OverviewAt Sunweb Group, we’re building and evolving the core systems behind millions of holidays each year. As a Senior Software Engineer, you contribute directly to how our platform is designed, scaled, and improved.LocationRotterdam / Girona Sunweb Group office (Hybrid)Start dateAugust 2026AvailabilityFulltimeWhat You’ll DoDesign and build scalable, cloud-native applications on AzureOwn technical decisions and contribute to architectureImprove and modernize existing (legacy) systemsDrive engineering practices like CI/CD, testing, and clean architectureIdentify and reduce technical debtCollaborate with product and stakeholders to deliver real impactMentor engineers and contribute to team growthHelp define team standards and technical directionOur tech stackC#, .NET, Azure, SQL, React, GitHub, GitHub Copilot, Visual Studio / VS Code. We actively leverage AI-powered tools such as GitHub Copilot to improve productivity and code quality.What You Bring5+ years of experience with C# and .NETExperience building cloud-native applications on AzureStrong knowledge of SQL and data modelingSolid understanding of system design and clean architectureExperience with CI/CD, automated testing, and DevOps practicesExperience with legacy systems and modernizationAbility to balance speed and quality pragmaticallyOwnership mindset and drive to improve systems and processesStrong stakeholder communication skillsExperience mentoring others and influencing technical directionWhy this role is interestingYou have real influence on architecture and technical decisionsA pragmatic engineering culture focused on impactInternational product with real scale and complexityOpportunity to own and shape the technical direction and ways of working of the teamWhat We OfferFor a Dutch contract (based in our Rotterdam office): Monthly gross salary between €6300 and €6700 plus 6 ATV days (based on full-time employment, excluding 8% holiday allowance). Please note: ATV days do not apply to part-time contracts.We enjoy the journey so enjoy 25 holidays based on fulltime employment.For a Spanish Contract (based In Our Girona Office): Yearly gross salary between €72.042,- and €76.618,- (based on full-time employment).We enjoy the journey so enjoy 23 holidays based on fulltime employment.Enjoy up to 20% off when booking with our brands for you, your family, and your friends.As an international company we support a hybrid way of working. We provide you with office furniture and IT equipment.A personalized Reflect & Develop Plan to support your career growth.Benefit from coaching sessions designed to support your well-being.Receive work-from-home and travel allowances to ease your daily routine.About Sunweb GroupSunweb Group is one of Europe’s largest online travel platforms, with over 1.3 million customers annually. We operate in 8 international markets with 600+ colleagues across Europe. We combine scale with a fast-moving, ownership-driven culture where teams are trusted to build and improve continuously.Equal Opportunity StatementSunweb Group is an equal opportunity employer, which means we do not discriminate in any way. We celebrate diversity and are committed to creating an inclusive and safe environment for all employees.Closing date for applications: 28th of June.#J-18808-Ljbffr

📌 Senior Software Engineer - €6.300 - €6.700 A Month (Madrid)
🏢 Sunweb Group
📍 Madrid