Top Tech Jobs & Startup Jobs in Barcelona

Manage end-to-end customer onboarding, product setup, training, follow-ups, satisfaction check-ins, retention, and win-back initiatives. Coordinate with Sales, Support, and Technical teams, resolve customer challenges, collect feedback, encourage product engagement, and build long-term relationships. The role is fully remote with occasional visits to Luxembourg headquarters and requires Dutch or French plus English.

Owns Phrase’s global Customer Success strategy, organization, operating model, budget, KPIs, and retention and growth outcomes. Leads regional and team-level Customer Success leaders, develops executive relationships with strategic accounts, drives expansion with Sales, Product, and Marketing, represents customer needs to executives and the Board, and builds a data-driven global CS culture in a B2B SaaS environment.

Work with EMEA enterprise customers to design, build, and scale quantum applications. Lead onboarding, training, technical support, and collaborative quantum algorithm projects; identify technical opportunities, relay customer feedback to Product, and develop reusable tools and methodologies. The role requires strong quantum software development skills, Python and quantum SDK proficiency, clear technical communication, and experience working with R&D and engineering teams.

Own end-to-end analytics for subscription products and web funnels, including KPI definition, dashboards, funnel and cohort analysis, payment performance, user behavior, experimentation, and anomaly monitoring. Build reliable SQL data models and maintain event taxonomies and tracking. Partner cross-functionally with Product, Marketing, Engineering, Finance, and BI to improve conversion, retention, revenue, and LTV. Mentor analysts and communicate actionable recommendations to stakeholders.

Architect, build, and own AWS infrastructure supporting highly available SaaS products. Drive cloud migrations, automation, scalability, security, observability, and reliability improvements while partnering with developers and cross-functional teams. Participate in weekly on-call rotations, lead root cause analysis, and eliminate recurring operational issues. The role requires hands-on experience with AWS, infrastructure as code, CI/CD, configuration management, monitoring, GitOps, and multiple programming and scripting languages.

Develop and maintain responsive frontend applications using TypeScript, integrate APIs and services, implement UI/UX designs, optimize performance and scalability, apply frontend security and data protection practices, troubleshoot issues, participate in code reviews, and contribute to open-source privacy-focused projects.

Own paid acquisition strategy and quality standards across 25+ SaaS brands. Manage high-value Google, Microsoft, LinkedIn, and other ad accounts hands-on; lead PPC freelancers; advise brands on budgets and channel strategy; establish campaign, tracking, attribution, documentation, and reporting systems; support acquisitions and partner with analytics and SEO teams.

Design, implement, and maintain blockchain infrastructure and dApps. Develop and review smart contracts, optimize consensus and cryptography for scalability and security, troubleshoot performance and reliability issues, and collaborate with product and design teams to deliver features while staying current with blockchain advancements.

Build and maintain native iOS apps for 3D visualization and AI-assisted field workflows. Implement UI components, integrate backend and real-time data, optimize performance and memory, write clean Swift code, participate in architecture and code reviews, and troubleshoot device-specific issues while collaborating with product, design, and AI teams.

Design, develop, and maintain high-quality web applications using CodeIgniter and PHP. Collaborate with cross-functional teams to define and ship features, ensure application performance and quality, identify and fix bugs, and maintain code quality and automation.