Top Tech Jobs & Startup Jobs in Madrid

Own retention, onboarding, win-back, and outside sales agency performance for premium online learning programs. Lead complex retention conversations, manage refund and churn reduction experiments, improve onboarding and customer experience, verify agency sales, maintain performance data, and report recommendations to leadership. The role requires strong commercial judgment, data fluency, CRM and Zendesk proficiency, vendor management, and experience improving retention, churn, or conversion metrics.

Provides advanced technical support for backend, integration, database, configuration, and performance issues in cloud and self-hosted environments. Troubleshoots Java web applications, APIs, databases, Linux systems, networking, Kubernetes, and customer environments. Investigates logs, queries, metrics, and application behavior; develops scripts and workarounds; reproduces and documents defects; supports escalations and on-call incidents; and collaborates with Engineering and Product on resolutions and documentation.

Lead partnership development across EMEA with advertising networks, agencies, resellers, and technology partners. Develop regional go-to-market and partner marketing strategies, generate partner-sourced pipeline, manage reseller programs, educate partners on Singular’s platform, support agency relationships and customer onboarding, and advocate for partner needs with Product, Integrations, and R&D. The role focuses on driving mutual business growth, revenue, and strategic channel relationships in the mobile advertising ecosystem.

Own backend product features end-to-end, including solution design, API and data-model development, deployment, production support, refactoring, testing, observability, and incident resolution. Build scalable workflow automation, synchronization, document-processing, e-signature, and integration capabilities. Collaborate across engineering and support teams, use AI in daily development, improve release processes, and make autonomous product and architectural decisions.

Leads strategic relationships with Health & Beauty clients, delivering consumer insights and consultancy that support commercial decisions and growth. Translates complex consumer panel and market data into compelling recommendations, manages projects and stakeholders, supports business development, collaborates internationally, and coaches junior team members.

Grow and manage Axelera AI’s developer community across forums, GitHub, social channels, and events. Responsibilities include answering technical questions, creating tutorials and product content, organizing webinars and meetups, building relationships with influencers and power users, advocating for community-requested product improvements, supporting open-source contributions, and tracking engagement and health metrics. The role requires technical literacy in AI hardware, SDKs, embedded systems, maker platforms, and AI-assisted content and analytics tools.

Leads a corporate sales team in Spain, driving monthly targets, enterprise negotiations, team performance, hiring, onboarding, training, and strategic initiatives. Analyzes sales data, manages C-level stakeholder relationships, collaborates on corporate partner onboarding, and represents the company at industry events and trade shows. Requires extensive sales leadership experience, HR and employee benefits knowledge, CRM expertise, and strong presentation skills.

Senior Software Engineer to design and implement C++/Python software, accelerate workloads with CUDA, develop and maintain Linux kernel modules and system services, optimize system and GPU performance, manage Linux systems, mentor junior engineers, and integrate AI technologies across products.

Build and improve reliable, user-focused product experiences across the frontend and backend. Partner with Product, Design, and Engineering to understand user needs, propose solutions, implement features, troubleshoot software, write documentation, and contribute to technical and product decisions. Develop tested JavaScript or TypeScript code using React, Node.js, and related technologies while continuously learning and taking ownership of increasingly complex problems.

Build and ship LLM-powered tools, agents, and automations for marketing and growth teams. Identify repetitive processes, integrate AI with advertising, attribution, analytics, and marketing platforms, and deliver end-to-end solutions for reporting, creative generation, campaign analysis, and channel optimization. Measure business impact, collaborate with marketing stakeholders, and operate autonomously in a fast-moving startup environment.