Yamazaki
Rajan Valencia
I build robust systems & digital experiences.
Software Developer. Currently building scalable architecture and high-performance applications. Specialize in cloud infrastructures, modern frameworks, and crafting multilingual platforms.
Experience
CyberZ AC Tech Division
January 2023 ~ PresentResponsible for system development in the advertising agency business at a company with the largest domestic share in smartphone advertising under the CyberAgent Group.
cyber-z.co.jpME-net Guidance Special Page
August 2023Developed a new system in collaboration with the Kanagawa Board of Education to provide the latest information and guidance reservations in multiple languages for students with foreign roots.
hsguide.me-net.or.jpME-net Altervoice
April 2023Newly developed a multilingual reservation system for event where students with foreign connections gather
altervoice.me-net.or.jpLINE WORKS Vision
December 2021 ~ December 2022Developed new UI/UX for LINE's cloud-based video recording service in the AI sector, which analyzes video in real-time to detect movements and sounds, and supports simultaneous multiple live screens.
line-works.comMultiYouth
October 2018 ~ October 2021Developed a new system to translate articles into multiple languages and easy Japanese.
JavaScript
TypeScript
Go
Java
PHP
Python
C / C++
HTML
CSS
Sass
htmx
Next.js
React
Node.js
Spring Boot
Laravel
App Runner
Batch
ECR
ECS
Elastic Beanstalk
Fargate
Lambda
S3
Comprehend
DMS
Rekognition
Cloud9
CodeBuild
CodePipeline
CodeStar
DynamoDB
RDS
SES
API Gateway
Athena
Client VPN
CloudFront
ELB
Route53
VPC
CloudFormation
CloudWatch
EventBridge
ACM
Amplify
IAM
Secrets Manager
WAF
Cloud Storage
AppScript
Maps API
Translate API
Tailwind CSS
Docker
Git
React Query
tRPC
Drizzle ORM
Zod
Storybook
D3.js
Stripe
Jira
Claude
Gemini
OpenAI
Swagger
OAuth 2.0
MySQL
Linux
Ubuntu
CentOS
Rocky Linux
macOS