Defence. Technology. European security.
MSSG NEWS / JOBS
Browse European openings at cybersecurity companies and security-related roles across our monitored employers. Opportunities can span engineering, research, incident response, customer support and commercial teams.
Browse current vacancies (630) ↓Distinguish product security from security operations, threat research and industrial-system protection. Check the technologies, customer environments and on-call expectations in the listing. A commercial role at a security vendor belongs to the sector but should not be confused with a hands-on security engineering position.
630 vacancies · 39 employers
Most represented functions: Engineering (336) · Business development (103) · Research (32) · Production & operations (7)
Browse vacancies ↓ARX Robotics · Ajax Systems · Alice & Bob · Anduril · Anthropic · Cato Networks · Chainguard · Civitta · Cohere · Corelight · Dragos · Elastic · ElevenLabs · Exein · Filigran · Fractile · Huntress · IonQ · Isar Aerospace · Nebius · Northwave Cyber Security · Novaspace · Nozomi Networks · OpenAI · Proton · Recorded Future · Saviynt · SentinelOne · Sine Engineering · Snyk · Sonar · Swarmer · Synthesia · Tenable · Tesorion · Tines · Torq · Vectra AI · Wiz
Employer listings, checked daily. Descriptions retain their source language. This collection covers monitored employers, not the whole market.
Geneva
Own ABM strategy and account selection: Define and run Sonar’s account-based marketing strategy across one-to-one, one-to-few, and one-to-many tiers — partnering with sales to select, segment, and prioritize target and expansion accounts based on fit, intent, and opportunity. Build and execute multi-channel account plays: Plan, build, and continuously optimize personalized campaigns across paid (e.g., LinkedIn, displ
CheckedGeneva
Contribute to the different areas of the Platform vision and communicate about them, internally and externally. Research, clarify, and prioritize opportunities to build and maintain an effective roadmap, focused on customer trust and platform readiness. Interact directly with our users and customers on our product forum to support them, integrate their feedback, and identify opportunities. Develop a deep understandin
CheckedGeneva
Understand product usage. Work closely with product managers (PMs), building a deep understanding of the product itself, to analyze how customers adopt and use it, and identify patterns in engagement, feature usage, and retention.to Analyze how customers adopt and use the product, and identify patterns in engagement, feature usage, and retention. Connect usage to outcomes. Link product usage data to customer and sale
CheckedGeneva
Develop, enhance, and operate cloud solutions on AWS with a focus on automation, high performance, scalability, and cost-efficiency. Take part in the definition of novel cloud solution designs and lead their development. Work in sprints with other engineers (backend, frontend, SRE, and other CPEs) as part of a cross-functional team to deliver new features into production. Collaborate with other squads in Product Deve
CheckedGeneva
Who is Sonar? Sonar is driving the future of agent-centric software development. As the leader in AI code review and verification, we solve a critical problem: ensuring that software generated by AI-assisted developers or autonomous agents is reliable, secure, and maintainable. Integrating seamlessly with Claude Code, Codex, Cursor, GitHub Copilot, Gemini, and Devin, we help over 75% of the Fortune 100 build trusted,
CheckedGeneva
System Health Monitoring, Alert Triaging, and Error Budget Management: Dedicate time to monitoring critical security infrastructure (e.g., identity platforms, firewalls, compliance systems) and core infrastructure components. Focus on using and maintaining dashboards tied to Service Level Objectives (SLOs), triaging high-severity alerts, and analyzing the current Error Budget burn rate to guide prioritization for the
CheckedFrance
Provide technical validation of Cato Networks solutions to prospects Development and delivery of product demonstrations Presenting the product to customers and at field events such as conferences, seminars, etc. Respond to functional and technical elements of RFIs/RFPs Convey customer requirements to Product Management teams Travel throughout sales territory Requirements 4+ years of Pre-Sales or Consulting experience
CheckedParis, Paris, France
Responsible for the health of the assigned accounts and ensure our customers continue to stay and grow with us and realize the full value of their investment in our technology Develop meaningful relationships with key stakeholders within the customer as well as Cato’s teams (Sales, Customer Success, R&D and Support Engineering) Own and orchestrate Cato's post sales motion, including conducting QBRs, product adoption
CheckedMünchen, Bavaria, Germany
· Provide practical, business-oriented legal advice and actively support company departments (Sales, Product, Operations, Marketing, HR, etc.) in addressing a wide variety of legal and commercial matters · Structure, draft, and lead the negotiation of complex agreements, while effectively engaging with sales professionals, internal stakeholders, and representatives of customers and partners across APAC and
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WizMadrid, Spain; Remote - Spain
Value Selling: Create high-quality deliverables that communicate strategic agreement, present multi-year roadmaps, and document the full business case to justify action by developing compelling business case and ROI analyses. Orchestration: Lead and facilitate discovery sessions to understand customers' current challenges and future business capabilities, identifying and prioritizing key business value drivers. Sales
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Nozomi NetworksUnited Kingdom
We are seeking someone who can quickly ramp up on our product offerings, client engagement model and renewal processes, whilst building out our global renewals team. You will play a critical role in supporting our customer success and revenue organizations, and your work will directly impact our corporate goals. This is a unique opportunity to build a global renewals team, whilst implementing best practice processes
CheckedGeneva; Taipei; Skopje
MSA builds and operates services responsible for different domains. You will: work with other engineers and analysts to design, build, and operate these systems work on user-facing features involving frontend and backend software development You will have the opportunity to play Product or Project Managers roles and lead the whole planning and development process be responsible for the operational excellence of the s
CheckedBarcelona; Paris
Develop and maintain cross-platform mobile applications for Android using a blend of cross-platform (Rust) and native technologies (Kotlin) Take end-to-end ownership of mobile application development projects: you'll be comfortable with scoping projects, walking back from deadlines and being able to discern the important from the superfluous Foster a culture of innovation by exploring new technologies, methodologies
CheckedLondon, Paris, Geneva
Own the end-to-end user funnel, including signup, onboarding, activation, free-to-paid conversion, upgrade paths, and retention, and identify where friction or leverage exists at each stage Design and ship in-product growth experiments (onboarding flows, activation nudges, paywalls, upsell moments, referral and invite mechanics) in close partnership with product managers and engineers Partner closely with product mar
CheckedBarcelona; Geneva
Infrastructure Management: Oversee and optimize our rapidly expanding global network of thousands of servers Automation & Reliability: Design and implement automation systems that ensure 99.95%+ uptime across our infrastructure Problem Solving: Serve as an active member of the on-call rotation, troubleshooting complex technical challenges across different network environments and censorship scenarios Monitoring Excel
CheckedGeneva; London;
Architect and develop core libraries: Lead the design and development of core C#/TypeScript/Rust libraries that serve as the backbone for Proton Drive's applications. Cross-platform compatibility: Ensure compatibility and optimal performance across various platforms. Code review and optimization: Conduct code reviews and provide constructive feedback to ensure code quality, maintainability, and performance optimizati
CheckedGeneva; London
You will be responsible for designing, building, maintaining and evolving the sync SDK powering Proton Drive's desktop applications. This includes not only building the application internals (managing and syncing local and remote state, performing cryptographic operations, etc) but also helping us to build resilient, scalable applications (graceful degradation; log and metrics streams free of personally identifiable
CheckedZurich;
● Server stacking and cabling installation in our rooms ● Performing HW troubleshooting and basic HW repairs for Servers and Network equipment (PSU, Network cards, CMOS batteries, Memory, Optics...) ● Diagnostic and repair of defective network fiber links and interfaces ● Coordinate logistics for new hardware and parts procurement ● Supervision Data Center remote hands contractors, work orders plan and
CheckedBarcelona; Geneva; Vilnius;
Design and own Proton VPN’s performance framework, defining metrics and KPIs that reflect the real-world experience of users (time-to-connect, throughput, latency, stability, reconnection rates, etc.). Develop distributed testing systems that simulate real network conditions, including low bandwidth, packet loss, and high-latency scenarios. Continuously measure and analyze performance across platforms (desktop, mobil
CheckedSkopje
Interact directly with Proton Mail customers to answer questions regarding our services Help resolve technical support inquiries from customers and maintain the high levels of customer support and satisfaction we are known for Extensive troubleshooting in order to detect the cause of the issue Collaborate closely with our developers to improve Proton products based on customer feedback Helping to test the web and mob
CheckedParis; Geneva
As a Backend Engineer you will play a crucial role in developing Proton's most vital services and serving over 100 million users worldwide. We expect you to be customer-centric, continuously learning, passionate about technology and usability. You are an adept at turning technical complexities into seamless user experiences. Effective teamwork, collaboration with Product, Design, APIs, and your team, and data-driven
CheckedLondon; Geneva
Research: Assessing new technologies, supporting cross team and cross business unit technical decision making. Work breakdown: Transforming product specifications into technical requirements and lead your team to their successful implementation. Product development: Ensuring high-quality user experiences within our product portfolio by implementing, deploying and maintaining existing and new features. Scalability: En
CheckedBarcelona; Geneva;
As an engineer on our small Windows VPN team, you will be responsible for designing, building, maintaining, and evolving Proton’s applications on Windows. You will be involved in the entire application lifecycle, from feature design and implementation to CI/CD configuration, deployment, monitoring, and operational incident response. You will collaborate closely with product managers and engineers across the company t
CheckedLondon; Geneva;
Architect and develop core libraries: Lead the design and development of core Rust libraries that serve as the backbone for Proton web and mobile applications. Cross-platform compatibility: Ensure compatibility and optimal performance across various platforms, including web browsers and mobile devices. Code review and optimization: Conduct code reviews and provide constructive feedback to ensure code quality, maintai
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