Top Tech Jobs & Startup Jobs in Spain

Own end-to-end supply integrations with SSPs, ad servers, and publishers. Build connectors, parsers, and bid-stream integrations; troubleshoot malformed requests, fill-rate discrepancies, and partner issues. Serve as the technical contact for supply partners, shape inventory strategy, define integration standards and monitoring, and collaborate with exchange, bidder, and product teams. The role combines software development, programmatic protocol expertise, commercial supply knowledge, and operational ownership in an on-site Barcelona startup.

Develop, deploy, and maintain scalable AI/ML pipelines and production models, including LLMs and generative AI. Optimize model performance, latency, and cost across AWS, GCP, and Azure. Apply MLOps practices such as CI/CD, versioning, monitoring, logging, and maintenance. Collaborate with data scientists, software engineers, solution architects, and cross-functional teams to integrate AI capabilities into products and workflows.

Advise senior management on HR strategy and people matters, manage the full employee lifecycle, oversee HR governance and policies, address employee relations and compliance issues, support talent and organizational development, monitor budgets and KPIs, and coordinate HR activities across Alcazar HQ and multicultural teams in Europe.

Lead branding projects from concept through delivery, creating visual narratives, design systems, guidelines, and brand experiences across digital and physical outputs. Present work to clients and internal teams, manage design quality, and collaborate with writers, strategists, designers, developers, and external creative partners. The role requires strong art direction, screen-based brand expertise, independent initiative, and effective collaboration in a multidisciplinary studio.

Leads client-facing WMS solution consulting and billable professional services engagements. Responsibilities include discovery workshops, solution architecture, proposals, SOWs, commercial negotiations, pre-sales demonstrations, implementation oversight, financial and margin management, stakeholder relationships, account expansion, reusable deliverables, mentoring, and process improvement.

Provides clerical and administrative support to the HR department, including recruitment and onboarding coordination, contract and employee record management, leave and time tracking, payroll data preparation, Workday data maintenance, labor compliance support, employee communications, event logistics, and responding to routine employee inquiries. Requires Spanish and English fluency and a valid work permit for Spain or Europe.

Own Curewiki’s commercial presence in Spain, developing the go-to-market strategy, generating a qualified life-sciences pipeline, and managing the full sales cycle through contract signature. The role also supports initial customer onboarding, account expansion, market representation, and coordination with enterprise sales, partnerships, and customer success teams. Candidates need an established Spanish life-sciences network, full-cycle sales experience, market-opening experience, native-level Spanish, professional English, AI-first working habits, and disciplined HubSpot pipeline management.

Own the user acquisition creative strategy for mobile games by researching market and competitor trends, generating creative hypotheses, developing production briefs, directing internal and external creators, and analyzing performance data. Build a continuous testing pipeline across video, UGC, gameplay, AI-generated, playable, and other ad formats. Use insights to identify winning concepts, combat creative fatigue, guide production partners, and improve UA performance.

Create original city quests featuring storylines, challenges, interactive tasks, routes, descriptions, and location photos. Test quests before publication and update them as needed. The role is remote and project-based, with onboarding, creative independence, and revenue sharing. Candidates should know their local area, write and tell stories well, demonstrate creativity and attention to detail, and work reliably and independently.

The Content Specialist will develop content strategies, create briefs, support copywriting and SEO optimization, and maintain a content calendar with the team.