Senior C# / .NET Developer | Risk & Securities Lending in London

Senior C# / .NET Developer | Risk & Securities Lending in London

London Temporary 60000 - 80000 £ / year (est.) Home office (partial)
Randstad Technologies Recruitment

At a Glance

  • Tasks: Design and build high-performance C#/.NET applications for Risk Management and Securities Lending.
  • Company: Join a leading financial services technology team in London.
  • Benefits: Hybrid work model, competitive pay, and opportunities for professional growth.
  • Other info: Collaborate with experts and enhance your skills in a dynamic setting.
  • Why this job: Make an impact in finance by developing critical systems in a fast-paced environment.
  • Qualifications: 10+ years of C#/.NET experience and strong financial services knowledge required.

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

Location: London (Hybrid)

Contract Duration: 6 Months

Industry: Financial Services

About the Opportunity

Are you a seasoned C# engineer with a deep understanding of financial markets? We are seeking an experienced Senior C# / .NET Developer to join a high-performing technology team supporting critical Risk Management and Securities Lending platforms. In this 6-month hybrid contract, you will play a pivotal role in designing, building, and supporting high-performance systems used for complex risk calculations and trading/financing workflows. Working closely with quants, risk managers, and the Front Office, you will deliver scalable, robust solutions in a fast-paced, regulated environment.

What You Will Do

  • System Development: Design, build, and maintain high-performance C# / .NET applications supporting Risk and Securities Lending workflows.
  • API Integration: Build and consume RESTful APIs to seamlessly connect complex upstream and downstream financial systems.
  • Data & Throughput: Handle large datasets and high-throughput systems, contributing to vital exposure calculations, limits, and reporting.
  • Best Practices: Write scalable, testable, and maintainable object-oriented code, participating in architectural discussions and code reviews.
  • Cross-Functional Collaboration: Partner with Risk, Front Office, Operations, Compliance, and Product Owners to translate business needs into technical reality.
  • Production Support: Assist with incident analysis, remediation, and the ongoing support of live systems.

What We Are Looking For

  • Core Technical Expertise: Deep, hands-on experience with C# and .NET (including .NET Core). Exceptional Object-Oriented Programming (OOP) skills and architectural design principles. Proven track record in designing and implementing REST/JSON APIs. Solid SQL database experience (e.g., SQL Server). Strong grasp of application performance, scalability, unit/integration testing, and CI/CD pipelines.
  • Essential Domain Knowledge: A proven background working within Financial Services technology. Strong domain knowledge in at least one of the following: Risk Management, Securities Lending, Prime Brokerage, or Collateral/Margin/Financing platforms.
  • Highly Beneficial / Nice-to-Have: Exposure to risk and regulatory methodologies (RWA, CCAR, Basel III / IV). Understanding of credit risk, counterparty exposure, or capital calculations. 10+ years of commercial software engineering experience. Experience with Cloud platforms (Azure/AWS) and messaging technologies (e.g., Kafka). Familiarity with front-to-back trading systems and Agile/Scrum delivery.

About You

You possess a strong analytical and problem-solving mindset. You are highly comfortable navigating complex, highly regulated enterprise environments. You can communicate complex technical concepts clearly to non-technical stakeholders. You are proactive, detail-oriented, and hyper-focused on reliable delivery.

How to Apply

If you have the technical depth and the financial domain expertise to hit the ground running, we want to hear from you. Apply now at Prasanna . merugu @ randstaddigital . com with your updated CV to be considered for this immediate contract opportunity. Randstad Technologies is acting as an Employment Business in relation to this vacancy.

Senior C# / .NET Developer | Risk & Securities Lending in London employer: Randstad Technologies Recruitment

Randstad Technologies is an exceptional employer that fosters a dynamic work culture in the heart of London, offering employees the chance to thrive in a fast-paced environment. With a strong focus on professional development, we provide ample opportunities for growth and advancement within the IT sector, alongside competitive benefits that enhance work-life balance. Join us to be part of a supportive team that values innovation and collaboration, making every day at work both meaningful and rewarding.

Randstad Technologies Recruitment

Contact Details:

Randstad Technologies Recruitment Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior C# / .NET Developer | Risk & Securities Lending in London

Get Involved in Open-Source Projects

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Attend Local Tech Meetups

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We think you need these skills to ace Senior C# / .NET Developer | Risk & Securities Lending in London

C#
.NET
.NET Core
Object-Oriented Programming (OOP)
RESTful APIs
SQL
Application Performance

Some tips for your application 🫡

Show Off Your Tech Skills:Make sure your CV highlights your tech stack and any programming languages you’re proficient in. Include specifics about any frameworks or technologies you’ve worked with; they can make you stand out in the sea of applicants. It’s all about showing that you have the chops we need at Randstad Technologies Recruitment!

Portfolio 2.0:Since you’re applying for a temporary gig, it’s super important to showcase a portfolio that highlights your best projects. Include links to GitHub or any personal projects that demonstrate what you can do in a real-world environment. This gives us a taste of your style and your problem-solving approach!

Keep It Brief and Relevant:With a temporary position, we want to see your ability to hit the ground running. Be concise in your CV and cover letter; stick to experiences that directly relate to the role. Highlight any previous temporary roles or freelance gigs that show your adaptability and quick learning!

Tailor Your Cover Letter:Don’t just send a generic cover letter. Personalise it for Senior C# / .NET Developer | Risk & Securities Lending at Randstad Technologies Recruitment! Mention why this temporary role excites you and how you see yourself contributing in the short run. Show us what you've got and why you're the one for this quick turn-around!

How to prepare for a job interview at Randstad Technologies Recruitment

Nail the Technical Skills

For a software engineering role, you'll likely face technical questions or coding tasks during your interview. Brush up on the relevant programming languages and frameworks that Randstad Technologies Recruitment uses, and don’t forget to practice some coding challenges on platforms like LeetCode or HackerRank. Showing your coding prowess can really make you stand out!

Prepare for System Design Questions

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Demonstrate Your Adaptability

Since this is a temporary role, you'll want to emphasise your ability to hit the ground running. Highlight experiences where you quickly adapted to new technologies or teams. Let’s make it clear to the interviewers at Randstad Technologies Recruitment that you can learn on the job and deliver results in a short timeframe!

Show Off Your Portfolio

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