.NET Software Engineer

OAG is the essential intelligence partner transforming global travel. For nearly a century, we've been the foundation the travel industry builds on, trusted, proven, essential. Today, we're going beyond. We combine unmatched data quality, quantity and access with breakthrough technology and deep industry expertise to deliver what the industry truly needs: not just more data, but better answers. From real-time operational intelligence to strategic decision-making, we power the entire travel ecosystem, from airlines and airports to technology companies and financial institutions. We are actively embedding AI throughout our intelligence layer, combining nearly a century of proprietary data with the latest technology to deliver answers that were simply not possible before. We exist because travel moves the world, and we move travel. By transforming complexity into clarity and questions into answers, we give our partners the intelligence they need to thrive in an evolving world. For more information visit www.oag.com ABOUT THE TEAM: You’ll join a team of 4 engineers based in Vilnius, building and evolving a highly scalable, cloud-native platform that underpins all of our web crawling and other capabilities. The team owns a complex, multi-component system running fully in AWS cloud, including an in-house framework developed internally and a large-scale identity management platform. The systems are designed to operate at significant scale, supporting thousands of crawler instances running concurrently and processing up to billions of data points every month. The team focuses heavily on system design, optimisation, and scalability, and is currently working on redesigning the system and building core components from scratch to support both internal users and external integrations. This is an engineering-led team with strong ownership over architecture, performance, and long-term platform evolution. WHAT YOU’LL BE DOING: • Design, develop, and maintain scalable backend services using cloud-native and serverless patterns • Build and operate event-driven and message-based systems to handle high-throughput data flows • Develop containerised services • Work with data platforms using SQL , supporting ingestion, transformation, and delivery use cases • Own services in production, including deployment, monitoring, observability, and reliability • Contribute to architectural discussions and help shape technical direction and best practices • Identify and address technical debt, performance issues, and operational risks • Collaborate closely with other engineers, sharing knowledge and raising engineering standards WHAT WE’RE LOOKING FOR: • Several years’ experience building and operating production backend systems • Strong experience with C# / .NET • Solid SQL skills and experience working with relational or analytical databases • Hands-on experience with cloud platforms (AWS preferred, others welcome) • Experience designing or working with distributed or event-driven systems • Experience with CI/CD pipelines and modern development workflows • Strong understanding of clean code, testing, and software engineering best practices • Comfortable working in Agile teams (Scrum, Kanban, or similar) • Fluent in English. IF YOU HAVE THE FOLLOWING THAT WOULD BE GREAT: • Experience with Terraform or infrastructure-as-code tools • Familiarity with Snowflake, Databricks, or modern data platforms • Experience with monitoring and observability tools • Interest in data-intensive or analytics-driven products. WE WILL OFFER YOU: 🚀 A progressive, non-hierarchical culture where innovation drives everything we build 🏡 Flexible working arrangements that allow remote work or office attendance 💰 An attractive compensation and benefits pa