Creating value that doesn't exist yet with Idea × Technology.
We continue to challenge ourselves to create 0 to 1, unbound by common sense. Turning ideals into reality with innovative technology and creativity.
What We Do
System Development
Robust backend development based on Ruby on Rails. We promise maintainable and scalable code.
Feature
Why negabaro inc.
Agile Development
We build small working software quickly and grow the product together through feedback.
Tech & Proposal
We don't just implement; we propose solutions to maximize business value from a technical perspective.
Own Service Ops
We provide practical know-how gained from operating our own E-commerce business.
Works
Case Studies
Food Tech EC
Design and construction of a Food Tech EC site
Food Tech EC
Responsibilities
- Front-end technology selection research & report
- Backend development with Go
- Infrastructure design support
Medical Job Platform
Tech lead for a medical recruitment & career change platform
Medical Job Platform
Responsibilities
- Technology selection research & report
- DB performance tuning
- Audit implementation
- Code review
Pill Management App
Women's pill management app development
Pill Management App
Responsibilities
- Team management
- Front-end & back-end design support
- Incident response
- UX improvement measurement & reporting with Google Tag Manager
Baby Night Cry App
Infant night crying improvement app
Baby Night Cry App
Responsibilities
- Security & back-end design/implementation support
- Incident & inquiry response support
- Infrastructure maintenance & back-end development
- Partial mobile development (feature additions & improvements)
Sports Directory System
Directory management system for amateur sports industry
Sports Directory System
Responsibilities
- Requirements analysis & implementation
- Operation & maintenance
Frontend Modernization
Frontend modernization of a digital site
Frontend Modernization
Responsibilities
- Technology selection
- Team management
- Frontend modernization with Vue.js, Nuxt, TypeScript based on Atomic Design
- Unit test infrastructure with Jest
- Infrastructure as Code with Terraform
Pet Health Consultation
Pet health consultation system refactoring & infrastructure
Pet Health Consultation
Responsibilities
- Rails system refactoring (upgrade to Rails 5.2)
- Carrierwave to Shrine migration
- Feature development with React.js, Redux, Rails
- Infrastructure as Code with Terraform
- S3 security checks with Lambda & Terraform
- Migration from OpsWorks to ECS
Testing & Infra Platform
E2E testing, distributed storage, and programming education site infrastructure
Testing & Infra Platform
Responsibilities
- E2E test infrastructure design & build with WebDriver
- Deploy pipeline construction
- Ceph cluster construction & validation
- Storage performance benchmarking
- Production infrastructure design & build
- Base Docker images for each project
- Infrastructure as Code with Terraform
Movie Review Site Crawl Engine
Automated data collection platform for international TV dramas
Movie Review Site Crawl Engine
Responsibilities
- Crawl infrastructure construction with Scrapy & Docker
DevOps Infrastructure
New server construction with Docker & automated deploy system
DevOps Infrastructure
Responsibilities
- Design, construction, operation & schedule management
- Automated deploy system with CircleCI & ECS
- Partial infrastructure microservices migration
- Serverless batch processing with Lambda
- ChatOps-style monitoring notification infrastructure
Data Analytics & Search
Data analytics platform and search engine construction & operation
Data Analytics & Search
Responsibilities
- PV aggregation & analytics platform with DataPipeline & EMR
- Search engine construction & implementation
- Zero-downtime ES index deploy infrastructure
- API implementation, environment setup & search engine tuning
- Operation, maintenance & incident root cause analysis
Cloud Migration & DevOps
On-premise to AWS migration, monitoring & DevOps tooling
Cloud Migration & DevOps
Responsibilities
- On-premise to AWS migration schedule management
- IAM & VPC design
- Overall architecture design with CloudFormation
- Monitoring infrastructure (Mackerel, Bugsnag, Newrelic, CloudWatch)
- DevOps tool research & server construction (Jenkins, Redmine, Gitlab)
- Alfresco server HA construction
- Log visualization server (ElasticSearch, Kibana)
EC System & Operations
End-to-end EC system construction, optimization & monitoring
EC System & Operations
Responsibilities
- Order data path analysis & visualization with ELK
- Website rendering speed optimization (image compression, Apache tuning)
- Spam countermeasures & inventory search feature development
- Server build automation with Kickstart
- EC service monitoring (resource, health, log)
- Various server construction & operation (DNS, LDAP, mail, DB HA)
Tech Stack
# Core Technologies
Ruby on Rails
A framework for rapid web application development. Easy to scale and maintain.
AWS
The world's most widely used cloud infrastructure for scalable and reliable systems.
Docker
Container technology for consistent environments and smooth deployments.
Terraform
An Infrastructure as Code tool for building reproducible and version-controlled environments.
Hotwire
A Rails-native frontend technology that delivers SPA-like UX with simplicity.