Remote UK-based Incident Response Consultant working a weekend schedule (Friday–Monday). Responsibilities include leading incident response engagements, threat hunting, host and network forensics across Windows/macOS/Linux, malware analysis and reverse engineering, cloud incident response (AWS/Azure/GCP), producing reports for stakeholders and working with legal/externals, and communicating findings. Role expects team leadership, project management, use of network analysis tools (Bro/Zeek, Suricata), and leveraging AI technologies in investigations.

Hands-on Senior Engineer on the Security Architecture team who owns end-to-end initiatives to design, implement, and operate security controls (IAM, secrets, endpoint hardening, network segmentation, detection/response). Performs security reviews, threat modeling, and risk assessments; investigates and triages complex security issues; partners with product and platform teams. Requires 5+ years in software/security engineering, experience with cloud platforms (AWS/GCP), CI/CD/GitOps/IaC practices, programming in Go or Python, and familiarity with container orchestration (Kubernetes), Terraform/Packer, and HashiCorp Vault.

Role requires owning core stablecoin services, securing and integrating wallet and payment rails, and collaborating across teams and external providers to deliver end-to-end stablecoin payment and treasury flows. Minimum 5+ years experience, with production cloud and IaC experience and strong familiarity with stablecoin/blockchain technologies, wallet/key management, and security-sensitive financial systems.

Ramp is hiring a founding Privacy engineer to design and build privacy-focused application primitives, implement data retention and anonymization strategies, and update systems and processes to meet shifting legal standards. Requires a minimum of 4 years of software engineering experience and at least 2 years focused on platform, privacy, and/or security. Locations: New York (HQ), San Francisco, or Remote (US). Benefits include relocation expense coverage to NYC or SF and global benefits for full-time employees.

The Product Security team at Ramp seeks an experienced engineer (minimum 5 years software experience, 2+ years focused on platform/infrastructure/security) to build security-focused application primitives, design and deploy platform-level mitigations, lead vulnerability remediation (including pen tests and bug bounty findings), and partner with engineering teams to improve security posture using tooling such as linters, static analysis, and posture scanners. Preferred experience includes Python (Flask), Elixir, and AWS (ECS).

Associate Manager on the Internal Audit team responsible for end-to-end IT and security audits (cloud: AWS, GCP; app security; IAM; vendor risk; blockchain/wallets). Duties include audit planning, fieldwork, reporting to senior leadership and the Audit Committee, mentoring junior auditors, tracking remediation, and partnering with Engineering and Security. Requires 6+ years relevant experience and 1+ year managing audit processes/staff. Annual base salary range: $130,900–$154,000 USD.

SearchApi seeks a remote Anti-Bot Engineer to research and implement anti-bot evasion, reverse engineer detection systems (Cloudflare, Akamai, DataDome, PerimeterX, etc.), optimize Playwright/Puppeteer/CDP configurations, debug TLS/protocol fingerprinting (JA3/JA4, HTTP/2, HTTP/3/QUIC), analyze network traffic, and run headless browsers reliably at scale. Fluent English and deep hands-on experience with browser internals, fingerprinting, network analysis tools, and relevant tooling (Playwright, Puppeteer, Selenium, Wireshark, Burp Suite, mitmproxy) are required.

CrowdStrike is hiring a Senior Software Development Engineer II for the CTIO Linux sensor team. The role focuses on designing and implementing core sensor features across OS subsystems (file system, memory, process, networking) using C/C++ with strong Linux internals and debugging skills. Hybrid positions are based in Redmond, WA; Sunnyvale, CA; Austin, TX; New York, NY; or Toronto. The posting includes a US base salary range of $160,000–$250,000/year and a Canada range of $175,000–$250,000 CAD/year.

The Staff Security Engineer (Blue Team) will act as technical lead for Olo’s Security Blue Team, guiding information protection, incident detection and response, threat hunting, vulnerability management, and security service programs. The role requires 5+ years of security engineering/operations/architecture experience, familiarity with PCI-DSS compliance, cloud security (AWS), IaC, containers/Kubernetes, operating system hardening, SIEM/EDR and a range of security technologies. This position supports a distributed/remote U.S. workforce and participates in a 24/7 on-call rotation.

Remote Senior Technical Support Engineer role supporting enterprise customers of a cybersecurity SaaS. Responsibilities include troubleshooting complex frontend/backend issues, working with engineering/product/security teams, debugging and building small automation tools, and mentoring other support engineers. Requires 5+ years in software engineering or technical support, proficiency in Python, JavaScript, HTML, CSS, and experience with distributed systems and web security.

Intuition Machines seeks a Senior Cyber Security Analyst to monitor and investigate automated and human threats across the hCaptcha platform. Responsibilities include advanced investigations, threat hunting, incident response, auditing security measures, contributing to AI/ML detection improvements, and collaborating with product and customer teams. Required skills include web/API security, WAFs, SQL, Kubernetes, scripting (Python/JavaScript), and deep understanding of web application threat landscape. Role is fully remote with flexible hours and requires pre-employment screening and identity verification in the candidate's country of residence.

Lead investigations into automated and human threats on a large-scale SaaS security platform: monitor and analyze events, conduct threat hunting and incident response, and improve AI/ML detection. Requires hands-on SQL, familiarity with web/API security and WAFs, experience with Kubernetes and scripting (Python, JavaScript), and collaboration across distributed teams. Position is fully remote with flexible hours.

Intuition Machines is hiring a remote Security Software Engineer (candidates in Brazil and Argentina explicitly referenced). The role centers on systems programming and compiler development to advance detection/prevention of malicious activity, including work on obfuscation, virtual machines, cryptography, browser automation, HTTP/Web APIs and WASM. Responsibilities include development, monitoring, fault handling, metrics, automation, and deploying continuous updates. Candidates should have hands-on experience or demonstrated expertise; pre-employment screening and an in-person interview/identity verification in the candidate's country of residence are required.

The role leads the ML Security team responsible for bot, agent, and human fraud/abuse detection, owning execution of roadmaps, architectural and technical decisions, code reviews, mentoring, and delivery from data exploration through production deployment and monitoring. Required: strong ML/data science or engineering background with production ML experience, engineering management or tech lead experience, expertise in high-availability and distributed systems, Python, ML pipelines, MLOps, and strong cross-functional communication. Position is fully remote with flexible hours; all candidates will undergo pre-employment screening and identity verification in their country of residence.

Intuition Machines is hiring a remote Cyber Security Analyst to monitor and investigate automated and human threats within its hCaptcha SaaS platform. Responsibilities include threat hunting, incident response, web/API security analysis, and collaborating with global teams to improve AI/ML detection and security processes. Required skills include SQL, experience with web and API security, familiarity with Kubernetes, and scripting in languages such as Python and JavaScript.

90% remote role based in Crystal City, VA area. Candidate must hold an active Top Secret clearance and Security+ plus at least one of CISM/CRISC/CISSP. Responsibilities include operating eMASS/SNAP/PPSM/STIG Viewer, developing SSPs, SARs, and POA&Ms, evaluating security controls for IaaS/PaaS offerings, conducting risk assessments per NIST/DISA/FISMA/FIPS, and using cloud and vulnerability scanning/monitoring tools across AWS, Azure, and GCP.

1Password seeks a Senior Security Engineer for Incident Response to lead complex cloud-native and SaaS security investigations, perform threat hunting, and build automation and orchestration to improve detection and response. The role blends hands-on investigations, engineering to reduce response friction, structured incident coordination, and post-incident reviews. Required: 5+ years in security incident response (with 3+ years focused on security engineering/automation), proficiency in scripting (Python, Go, Bash), experience with APIs and orchestration platforms, and strong written/verbal communication. This is a remote role for candidates in the United States or Canada; USA-based salary range: $153,000–$214,000 USD/year (Canada-based range also provided in the posting).

Work on the Security Functional Team to secure browser and sync features, agentic browsing and DuckAI integrations, and SERP mitigations. Responsibilities include security audits, building harnesses and tooling to deploy fixes, managing scanning infrastructure, running red-team operations, supporting triage, and partnering with product engineers. Requires 7+ years in web/application security and strong JavaScript and WebView/browser-security experience. Compensation listed at $178,500 USD annually (plus stock options).

Role involves developing file format parsers and feature extraction engines, implementing and testing robust libraries/SDKs and APIs, collaborating with data scientists on ML features, performing reverse engineering and malware analysis, and working across Windows/macOS/Linux. Requires ~12+ years experience with Rust/C/C++/Python and familiarity with CI/CD and cloud platforms.

Work on the Falcon Host sensor (kernel-mode driver) and related cloud telemetry features. Responsibilities include designing, implementing, and owning cross-platform sensor features (Windows primary, also Mac/Linux), debugging low-level issues (memory corruption, process contention, performance), collaborating with distributed teams, and mentoring others. Requires strong C++ and Windows kernel/OS internals expertise; preferred experience with WFP, TCP/IP, USB, file systems, Agile and Git.