Top Tech Jobs & Startup Jobs in Lisbon

Own the strategy, roadmap, and lifecycle of Cloudflare’s enterprise Email Security platform. Lead threat detection investments, Zero Trust integration, customer discovery, competitive differentiation, and global launches. Partner with engineering, threat intelligence, sales, and design teams to address email threats such as business email compromise and phishing. Drive product growth, enterprise adoption, and technical platform evangelism while making data-informed investment decisions.

Build and operate large-scale egress networking infrastructure powering Cloudflare products. Responsibilities include designing systems, writing specifications and production code, testing, deploying and monitoring releases, troubleshooting customer issues, collaborating with engineering and network teams, and participating in on-call rotations. The role requires Go or Rust, networking expertise, distributed systems experience, production debugging skills, and use of AI-assisted development tools.

Supports customer engagement and product adoption for a Business Intelligence platform by executing email campaigns, newsletters, webinars, and customer communications. Maintains CRM databases, audience lists, campaign calendars, and reporting dashboards; tracks performance metrics and gathers customer feedback. Collaborates with Product, Sales, Marketing, and Customer Success teams to improve engagement programs and promote platform capabilities.

Qualify prioritized leads through phone calls, email, and social media; assess business fit and timing; schedule qualified meetings with Field Sales representatives; confirm and remind merchants; maintain accurate CRM records; follow up on promising leads; close unsuitable leads with clear reasons; and track the quality and commercial impact of generated opportunities.

Evaluate and improve application security architecture, processes, tools, and documentation. Conduct security design reviews, code reviews, threat modeling, and security testing for applications, AI systems, LLM applications, and AI agents. Identify vulnerabilities and architecture gaps, collaborate with development and product teams on remediation, implement security best practices, and assist with security incident response.

Build and ship production AI systems, including LLM agents, retrieval pipelines, event intelligence, tool integrations, and inference services. Contribute code, tests, observability, evaluation, and monitoring for high-volume real-time systems. Collaborate with platform, product, and applied-research teams while learning to optimize latency, throughput, cost, reliability, and model quality through mentorship and code reviews.

Lead the design and delivery of AI-powered Notebook experiences, including reliable LLM-integrated workflows, context discovery, and integrations with third-party AI platforms. Partner with product and design, translate customer needs into technical solutions, mentor engineers, establish AI engineering practices, and operate production backend services. Build evaluation, testing, and operational strategies to manage model non-determinism and deliver trustworthy customer outcomes.

Manage office administrative operations and front-desk reception; enforce security protocols; coordinate vendors, events, internal communications, and local culture initiatives; partner with People, Inclusion, IT, legal, and executive teams; streamline local processes and support branding and office projects.

Client-facing implementation and advisory role managing strategic UK customers to optimize cash, treasury, payments and finance workflows. Drive product adoption, quantify ROI, translate finance ecosystems into scalable workflows, collaborate cross-functionally, and identify growth opportunities while acting as voice of the customer.

Provide out-of-hours business travel support through chat, phone, and email. Handle air, rail, hotel, and car bookings; assess urgent customer needs; resolve issues; guide users through Navan self-service tools; meet service-level and performance targets; maintain supplier and system knowledge; follow global policies; and share feedback with internal product and operations teams.

Enterprise Account Executive responsible for acquiring new enterprise customers, exceeding revenue quotas, building and managing an EMEA pipeline, developing partnerships, consulting senior executives, and accelerating SaaS buying processes. The role requires 7+ years of B2B SaaS sales experience, including new-business closing, enterprise account experience, and professional fluency in English plus French or German.