Senior Fullstack Engineer

About the role

OAG Digital is seeking a Senior Fullstack Engineer to help turn world-class data into a product-led growth engine. You will own features end-to-end, working across the platform backbone and the intelligence layer to build customer-facing experiences and robust backend systems. This role requires a builder's mindset and a commitment to AI-native development practices.

Responsibilities

• Own features end-to-end from problem-shaping through implementation, testing, and production releases
• Build customer-facing experiences and the backend systems and data models behind them
• Evolve platform architecture across Core and Intelligence for scalability, reliability, and sustainability
• Lead technical decisions and engineering strategy, balancing innovation with pragmatism
• Build core platform capabilities including auth, entitlements, billing integrations, and usage management
• Integrate AI models, data pipelines, and event-driven systems into the Intelligence layer
• Maintain the quality bar through code reviews, automated testing, observability, and CI/CD
• Support junior and mid-level engineers and help them grow

Required skills

• Full-stack development
• React
• TypeScript
• C#
• System design
• CI/CD
• Automated testing
• DevOps
• Relational databases
• NoSQL

Nice to have

• Databricks
• Snowflake
• AI/ML
• Model serving
• Prompt pipelines
• Subscription billing

Benefits

• Private health insurance
• Company bonus scheme
• Enhanced pension scheme
• 25 days holiday
• Birthday month day off
• Octopus EV salary sacrifice scheme
• Annual learning and development budget

About the Company

OAG is an essential intelligence partner for the global travel industry, combining unmatched data quality with breakthrough technology. They power the entire travel ecosystem, from airlines and airports to technology companies and financial institutions, by embedding AI throughout their intelligence layer.