Top Tech Jobs & Startup Jobs in Barcelona

Design and architect scalable, secure enterprise back-end systems using Java/Spring Boot, CQRS, messaging and RESTful APIs; collaborate in Agile teams, mentor developers, refactor for performance and cost, integrate cloud deployments and security, and lead data transformation initiatives.

Work directly with the founder to coordinate projects, manage the CRM and business development pipeline, prepare materials, handle scheduling and logistics, organise internal processes, and build AI agents and automated workflows to streamline repetitive work.

Build and own the Product GTM function: define positioning, target segments, early-adopter selection, sales narratives, customer feedback loops, adoption metrics, and sales enablement to drive commercial adoption of technical B2B/API products. Hands-on IC role reporting to the CEO with a path to lead and scale the function.

Own end-to-end product design for a mobile-first AI companion app: design relationship systems, character profiles, gamification, retention and monetization flows. Prototype and iterate from research and analytics into interactive prototypes and high-quality mobile-first interfaces. Build and maintain a cross-platform design system, collaborate closely with engineers, and contribute to brand and marketing as needed.

Lead and deliver EHS due diligence, compliance assessments and audits for M&A, private equity and operational clients. Review management systems, permits and regulatory obligations, develop corrective action plans, prepare technical reports, support business development, mentor junior staff, and monitor emerging EHS regulations across Iberia and Europe.

Provide administrative support to the claims team for financial lines (D&O, E&O, Crime). Tasks include logging and tracking notifications, opening and closing claim files, coordinating payment processes with finance, preparing audit documentation, assisting with monthly claims reports, and occasional reception duties.

Lead product positioning and messaging for an AI-native transcription and conversation-intelligence product. Talk to customers, run agentic growth experiments across channels, validate and scale high-intent niche segments, and own website and campaign copy.

Outbound prospecting to identify and qualify Spanish-market customers, engage prospects, book demos, maintain CRM records, collaborate with sales and marketing to refine messaging, run outreach campaigns, and provide feedback on market trends to improve approach.

No responsibilities or requirements are provided. The posting only states an opening and closing for a test requisition.

Design, build, and maintain Java backend services and APIs to support consolidation of enterprise data platforms. Drive migration of components, analyze integrations and data flows, troubleshoot distributed systems, write tested code, participate in design discussions, and document solutions while collaborating across engineering, data, and product teams.