Senior Software Engineer
Senior Software Engineer

Senior Software Engineer

Full-Time 60000 - 80000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Own full-stack features from design to deployment, integrating AI for smarter solutions.
  • Company: Join OAG, a leader in transforming global travel with innovative data and technology.
  • Benefits: Enjoy flexible working, competitive pay, private health insurance, and generous holiday allowances.
  • Other info: Inclusive culture with opportunities for growth and learning in a dynamic environment.
  • Why this job: Make a real impact in the travel industry while working with cutting-edge technology.
  • Qualifications: Extensive full-stack experience, strong front-end skills, and a passion for great user experiences.

The predicted salary is between 60000 - 80000 £ per year.

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.

ABOUT THE ROLE

OAG Digital is the team turning our world-class data into a product-led growth engine. A unified experience where customers can sign up, explore, and extract value on their own. You'll work across two areas. Core is the platform backbone - identity, auth, entitlements, billing, and the infrastructure everything else depends on. Intelligence is the layer above the data - AI-powered insights, predictive models built on Databricks and Snowflake, anomaly detection, and agentic features. This is a full-stack role. You'll own features from the data layer to the customer-facing interface. We care about UX as much as throughput, and we're AI-native - tooling is part of how we develop, not an afterthought.

WHAT YOU'LL BE DOING

  • Own features end-to-end - from problem-shaping with Product and Design through implementation, testing, production releases and future enhancements
  • 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: auth, entitlements, billing integrations, and usage management
  • Integrate AI models, data pipelines, and event-driven systems on Databricks and Snowflake 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

WHAT WE'RE LOOKING FOR

  • Extensive full-stack experience building and shipping production-grade systems
  • Strong front-end skills (React, TypeScript, or equivalent) with genuine care for great web interfaces
  • A builder’s mindset. You understand the who and the why, and you own what ships.
  • Strong C# (or comparable OO language) and confidence across the full stack
  • Solid system-design knowledge (scalability, reliability, security) and the ability to defend architectural trade-offs
  • Experience with CI/CD pipelines, automated testing strategies, and DevOps practices
  • Familiarity with relational and NoSQL databases, and comfort working with data at scale
  • Demonstrated ability to mentor engineers and lead - not just contribute to - technical decisions
  • Clear communicator who works directly with Product and Design and can shape problems as well as solve them
  • AI-native in how you develop - you use AI tooling daily and expect the same from your team

IT WOULD BE GREAT IF YOU ALSO HAD

  • Experience with Databricks or Snowflake, particularly in analytical or data-intensive contexts
  • Familiarity with AI/ML in production: model serving, prompt pipelines, or agentic patterns
  • Experience with consumption-based and subscription billing
  • Experience with self-serve billing platform integrations
  • Exposure to aviation, travel, or data-as-a-service businesses
  • Experience standing up or significantly improving engineering foundations for a new product or team
  • A portfolio showing you've raised the bar on UX, performance, or product craft

If you don't meet every requirement but feel excited about this role, we'd still love to hear from you.

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 package, including private health insurance, a company bonus scheme and enhanced pension scheme
  • 25 days holiday plus bank holidays, volunteering days and additional day off during your birthday month
  • Octopus EV salary sacrifice scheme
  • Work remotely anywhere in the world for up to 1 month per year
  • Annual learning and development budget.

OAG is committed to creating an inclusive workplace where everyone feels valued and able to perform at their best. We welcome applications from people of all backgrounds and experiences. If you require reasonable adjustments at any stage of the recruitment process, please let us know. We are happy to have an open conversation about how we can support you.

Senior Software Engineer employer: OAG

OAG is an exceptional employer that fosters a progressive, non-hierarchical culture where innovation is at the forefront of everything we build. With flexible working arrangements, an attractive benefits package including private health insurance and a generous holiday allowance, as well as a commitment to employee growth through annual learning budgets, OAG provides a supportive environment for Senior Software Engineers to thrive and make a meaningful impact in the travel industry.
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Contact Detail:

OAG Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Engineer

✨Tip Number 1

Network like a pro! Reach out to folks in the industry, attend meetups, and connect with current OAG employees on LinkedIn. A personal introduction can make all the difference when it comes to landing that interview.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your best projects, especially those that highlight your full-stack experience. Make sure to include any AI or data-driven work you've done, as it aligns perfectly with what OAG is looking for.

✨Tip Number 3

Prepare for the technical interview by brushing up on system design and coding challenges. Practice explaining your thought process clearly, as communication is key. Remember, they want to see how you think, not just what you know!

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you're genuinely interested in being part of the OAG team. Don’t forget to tailor your application to highlight your relevant experience!

We think you need these skills to ace Senior Software Engineer

Full-Stack Development
React
TypeScript
C#
System Design
CI/CD Pipelines
Automated Testing
DevOps Practices
Relational Databases
NoSQL Databases
AI/ML Integration
Data Pipeline Management
Mentoring and Leadership
Communication Skills
User Experience (UX) Design

Some tips for your application 🫡

Tailor Your Application: Make sure to customise your CV and cover letter to highlight your full-stack experience and how it aligns with the role. We want to see how your skills in React, C#, and system design can contribute to our mission at OAG.

Showcase Your Projects: Include examples of past projects that demonstrate your ability to build customer-facing experiences and backend systems. We love seeing a portfolio that showcases your UX improvements and technical achievements!

Be Clear and Concise: When writing your application, keep it straightforward and to the point. We appreciate clear communication, so make sure you articulate your thoughts well and show us how you can shape problems as well as solve them.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity to join our innovative team!

How to prepare for a job interview at OAG

✨Know Your Tech Stack

Make sure you’re well-versed in the technologies mentioned in the job description, like React, TypeScript, and C#. Brush up on your full-stack experience and be ready to discuss how you've built and shipped production-grade systems.

✨Showcase Your Problem-Solving Skills

Prepare to talk about specific challenges you've faced in previous roles. Highlight how you shaped problems with Product and Design teams and the innovative solutions you implemented. This will demonstrate your builder’s mindset and ability to lead technical decisions.

✨Emphasise Your AI Experience

Since OAG is embedding AI throughout their intelligence layer, be ready to discuss your familiarity with AI/ML in production. Share examples of how you've integrated AI models or used AI tooling in your development process to show you're truly AI-native.

✨Communicate Clearly

Practice articulating your thoughts clearly and concisely. You’ll need to communicate effectively with various teams, so prepare to explain complex technical concepts in a way that’s easy to understand. This will help you stand out as a clear communicator who can shape and solve problems.

Senior Software Engineer
OAG

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