{
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  "job_city": "Chesterfield",
  "job_state": null,
  "job_title": "Senior Software Engineer (Ruby on Rails)",
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  "job_country": "GB",
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  "employer_name": "Addooco IT",
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  "job_posted_at": "28 days ago",
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  "job_description": "Addooco is a managed IT, cloud, and communications solutions provider specializing in enterprise-grade services for businesses of all sizes. Established in 2008, the company operates across the United Kingdom region and beyond, focusing on proactive management and in-house developed solutions delivered through their own datacenter infrastructure.\n\nOverview\n\nWe are seeking a highly skilled Senior Software Engineer specialising in Ruby on Rails to join our dynamic team. In this role, you will contribute to designing and developing innovative software solutions that support our clients’ needs and align with our mission to deliver top-tier IT services.\n\nQualifications\n• Required skills & experience\n• 5+ years professional software engineering experience\n• 3+ years Ruby on Rails experience (Rails 7-8 preferred)\n• Geospatial data experience (PostGIS, RGeo, or similar geospatial libraries)\n• Multi-tenancy architecture and database sharding\n• Background job processing (Sidekiq, Resque, or similar)\n• RESTful API design and development\n• Payment gateway integration (Stripe, Adyen, or similar)\n• Git version control and GitHub workflows\n• Automated testing experience (Minitest, RSpec, or similar)\n• Experience with WebSockets and real-time features (ActionCable or similar)\n• Highly desirable\n• Laravel/PHP experience (for cross-team support)\n• Cloud services such as S3, SES, EC2, RDS etc.\n• Twilio or other SMS/communication APIs\n• Experience taking over codebases from external teams\n• Previous experience in transport/logistics/dispatch systems\n\nResponsibilities\n\nTechnical leadership:\n• Act as a product expert for ongoing team projects\n• Provide technical guidance and mentoring to mid-level engineers\n• Review code and provide constructive feedback\n• Make architectural decisions for the Ruby backend\n• Establish coding standards and best practices for the team\n\nDevelopment:\n• Take ownership of an existing system from an external vendor during a handover period\n• Develop new features for the system\n• Maintain and improve existing functionality\n• Optimise geospatial algorithms and database queries\n• Integrate third-party APIs (payment providers, SMS, etc.)\n• Write comprehensive automated tests (unit, feature)\n\nOperations:\n• Participate in 24/7 on-call rotation for system downtime events\n• Investigate and resolve production issues\n• Monitor system performance and implement improvements\n• Collaborate with DevOps on deployment and infrastructure\n• Work directly with stakeholders to understand requirements\n• Coordinate with frontend team on API contracts\n• Provide input to project planning and estimation\n• Support other teams when cross-functional needs arise\n\nKnowledge transfer:\n• Build comprehensive understanding of existing system during handover\n• Document complex systems and architectural decisions\n• Share knowledge with mid-level team members\n• Prepare the team to mentor junior engineers in the future\n\nKey success metrics\n• Successfully complete handover and take full ownership of existing system from external vendor within 3 months\n• Deliver new features while maintaining code quality (test coverage >90%)\n• Build effective team processes and establish technical standards\n• Develop mid-level engineers' capabilities through mentoring\n\n#J-18808-Ljbffr",
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  "employer_website": "https://www.addooco.it",
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  "job_employment_type": "Full–time",
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  "job_posted_at_timestamp": 1771632000,
  "job_posted_at_datetime_utc": "2026-02-21T00:00:00.000Z"
}