Frontend Engineer

  • Tokyo
  • Remote OK - Anywhere in Japan
  • Full-time
  • December 23, 2023
Apply from Japan Only
No relocation to Japan
(No visa sponsorship from overseas)
Language Requirements
Japanese: Conversational
English: Business Level

About the position

This is a permanent position. This position requires N3 or higher level of Japanese language skills. This position is open ONLY to people already in Japan.


We are looking for highly motivated software engineers who can solve problems together, think about big problems such as scalability and availability and ability to think outside-the-box and challenge the status quo. In addition to your technical expertise, we also value ownership, your willingness and motivation to learn new things and willingness to make risk-based decisions. We are looking for Server Side Engineer with the following competencies



As a Server Side development engineer for the "menu" app, you will be specifically involved in the following tasks.

  • App development for users, delivery staff, and stores

  • Front-end development tailored to various functions of the service

  • System design according to new functions of the service

  • Implementation of behaviour according to the action of the application

  • Development of cooperation function by external service and API -Development of a library to implement the required native functionality

  • Research and implementation to optimise app performance



What do you bring to the table aka Must-have requirements?

  • Ability to work in an international, but primarily fully immersed Japanese language environment is required. JLPT N3 or higher is preferred. You speak Japanese to converse effectively with internal and external parties

  • API development / operation experience using server-side framework

  • Design / development capability considering performance and scalability

  • Abundant knowledge about application development, network, database, cache

  • Application design ability considering maintainability and reusability

  • Communication ability to carry out service development in collaboration with engineers, PMs, designers, planners, and QA

  • Team development using github / Slack / task management system



Nice-to-have requirements

  • Experience developing server-side applications with PHP

  • Development / operation experience in public cloud using AWS / GCP

  • Experience in developing services using location information

  • Experience of transition from monolithic to microservices

  • Development experience of original recommendation function

  • Team development experience in Agile / Scrum

  • Experience of publishing and contributing OSS projects

  • Knowledge about service platform / development experience / operation experience

  • Experience as an engineer manager, project manager or team leader



Next Steps

We encourage people who do not satisfy all the listed requirements to also apply. We realise that finding a person that ticks all the boxes is sometimes difficult. So if you think you have the skills and experience to get the job done, please reach out to us. However, please note that Japanese language skills is a must.



About Reazon Holdings

At Reazon Holdings, we are on a mission to build a new natural and with a vision to be “the best company in the world”. By utilizing the strength of its completely unique capital, we have built various businesses such as "food delivery & takeout (menu, Inc.)", "Game development (Rudel, Decoo, & Ltd.)" & "Digital advertising, and sales & marketing consulting (Adrea, inc. & Reazista, inc.)". We aim to be an Internet company group that will continue expanding into new business areas. Our products and services such as Dragon Smash, Dragon Egg, menu food takeout & delivery products rank in the top of our respective competitive fields in Japan.


About Menu

“Menu” is involved in planning, development and operation of food delivery & takeout application "menu". On June 1, 2021, the menu group Co., Ltd. entered into a capital and business alliance with KDDI Corporation, including 5 billion yen from KDDI and financing contracts from multiple financial institutions. As a result, we have completed raising funds totaling over 10 billion yen. Aiming to be an "When you are hungry, Open menu app", we will continue to actively invest in business with the goal of becoming No. 1 food delivery in Japan.



Our Culture

As much as we love to collaborate in an office environment, we also trust our employees to collaborate and produce exceptional results through a strong digital remote working environment. We support this through our flexible work-life balance and merit-based bonuses in addition to competitive compensation. We encourage people to fail fast and learn fast. We believe in a calculated-risk based approach.


Reazon Holdings encourages diversity and is committed to an inclusive workplace. Reazon Holdings is an equal opportunity employer and does not discriminate based on gender, race, national origin, gender, sexual orientation, age, or other legally protected status.



About our Tech and teams

We use modern tools and technologies. Current stack in use are:

Languages: PHP / Slim3 / Python / Kotlin

Front end: ReactNative / React.js / Vue.js / Typescript / Redux + redux-saga / Swift / Kotlin

OSS: MySQL, MongoDB, Zabbix, haproxy, jenkins, Apache HTTP Server, Nginx

AWS: Managed: EC2, Aurora, Elasticache, Lambda, GameLift, Cloud Formation, Cloudwatch Server-side development: EC2

GCP: Managed: GCE, GKE, CloudSQL, Memorystore, BigQuery, Datastore, Cloud Run, Cloud Function, Traffic Director Server-side development: GCE, Docker

Database: CloudSQL / Datastore / ElasticSearch / Redis / BigQuery

Infrastructure: GCP / Various CDNs

Tools: Github / Slack / CircleCI / NewRelic / DataDog / PhpStorm / PyCharm / VS Code / JIRA / Confluence/NewRelic/, Twillio / Photon BOLT Pro / Slack /Zapier / github/ Tsung / JMeter

Reazon Holdings' vision is to be the best company in the world. To do that, they're developing four main businesses: Ad tech, Social gaming, Media and Food tech.

By leveraging synergies among their businesses, Reazon Holdings continues to create new, unique businesses that other companies can't replicate.



View Reazon Holdings's company page

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Frontend Engineer at Reazon Holdings
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