Security Jobs Posted on X (Twitter)

AppSec, infra security, threat intel, pentest. Comp is often in the post. 14 roles on this page.

14 roles · updated 2026-09-27

Security Tester

Encrata

Pen-test APIs, auth, and access controls. Remote. Posted by the co-founder and CTO.

Sep 27, 2026

Venkat

@venkatofl

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we’re hiring 🚨 looking for a security tester at @EncrataAPI you’ll work on: ↳ test our APIs, authentication, and access controls ↳ find vulnerabilities across lookup workflows and internal tools ↳ investigate data leaks, rate-limit bypasses, and security weaknesses ↳ test Show more

9:53 PM · Sep 26, 2026

Mobile AppSec Engineer

Shopify

Find and fix mobile vulnerabilities before they ship. Canada or US. Posted by Head of Mobile.

Canada or United States · Sep 24, 2026

Mustafa Ali

@mustafa01ali

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I’m hiring a Mobile AppSec engineer at Shopify, based in Canada or the US. Small team, apps used by millions, lots of code shipping every week. You’ll have access to frontier models and build tools to find and fix vulnerabilities before they ship. If that sounds like your kind of Show more

4:24 PM · Sep 23, 2026

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securityengineering

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Senior Consultant, Human Threats

Coalfire

Social engineer with physical assessment experience. Posted by the person who runs the team.

Sep 24, 2026

Snow

@_sn0ww

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Yooooo. I'm hiring. Senior Consultant role on my Human Threats team. Social Engineer w/ lots of physical assessment experience 🔐 careers.coalfire.com/career-descrip…

5:48 PM · Sep 23, 2026

151

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security

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Offensive Security Researcher

NVIDIA

Firmware, microcode, RISC-V, hypervisors, HW CFI, memory tagging. Posted by the Director of Offensive Security.

United States · Sep 23, 2026

Adam 'pi3' Zabrocki

@Adam_pi3

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I'm hiring an exceptional Offensive Security Researcher for my team at NVIDIA (Offensive Security Research - OSR). Firmware, microcode, RISC-V, hypervisors, and shipping mitigations like HW CFI, Memory Tagging, and Pointer Masking from the ground up. jobs.nvidia.com/careers?query=…

5:05 AM · Sep 23, 2026

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securityresearch

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AI Engineer

Aikido Security

Agents that remediate vulnerabilities. Tel Aviv. Posted by the AI engineering lead.

Tel Aviv, Israel · Sep 22, 2026

Yakir Ben-Aliz

@YakirBenAliz

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I’m hiring an AI Engineer to work with me at @AikidoSecurity in Tel Aviv. Build AI agents to remediate vulnerabilities and way way more. Gi optional.

Watch on X

3:25 PM · Sep 9, 2026

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aisecurity

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Security Engineer

Onramp

Own the security program, test defenses, incident response. Remote US. Posted by the founder.

Remote, United States · Sep 19, 2026

Michael Tanguma

@MTanguma

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We’re building the money platform of the future at @OnrampBitcoin. Dollars and stablecoins, bitcoin custody and financial services, and gold. One experience, from individuals to financial institutions. We’re hiring an Engineering Lead and a Security Engineer to help build it. Show more

4:23 PM · Sep 18, 2026

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securityweb3

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Protocol Security Researcher

Aave Labs

Protocol security for Aave: review, adversarial analysis, AI-assisted tooling. London. Posted by a teammate.

London, UK · Sep 18, 2026

Josselin Feist

@Montyly

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We are hiring a security researcher at @aave Join us to review our smart contracts, build our AI-assisted tools, and help secure the ecosystem You will work directly with me, have room to experiment, and develop new approaches as our industry evolves aave.com/careers/protoc…

4:36 PM · Sep 16, 2026

241

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securityresearchweb3

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Member of Technical Staff, Cyberforensics

METR

Embedded incident investigation inside frontier labs. Berkeley. Posted by a teammate.

Berkeley, CA · Sep 16, 2026

Adel Ka

@0x4D31

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to the DFIR folks in my network: apply and help METR do a proper, non-slop-vestigation of the next cyber drama jobs.lever.co/metr/b1a2f73f-…

Charles Foster

@CFGeek

Want to do independent investigations within frontier AI companies to help the world understand and mitigate risks? METR just posted two new jobs: - Member of Technical Staff, Embedded Assessments - Member of Technical Staff, Cyberforensics

1:44 AM · Sep 10, 2026

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securityresearchai

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Information Security Engineer, Agentic AI

D. E. Shaw Research

Security for agentic AI at a computational drug-discovery lab. Posted by the company.

New York, NY · Sep 2, 2026

D. E. Shaw Research

@DEShawResearch

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We are hiring for our computing infrastructure and information security teams. Opportunities include: • Information Security Engineer, Agentic AI • Systems Engineer, Servers/Cloud/Data • Systems Engineering Lead Learn more and apply here: deshawresearch.com/current-opport…

5:16 PM · Sep 1, 2026

300

Senior Developer Relations Engineer, AI Foundation and Security

Google Cloud

Production AI deployments and agentic workflows. Posted by the Google Cloud DevRel team.

United States · Sep 2, 2026

James O'Reilly

@JamesOR

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We’re expanding our Developer Relations team and looking for builders, storytellers, and community champions to help shape the future of developer experience at @googlecloud ! 🚀 If you love being "Customer Zero," getting hands-on with cutting-edge tech, building open-source Show more

7:14 PM · Aug 31, 2026

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engineeringaisecurity

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Software Engineer

Tross

Backend/platform SWE, 1 to 5 years. Reverse engineering, CTF, and cloud are pluses. 25 to 45 L (cash + ESOP). Bangalore in-office.

Bangalore, India · Aug 25, 2026

Padam

@Padamn__

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We’re hiring a Software engineer at Tross that got the dawg in them. CTC : 25 Lakhs to 45 lakhs (Cash + ESOP) Location : Bangalore (in office) Looking for someone preferably who ideally fits the following criteria : 1. Has reverse engineering / web security experience (good to Show more

12:55 PM · Aug 24, 2026

268

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Malware Research Engineer

Aikido Security

Engineer/researcher on new endpoint-protection tech. Autonomy and ownership. Posted by a security researcher on the team.

Aug 21, 2026

Charlie Eriksen

@CharlieEriksen

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I'm hiring an engineer/researcher to work more on building cool new tech for endpoint protection. This is a perfect role for people who value autonomy and ownership over their work. And are excited to work on the bleeding edge of technology. aikidosecurity.recruitee.com/o/malware-rese…

8:54 PM · Aug 19, 2026

196

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securityengineeringresearch

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Founding Security Engineer

The Bitcoin Way

Founding security engineer for self-hosted Bitcoin infrastructure.

Aug 20, 2026

The Bitcoin Way

@Thebitcoinway_

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Looking for a #Bitcoin job? 👀 We're hiring! We're looking for a talented Security Engineer to join our technical team and assist in securing our self-hosted infrastructure Come and help us create sovereign individuals 💪 More details in the link below 👇

1:00 PM · Aug 20, 2026

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securityfoundingweb3

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AI Security & Control Engineer + Research Scientist

Apollo Research

Two open roles focused on securing frontier AI systems.

Remote · Aug 11, 2026

Apollo Research

@ApolloResearch

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Replying to @ApolloResearch

We are hiring! If you’re interested in this work, please apply. We have two roles open for exactly this kind of work: AI security & control engineer: jobs.lever.co/apolloresearch… AI control research scientist: jobs.lever.co/apolloresearch…

6:55 PM · Aug 11, 2026

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