# Ruben de Haas

> Software Engineer

Location: Mountain View, California, United States
Profile: https://flows.cv/rubendehaas

Seasoned Software Engineer with over 10 years of work experience with a strong background in development of web services, APIs and automations written in Go, PHP, JavaScript and Python managed through Cloud services. Day-to-day experience with Agile project management methodologies and making improvements to development and project processes.

Specialities:
Frontend, Backend, Infrastructure, Cloud, Infrastructure as Code, Testing, CI/CD, DevOps, Agile, Scrum, Growth, Technical Direction, Service Design

## Work Experience
### Software Engineer @ 株式会社コンベックス
Jan 2018 – Present | Tokyo, Japan
Software Engineer as part of an international team, working on the company's main product called Digima, a SaaS CRM system.

Engaging in application design and development through intensive collaboration between engineers and project management with the use of Agile methodologies. Migrating monolithic architecture to microservices for continuous performance increases and scalability. Building customer aimed enticing and innovative features. 

Tech stack
- Languages: Go, PHP, JavaScript, TypeScript, Python, Android Kotlin
- Frameworks: Gin, Laravel, React
- API: gRPC, REST
- Database: MySQL, MongoDB, DynamoDB
- Infrastructure: Terraform
- CI/CD: Jenkins, Github Actions
- Message broker: RabbitMQ, SQS
- Cloud provider: AWS, Netlify

### Software Engineer @ Active Gaming Media
Jan 2016 – Jan 2018 | Osaka, Osaka, Japan
Worked as a software engineer as part of the engineering team which served to develop web applications for internal as well as external uses.

- Led the development of web applications for a government owned news outlet utilizing the Symphony 4 framework.
- Identified suboptimal use of Git and led the team to adopt Gitflow practices for documentation purposes, consistency and a reduction in conflicts. 
- Supported development of a game publishing platform by integrating search capabilities and a new payment system utilizing GMO.

Tech stack
- Languages: PHP, JavaScript, Python
- Frameworks: Symfony
- API: REST
- Database: MySQL
- Cloud provider: AWS

### Internship - Frontend Developer @ Night Zookeeper
Jan 2016 – Jan 2016 | Osaka, Japan
As part of my graduate internship I was tasked to built a new collaborative multiplayer experience for the English language learning tool called Night Zookeeper, which entices children to write through fun and interactive gamification elements and features.
The multiplayer feature would prompt users with a word, the user would then draw that item or thing. On completion all submissions would be combined on a single screen. One example result would be a face, where each body element would be drawn by an individual.

Tech stack
- Language: PHP, JavaScript
- Technologies: RatchetPHP Websockets, Canvas

### Co Founder @ Engency
Jan 2014 – Jan 2016 | Eindhoven, North Brabant, Netherlands
What started off as a school project, that in the end turned into a system that we as students were able to present to those that were interested. The experience that we, as students whilst running a company, had attained was invaluable. 
From building our product to contacting potential clients and presenting our hard work, gave us a view on what it takes to run a company.

### Junior Developer @ Blue Mango Interactive
Jan 2013 – Jan 2013
Built a responsive single page web application using knockout.js for internal knowledge sharing sessions. Capabilities included CRUD for content management and session scheduling.

### Internship - Junior Developer @ Blue Mango Interactive
Jan 2012 – Jan 2013
Served as a supporting role on the engineering to team by managing client landing pages. Refactoring as well as implementing new tools to automate processes to maintain these pages.

### Internship - Media- and webdevelopment @ Sense Interactive
Jan 2011 – Jan 2012
Designed, prototyped and built a corporate website using PhotoShop, JavaScript, HTML and CSS.


## Education
### Bachelor’s Degree in Informatica (Software engineering) / Hogere opleiding Software engineer
Avans University of Applied Sciences

### MBO4 in Application- and mediadevelopment (Mediadeveloper)
SintLucas

### High School in Theoretisch Gemengde Leerweg Technologie
Commanderij College


## Contact & Social
- LinkedIn: https://linkedin.com/in/dehaasruben

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Source: https://flows.cv/rubendehaas
JSON Resume: https://flows.cv/rubendehaas/resume.json
Last updated: 2026-04-01