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.
Summary
We 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.
Required skills & experience
- 2-5 years professional software engineering experience
- 2+ years Ruby on Rails experience
- PostgreSQL or similar relational database experience
- Understanding of MVC architecture
- Experience writing automated tests
- Ability to work independently and as part of a team
Highly desirable
- Background job processing (Sidekiq)
- Payment gateway integration experience
- Multi-tenancy or multi-database architecture
- Cloud services such as S3, SES, EC2, RDS etc.
- Laravel/PHP experience (for cross-team support)
- Experience with real-time features (WebSockets, ActionCable)
Responsibilities
Development
- Develop new features for existing system under guidance of Senior Software Engineer
- Maintain and improve existing functionality
- Write clean, well-tested code following team standards
- Participate in code reviews
- Fix bugs and resolve technical issues
- Implement API endpoints and database migrations
Learning and growth
- Build deep understanding of existing codebase during handover
- Learn geospatial algorithms and PostGIS functionality
- Develop expertise in multi-tenancy architecture
- Grow technical skills through mentorship from Senior Software Engineer
- Work towards becoming Product Expert in specialised areas
Operations
- Participate in 24/7 on‑call rotation for system downtime events
- Respond to production issues during on‑call shifts
- Monitor system health and report anomalies
- Work with Senior Software Engineer on feature planning and estimation
- Coordinate with frontend team on API requirements
- Communicate progress and blockers effectively
- Support team members through knowledge sharing
Key Success Metrics
- Successfully learn existing codebase and contribute independently within 2-3 months
- Deliver features with minimal rework and high code quality
- Maintain test coverage standards (>90%)
- Effectively handle on‑call responsibilities
- Demonstrate growth in technical capabilities over time
Company Benefits
- Referral programme
- Free parking
- Additional leave
- Company pension
- Cycle to work scheme
- Work from home
- Company events
- On‑site parking
Seniority Level
Employment type
Job function
- Information Technology and Engineering
Industry
- IT Services and IT Consulting
Location: Harrow, England, United Kingdom
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