26 to 50 of 119 Ruby on Rails Jobs

Ruby Developer

Hiring Organisation
Solirius Consulting
Location
London, United Kingdom
Salary
£ 80 K
expertise. As an equal opportunities employer, we are committed to encouraging equality, diversity, and social mobility, while creating opportunities for our teams to work on meaningful projects that deliver lasting impact.About You:You are a motivated and adaptable professional with a strong analytical mindset and a passion for using … approach, you’re comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role:We are looking for an experienced Ruby Backend Developer to build and maintain scalable, secure, and high-performance backend systems.RequirementsKey Responsibilities:You will part of a professional software engineering team helping ...

Ruby Developer

Location
Greater London, England, United Kingdom
expertise. As an equal opportunities employer, we are committed to encouraging equality, diversity, and social mobility, while creating opportunities for our teams to work on meaningful projects that deliver lasting impact. About You: You are a motivated and adaptable professional with a strong analytical mindset and a passion … approach, you’re comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are looking for an experienced Ruby Backend Developer to build and maintain scalable, secure, and high-performance backend systems. Key Responsibilities: You will part of a professional software engineering team ...

Ruby Developer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
expertise. As an equal opportunities employer, we are committed to encouraging equality, diversity, and social mobility, while creating opportunities for our teams to work on meaningful projects that deliver lasting impact. About You: You are a motivated and adaptable professional with a strong analytical mindset and a passion … consultative approach, youre comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are looking for an experienced Ruby Backend Developer to build and maintain scalable, secure, and high-performance backend systems. Requirements Key Responsibilities: You will part of a professional software engineering ...

Ruby Developer

Hiring Organisation
Morson Edge
Location
Manchester, North West, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£50 - 53 per hour
Contract Ruby Developer Up to £425 per day Outside IR35 6 Months Remote I'm currently looking for an experienced Ruby Developer to join a growing engineering team on an initial 6-month contract, with the potential for extension. This is a hands-on role where … youll be working on the development and enhancement of modern software applications, collaborating closely with a wider engineering and product team. What youll be doing Designing, developing and maintaining scalable applications using Ruby Building clean, maintainable and well-tested code Developing and integrating APIs and backend services Collaborating ...

Team Lead Ruby / Frontend Developer

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 120 K
Team Lead Ruby/Frontend DeveloperQuant Capital is urgently looking for a Lead Frontend Ruby or JavaScript Developer to join our high profile client.Our client is a brand new investment firm driven by technology. They are well known in the media as solving one of the common problems … people in almost 6 months. As their product is web based this position is key to growth and stability.The position is for a hands on Lead Developer to build new and maintain existing frontend applications and sites communicating with a Java API. The current team has 2 bleeding edge ...

Senior Software Security Engineer

Hiring Organisation
GitLab
Location
United Kingdom
Salary
£ 70 K
technology that transforms how the world develops software.*Fortune 500 is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune … roleYou will engineer security improvements to the GitLab product as well as building and maintaining the tools we use to detect and prevent abuse on our SaaS platforms. A strong software engineering background with experience in large Ruby/Rails codebases is required. As a senior engineer ...

Senior Ruby Backend Engineer - Remote, Spec-Driven

Location
United Kingdom
GitLab is seeking a Senior Backend Engineer (Ruby) for the Plan: Spec-Driven Development team. This is a full-time, remote role with work location: UK, focusing on Ruby on Rails, Python, GraphQL, PostgreSQL and related backend systems. You’ll own end-to-end backend ...

QA Engineer – Fintech, Selenium, Tester

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 70 K
working with the developers to understand their implementation of the requirements. Testing and quality is a team effort, but the QA should focus on keeping these standards high in the team.QA Engineer will be part of a development team working through new projects and maintenance tasks. They will have … specific focus on performance and load testing, being able to offer advice, strategy and direction to the test team on these issues. They will be hands on with these tasks and also overseeing this type of testing across the team.The QA Engineer will also be responsible ...

Fullstack Developer

Hiring Organisation
Randstad
Location
London, United Kingdom
Salary
£ 80 K
Title: Fullstack Software Engineer (Rust/Ruby/Python)Location: London, UK (Hybrid)Job Type: Full-timeWhat We're Looking ForExperience: 4+ years of professional software development experience in a fullstack or backend-heavy role.Polyglot Proficiency:Strong commercial experience with Ruby (preferably Ruby on Rails … embraces ambiguity. You care more about solving the problem effectively than being strictly tied to one programming language.Bonus PointsExperience migrating legacy applications (e.g., Ruby/Python to Rust).Contributions to open-source projects in Rust, Ruby, or Python.Familiarity with WebAssembly (Wasm).If you are interested then kindly submit ...

Fullstack Developer

Location
City Of London, England, United Kingdom
Title: Fullstack Software Engineer (Rust/Ruby/Python) Location: London, UK (Hybrid) Job Type: Full-time What We're Looking For Experience: 4+ years of professional software development experience in a fullstack or backend-heavy role. Polyglot Proficiency: Strong commercial experience with Ruby (preferably Ruby onRails) for web application development. Solid proficiency in Python (Django, FastAPI, or similar) with an understanding of data processing. Production experience or a strong foundational knowledge of Rust, particularly in building concurrent, memory-safe, and high-performance applications. Frontend Knowledge: Experience working with modern JavaScript/TypeScript frameworks (e.g. ...

Fullstack Developer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Permanent
Title: Fullstack Software Engineer (Rust/Ruby/Python) Location: London, UK (Hybrid) Job Type: Full-time What We're Looking For Experience: 4+ years of professional software development experience in a fullstack or backend-heavy role. Polyglot Proficiency: Strong commercial experience with Ruby (preferably Ruby onRails) for web application development. Solid proficiency in Python (Django, FastAPI, or similar) with an understanding of data processing. Production experience or a strong foundational knowledge of Rust , particularly in building concurrent, memory-safe, and high-performance applications. Frontend Knowledge: Experience working with modern JavaScript/TypeScript frameworks (e.g. ...

Technical Principal

Hiring Organisation
fortice
Location
London, United Kingdom
Salary
£ 120 K
PRINCIPALManchester/London, UKThoughtWorks is synonymous with innovation. We’re a diverse community of bright and passionate individuals striving to have a positive impact on the world. We’re dedicated to the art of software delivery, by keeping it lightweight, agile and open-source. Our clients are organisations with … complex enterprise systems to help them solve their toughest business problems. As a Principal Consultant at ThoughtWorks you have total responsibility for technical delivery on a client engagement so you are likely to have extensive experience.Here’s what you will bring:· Expertise in multiple technologies (including Java, .NET, Ruby ...

Software Engineer — Staff / Senior

Location
Greater London, England, United Kingdom
role You'll own the backend systems Letly runs on — and the architecture other engineers build on: the software behind every viewing, tenancy, certificate, rent payment and repair. These are systems where correctness, reliability and scale are non-negotiable : real people's money, homes and legal exposure … on the line. This is a senior-to-staff hire. At senior you own systems others build on — you make the architecture calls, set the patterns, and raise the bar around you. At staff you own the technical direction of a domain: you decide what gets built ...

Senior II Full-Stack Engineer (back-end heavy)

Location
Greater London, England, United Kingdom
building something that truly matters for millions of people, every day. MEET THE TEAM! Our team builds scalable, resilient products using Python/Django on the backend and React on the frontend, all with one goal in mind: creating a smooth, meaningful experience for our learners and tutors. … proudly tech-agnostic, great engineers come from all kinds of backgrounds. Whether you've worked with Java/Spring, Node.js, Ruby on Rails, Scala/Play, PHP, or Go, you'll feel right at home here. Python experience isn't required. We make decisions based on ...

NodeJS Developer – Fintech

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 80 K
2billion valuation by July 2022.Engineers are responsible for ensuring the correctness of their code and the output generated. Therefore there is a strong emphasis on automated testing and validation.Periodic retrospectives (whether a team is running Kanban or Scrum) are the heartbeat of continuous improvement.Review of designs/code … better than one.Day to Day The NodeJS Developer will:Develop, test and deploy internal and client facing responsive web applications.Prototype and build new components on top of Cloud infrastructures.Work closely with the platform engineering team to flesh out APIs and prototype quickly.Define and create test suites proving your application ...

NodeJS Developer - Fintech

Hiring Organisation
Appcast
Location
Whitehaven, Cumbria, UK
2billion valuation by July 2022.Engineers are responsible for ensuring the correctness of their code and the output generated. Therefore there is a strong emphasis on automated testing and validation.Periodic retrospectives (whether a team is running Kanban or Scrum) are the heartbeat of continuous improvement.Review of designs/code … better than one.Day to Day The NodeJS Developer will:Develop, test and deploy internal and client facing responsive web applications.Prototype and build new components on top of Cloud infrastructures.Work closely with the platform engineering team to flesh out APIs and prototype quickly.Define and create test suites proving your application ...

NodeJS Developer

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
2billion valuation by July 2022.Engineers are responsible for ensuring the correctness of their code and the output generated. Therefore there is a strong emphasis on automated testing and validation. Periodic retrospectives (whether a team is running Kanban or Scrum) are the heartbeat of continuous improvement. Review of designs/… one. Day to Day The NodeJS Developer will: Develop, test and deploy internal and client facing responsive web applications. Prototype and build new components on top of Cloud infrastructures. Work closely with the platform engineering team to flesh out APIs and prototype quickly. Define and create test suites proving ...

NodeJS Developer - Fintech

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
2billion valuation by July 2022.Engineers are responsible for ensuring the correctness of their code and the output generated. Therefore there is a strong emphasis on automated testing and validation. Periodic retrospectives (whether a team is running Kanban or Scrum) are the heartbeat of continuous improvement. Review of designs/… one. Day to Day The NodeJS Developer will: Develop, test and deploy internal and client facing responsive web applications. Prototype and build new components on top of Cloud infrastructures. Work closely with the platform engineering team to flesh out APIs and prototype quickly. Define and create test suites proving ...

Remote Java Developer – Fintech

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 70 K
this is a unique product.Engineers are responsible for ensuring the correctness of their code and the output generated. Therefore there is a strong emphasis on automated testing and validation.Periodic retrospectives (whether a team is running Kanban or Scrum) are the heartbeat of continuous improvement.Review of designs/code … money doing something you are passionate about.My client is based in Central London, Fully RemoteJava Engineer, Java Developer, React.JS Growth Javascript CSS HTML Frontend Ruby, Java, Ruby on Rails, CSS, HTML5, Linux REST, Javascript ...

Java Developer- Fintech

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 80 K
times and/or locations.Engineers are responsible for ensuring the correctness of their code and the output generated. Therefore there is a strong emphasis on automated testing and validation.Periodic retrospectives (whether a team is running Kanban or Scrum) are the heartbeat of continuous improvement.Review of designs/code … about.My client is based in Central London, this role is remote for the considerable future.Java Engineer, Java Developer, React.JS Growth Javascript CSS HTML Frontend Ruby, Java, Ruby on Rails, CSS, HTML5, Linux REST, Javascript ...

Java Developer- Fintech

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
/or locations. Engineers are responsible for ensuring the correctness of their code and the output generated. Therefore there is a strong emphasis on automated testing and validation. Periodic retrospectives (whether a team is running Kanban or Scrum) are the heartbeat of continuous improvement. Review of designs/code … based in Central London, this role is remote for the considerable future. Java Engineer, Java Developer, React. JS Growth Javascript CSS HTML Frontend Ruby, Java, Ruby on Rails, CSS, HTML5, Linux REST, Javascript ...

Senior Software Engineer – FinTech AI Forecasting (Rails)

Location
Greater London, England, United Kingdom
hybrid UK-based role. You’ll design and build backend services and APIs powering our AI-enhanced treasury platform, with a strong emphasis on PostgreSQL, Ruby on Rails, React, and AWS. You’ll work in a large, multi-tenant SaaS environment, creating scalable data models, writing … tests with RSpec, and contributing to on-call rotations as part of the YBIYRI #J-18808-Ljbffr ...

Junior Java Engineer Trading

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 70 K
this is a unique product.Engineers are responsible for ensuring the correctness of their code and the output generated. Therefore there is a strong emphasis on automated testing and validation.Periodic retrospectives (whether a team is running Kanban or Scrum) are the heartbeat of continuous improvement.Review of designs/code … hybrid 1 day a week in the office, potentially 4 per month in bulk.Java Engineer, Java Developer, React.JS Growth Javascript CSS HTML Frontend Ruby, Java, Ruby on Rails, CSS, HTML5, Linux REST, Javascript ...

Junior Java Engineer Trading

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
unique product. Engineers are responsible for ensuring the correctness of their code and the output generated. Therefore there is a strong emphasis on automated testing and validation. Periodic retrospectives (whether a team is running Kanban or Scrum) are the heartbeat of continuous improvement. Review of designs/code … week in the office, potentially 4 per month in bulk. Java Engineer, Java Developer, React. JS Growth Javascript CSS HTML Frontend Ruby, Java, Ruby on Rails, CSS, HTML5, Linux REST, Javascript ...

Android Developer – Fintech

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 60 K
times and/or locations.Engineers are responsible for ensuring the correctness of their code and the output generated. Therefore there is a strong emphasis on automated testing and validation.Periodic retrospectives (whether a team is running Kanban or Scrum) are the heartbeat of continuous improvement.Review of designs/code … client is based in Central London, this role is remote for the considerable future.Android Engineer, Engineer, Java Developer, React.JS Growth Javascript CSS HTML Frontend Ruby, Java, Ruby on Rails, CSS, HTML5, Linux REST, Javascript ...