C# Senior Developer

Overview

As a C# Senior Developer, you will join a high-profile fintech that delivers real-time market data and analytical tools. You’ll help architect and build new, greenfield products within a fast-paced, tech-driven environment. You will collaborate with a cross-functional team to scale the platform and drive impactful analytics capabilities for investment banks and funds. This role offers rapid growth into leadership and a culture that values deep technical thinking and quality. You’ll work on cutting-edge tech at scale in London.

Pay / Benefits

• Bonus training budget
• Pension
• Life/Health insurance
• Flex working

Responsibilities

• Help introduce a new architecture for the real-time market data platform
• Create new products and features for market data and pricing analytics
• Collaborate with cross-functional teams to deliver high-quality software
• Contribute to test-driven development and DevOps workflows
• Participate in rapid problem solving and decision making in a fast-changing fintech environment

Key requirements

• Degree in Computer Science or related field
• Strong experience with C# and .NET Framework (4.5.2+), Visual Studio 2013+
• Proven OO, SOA, and design patterns (IoC) understanding
• Demonstrable TDD and modern Agile practices
• Experience with DevOps tools: Git, TeamCity, and Chef
• Messaging/transaction systems experience (NServiceBus, WebSphere MQ, MSMQ, RabbitMQ)
• Web tech experience: HTML, CSS, JavaScript, jQuery; frameworks like Angular or Knockout
• XML/JSON with XSLT; SQL Server (T-SQL, 2012+)
• Knowledge of Docker and related containerization
• Experience with ASP.NET, WPF, WCF; Agile, concurrency handling
• Exposure to financial tech domain and real-time data platforms (preferred)

• Problem solving mind-set
• Comfort in a fast-changing, creative environment
• Strong collaboration and communication with cross-functional teams
• C# / .NET (4.5.2+)
• ASP.NET / WCF / WPF
• Angular or Knockout.js

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