Hackajob Ltd

Hackajob Ltd

Charing Cross, London

Ruby Developer

Full-Time£61,000 - 101,000 per yearayerUnited Kingdom
IT

Job Description

Salary: £61,000 - 101,000 per year

Requirements:
  • Strong commercial experience with Ruby and Ruby on Rails.
  • Professional experience with other backend technologies, such as Node.js, Python, Java, or .NET.
  • Strong experience with PostgreSQL/MySQL and database optimisation.
  • Experience with REST APIs, microservices, and distributed systems.
  • Experience with Redis, Kafka, RabbitMQ, or similar backend technologies.
  • Experience with Docker, CI/CD, and at least one cloud platform (AWS, Azure, or GCP).
  • Strong testing experience with RSpec, Minitest, or equivalent.
  • Good understanding of Git, software architecture, security, and performance optimisation.
Responsibilities:
  • Build and maintain scalable, secure, and high-performance backend systems.
  • Help build and regularly ship software as part of a professional software engineering team.
  • Develop and maintain backend applications using Ruby and Ruby on Rails.
  • Design and develop RESTful APIs and backend services.
  • Work with databases, background jobs, caching, and third-party integrations.
  • Write clean, testable, and maintainable code.
  • Troubleshoot performance and production issues.
  • Collaborate with frontend, QA, DevOps, and product teams.
  • Participate in system design and code reviews.
Technologies:
  • AI
  • AWS
  • Azure
  • Backend
  • CI/CD
  • Cloud
  • DevOps
  • Docker
  • Frontend
  • GCP
  • Git
  • Java
  • Kafka
  • MySQL
  • PostgreSQL
  • Python
  • REST
  • RSpec
  • RabbitMQ
  • Rails
  • Redis
  • Ruby
  • Security
  • microservices
  • ASP.NET
  • NodeJS
  • Support

More:

We are Solirius Reply, part of the Reply Group, and we are a technology consultancy and digital transformation partner helping organisations solve complex challenges through strategy, design, engineering, and delivery. We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. Our consultants embed into client teams to create tailored solutions with measurable outcomes across public and private sectors. Our services span the full digital delivery lifecycle, including architecture, engineering, delivery management, user-centred design, business analysis, data, DevOps, and AI. We offer a collaborative and inclusive environment with benefits including competitive salary, bonus scheme, private healthcare insurance, 25 days annual leave plus bank holidays, up to 10 days allocated for development training per year, enhanced parental leave, paid fertility leave, pension, EAP with Help@Hand, gym membership benefits, cycle to work and electric vehicle schemes, flexible working, and annual away days/company socials. We are committed to equality, diversity, social mobility, and creating an accessible recruitment process.

last updated 39 week of 2026

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About Hackajob Ltd

Hackajob Ltd

Hackajob Ltd

Charing Cross

IT

Skills & Technologies

PythonJavaGoRubyScalaNode.jsASP.NETRailsAWSAzureGCPDocker

Inferred from job description

Salary Insight

£81,000

This role

£55,000

UK median

This salary is 47% above the UK median for Developers (£55,000/yr).

Based on 2024–2025 UK technology sector benchmarks

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