortable designing APIs, integrating with authentication or identity frameworks, and thoughtfully using AI-assisted development tools to build, test, and ship high-quality code faster without lowering the quality bar.

Sierra AI

Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. In this role, you will be responsible for ensuring the security and integrity of our cloud-native applications and systems throughout the software development lifecycle, with a particular focus on code security, CI/CD pipelines, and emerging AI technologies.

Twitter

Application Security Engineer

Our platform offers three core products: Merge Unified, which enables businesses to add hundreds of integrations to their products with a single API, Merge Agent Handler, which empowers AI agents with secure access to thousands of third-party tools, and Merge Gateway, the control plane for running AI in production. You'll work directly alongside our Head of Security and partner closely with Engineering and Product to find and fix vulnerabilities, shape how we build securely, and ensure our API-first, AI-powered products ship with strong security guarantees.

Merge Dev

Security Engineer

Its product autonomously designs customer interviews, recruits participants, and analyzes responses, helping teams turn complex research questions into useful insight in hours rather than weeks. You will report directly to the co-founder and CTO, define the security architecture, and build a practical security program for a platform that holds sensitive voice, face, and device data at significant scale.

Our client

Founding Security Engineer

You'll play a critical role in embedding security throughout the software development lifecycle by using AI-driven tools, automated controls, and data-informed risk prioritization to ensure our systems, applications, and AI-powered platforms are built securely from the ground up. Zeta Global (NYSE: ZETA) is the AI-Powered Marketing Cloud that leverages advanced artificial intelligence (AI) and trillions of consumer signals to make it easier for marketers to acquire, grow, and retain customers more efficiently.

Zeta Global

Lead Application Security Engineer

ITAR REQUIREMENTS: To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X.

Application Security Engineer (X Money)

You''ll collaborate with various architecture and engineering teams to continuously validate and improve our security controls and detection capabilities, with a strong focus on developing repeatable testing frameworks and metrics-driven security improvements. Deep understanding: of OWASP Top 10 vulnerabilities; common attack techniques; exploit development; post-exploitation methodologies; security assessment frameworks (MITRE ATT&CK, PTES); BAS methodologies; and modern detection stack components (EDR, SIEM, XDR).

Roblox Corp

Senior Offensive Security Engineer

We came to these beliefs the hard way — after years of building infrastructure and responding to incidents with tools that offered plenty of bells and whistles, but no clear answers when it counted most. Sazabi gives teams a single place to ask questions about their production systems in plain language, automatically visualize what's happening, and get to the root cause 10x faster.

Sazabi

PART_TIME

TEMPORARY

CONTRACTOR

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As Staff Site Reliability Engineer, the successful candidate will serve as a technical individual contributor responsible for supporting architecture, securing, and sustaining the production infrastructure supporting regulated digital health and medical software platforms. We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and professional staffing, powered by a high-performing recruitment engine operating across North America and Asia.

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