Top Cybersecurity Jobs in Lyon

Build, ship, and operationally own security integrations and detections (WAF, RASP, API security, IAST, SCA) across Datadog tracing libraries. Design production-grade, polyglot instrumentation (primarily .NET/Java), measure performance and cost, mentor teammates, shape roadmap, and collaborate with product and platform teams.

Serve as a senior network security domain authority to define network engineer personas and workflows, advise product and AI teams, validate agent behaviors across firewall, cloud/SASE, policy management, compliance, vulnerability management, and troubleshooting, and help build realistic enterprise test scenarios.

Lead design and development of low-level Linux instrumentation and eBPF-based runtime security features for detection, monitoring, and workload protection. Drive architecture, implement performance-sensitive systems, establish testing methodologies, deliver end-to-end features, and provide technical leadership and cross-team collaboration across Datadog's security products.

Design, build, operate, and support resilient distributed platform services. Write maintainable code, troubleshoot production issues, improve reliability and observability, and assist internal teams. Participate in on-call rotations and collaborate on platform evolution.

Lead end-to-end delivery of hyperscale data centre projects onsite, managing design, construction, commissioning and close-out. Serve as key client interface, coordinate vendors and stakeholders, ensure compliance with safety/quality/environmental standards, control costs/schedule, and produce regular progress and risk reports.

The Lead Golang Software Engineer develops server solutions, leads technical designs and code reviews, mentors colleagues, and ensures the quality of engineering practices in the Commercial Systems unit.

The Enterprise Customer Success Manager enhances customer experience by onboarding clients, managing relationships, and identifying growth opportunities, especially in IT solutions and cloud technology.

Drive net-new revenue and expansion within enterprise accounts by positioning Elastic's search, observability, and security platform. Manage complex sales cycles, qualify opportunities (MEDDPICC), build strategic plans, collaborate with Solutions Architects and Customer Success, negotiate contracts, and deepen customer adoption of Elastic's cloud and AI-powered search solutions.

Dragonfly is seeking Software Engineers for various portfolio companies, focusing on crypto technologies. Engineers of all experience levels are needed across multiple stacks.

Lead and grow a senior Application Security engineering team; define AppSec strategy and roadmap; engage deeply on threat modelling, security architecture, agentic/AI-native tooling, SAST/SCA, vulnerability management and automation; embed security into the SDLC, coordinate with leadership and partner teams, and represent AppSec externally for compliance and customer interactions.

Lead end-to-end application and product security for a Kubernetes-based multi-tenant platform. Perform deep security reviews of Go services, Kubernetes controllers, and frontends; lead threat modeling; integrate automated security checks into CI; manage vulnerability lifecycle; develop security-related features; and train developers on secure coding and attack vectors.

Hands-on security engineer responsible for vulnerability triage, bug-bounty management, code-level investigations (Rust/Go/Python), cloud and container security (AWS, Kubernetes), securing CI/CD and GitHub orgs, incident response, security automation, metrics/reporting, and building guardrails across the development lifecycle.

Lead security engineering across web apps, APIs, cloud (AWS/OCI), Kubernetes, and on-prem systems. Build CI/CD security, secure genomic and PHI/PII pipelines (HIPAA), run monitoring and incident response, prepare for HIPAA/SOC2/ISO27001 audits, perform pentesting/vulnerability discovery, improve logging/SIEM, and drive remediation with engineering and DevOps while raising company-wide security awareness.

Embed application security across a large cloud-native, microservices fintech platform: design secure architectures, run threat modeling, integrate SAST/DAST and dependency/secrets scanning into CI/CD, manage vulnerability lifecycle, support pentests and bug bounties, and improve secure coding and AppSec maturity.

Perform protocol-focused security research to prevent vulnerabilities on Ethereum mainnet. Tasks include AI-assisted analysis, fuzzing, manual review, reviewing hardforks and spec changes, improving security tooling and automation, coordinating disclosures, and supporting audits and audit competitions while collaborating with devops, specifications authors, and client implementers.

Define and execute the product roadmap for AI-driven blockchain security monitoring tools. Collaborate with cross-functional teams, analyze market and customer feedback, deliver features on time, and communicate with stakeholders to align expectations and improve product offerings.

Lead identification, mitigation, and prevention of security risks across teams. Architect and manage security solutions, enforce policies, perform penetration testing and purple teaming, monitor and respond to incidents, build automation and security frameworks, and collaborate on secure design and DevSecOps practices for a decentralized exchange.

Customer-facing senior consultant who integrates and supports Akamai security products, advises on web security strategy, resolves technical issues, collaborates cross-functionally, and contributes to training and best practices to ensure customer success.

Lead and improve ZODL security posture, manage incident response, coordinate external audits, advise staff on operational and personal security, prioritize mitigations, recruit security talent, and collaborate with engineering and research to secure Zcash software and protocols.

Lead high-volume vulnerability labeling, validate cloud findings, conduct deep research and proof-of-concepts for cloud/container vulnerabilities, and translate insights into product and model improvements.

Founding internal security engineer responsible for cloud and application security, security tooling, automation, monitoring, compliance (SOC2/ISO27001), vendor security, and incident response. Establish secure-by-default patterns and pragmatic controls that enable engineering at scale.

Lead and scale a security research function focused on cloud and application vulnerabilities, translate research into product capabilities and ML labels, mentor researchers, produce public-facing technical research, and define methodologies and review processes to improve detection, prioritisation, and remediation.

Own and scale Wayflyer’s security program: lead a security team, define strategy, run monitoring, detection and incident response, partner with engineering on cloud and application security, manage third‑party risk, ensure regulatory controls, and report security posture to leadership.

Own and evolve cloud infrastructure across AWS/GCP/Azure, build CI/CD and containerized deployments, design multi-tenant environments, implement monitoring and IaC (Terraform/Ansible), lead data protection and threat detection, and support compliance and security audits.

Design, implement, and maintain Firefox security architecture and cryptography stack (WebPKI, cryptographic protocols). Build web platform security features, debug multi-threaded cross-platform native code, improve performance and memory usage, collaborate across teams, and contribute to technical design and standards-based implementations.