Top Tech Jobs & Startup Jobs in Barcelona

Develop, validate, deploy, and maintain machine learning solutions for medical device manufacturing and CAD/CAM systems. Build deep learning and multimodal AI models using computer vision, 3D geometry, meshes, images, and structured data. Integrate models into production systems, conduct performance analysis, maintain ML workflows, and translate research into practical manufacturing applications while collaborating with engineering, manufacturing, and product teams.

Design, implement, and optimize high-performance attention and foundational AI kernels for GPUs, NPUs, ASICs, and other accelerators. Build reusable attention-framework abstractions, profile workloads, develop benchmarks and correctness tests, analyze hardware and compiler behavior, and improve production inference performance. Collaborate with hardware and software teams, document designs, resolve ambiguous performance issues, and mentor engineers while supporting new accelerator architectures and AI workloads.

Open application for a remote, high-ownership role at a B2B agency focused on AI-era organic search. Responsibilities include running experiments, optimising content for LLMs and AI visibility, documenting learnings, using proprietary tools, collaborating async with clients and teammates, and improving processes to drive measurable search and content outcomes.

Owns full-cycle sales for Akamai’s cybersecurity, SaaS, and internet technology solutions across new and existing strategic accounts in Africa. Responsibilities include prospecting, relationship management, pipeline and forecast accuracy, quota attainment, executive-level engagement, and collaboration with internal teams and partners. The role requires enterprise technology sales experience, strategic account management, fluency in English and French, and travel for one to two weeks each month.

Lead and grow the Money & Risk engineering team responsible for fraud prevention, risk scoring, reconciliation, settlement, and chargebacks. Own technical direction for scalable, auditable, secure payment systems across 80+ countries. Drive architecture, engineering standards, AI-assisted development, hiring, coaching, and cross-functional delivery with Product, Data, Finance, Compliance, and Operations.

Design and scale backend services for AI-driven sales automation and agentic workflows. Own end-to-end features spanning databases, APIs, background processing, and integrations. Collaborate with product, AI, and frontend teams while championing code quality, testing, performance, security, scalability, and maintainable architecture. The role involves PHP and Python development, cloud infrastructure, asynchronous processing, third-party and LLM integrations, microservices, and multi-tenant SaaS systems.

Owns regulator-facing compliance work across cryptoasset, e-money, and payments programs. Responsibilities include drafting policies and regulatory submissions, designing Travel Rule and blockchain-analytics controls, supporting DORA documentation, managing safeguarding and wind-down materials, assessing products and counterparties, coordinating regulator responses, and tracking commitments through closure. The role requires substantial authorization experience, regulatory drafting expertise, and knowledge of transaction monitoring, sanctions screening, and compliance controls.

Develop and maintain high-load, real-time personalization services for global e-commerce platforms. Improve shopper experiences and business KPIs through applied machine learning, user interaction modeling, personalization and recommender systems, hypothesis validation, and A/B testing. Collaborate with engineering teams and business stakeholders to research, deliver, and communicate personalization capabilities and outcomes.

Lead OKX’s compliance program across European and UK entities, managing Country Heads of Compliance and MLROs. Set regional strategy, strengthen controls and workflows, oversee investigations, and engage with regulators, Boards, Legal, Product, Operations, and Risk. Build scalable, data-driven compliance frameworks using automation and AI-enabled tools while ensuring adherence to EU and UK regulations. Serve as the escalation point for complex compliance matters and develop senior compliance leaders across multiple jurisdictions.

Lead Trade Nation’s data and AI strategy, with emphasis on deploying AI into business workflows and enabling measurable adoption. Own the data warehouse’s business-facing gold layer, semantic models, data quality, analytics engineering standards, and self-service analytics. Lead and develop data analysts while partnering with engineering, compliance, and senior stakeholders. The role requires financial services experience, strong SQL and data modelling skills, cloud data platform expertise, and the ability to deliver AI initiatives from concept through production.