従業員数235名設立年数9年評価額137.3億円累計調達額61.2億円〒530-0011 大阪府大阪市北区大深町6番38号 グラングリーン大阪 北館 JAM BASE 5階 JAM-OFFICE 5-A・5-B
株式会社MicoのTECH-ENG-28. Full Stack Lead（Core API Team）_TokyoDevの求人
求人概要
JOB DESCRIPTION
Mico provides Mico Engage AI, a high-traffic enterprise SaaS used daily by major companies, and we are currently hiring core members to join our team. In our fast-growing startup environment, you will have the opportunity to directly shape the product and elevate the user experience.
You will be expected to proactively tackle a wide range of challenges—including optimizing high-traffic systems, designing and developing new AI-powered features, and improving our real-time processing infrastructure. Working closely with our Lead Engineer, you will drive product-critical development while also contributing to technical decision-making and standardization.
By collaborating in a multicultural, bilingual team, you will sharpen your skills in a global development environment. This role offers far more than pure development—you will play a key part in the growth of both the team and the product, making it a highly rewarding position.
◼︎ Key Responsibilities
As a Full-Stack Engineer, you will play a central role within the Mico Engage AI development team. Your responsibilities include:
- Stabilizing the Mico Engage AI delivery infrastructure: Build and improve the infrastructure that enables stable, large-scale delivery even for clients with high user volumes.
- Developing new features: Implement product-enhancing features based on our product roadmap.
- Customer-driven development: Build high-impact, reusable features based on needs identified through Customer Success activities.
◼︎ What You Will Gain
- Experience building scalable systems and implementing AI technologies
- Collaboration skills in a global engineering team
- Hands-on experience driving product growth end-to-end
◼︎ Tech Stack
- Web Backend (Mico Engage AI): TypeScript (NestJS), Go, Elixir
- Web Frontend: TypeScript (Next.js), Chakra UI
- Databases: TiDB, Aurora MySQL, DynamoDB, MemoryDB for Redis
- Infrastructure: AWS (Cognito, EC2, ECS, Route53, Lambda, Kinesis Data Stream, Kinesis Firehose, SQS, SES, ElastiCache, RDS, CloudWatch, IAM, Audit, API Gateway, CodeDeploy), IaC (Terraform, AWS CDK)
- Middleware: Nginx, Supervisor
- Monitoring: New Relic, Sentry, AWS (CloudWatch)
- Data Analytics: BigQuery, Google Data Studio, Google Analytics, Metabase, Trocco
- Environment Setup: Docker
- CI: GitHub Actions, Amplify Hosting
- CDN: CloudFront
- Source Control: GitHub
- Communication: Google Meet, Slack, Notion, Redmine, Jira, ClickUp
求める人物像
IDEAL CANDIDATE
- Able to move forward in situations of ambiguity or undefined requirements with curiosity and initiative
- Able to make technical decisions by balancing short-term effort with long-term value
- Capable of rapid hypothesis testing and learning from failures
- Able to set high standards through code and reviews, and inspire the team
- Able to identify product issues and drive them to completion
- Able to collaborate with multinational team members and openly share knowledge
必須スキル
ESSENTIAL CRITERIA
- 5+ years of hands-on experience in system development
- Experience developing with TypeScript and React
- Full-stack engineering experience (both frontend and backend)
- Ability to independently handle the full development cycle from requirements definition to release
- 2+ years of code review experience
- Ability to write test code and contribute to improving product quality
- Experience in technical decision-making (evaluating technical requirements, cost, and maintainability to make balanced decisions)
- 2+ years of experience leading development as a technical lead (teams of 5+ members)
- Experience designing REST APIs
- Business-level proficiency in Japanese
歓迎スキル
DESIRABLE CRITERIA
- Experience developing with Go
- Experience designing systems using Domain-Driven Design or Clean Architecture
- Experience developing gRPC APIs
- Ability to effectively leverage AI to improve development speed and quality, and to document/share best practices for AI utilization
- Experience developing with Next.js
- Experience building CI/CD pipelines
- Experience in infrastructure setup (AWS, Docker, etc.)
- Business-level proficiency in English
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待遇・労働環境
COMPENSATION AND BENEFITS
給与
Compensation will be determined based on your previous experience, skills, and overall background.
勤務地
Work location will be determined based on your preference.
We offer a flexible work style, with a mix of remote and in-office work depending on job requirements.
(Average office attendance: about 4 days per month / 1 day per week recommended)
■ Osaka Office
1-13-22 Sonezaki Shinchi, Kita-ku, Osaka-shi, Osaka
WeWork Midosuji Frontier
■ Tokyo Office
2-14-4 Kita-Aoyama, Minato-ku, Tokyo
the ARGYLE aoyama 6F, WeWork The Argyle
雇用形態
正社員
勤務体系
■ Working Hours
9:00–18:00 (includes a 1-hour break; overtime may be required)
Flextime system (core hours: 10:00–16:00)
For employees above a certain grade, a discretionary labor system may apply in accordance with company policy.
■ Holidays & Leave
- Weekends (Saturday & Sunday) and national holidays
- Year-end and New Year holidays
- Summer vacation
- Special/compassionate leave
- Paid leave (10 days granted upon joining; additional days granted based on tenure)
試用期間
3 months (no changes to compensation or benefits during this period)
福利厚生
- Commuting allowance (bicycle commuting allowed)
- Company laptop provided
- Company mobile phone provided (for certain positions)
- Flexible start time system (can be adjusted every two months)
- Social insurance (health insurance, employees’ pension, employment insurance, workers’ compensation insurance)
- Life & health support leave
- Company-covered health checkup
- Maternity and childcare support programs
- Company club activities
企業概要
COMPANY OVERVIEW
本社所在地
〒530-0011 大阪府大阪市北区大深町6番38号 グラングリーン大阪 北館 JAM BASE 5階 JAM-OFFICE 5-A・5-B
設立
2017-10
資本金
1億円（累計資金調達額：63億円）
コーポレートサイト
https://mico-inc.com/
株式会社Mico
求人の最終更新日時： 2025/12/09 12:23
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