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DATE ADDED: Sat 15/02/2020

C#/F# Developer

London, UK


JOB TYPE: Permanent

SALARY: -Highly Competitive

C#/F# Developer

A rather unique firm in London, who operates like a Prop trading house, though not trading Capital Market products, is looking for a senior C#/F# Developer.


  • practical experience in functional programming languages, ideally F#, and a desire to expand your knowledge in this area
  • ability and willingness to drive technical progress and innovation in modernising a core business area
  • desire to work across a range of technologies, including event sourced systems handling thousands of messages a second
  • you actively enjoy interacting with developers and business stakeholders alike, contributing to a truly two-way relationship with the business
  • excellent problem solving skills


  • highly adaptable and comfortable across both Front End and Back End tech stacks
  • a continuous self-learner, eager to learn and share knowledge of emerging technologies and practices
  • someone who knows what enterprise-grade software is and what matters to run and maintain software on scale with fast feedback cycles
  • a believer in testing as a first class citizen and not an after thought
  • an advocate of continuous value delivery with a pragmatic desire to automate and measure everything
  • approach with an agile mind set, continuously building end to end working software
  • awareness and care for the business goals and mission with the natural curiosity to understand the 'why'


  • Embedded with the business in a cross-functional delivery team
  • build high performance event sourced back-ends with C# and F# on .NET Core
  • build well designed and intuitive UIs with a React, TypeScript stack used by 100's of users
  • build telemetry in applications and build business and system dashboards with Elastic, Kibana
  • take ownership of epic delivery, intimately understanding the feature to be delivered and owning the front to back solution
  • work in a constantly evolving technical landscape, introducing appropriate new technologies and advance cloud adoption
  • removing/avoiding bureaucracy and barriers to delivery


  • proficiency with Server Side development with an appreciation of scalable, highly available architectures and event driven patterns
  • knowledge of different testing practices and the benefits of what to do and when to ensure an appropriate level of coverage to fail-fast
  • experience building cloud ready and cloud native systems
  • know importance of good agile practices and be a seasoned practitioner
  • be able to recognise when and be able to write performant software without over engineering
  • be articulate and empathetic in explaining design decisions and solutions


  • C#, F#, JS, TypeScript, ES6
  • EventStore, ActiveMQ, MySQL, REST, Rx, React, Redux
  • Jenkins, Octopus
  • Elastic, Kibana, Grafana
  • AWS, Azure

Role: C#/F# Developer
Job Type: Permanent
Location: London,

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