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For Companies At a Glance
- Tasks: Design and develop a high-impact web application from scratch using C# and React.
- Company: Join a leading global investment bank with a focus on innovation.
- Benefits: Competitive salary, flexible location, and opportunities for professional growth.
- Other info: Dynamic work environment with mentorship opportunities and career advancement.
- Why this job: Take ownership of a greenfield project and make a real impact in finance tech.
- Qualifications: Strong experience in C#/.NET and React development required.
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.
Location: London (Negotiable)
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
- 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#Backend/React.NET Front End) employer: Lorien
Contact Detail:
Lorien Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Full Stack Engineer (C#Backend/React.NET Front End)
✨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 insider info about job openings that aren't even advertised yet.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best projects, especially those involving C# 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 technical interviews by brushing up on your coding skills. Practice common algorithms and system design questions. We recommend using platforms like LeetCode or HackerRank to get in the zone.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, we love seeing candidates who take the initiative to connect directly with us.
We think you need these skills to ace Full Stack Engineer (C#Backend/React.NET Front End)
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Full Stack Engineer role. Highlight your experience with C#, .NET, and React, and don’t forget to mention any greenfield projects you've worked on. We want to see how you can hit the ground running!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about building high-impact web applications and how your skills align with our needs. Let us know what excites you about this opportunity in investment banking.
Showcase Your Projects: If you've got a portfolio or GitHub with projects that demonstrate your full-stack capabilities, share it! We love seeing real examples of your work, especially if they involve RESTful APIs or modern UIs. It gives us a taste of what you can bring to the table.
Apply Through Our Website: We encourage you to apply through our website for a smoother application process. It helps us keep track of your application and ensures you don’t miss out on any important updates. Plus, it’s super easy!
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 the latest features in ASP.NET Core and React 18+. Be ready to discuss how you've used these technologies in past projects, especially in building client-facing applications.
✨Showcase Your Problem-Solving Skills
Prepare to tackle some coding challenges or technical questions during the interview. Think about how you would approach designing a full-stack application from scratch. Highlight your experience with CI/CD pipelines and how you’ve managed deployments in previous roles.
✨Demonstrate Ownership and Initiative
Since this role requires a self-starter mindset, be prepared to share examples of how you’ve taken ownership of projects. Discuss any greenfield projects you’ve worked on and how you drove them from concept to production, showcasing your ability to work independently.
✨Ask Insightful Questions
Interviews are a two-way street! Prepare thoughtful questions about the team’s development practices, the architecture of the web application, and how they ensure performance and accessibility. This shows your genuine interest in the role and helps you assess if it’s the right fit for you.