Senior Backend Developer (.NET / Go ) | High-Scale Systems | Cloud & Microservices

About WebBedsLaunched in 2013, WebBeds is a global marketplace for the travel trade, providing powerful distribution solutions that make selling and buying travel products easier. It sources accommodation and destination services from travel suppliers, aggregates and merchandises that content in the WebBeds platform, then distributes it to its global network of travel trade buyers, who sell to the travelling public.Hotels and other suppliers - global and regional hotel chains, independent hotels, apartments, resorts, attractions, transfer and sightseeing companies and more - can sell their products to a global network of online and offline travel buyers through robust solutions that provide greater inventory control to simplify distribution, and leverage WebBeds enhanced analytics to inform inventory optimisation choices – saving costs and increasing revenue.Travel buyers - online travel agencies, retail travel agents, corporate travel managers, tour operators, wholesalers, tourism boards, super apps, DMC’s, group providers, airlines and more - can integrate the hundreds of thousands of hotels and ground services in the WebBeds marketplace through simple and seamless API connectivity, or they can search, shop and book online through one of WebBeds trade only booking sites.WebBeds operates globally through four geographic regions – Europe, Asia Pacific, MEA (Middle East and Africa) and Americas – with over 1,900 travel professionals working in 120 cities across 50 countries worldwide.Find out more about the WebBedsWebBeds is a travel brand of the Web Travel Group (ASX: WEB).How will you make an impact?As a Senior Software Developer at WebBeds, you'll play a pivotal role within our self‑managed delivery team, driving the development of sophisticated software solutions that align with our technical vision and business goals, embracing our core values of Trust, Teamwork, and Technology. Leveraging your extensive experience and technical expertise, you'll contribute to architectural decisions, mentor junior team members, and provide critical insights to shape our technology landscape. Leading by example with a strong work ethic that values personal and professional well‑being, and inspire the wider team to embrace these principles, fostering a culture of health and well‑being.Key elements to the role include:Lead technical discussions within the self‑managed delivery team, contributing insights during user story definition, planning sessions, and stakeholder interactions through collaboration, communication, and leading by example.Design and develop complex software solutions that adhere to WebBeds' technical standards and meet business requirements, demonstrating mastery of software development principles and fostering innovation, and embracing accountability, challenges, and continuous development.Provide mentorship to junior team members, nurturing their progress and enriching the team's overall skills, while empowering, guiding, and acknowledging their efforts.Drive architectural decisions, contributing to the evolution of WebBeds' technology stack and ensuring scalability, maintainability, and performance.Work closely with cross‑functional teams, such as QA engineers, product owners, and business analysts, to ensure smooth integration of development work, embodying the anatomy of effective teamwork, professionalism, and thoughtful consideration.Implement coding best practices, adhering to design patterns, SOLID principles, and security practices.Participate in code reviews, promoting a culture of constructive feedback and continuous improvement, while embracing mistakes as opportunities for learning and growth.Troubleshoot and resolve complex technical issues, optimizing software solutions for performance and reliability.Stay informed about industry trends, emerging technologies, and advancements so you continually enhance your skills and contribute to technical innovation.Inspire and lead by example, fostering a security‑first mindset and influencing the team to prioritize security in all development activities.The skills we would love to see in your suitcase!Strong proficiency in at least one of .NET or Golang, with a demonstrated ability to read, understand, and debug code. Adaptability to cross‑train in the other language as needed, with the mindset to use the right tool for the job.Debugging complex issues in distributed systems (e.g., deadlocks, race conditions) and optimizing resource‑heavy processes.Mastery of concurrency patterns:.NET: Task Parallel Library (TPL), asynchronous programming, and thread‑safe collections.Go: Goroutines, channels, and `sync` package primitives (e.g., mutexes, wait groups).Experience designing and optimizing RESTful APIs for high traffic (10k+ concurrent users) and low‑latency requirements is a plus.Strong knowledge of distributed system architectures and design patterns.Experience with microservices architecture and service‑oriented design.Experience with containerizati