Senior Product Engineer - Supply Team in Madrid, Madrid, Comunidad de at Jobgether

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Product Engineer - Supply Team based in Spain.

This role offers the opportunity to build foundational technology that transforms how businesses operate within the global travel ecosystem.
You will work on complex product challenges involving marketplaces, pricing systems, supplier networks, and scalable infrastructure.
The position combines hands-on engineering with strong product ownership, allowing you to influence what gets built and how it delivers value.
You will collaborate closely with product teams, designers, and engineers to create reliable solutions from concept through production.
Working in a distributed and innovative environment, you will help shape systems used by thousands of businesses worldwide.
This is an ideal opportunity for a senior engineer who enjoys solving ambiguous problems, mentoring others, and building impactful products from the ground up.

As a Senior Product Engineer, you will take ownership of designing, developing, and scaling core product capabilities while contributing to engineering excellence across the organization.

• Lead the full development lifecycle of product features, from understanding user needs and shaping solutions to architecture, implementation, deployment, and production monitoring.
• Build and improve systems supporting pricing, supplier management, product catalogs, partner relationships, commissions, and marketplace functionality.
• Collaborate closely with product teams to identify customer problems, evaluate opportunities, and make informed decisions about what should be built.
• Develop high-quality, maintainable frontend and backend solutions using modern technologies, including TypeScript, React, and backend frameworks or languages.
• Design resilient applications with strong monitoring, reliability, and scalability practices while participating in incident response and production ownership.
• Contribute to engineering standards, technical decision-making, and best practices across the team.
• Mentor other engineers through knowledge sharing, technical guidance, code reviews, and support for professional growth.

The ideal candidate is a senior full-stack engineer with strong product instincts, experience building scalable applications, and the ability to operate effectively in a fast-moving environment.

• 7+ years of software engineering experience, ideally with full-stack development experience and strong ownership of product outcomes.
• Strong hands-on experience with React and TypeScript, including ownership of significant frontend applications or product areas.
• Solid backend engineering experience with modern programming languages such as Python, Go, Java/Kotlin, .NET, Node.js/TypeScript, or Ruby.
• Experience building and launching new products or major features in startup or scale-up environments, from early stages through growth.
• Broad technical experience across frontend, backend, distributed systems, microservices, and event-driven architectures.
• Experience operating production systems, including monitoring, alerting, reliability improvements, and on-call responsibilities.
• Strong communication skills with experience collaborating in multicultural and distributed teams.
• Experience leading projects, mentoring engineers, and influencing technical direction.
• Familiarity with AI development tools and assistants such as Cursor, Claude Code, or similar technologies.
• Experience with Ruby on Rails, cloud infrastructure, Kubernetes, marketplaces, payments, travel technology, B2B2C platforms, or AI-enabled applications is considered a plus.

The company offers a flexible and international working environment with competitive compensation, strong professional development opportunities, and support for long-term growth.

• Attractive compensation package.
• Full-time fixed-term contract as an international contractor.
• Unlimited paid time off through a flexible recharge policy.
• Opportunity to participate in international team gatherings and visit the headquarters for several weeks each year.
• Remote-friendly work model with the flexibility to work temporarily from approved locations.
• Extensive paid family leave.
• Three paid volunteer days per year to support causes you care about.
• Structured onboarding program to help you succeed from the beginning.
• Modern equipment and tools, including support for home office setup.
• Language learning support for colleagues who want to improve their English communication skills.
• Opportunity to join an international, collaborative team focused on innovation and meaningful impact.