Top Cybersecurity Jobs in Lille

Manage and grow a dispersed sales engineering team supporting enterprise customers across Germany, France, and broader Mainland Europe. Partner with account executives and regional sales leaders on account planning, sales strategy, and customer calls. Oversee team performance, pre-sales escalations, and cross-functional collaboration with product, marketing, support, and customer success. Act as a trusted technical advisor and improve sales engineering practices across the organization.

Secure Zapier’s production infrastructure by identifying and mitigating risks, hardening cloud environments, improving Terraform and CI/CD security, managing vulnerability and misconfiguration tools, enforcing least-privilege access, strengthening data governance, hardening Kubernetes images, and supporting incident response. The role collaborates with Platform, Engineering, and Security teams in a remote-first environment.

Build and scale low-latency AI serving infrastructure for SLMs, prompt-injection engines, and classification services. Architect GPU-accelerated inference pipelines, backend microservices, Kubernetes clusters, rate limiting, tenant guardrails, monitoring, and autoscaling systems. Develop continuous evaluation, retraining, model CI/CD, regression gates, and MLOps/LLMOps pipelines while improving service reliability, latency, cost efficiency, and detection quality.

Build and harden Chromium-based browser components in C++ for AI and browser security. Develop prompt-injection and Shadow AI detection, integrate AI agents, MCP servers, and CDP, and support networking and HTTP security capabilities. Build tooling and detection services with Python or Rust, deploy cloud infrastructure on AWS or GCP using Kubernetes and Terraform, and optimize high-scale systems across browser and backend environments.

Design, develop, and maintain secure backend services for cloud key management, secrets management, and audit systems. The role involves Go development, cryptographic operations, HSM and PKCS#11 integration, REST APIs, infrastructure automation, observability, PostgreSQL, and security compliance. The engineer will collaborate with infrastructure teams to build reliable, scalable, and secure cloud services.

Own and operate the AI security runtime control plane across Azure, AWS, and GCP. Build inline AI enforcement, tune prompt-injection, data protection, tool-call, and agent access policies, and integrate security platforms with SIEM/SOC workflows. Lead L3 investigations, automated containment, cloud and Kubernetes security, DevSecOps controls, vendor evaluations, and closed-loop red-team remediation. The role requires automation, infrastructure-as-code security, multi-cloud identity management, incident response, and collaboration with technical leadership.

Provides L2 monitoring, triage, investigation, and escalation for AI and cloud security detections. Analyzes telemetry using KQL or SQL, maintains dashboards, and produces operational, compliance, and risk reporting. Investigates AI threats including prompt injection, jailbreaks, data leakage, agent hijacking, and unauthorized tool activity. Monitors Azure, AWS, and GCP posture, supports vulnerability and compliance remediation, documents cases, and partners with SOC, cloud, incident response, and engineering teams.

Pre-Sales Engineer responsible for supporting sales across France by understanding cloud security products, tailoring technical solutions, delivering demonstrations, managing proof-of-concept engagements, and providing technical guidance throughout the sales cycle. The role requires cloud security expertise, strong communication skills, experience with AWS, Azure, or Google Cloud, and hands-on knowledge of Terraform, Kubernetes, and containers. Native-level French and France-based availability are required.

Own Coinflow’s defensive and offensive security posture by operating the SIEM, conducting internal penetration tests, managing vulnerabilities and dependencies, improving the secure development lifecycle, and supporting PCI DSS, SOC 2, ISO 27001, and DORA compliance. The role also includes security monitoring, incident triage, threat modeling, security tooling automation, and collaboration with engineering teams across cloud and application environments.

Build production infrastructure features in Go while embedding security into the product. Own vulnerability triage and remediation through patched releases, threat-model new features, conduct security-sensitive code and design reviews, and improve secure engineering practices. Requires deep Kubernetes knowledge, including API server, admission control, RBAC, controllers, kubelet, and attack surfaces such as container breakout and privilege escalation.

Manage and grow cybersecurity channel partnerships across EMEA. Responsibilities include developing joint business plans, driving indirect revenue, managing pipelines and deal registrations, enabling resellers and distributors, executing channel programs, coordinating co-marketing, recruiting partners, analyzing performance, and collaborating with sales, marketing, product, engineering, and customer success teams.

Own Alan’s security governance and risk program, including ISO 27001 and HDS certifications, regulatory compliance, risk treatment, control frameworks, incident governance, business continuity, and disaster recovery. Partner with Legal, Risk, Internal Audit, the DPO, and engineering teams to identify and mitigate security gaps. Present risks to senior leaders, automate compliance evidence collection, mentor a junior GRC engineer, and help scale governance across countries and regulators.

Supports Alan’s security governance, risk, and compliance program across ISO 27001, HDS, DORA, and GDPR. Responsibilities include managing audit evidence and corrective actions, translating regulations into team tasks, maintaining risk and controls frameworks, supporting incident and business continuity governance, and automating compliance processes with scripts, tools, or AI. The role collaborates with Legal, the DPO, Internal Audit, Risk, engineering, and operations teams.

Own the full enterprise sales cycle across Iberia, from prospecting and new-logo acquisition through negotiation and close. Manage territory activities, complex multi-stakeholder deals, demos, proof-of-value engagements, pipeline forecasting in Salesforce, and strategic customer relationships. Collaborate with Marketing, Sales Engineering, Product, and Leadership while consistently exceeding quotas and mentoring junior team members.

Design, implement, test, and ship Firefox security and hardening features for enterprise users. Improve browser security architecture across operating systems, including privilege isolation, trust boundaries, cryptographic protocols, WebPKI, and security-sensitive web APIs. Investigate security issues, deliver maintainable fixes, and resolve stability, correctness, performance, memory, and multithreading challenges in a complex cross-platform codebase.

Own the full enterprise sales cycle across the Nordics, from prospecting through negotiation and close. Drive new-logo acquisition, manage complex multi-stakeholder deals, deliver tailored demos and proof-of-value engagements, maintain pipeline and forecasting in Salesforce, and build trusted relationships with key stakeholders. Collaborate with marketing, sales engineering, product, and leadership while consistently exceeding quotas and supporting junior team members.

Own product and infrastructure security across fintech products and cloud environments. Lead threat modeling, architecture reviews, secure code reviews, vulnerability management, bug bounty operations, CI/CD security scanning, IAM and secrets management, and security standards. Partner directly with engineering leadership to identify and remediate critical vulnerabilities across backend services, APIs, frontends, Solana programs, and infrastructure.

Lead and scale OX Security’s EMEA channel ecosystem by developing partner strategy, recruiting and enabling partners, driving channel-sourced pipeline and revenue, and coordinating joint go-to-market execution. The role manages relationships with VARs, MSSPs, distributors, and system integrators while collaborating with Sales, Marketing, and Product. Responsibilities include partner performance optimization, joint planning, program development, ecosystem analysis, and representing the company within the cybersecurity channel community.

Own full-cycle technical recruiting across Engineering, Product, and Design. Build diverse talent pipelines, advise hiring managers and senior leaders, use AI-assisted recruiting tools, improve recruiting processes, manage talent communities, and report on hiring metrics. The role emphasizes stakeholder influence, candidate advocacy, sourcing hard-to-find talent, and delivering strong candidate and hiring-manager experiences.

Own product and protocol security across Jito’s Solana-based products. Responsibilities include threat modeling, secure design and code reviews, deployment hardening, internal audits, onchain monitoring, bug bounty operations, remediation tracking, AI-assisted security testing, and key and asset risk management. The role requires production software engineering experience, strong application security expertise, security automation skills, and familiarity with Web3, crypto, or DeFi.

Investigate fraud, money laundering, account abuse, cheating, and security threats. Manage transaction queues, review documentation, conduct deep-dive investigations, identify coordinated abuse patterns, collaborate cross-functionally, and report fraud trends. Recommend process and tool enhancements while maintaining strong customer support, regulatory compliance, and platform integrity.

Own identity and endpoint security across the company, including SSO, MFA, access provisioning, access reviews, MDM, EDR, device security baselines, and IT workflows. Respond to identity and endpoint incidents, assess vendor and SaaS integration risks, support secure AI tool adoption, automate security processes, and help develop scalable security policies and controls.

Monitor and investigate security alerts across SIEM, EDR, cloud, network, and endpoint environments. Analyze logs, conduct alert triage, support incident response and remediation, identify root causes, tune detections, reduce false positives, prepare security reports, and improve SOC procedures. The role operates within a global 24/7 Security Operations Centre and requires collaboration with incident response and cybersecurity teams.

Administer and optimize SIEM platforms, develop and tune threat-detection capabilities, manage detection use cases, onboard security data sources, and improve monitoring effectiveness. The role collaborates with threat intelligence and incident response teams, supports cloud security architecture, builds dashboards and metrics, reduces false positives, and maintains SOC procedures and documentation across multiple customer environments.

Owns an end-to-end product area within Menlo Security’s agent runtime security platform. Responsibilities include researching agent security, identity, protocols, and competitors; writing PRDs and acceptance criteria; managing backlogs; partnering with engineering through releases; prototyping with AI tools, MCP clients, and agent runtimes; tracking adoption and success metrics; enabling support and solutions engineering; and supporting customers, sales, marketing, and competitive positioning.