Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Enhance and maintain front-office systems used by traders and quants.
- Company: Leading global investment bank with a focus on innovation.
- Benefits: Competitive daily rate, 4 days in office, and hands-on experience.
- Why this job: Make a real impact on trading decisions and work with cutting-edge technology.
- Qualifications: 4-7 years in quantitative development and strong C# skills required.
- Other info: Dynamic role with exposure to cloud computing and strategic projects.
We are supporting a leading global investment bank in their search for a mid-level C# Developer (Contract) to join the EMEA Markets Engineering team. This is a hands-on role focused on maintaining and enhancing existing front-office systems used by traders and quants.
You will work on high-impact systems that directly influence trading and risk decisions, taking responsibility for development and ensuring their ongoing reliability.
The Role
- Maintaining and enhancing front-office pricing and risk systems built in C#
- Collaborating with quantitative analysts and traders to understand requirements and deliver effective solutions
- Troubleshooting and resolving production issues, ensuring smooth system operation
- Working with grid and cloud-based platforms to support compute-intensive tasks
- Supporting out-of-hours critical system coverage on a rota
This is a mid-level role you will be responsible for existing systems and their ongoing maintenance, rather than leading large greenfield projects.
Essential Experience:
- 4–7+ years of experience in quantitative development or technical roles supporting trading/risk systems
- Hands-on development experience with C#
- Understanding of derivatives, pricing, and risk concepts
- Exposure to front-office / trading environments in a financial institution
- Experience maintaining or supporting production systems (DevOps-lite, more dev than ops)
- Technical degree in Computer Science, Mathematics, Physics, Engineering, or equivalent experience
Beneficial Experience:
- Experience with Python, C++, or additional programming languages
- Exposure to cloud/grid computing platforms (e.g., AWS, Azure)
- Knowledge of AI/Data Science techniques applied to financial problems
- Full-stack development experience
- Awareness of regulatory or compliance considerations
This is a high-impact mid-level contract opportunity, offering:
- £600–£800 per day
- 4 days per week in the office
- Ownership of existing front-office systems, working closely with traders and quants
- Exposure to cloud/grid infrastructure and strategic projects
C# Developer in Slough employer: Bonhill Partners
Contact Detail:
Bonhill Partners Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land C# Developer in Slough
✨Tip Number 1
Network like a pro! Reach out to your connections in the finance and tech sectors. Attend meetups or webinars related to C# development and trading systems. You never know who might have the inside scoop on job openings!
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your C# projects, especially those related to trading or risk systems. This will give potential employers a taste of what you can bring to their team.
✨Tip Number 3
Prepare for technical interviews by brushing up on your C# knowledge and understanding of financial concepts. Practice coding challenges and be ready to discuss how you've tackled production issues in the past.
✨Tip Number 4
Don't forget to apply through our website! We’ve got some fantastic opportunities waiting for you, and applying directly can sometimes give you an edge over other candidates. Let's get you that C# Developer role!
We think you need these skills to ace C# Developer in Slough
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the C# Developer role. Highlight your experience with front-office systems and any relevant projects you've worked on. We want to see how your skills match what we're looking for!
Showcase Your Skills: In your application, don’t just list your skills—show us how you've used them! Talk about specific projects where you maintained or enhanced systems, especially in trading or risk environments. This will help us see your hands-on experience.
Be Clear and Concise: When writing your cover letter, keep it clear and to the point. We appreciate straightforward communication, so make sure to express why you're a great fit for the role without rambling on too much.
Apply Through Our Website: We encourage you to apply through our website for the best chance of getting noticed. It helps us keep track of applications and ensures you’re considered for this exciting opportunity with us!
How to prepare for a job interview at Bonhill Partners
✨Know Your C# Inside Out
Make sure you brush up on your C# skills before the interview. Be prepared to discuss your previous projects and how you've used C# to solve real-world problems, especially in trading or risk systems. They’ll want to see that you can not only code but also understand the nuances of the language.
✨Understand the Financial Context
Since this role is within an investment bank, it’s crucial to have a grasp of derivatives, pricing, and risk concepts. Familiarise yourself with how these elements impact trading decisions. Showing that you can speak their language will definitely set you apart from other candidates.
✨Showcase Your Problem-Solving Skills
Be ready to discuss specific instances where you’ve troubleshot production issues or enhanced existing systems. They’ll be looking for examples that demonstrate your ability to think critically and act swiftly under pressure, so prepare some solid anecdotes.
✨Collaborate Like a Pro
This role involves working closely with traders and quantitative analysts, so highlight any experience you have in collaborative environments. Discuss how you’ve effectively communicated technical concepts to non-technical stakeholders, as this will show your ability to bridge the gap between tech and finance.
