At a Glance
- Tasks: Lead the delivery of high-impact features for the Avios App using React Native and .NET.
- Company: Join a dynamic team at IAG Loyalty, known for innovation and collaboration.
- Benefits: Enjoy a hybrid work model, competitive salary, and opportunities for professional growth.
- Other info: Be part of a supportive team that values continuous improvement and mentorship.
- Why this job: Make a real impact by owning projects from ideation to delivery in a fast-paced environment.
- Qualifications: Expertise in React Native or .NET/C# with experience in end-to-end feature delivery.
The predicted salary is between 60000 - 80000 £ per year.
We are looking for a Senior Full Stack Engineer to lead the delivery of complex, high‑impact features across the Avios App's mobile and backend systems. You should have deep expertise in either React Native or .NET/C#, with solid hands‑on experience in the other, enabling you to operate confidently across the full stack.
Responsibilities
- Deliver end‑to‑end features across the Avios App, building scalable, reliable solutions using React Native and .NET/C#.
- Collaborate with teammates across engineering, QA, Product Managers and Designers to break down complex problems and produce production‑ready solutions.
- Apply strong technical judgement to shape implementation approaches, challenge decisions where necessary, and maintain high standards of quality, performance and maintainability.
- Support the wider team through code reviews, mentoring, and continuous improvement of engineering practices.
- Identify opportunities to improve scalability, reliability and developer experience, fostering a culture of ownership and continuous improvement.
Qualifications
- Strong experience delivering customer‑facing applications at scale.
- Deep expertise in either React Native or .NET/C#, and hands‑on experience in the other.
- Experience delivering features end‑to‑end across mobile and backend systems.
- Clear understanding of how mobile and backend systems interact in a production environment.
- Strong understanding of APIs, distributed systems and cloud environments (AWS preferred).
- Experience with CI/CD, automated testing and modern engineering practices.
- Ability to contribute to technical discussions and influence implementation decisions.
- Experience mentoring engineers and raising engineering standards.
- Strong communication and collaboration skills.
What we might not be right for you if
- You only want to focus on your to‑do list; we’re a small, high‑performing team that helps each other succeed.
- You value perfection over fast iteration and progress; IAG Loyalty moves fast, learning and iterating as we go.
- You’re looking to create but not build; this is an end‑to‑end role, so you need to be comfortable owning your space from ideation through delivery and review.
Location & Working Arrangement
This role will work as part of our Loyalty Division and is based out of our London office. The team follows a hybrid model (The Blend), requiring employees to spend at least two days per week in the office, with the rest of the time working from home. You may also be required to work from one of our other office or partner locations, based on your role and responsibilities.
Senior Full Stack Engineer (React Native / .NET) in London employer: Avios Group (AGL) Limited
At IAG Loyalty, we pride ourselves on being an excellent employer that fosters a collaborative and innovative work culture. As a Senior Full Stack Engineer, you will have the opportunity to lead impactful projects while benefiting from our commitment to employee growth through mentorship and continuous improvement initiatives. Our London office offers a hybrid working model, allowing for flexibility and a balanced work-life environment, making it an ideal place for talented engineers to thrive.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Full Stack Engineer (React Native / .NET) in London
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We think you need these skills to ace Senior Full Stack Engineer (React Native / .NET) in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Avios Group (AGL) Limited.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Avios Group (AGL) Limited and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Avios Group (AGL) Limited
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Avios Group (AGL) Limited uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
