Mid-level Web Application Engineer (PHP) - Tokyo

  • Tokyo
  • Partial Remote
  • Full-time
  • May 8, 2025
Conditions
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¥6M ~ ¥9M /yr
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Apply from Japan Only
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No relocation to Japan
(No visa sponsorship from overseas)
Requirements
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Language Requirements
Japanese: Conversational
English: Business Level
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Minimum Experience
Mid-level or above

Job Overview

You will be involved in the development and operation of our proprietary product, which has a long track record and is used by numerous customers. Your mission will be to maintain the system's stable operation while continuously improving it to make the service more user-friendly for a wider audience. This position involves enhancing the quality of the current product and addressing technical challenges.

You will work on challenges specific to communication domains, such as handling large-scale data (e.g., chat log data exceeding 100 million records) and designing and operating systems capable of withstanding loads from tens of thousands to millions of users accessing and distributing data.

Our company has established a global development framework, and collaboration with engineers at our Japan, India, and Philippines offices is currently accelerating.

As a result, there is a growing need for a bilingual (Japanese and English) Engineer who can lead product development effectively.

 

Key Attractions of the Role

Direct Contribution to the Customer Base

Our product has a long history and is trusted by numerous customers, providing a unique opportunity to receive direct feedback through daily operations. You will experience the fulfillment of maintaining customer trust and contributing to improving service quality.

Developing Problem-Solving Skills

You will face technically demanding challenges related to product performance, giving you the chance to refine your ability to identify optimal solutions. This environment allows you to further enhance your problem-solving skills while improving the overall performance and scalability of the product.

Autonomy and Proactive Engagement

Engineers in this role enjoy a high degree of autonomy, with the freedom to propose and implement technical approaches and improvements. You will have the opportunity to design and execute optimal solutions based on customer needs and product requirements, enabling you to grow your technical expertise and build a strong portfolio of accomplishments.

 

The Appeal of Micoworks

Micoworks has set an ambitious goal: to become No. 1 in Asia by 2030, with a clear vision for global expansion. Achieving this goal requires tackling numerous challenges and overcoming obstacles.

We provide an environment where you can fully leverage your skills and experience. At Micoworks, everyone is encouraged to take ownership and lead, making our culture of individual initiative and empowerment one of our greatest strengths.

 

Our Service
Overview of "MicoCloud"

  • MicoCloud offers a platform that supports B2C businesses by managing customer information and facilitating communication via a messaging platform.
  • By collecting and analyzing customer data as 1st-party data, the platform enables personalized communication and information delivery, fostering customer loyalty and driving revenue growth for businesses.
  • Currently, MicoCloud not only supports customer acquisition and engagement as a marketing tool but also enhances one-on-one communication quality post-acquisition, contributing to the maximization of LTV (Lifetime Value).
  • The platform extends beyond messaging to embrace a multi-channel strategy. With "Vision2030," we aim to become "Asia’s No.1 Brand Empowerment Company," driving business development with a focus on the global market.

 

Challenges We Address

Leadership in the Conversational Commerce Market
In the rapidly growing conversational commerce (C-commerce) market, especially in Asia, MicoCloud is striving to become the leading solution.
Effective results in C-commerce require more than scattershot strategies. By unifying, analyzing, and improving communication between businesses and consumers, MicoCloud enables businesses to optimize their online marketing efforts on an individualized level.
Streamlining Marketing Operations
Many marketing professionals struggle to dedicate time to strategic tasks due to the burden of daily operations.
By improving operational efficiency through MicoCloud, we aim to create a world where businesses can focus on creative work while providing consumers with more enjoyable and seamless purchasing experiences.

 

The Appeal of Working at Micoworks

  • A "Growing Market × Growing Company"
    The C-commerce market boasts a global scale of nearly 30 trillion yen, with projections suggesting it will surpass the e-commerce market in some countries by 2025.
    Achieved 500% business growth in just two years in the marketing SaaS domain.
    Secured a total of 6.3 billion yen in funding (Series B: 3.5 billion yen).
    Established the No.1 position in LINE marketing within Japan.

  • A Customer-Centric Approach
    Our mission is to expand possibilities for all businesses and create a future where brands and consumers lead richer lives.
    The culture of "WOW THE CUSTOMER" reflects our commitment to addressing customers’ true challenges and delivering results that exceed expectations.

  • The People You Work With
    Our leadership and team embody an "OPEN MIND" approach, fostering open and inclusive communication across all levels.
    Driven by a strong "ALL FOR ONE" spirit, team members work closely together, both internally and externally, with a "Giver Mindset" at the core of our collaboration.
    Surrounded by highly motivated colleagues, you’ll find daily inspiration and opportunities for personal and professional growth.

 

About the Tools, Languages, and Environment

The technical stack varies slightly depending on the product you work on:

  • Web Backend: PHP, Laravel
  • Web Frontend: Vue.js, Laravel (Blade)
  • Database: Aurora MySQL, ElastiCache for Redis
  • Infrastructure: AWS, Terraform, CDK, Ansible
  • Middleware: Nginx, Supervisor
  • Monitoring: NewRelic, AWS (CloudWatch)
  • Data Analysis: BigQuery, Google Data Studio, Metabase, Trocco, Snowflake
  • Development Environment: Docker
  • CI: GitHub Actions
  • CDN: CloudFront
  • Source Code Management: GitHub
  • Communication Tools: Google Meet, Slack, Notion, Redmine
  • AI Development Support: GitHub Copilot, CodeRabbit, ChatGPT, Claude

 

Required Skills

  • Web Application Backend Development Experience: Minimum of 5 years (experience with AdTech or SaaS products considered for less than 5 years).
  • PHP Development Experience: Minimum of 3 years.
  • Software Development Lifecycle Experience: From specification planning to release.

 

Preferred Skills

  • Experience in web/mobile application product management.
  • Work experience at a startup.
  • Development experience using LINE API.
  • Participation in improving Scrum events.
  • Knowledge of large-scale data transmission and reception.
  • Experience operating high-transaction systems.
  • Agile development experience.
  • Experience with CI/CD.
  • Re-architecting existing architecture to address challenges.
  • Development experience with event-driven architecture.
  • Bug investigation and fixing experience.
  • Performance tuning experience.
  • Experience with pair programming or mob programming.
  • Mutual code review experience.

 

Ideal Candidate Profile

  • Can continuously work on tasks with persistence.
  • Possesses a problem-solving mindset to overcome challenges independently.
  • Displays honesty and a strong sense of responsibility.
  • Can hypothesize and test solutions to discover the optimal path quickly with limited information.
  • Capable of structuring and clearly articulating or outputting ideas.
  • Interested in new technologies and actively learns independently.
  • Challenges conventional norms and verifies assumptions through personal experience.
  • Communicates openly and fosters trust.
  • Maintains a positive attitude, motivating others through optimistic thoughts and words.
  • Proactively involves others to achieve goals and drives project success.

 

Work Location    

  • Your preferred work location will be discussed.
  • Flexible work styles are available depending on job responsibilities (remote/on-site).

 

Average On-Site Frequency 

  • About 4 days per month.

 

Osaka Office

  • WeWork Midosuji Frontier 1-13-22 Sonezakishinchi, Kita-ku, Osaka-shi, Osaka Prefecture

 

Tokyo Office

  • (From January 2024) WeWork The ARGYLE Aoyama 6F 2-14-4 Kita-Aoyama, Minato-ku, Tokyo

 

Work system   

Work Hours

  • Standard Schedule: 9:00 AM – 6:00 PM (includes a 1-hour break; overtime applicable).
    Flexible Time: Core hours from 10:00 AM to 4:00 PM.
  • Certain grades may fall under a discretionary labor system, per company regulations.

 

Holidays and Leave

  • Weekends (Saturday & Sunday), national holidays
  • Year-end and New Year holidays
  • Summer vacation
  • Bereavement leave
  • Paid leave (10 days granted upon joining, with additional days based on tenure)
  • Other company-designated holidays

 

Probationary Period    

  • Generally 3 months (no changes in compensation or benefits during this period).

 

Benefits    

  • Commuting allowance (including bicycle commuting)
  • Company laptop provided
  • Company phone provided (*role-specific)
  • Flexible start-time policy (every two months upon request)
  • Social insurance (health, pension, employment, workers' compensation)
  • Life and health support leave
  • Health checkup expenses covered
  • Parental and childcare support programs
  • Club activity support

Micoworks’ goal is to help companies build their brand through the power of conversation.

They are developing multiple products to analyze and improve communication between businesses and consumers, enabling businesses to optimize their online marketing efforts.

The conversational commerce (C-commerce) is a rapidly growing market, projected to surpass the e-commerce market in some countries by 2025.

Micoworks has already achieved 500% business growth in just two years, placing them at No.1 in LINE marketing within Japan. They’ve also secured a total of 6.3 billion yen in funding (with the recent Series B raising 3.5 billion yen).

Micoworks has set an ambitious goal to become Asia’s No.1 Brand Empowerment Company by 2030, with a clear vision for global expansion. Achieving this goal will require tackling numerous obstacles, and they’re looking for team members who are up to the challenge.

Here are the services you’ll be working on:

MicoCloud

A marketing platform that optimizes communication between companies and their customers.

Currently, the system has been introduced to more than 1,000 brands and is contributing to the business growth of BtoC companies in industries including human resources, finance, real estate, car dealership, and more.

 

Micomii

A marketing tool for business owners to increase recurring customers using LINE official accounts.

The tool can be set up on a smartphone, and businesses can automate coupon and messaging functions depending on the customer’s specialized information.

The service is focused on solving problems faced by small business owners who want to effectively use the LINE official account features, replace stamp cards with digital ones, and more.

 

MicoVoice

An AI call service that specializes in outbound phone calls.

Many companies who need to call their customers find that many people tend to not answer the phone. This creates a gap between required labor costs and productivity.

Micowork’s team of engineers has over 20 years of experience in the conversational AI domain. This service helps companies focus on the customer experience and improve customer satisfaction.

 

BizClo

BizClo is a joint product with LINE Yahoo!

It's a business chat service that uses official LINE accounts to allow companies to communicate with their customers for sales and customer support.

It provides a solution for B2C businesses that handle high unit price products, to establish a third point of contact with end-user customers on a one-to-one basis. This way, businesses can increase methods of communication via LINE, in addition to e-mail and telephone calls.

 

Team Culture

Micoworks leadership and team embody an "OPEN MIND" approach, fostering open and inclusive communication across all levels.

Driven by a strong "ALL FOR ONE" spirit, team members work closely together, both internally and externally, with a "Giver Mindset" at the core of their collaboration.

Surrounded by highly motivated colleagues, you’ll find daily inspiration and opportunities for personal and professional growth.

View Micoworks's company page

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Mid-level Web Application Engineer (PHP) - Tokyo at Micoworks
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