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Lorien

React Developer

Lorien
United Kingdom · Contract · Mid-Senior

6 month rolling contract - Inside IR35 - Investment Banking


Key Responsibilities


· Participate in an agile based software development life-cycle including technical analysis, documentation, development, testing and code reviews.

· Collaborate with the production support team for release and maintenance of the components.

· Work closely with the other developers in determining and following best development and architecture practice.

· Propose and provide feedback from experience/knowledge on architecture, design, technology choices and technology direction of the platform.

· Train and mentor less experienced participants through instruction, pair programming and code review.

· Fully participate in requirement and design meetings for new functionality.

· Develop reference implementations and documentation for platform features

· Moderate and review development contributions from the development community


Skills and Experience


· Software development experience in an enterprise environment

· Good development skills and experience with ReactJs

· Good development skills and experience with Javascript

· Good development skills and experience with Typescipt , CSS.

· Good development skills and experience with the common javascript libraries and other web technologies

· Experience with reactive extensions.

· Experience with real time trading systems.

· Knowledge of programming best practices, design patterns etc.

· Strong interest in continuous improvement and all aspects of software development and delivery

· Good understanding of test driven development and continuous integration practices

· Good understanding of relational databases with appropriate SQL knowledge

· Strong communication skills, both orally and in writing, inside and outside the team.

· Desire to learn quickly and ability to adapt to a fast changing environment.

· Strong problem solving skills.

· Comfortable dealing with numbers.

· Solid academic background in engineering, sciences or economics.


Desirable Requirements


· Good development experience with C# and the Microsoft.NET stack.

· Front office development experience in any of: Interest Rates Products, Repos, FX.

· Financial product knowledge in Interest Rates products, FX, FX Options

· Experience developing large real-time financial trading applications.

· Experience with real time messaging protocols.

· Agile practitioner using Scrum.

· An ability to design performant software and an understanding of application performance profiling

Key Skills

Ranked by relevance

continuous integration design patterns javascript sql c
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Posted
Jan 08, 2026
Type
Contract
Level
Mid-Senior
Location
London Area
Company
Lorien

Industries

Staffing Recruiting

Categories

Engineering Information Technology

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