Lead technical direction and implementation of Grafana’s authentication systems, owning large-scale, low-latency, multi-tenant services implemented primarily in Go. The role includes cross-team coordination, mentoring senior engineers, driving identity protocol standards, and representing Grafana at external events. Position is remote-first and explicitly available to candidates in the UK, Germany, Spain, Ireland, and Sweden.

SearchApi seeks an experienced engineer to own the browser stack: patch browser engines (Chromium/Firefox) in C++, maintain per-OS fingerprint profiles, eliminate automation-detection signals (navigator, WebGL, canvas, audio, fonts, Client Hints, CDP leaks), and build tooling and tests to prevent regressions. The role requires deep reverse-engineering skills, familiarity with large browser build systems, and proven contributions to browser-engine patches or stealth tooling.

DuckDuckGo is hiring a Senior Privacy Engineer to work on the Privacy Functional Team. The role involves designing privacy-preserving systems (e.g., for search indexes and AI features), building on the Tracker Radar crawler, implementing and maintaining features like Web Tracking and Email Protections, and participating in privacy review and audit processes. Required technical work includes writing pragmatic, performant, testable code primarily in Go, Node.js, Python, and sometimes Perl. The position is remote (specified for many countries), full-time (~40 hours/week), includes expected travel for company meetups (~2 times/year), and lists compensation of $178,500 USD annually plus stock options.

Independent Contractor Senior Security Engineer responsible for building and owning security tooling and automation across the SDLC, evolving vulnerability management (container images, dependencies, code scanning, runtime detection), integrating security into CI/CD and developer workflows, leveraging AI/LLMs, and collaborating with engineering teams. Requires at least 5 years of software/platform engineering experience and hands-on cloud experience (ideally GCP/GKE).

Lead design and development of security agent capabilities powering runtime threat detection and workload protection across Datadog Security products. Work includes building eBPF-based monitoring, kernel-level instrumentation, performance-sensitive systems, and large-scale data collection, and partnering with cross-functional teams to deliver platform capabilities.

The Head of Data Ops & Systems will lead DA's internal technology and data function (acting as Data Protection Officer), owning systems strategy, integration, data architecture, quality and governance, vendor relationships, cybersecurity oversight, and leading a technical team to ensure reliable, well-integrated systems across the organisation. Role is based in Ireland and requires the right to work in Ireland (no visa sponsorship).

Role on the Advanced Research Team performing vulnerability research and exploit development, reverse engineering, identifying exploits and malicious infrastructure, developing automated collection/analysis tools, collaborating across teams, and publishing research. Requires 4+ years in information security, strong OS internals knowledge (Windows/Linux), software development (Python preferred), and experience leveraging GenAI/LLMs.

Remote (Ireland or UK) Staff Enterprise Security Engineer role focused on securing the enterprise AI ecosystem by designing secure reference architectures, building decision infrastructure and technical guardrails, and guiding cross-functional AI identity and posture management. Requires 7+ years in security or infrastructure security, 2+ years leading technical teams or risk analysis, expertise in cloud security (AWS, GCP), Kubernetes/container security, and proficiency in Python, Go, or Java. Occasional travel may be required.

Senior Intelligence Analyst II responsible for threat hunting, tailored threat intelligence, dark web monitoring, and customer-facing briefings. Remote role for candidates able to undergo Garda Vetting and travel to the client's Dublin office periodically; requires 5+ years' experience across incident response, threat hunting, cyber threat intelligence, or dark web monitoring.

Kraken is hiring a Staff (Senior) Security Architect within Kraken Security Labs to design, review, and verify security architecture across a heterogeneous environment. Responsibilities include conducting security assessments and audits, advising blockchain teams, and working hands-on on topics spanning infrastructure security, cryptography, web3, Rust projects, and AI security. Familiarity with OWASP/NIST and strong collaboration and communication skills are expected.

CrowdStrike seeks an Automation Engineer II for the Falcon Complete MDR team to develop and maintain SOAR playbooks, PowerShell/Python scripts, and AI/LLM-integrated automation pipelines. The role requires ~2+ years of experience in automation, scripting, or cybersecurity and involves API integrations, SIEM query use, data parsing (JSON/regex), version control (Git), and workflow validation.

CrowdStrike seeks a Senior Intelligence Analyst (remote) for the Counter Adversary Operations Elite team to deliver threat intelligence, digital risk monitoring and dark web research for assigned customers. The role requires developing actionable intelligence, delivering briefings, triaging Falcon Counter Adversary Recon findings, collaborating across teams, and responding to customer requests. Minimum 2+ years specialized experience in cyber threat intelligence, digital risk monitoring and third-party risk management. Location options include Germany, Ireland, Romania, Israel and the United Kingdom (remote).

Twilio is hiring a Staff Enterprise Security Engineer (AI Security) to lead technical strategy and engineering execution for securing the enterprise AI ecosystem. Responsibilities include designing secure reference architectures, establishing AI vetting frameworks, developing agentic AI identity/posture management, coding (Python/Go/Java), and using IaC to maintain enterprise security posture. The role is remote and based in Ireland or the UK and requires 7+ years in security engineering and cloud/container security expertise.

Join MongoDB's Infrastructure Security team (within SRE) to design and implement scalable security primitives and services protecting compute, networking, and identity across AWS, Azure, and GCP. Work includes Linux security mechanisms, Kubernetes and eBPF-based runtime policies, CSPM and vulnerability management tooling, CI/CD and Terraform integration, monitoring/logging pipelines, and leading end-to-end projects. Role expects 5+ years experience and proficiency in one or more languages (Java, Go, Rust, Python, C/C++).

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.

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.