Senior C# Developer - Equity Derivatives Technology Risk (VP) – London

06500 Citigroup Global Markets Limited; London; Hybrid; GBP 70,000 - 100,000; Full time

Job summary

A leading financial technology company in London is seeking a Senior C# Developer to enhance their Equity Derivatives Risk Management Platform. The role involves designing and implementing scalable solutions, collaborating with diverse teams, and mentoring junior developers. Ideal candidates will have strong C# and SQL skills, as well as experience in multi-threading and real-time systems.

Benefits

27 days annual leave (plus bank holidays)

A discretionary annual performance-related bonus

Private Medical Care & Life Insurance

Employee Assistance Program

Pension Plan

Special discounts for employees, family, and friends

Access to learning and development resources

Qualifications

• Proficient in C#, ideally with experience in C++.
• Experience with multi-threading and concurrency.
• In-depth knowledge of SQL and database design.

Responsibilities

• Develop high-performance solutions for the Equity Derivatives Risk platform.
• Collaborate with cross-functional teams and integrate new features.
• Conduct performance tuning and code reviews.

Skills

C#

C++

SQL

Multi-threading

Concurrency

Job description

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Senior C# Developer - Equity Derivatives Technology Risk (VP) – London, London

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Client:

06500 Citigroup Global Markets Limited

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

b9b17db746bd

Job Views:

2

Posted:

02.06.2025

Expiry Date:

17.07.2025

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Job Description:

Senior C# Developer - Equity Derivatives Technology Risk (VP) – London

Job Overview:

We are seeking an experienced and highly skilled Senior C# Developer to join our dynamic team. The ideal candidate will be responsible for designing, developing features across the Equity Derivatives Risk Management Platform.

This role demands a proactive individual who can work collaboratively in a fast-paced environment to deliver innovative solutions.

Key Responsibilities:

• Implement robust, high-performance, and scalable solutions for Citi’s Equity Derivatives Risk management platform using C# (C++ is a bonus)
• Collaborate with traders, quants, and analysts to gather requirements and ensure the software meets business needs
• Integrate new features and functionalities into existing risk infrastructure
• Optimize applications for maximum speed and scalability
• Conduct performance tuning and debugging to improve application performance and reliability
• Write clean, maintainable, and efficient code.
• Conduct code reviews and provide constructive feedback to team members.
• Ensure adherence to best practices and coding standards
• Work closely with cross-functional teams including traders, quants, and other developers.
• Mentor junior developers and share knowledge to enhance team capabilities
• Stay updated with the latest industry trends, technologies, and best practices.
• Proactively suggest improvements to existing systems and processes

Technical Skills:

• Proficient in C# and ideally C++ programming languages
• Experience with multi-threading, concurrency, and real-time systems
• Familiarity with financial data protocols and market data feeds
• In depth knowledge of SQL and database design/optimisation

Soft Skills:

• Excellent problem-solving and analytical skills
• Strong communication and interpersonal skills
• Ability to work effectively in a team-oriented environment

Nice to have experience:

• Commercial experience in software development with a focus on C++
• Understanding of trading systems and financial markets.
• Experience with derivatives risk management.

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

What we’ll provide you

By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:

• 27 days annual leave (plus bank holidays)
• A discretional annual performance related bonus
• Private Medical Care & Life Insurance
• Employee Assistance Program
• Pension Plan
• Special discounts for employees, family, and friends
• Access to an array of learning and development resources

Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive.

#LI-AP2

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Job Family Group:

Technology

Senior C# Developer - Equity Derivatives Technology Risk (VP) – London

Job Overview:

We are seeking an experienced and highly skilled Senior C# Developer to join our dynamic team. The ideal candidate will be responsible for designing, developing features across the Equity Derivatives Risk Management Platform.

This role demands a proactive individual who can work collaboratively in a fast-paced environment to deliver innovative solutions.

Key Responsibilities:

Implement robust, high-performance, and scalable solutions for Citi’s Equity Derivatives Risk management platform using C# (C++ is a bonus)

Collaborate with traders, quants, and analysts to gather requirements and ensure the software meets business needs

Integrate new features and functionalities into existing risk infrastructure

Optimize applications for maximum speed and scalability

Conduct performance tuning and debugging to improve application performance and reliability

Write clean, maintainable, and efficient code.

Conduct code reviews and provide constructive feedback to team members.

Ensure adherence to best practices and coding standards

Work closely with cross-functional teams including traders, quants, and other developers.

Mentor junior developers and share knowledge to enhance team capabilities

Stay updated with the latest industry trends, technologies, and best practices.

Proactively suggest improvements to existing systems and processes

Technical Skills:

Proficient in C# and ideally C++ programming languages

Experience with multi-threading, concurrency, and real-time systems

Familiarity with financial data protocols and market data feeds

In depth knowledge of SQL and database design/optimisation

Soft Skills:

Excellent problem-solving and analytical skills

Strong communication and interpersonal skills

Ability to work effectively in a team-oriented environment

Nice to have experience:

Commercial experience in software development with a focus on C++

Understanding of trading systems and financial markets.

Experience with derivatives risk management.

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

What we’ll provide you

By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:

27 days annual leave (plus bank holidays)

A discretional annual performance related bonus

Private Medical Care & Life Insurance

Employee Assistance Program

Pension Plan

Paid Parental Leave

Special discounts for employees, family, and friends

Access to an array of learning and development resources

Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive.

#LI-AP2

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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