ABOUT THE COMPANY:OAG is a leading data platform for the global travel industry offering an industry - first single source for supply, demand, and pricing data.We empower the global travel industry with high-quality, relevant datasets covering the whole journey from planning to customer experience.Headquartered in the UK, with operations in the USA, Denmark, France, Germany, Singapore, Japan, China, and Lithuania.For more information please visit:https://www.oag.com/KEY RESPONSIBILITIES:The Senior Fullstack Software Engineer leads the endtoend design and delivery of modern web products, with a strong focus on Single Page Applications (SPAs) built using Angular (preferred), React or Vue.js on the frontend and robust C#/.NET services on the backend. The role sets engineering standards, guides architectural decisions, and mentors team members while driving continuous delivery practices to ensure scalable, secure and highquality solutions that satisfy our customers.Principal duties and responsibilities Include, but are not limited to:Lead the design, development and deployment of SPA frontends and .NET APIs/servicesShape system architecture for scalability, performance, security and longterm maintainabilityOwn CI/CD pipelines, DevOps practices and cloud infrastructure automationChampion cloudfirst solutions, leveraging AWS (preferred) or GCP/AzureOptimise relational and analytical databases (MS SQL, PostgreSQL, Snowflake)Mentor and support junior and midlevel engineers, fostering best practices and continuous learningCollaborate with Product, UX and Data teams to align technology with business valueDrive quality through code reviews, automated testing, monitoring and observabilityProactively manage technical debt and lead refactoring or modernisation initiativesSupport incident response, rootcause analysis and process improvementsContribute to a culture of collaboration, shared ownership and innovationExperience RequirementsExpert-level full-stack development with C#/.NET (Core & Framework); including designing and developing production systemsStrong background in building single-page applications (SPAs) using Angular (preferred), or React/Vue.js with TypeScriptExpertise in relational database design and query optimisation (MS SQL, PostgreSQL)Handson experience with at least one major cloud provider (AWS preferred; GCP or Azure acceptable)Record of implementing CI/CD pipelines, automated testing and DevOps practicesHands on experience mentoring engineers and influencing technical strategyWE WILL OFFER YOU:The opportunity to work with passionate individuals in the intersection of technology and the travel business domain.Company-provided free lunch every day.A modern office in a convenient location, with flexible working arrangements that allow remote work or office attendance.Opportunities for travel to our other offices, fostering a global perspective.Work remotely from anywhere in the world for 1 month each year.The chance to join an industry-leading international company with a commitment to innovation.An attractive compensation and benefits package, including private health insurance, a company bonus scheme, and voluntary participation in a company-supported retirement scheme.A generous annual leave policy, growing with each year of service, and a day off during your birthday month.Great growth and development opportunities, both professionally and personally.We will ensure that the exact salary offered for you will be based on your qualifications, competencies, professional experience and requirements for the corresponding job function (salary starts from 4080 EUR gross per month).