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Ruby Developer – Full Stack, Rails Javascript, TDD

Job in London, Greater London, W1B, England, UK
Listing for: Quant Capital
Full Time position
Listed on 2026-09-03
Job specializations:
  • Software Development
    Ruby on Rails, Full Stack Developer, Software Engineer, Backend Developer
Job Description & How to Apply Below
Ruby Developer – Full Stack, Rails Java script, TDD Quant Capital is urgently looking for a Ruby Developer to join our high profile client.

Our client is in this year’s fintech
50 they are a disruptive force in the global investment and payments space.

The office is casual with a compete tech focus (quiet coding area, loud games room).The position is for a senior Ruby Developer to build a new Rails application communicating with a Java API. The current team has 5 bleeding edge ruby and frontend developers who need some help to keep them from evangelising the world off. The Ruby Developer will be working within an Agile (ish looking to be better) team to design and deliver high quality bleeding edge applications.

The Ruby Developer will also be responsible for:

Designing and developing new applications working in collaboration with existing team members

Play a major part in architecting the platform

Some technology strategy

To design and help implement a REST apiHelp build a brand new web platform in Ruby Some Code reviews

The stack is Ruby on Linux AWS with some Angular.

JS and Node.

JS in parts.

Ruby Developers must have:

Educated to degree level or equivalent5 years commercial development experience ideally purely in Ruby Experience designing and building Rails applications

Ruby Java script Working  knowledge of Linux Understanding of Applications on AWS Experience with mobile applications would be beneficial

Currently Hadoop is used but not required

The environment is that of Facebook or Google, relaxed open with time to think and make the right decisions. The atmosphere is calm and relaxed with an open dress code. This is a role for techies, those who are motivated by the sharp end of technology and the possibility of making serious money doing something you are passionate about.

My client is based in Central London Ruby, Java, Ruby on Rails, CSS, HTML5, Linux REST, Java script Lead Ruby Developer
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