backend developer English-speaking jobs in Santander

Experienced Financial Controller needed to manage financial operations, focusing on banking relationships and treasury. Responsibilities include bank reconciliations, cash flow oversight, and ensuring compliance with banking regulations. Fluent English is mandatory.

Junior Business Developer to manage the Danish market portfolio. Responsibilities include identifying new business, creating tailored solutions, and maintaining client relationships. Requires native/fluent Danish and B2+ English, with 1-2 years of relevant experience.

Business Development Manager to expand a global software delivery platform into new markets. Responsibilities include lead generation, client meetings, and developing tailored sales strategies. Requires IT sales experience and C2 proficiency in English and German.

Drive business development for global biotech and biopharma leaders, owning strategic accounts to deliver recurring revenue. Partner cross-functionally to shape proposals and act as a market voice. Requires 5+ years in B2B sales and advanced life sciences degree or equivalent experience.

Senior Account Manager for Global Partnerships owns relationships with 30-35 DSP and SSP partners. This role drives revenue, manages commercial agreements, and leads strategic growth initiatives. Requires 3+ years in programmatic advertising.

Maintenance Technician performs electrical and mechanical maintenance and repairs on production machinery, facilities, and systems. Focus includes preventive and corrective maintenance to ensure optimal equipment operation.

Dynamic teacher of Humanities with Business specialism needed. Deliver creative lessons from Key Stage 3 to Sixth Form, covering GCSE and IB syllabi. Promote independent learning and contribute to subject development.

Lead end-to-end operational execution for Customer Operations and Logistics across Spain. Oversee Customer Service, Order Management, Warehousing, and Transportation while driving operational excellence and digitalization.

Senior Specialist Designer to shape brand presence across 13 markets. Combine graphic design, AI-assisted production, and photography to create assets for all channels. Set quality standards and drive creative innovation.

Serve as the post-sales Customer Success leader, delivering Success Blueprints and driving adoption for assigned accounts. Requires 10+ years in z/OS and Mainframe Tools expertise, plus strong communication in English and Italian.

Commercial Operations & Projects Specialist for a global vaccine-focused pharmaceutical company. Coordinate regional commercial initiatives, track milestones, and align cross-functional projects across countries. Requires fluency in English and Spanish.

Define Flights Marketing strategy and lead execution/optimization across channels. Analyze complex datasets to drive data-driven growth for Agoda's Flights business. Lead and mentor a team of analysts.

Senior Commercial Manager to lead complex business development and growth for a global life sciences consultancy. Responsibilities include managing opportunities from qualification to contract execution, developing commercial strategies, and building client relationships. Requires 5+ years in sales with pharma/life sciences experience.

First Stage Researcher position for TOX-INN, a multisited research project exploring the habitability of the toxic. Requires a Bachelor's in Social Sciences, preferably Sociology or Anthropology, and a Master's in those disciplines.

This role manages customer orders from receipt to delivery for the Iberia region. Key duties include acting as the main customer contact, coordinating with internal departments, and resolving claims while ensuring service level compliance. Requires experience in Customer Service or Order Management, strong communication, and proficiency in English and French.

Pre-doctoral position in immunogenetics applied to animal health for the EARLYPTB project at NEIKER. Requires a university master's degree in a bioscience discipline and admission to a doctoral program.

Talent Acquisition Specialist supports the full recruitment cycle for all hotel positions. This role partners with leaders to meet staffing needs, ensuring an exceptional candidate experience while promoting the employer brand. Fluency in English and Spanish is required.

Lead global ESG engagement and partnerships, developing the ESG ecosystem and pro-bono portfolio. Manage stakeholder relationships with nonprofits and design employee engagement initiatives to drive social impact.

Senior Game Designer for Paper.io 2, focusing on improving and creating new multiplayer gameplay modes. This hands-on role requires designing, prototyping, and iterating on rules and objectives for fun, replayable experiences.

Customer Service Specialist (German Speaker) provides frontline L1 support for a global card issuing and embedded finance solution. Responsibilities include onboarding support, resolving inquiries on card usage, transactions, FX, and payments, and escalating complex cases. Experience in customer-facing roles is preferred.