Senior Full Stack Engineer - South Bank, QLD

At Flight Centre Travel Group (FCTG) our purpose is to 'open up the world for those who want to see'. Every day, we give people all around the world the opportunity to experience something amazing, travel! 

We're looking for a Senior Full Stack Engineer to help us build and scale a travel platform relied on by some of Australia's largest corporate operators. It's a full stack role for someone who genuinely enjoys the hard problems: complex, high availability systems that process high volume travel booking at scale, end to end, from backend services through to the interfaces people rely on every day. 

You'll be a key technical contributor on capabilities that matter, the kind of work that shapes how thousands of travellers experience booking, changing, and managing their trips. You won't be maintaining someone else's legacy code in isolation; you'll be designing and building new capability from the ground up, including change and cancellation support, waitlist management, and deep policy engine integration, then owning it end to end in production. This is a chance to make decisions that stick: the architecture you choose, the standards you set, and the patterns you introduce will shape how the platform evolves for years to come. 

Day to day:

Core Backend Development

• Design, build, and own complex backend services and APIs using C# / .NET (ASP.NET Core), with a strong focus on reliability, performance, and correctness
• Deliver new modules including: change and cancellation processing, waitlist capability, and policy engine integration across the travel platform
• Implement and consume RESTful APIs and SOAP/Web Services that integrate with airline GDS systems, internal booking engines, and third party travel platforms
• Build robust, fault tolerant service components capable of handling high volume, time critical travel booking
  

Frontend Development

• Design and build responsive, accessible user interfaces in React that give travel bookers and administrators a clear, reliable view into complex processes
• Own end to end feature delivery: from API design through to the React components and state management that consume them
• Work with component libraries and design systems to keep the UI consistent, maintainable, and easy to extend
• Optimise frontend performance (load times, rendering, bundle size) for users working in time critical, high pressure booking scenarios

System Reliability & Observability

• Ensure the platform maintains high uptime, this is a mission critical system for travel operations; downtime has direct operational impact
• Instrument services with Datadog, including APM tracing, custom metrics, log correlation, and dashboard creation to provide full observability across the travel booking stack, frontend and backend
• Define and monitor SLOs/SLIs, respond to incidents, and lead post incident reviews to drive continuous reliability improvement
• Proactively identify and resolve performance bottlenecks, memory issues, and degradation patterns before they impact customers

Architecture & Technical Leadership

• Lead technical design for new capabilities, producing clear architecture and API design documentation before implementation
• Conduct rigorous code reviews and hold the team to high standards for API design, exception handling, test coverage, component quality, and service contract quality
• Identify and reduce technical debt, particularly around legacy integration patterns, file based data exchange, and monolithic components
• Mentor and support junior and mid level engineers, particularly on C# best practices, .NET internals, React patterns, and API design

DevOps & Delivery

• Champion DevOps practices across the team: CI/CD pipeline ownership, automated testing (unit, integration, contract, and frontend), and deployment hygiene
• Collaborate with platform and cloud engineering on Azure based infrastructure, ensuring services are containerised, scalable, and maintainable
• Work closely with product managers, designers, and business stakeholders to translate complex travel booking requirements into clean, maintainable full stack solutions
• Participate actively in agile delivery processes, sprint planning, refinement, retrospectives and drive continuous improvement

You'll be perfect for the role if you have:

• 7+ years of professional software engineering experience with deep, hands on expertise across both C# / .NET (.NET 6+, ideally .NET 8) and React, comfortable owning features end to end rather than favouring one side of the stack
• Proficient with AI coding tools (Claude, GitHub Copilot) and able to critically evaluate AI generated code in production contexts
• Expert level knowledge of the .NET ecosystem: ASP.NET Core, Entity Framework Core, .NET Identity, and integration frameworks such as MassTransit or NServiceBus
• Expert level experience with React, including hooks, component driven architecture, state management, and building maintainable, well tested frontend applications
• Strong track record designing and building complex REST APIs and Web Services (SOAP/WSDL); including versioning, contract design, and error handling at scale
• Proven ability to instrument and operate production systems using Datadog: APM, dashboards, monitors, log pipelines, and AI powered anomaly detection and forecasting features
• Experience with relational databases (SQL Server, PostgreSQL, or Sybase) including complex query optimisation and schema design

Highly Regarded

• Experience in travel technology GDS systems (Amadeus, Sabre, Galileo), NDC, PNR management, travel platforms
• Background in resource scheduling and logistics
• Familiarity with API gateways, service mesh, microservices strategies
• Azure cloud experience: App Services, AKS, Service Bus, Application Insights
• Experience with design systems, component libraries, or accessibility (WCAG) standards

Tech Stack

• .NET 6 / 8, ASP.NET Core, C#
• React, JavaScript, HTML/CSS
• REST APIs, SOAP / Web Services (WSDL), JSON, XML
• Entity Framework Core, .NET Identity, MassTransit or NServiceBus
• SQL Server, Sybase, SQL query optimisation
• Datadog (APM, dashboards, monitors, log pipelines, SLOs)
• Azure (App Services, AKS, Service Bus, Storage)
• GitHub, Azure DevOps, Jenkins, automated CI/CD pipelines
• xUnit / NUnit, Moq, Jest / React Testing Library, integration and contract testing

What you will enjoy:

🙋🏾‍♀️Culture: you will be employed by an inclusive company that offers a team culture like no other in the industry - Flight Centre Travel Group Australia is proud to be a certified Great Place To Work® Australia New Zealand Pty Ltd
👐🏽 Our People: FCTG is an Equal Opportunity Employer and encourage all suitably qualified applicants to apply, including Aboriginal and Torres Strait Islander People and people from racial, ethnic, or ethno-religious minority groups and people with disability 
🎉Development: Individualised Learning & Development pathway options
🔧Access to 'LinkedIn Learning' for ongoing skills development: over 24,500 courses in over 20 languages
🏆Exclusive Staff Discounts: Accessible via our employee-only portal with 350+ of Australia’s leading retailers, health and wellness discounts, financial planning advice, employee share plan and more
🌏Travel Discounts: Including family and friends - flights, hotels, tours, cruises, travel insurance and more
💎Brightness of Future: Career opportunities in a network of brands and businesses across the globe - we promote from within  
🥦Corporate Health Discounts: Access exclusive discounts on health insurance plans for you and your family with our partner, BUPA, access to internal gym
🌞Mental Health: Support and Employee Assistance Program for staff and family
🎉Social: Regular awards nights, social team-building and industry events, with the opportunity to attend global conferences (Bangkok in 2026)  
🙏🏼 Giving Back: Corporate Social Responsibility program supporting nominated charities through Workplace Giving, volunteering and fundraising; paid parental and volunteer leave
💚Sustainability: The protection of our environment is essential to the future of tourism, as a leading travel group, we have made efforts to affect positive change to the environment