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For Companies At a Glance
- Tasks: Design and develop a high-impact web application from scratch using C#/.NET and React.
- Company: Join a leading global investment bank with a focus on innovation.
- Benefits: Competitive pay, hybrid work model, and opportunities for professional growth.
- Other info: Dynamic role with mentorship opportunities and a collaborative team environment.
- Why this job: Take ownership of a greenfield project and make a real impact in investment banking.
- Qualifications: Strong skills in C#/.NET and React, with experience in client-facing applications.
The predicted salary is between 50000 - 70000 £ per year.
We are working with a leading global investment bank to hire a hands-on Full Stack Engineer to help build a brand-new, high-impact web application from the ground up. This is a unique opportunity to take ownership of a greenfield project delivering a real-time web portal for institutional bond issuers and sales teams—providing live market insights and new issuance updates.
The Role
You will play a critical role in designing, developing, and deploying a full-stack web application, taking it from concept through to production. This role requires someone who can hit the ground running, build the entire development pipeline, and take ownership across the full software lifecycle—not just individual development tasks.
Key Responsibilities
- Back-End Development
- Design and build RESTful APIs using ASP.NET Core (6+)
- Develop clean, scalable, and testable C# code
- Manage data access using EF Core, Dapper, or similar
- Implement secure authentication (e.g. Azure AD, JWT)
- Build modern, responsive UIs using React (18+) and TypeScript
- Integrate components into existing web applications (Angular or similar)
- Apply best practices for performance, accessibility (WCAG 2.1 AA), and UX
- Contribute to development of secure, client-facing portals
- Design and implement CI/CD pipelines (Bitbucket, TeamCity or similar)
- Create build processes using MSBuild, npm/yarn, Webpack
- Configure automated unit, integration, and UI testing
- Manage deployments across staging and production environments
- Contribute to architectural decisions and code reviews
- Document APIs (Swagger/OpenAPI), deployments, and runbooks
- Mentor junior engineers and promote engineering best practices
What We’re Looking For
- Strong experience in C# / .NET and React development
- Proven track record building external client-facing applications or portals
- Experience delivering end-to-end solutions—from development to production
- Strong knowledge of CI/CD pipelines, build automation, and deployments
- Comfortable working in a greenfield environment with high ownership
- A self-starter mindset with the ability to drive delivery independently
Full Stack Engineer (C# / .NET & React) in City of London employer: Lorien
Contact Detail:
Lorien Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Full Stack Engineer (C# / .NET & React) in City of London
✨Tip Number 1
Network like a pro! Reach out to your connections in the investment banking sector or tech communities. A friendly chat can lead to opportunities that aren’t even advertised yet.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving C# / .NET and React. This gives potential employers a taste of what you can do and sets you apart from the crowd.
✨Tip Number 3
Prepare for interviews by brushing up on your technical skills and understanding the company’s products. Be ready to discuss how you can contribute to building that high-impact web application they’re after.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who take the initiative!
We think you need these skills to ace Full Stack Engineer (C# / .NET & React) in City of London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with C# / .NET and React. We want to see how you've tackled similar projects, especially in a greenfield environment. Don’t just list your skills; show us how you’ve used them!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Tell us why you're excited about this role and how your background makes you the perfect fit. We love seeing passion and a bit of personality, so don’t hold back!
Showcase Your Projects: If you've worked on any relevant projects, make sure to include them. Whether it's a personal project or something from a previous job, we want to see your work in action. Links to GitHub or live demos are a big plus!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to keep track of your application and ensures you’re considered for the role. Plus, it’s super easy—just a few clicks and you’re done!
How to prepare for a job interview at Lorien
✨Know Your Tech Stack Inside Out
Make sure you’re well-versed in C#, .NET, and React. Brush up on your knowledge of RESTful APIs and CI/CD pipelines, as these will be crucial for the role. Be ready to discuss specific projects where you've used these technologies.
✨Showcase Your Problem-Solving Skills
Prepare to talk about challenges you've faced in previous projects and how you overcame them. This is especially important in a greenfield environment where you'll need to think on your feet and take ownership of solutions.
✨Demonstrate Your Collaborative Spirit
Since this role involves mentoring junior engineers and contributing to architectural decisions, be prepared to discuss your experience working in teams. Share examples of how you've collaborated effectively and contributed to code reviews.
✨Ask Insightful Questions
At the end of the interview, don’t shy away from asking questions about the team dynamics, project timelines, or the technologies they use. This shows your genuine interest in the role and helps you gauge if it’s the right fit for you.