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Skills: TCP/IP, GCP, AWS, Kubernetes, Istio
Mercari, Inc.
Senior Platform Infrastructure Engineer - Mercari
Minato, Japan · Hybrid
Senior
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Skills: Kubernetes, Terraform, Google Kubernetes Engine (GKE), Go, Infrastructure as Code
Calling all innovators – find your future at Fiserv. We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations…
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Want to be a part of Asia Pacific & Middle East's (APME) largest, most innovative, and rapidly growing data centre company? AirTrunk is a technology company with a powerful purpose - to scale and sustain the relentless g…
This job requires Japanese language ability. JD is available in Japanese ONLY. 本ポジションは英文JDの用意がありません。 はじめに あらゆる価値を循環させ、あらゆる人の可能性を広げる 「地球資源が限られているなか、より豊かな社会をつくるために何ができるか」。2013年、創業者の山田進太郎が世界一周の旅で抱いた課題意識から、フリマアプリ「メルカリ」は生まれまし…
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GAIDOOR株式会社
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GAIDOOR株式会社
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会社概要 生成AIは急速に普及し、使う人も増えました。 一方で、企業の中ではまだ個人が便利に使うツールとして活用されることが多く、組織全体の知識や業務プロセスにまで十分浸透しているとは言えません。 Gigalogyが取り組んでいるのは、そのギャップです。 私たちのミッションは、 "Bridging the Gap Between Technology and User Experience" テクノロジーとユーザー体験の間にあるギャップ…
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GAIDOOR株式会社
【年収〜700万円】Junior Web Application Engineer | Developing Innovative Features for Customer Value
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GAIDOOR株式会社
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GAIDOOR株式会社
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【年収~ 1200万円】Consultant / BizDev | Leading DX Transformation in Real Estate × AI
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Full-time
Posted 27d ago
~40 hrs/week
Responsibilities
Design, develop, and evolve cloud networking infrastructure to support global multi-region strategies and business operations. Automate platform operations and collaborate with SRE and Security teams to improve system reliability and security.
Requirements
Requires strong networking fundamentals and production experience with cloud platforms like GCP or AWS, Kubernetes, and service meshes like Istio. Proficiency in automation languages such as Go or Python and experience with Infrastructure as Code is essential.
Circulate all forms of value to unleash the potential in all people
"What can I do to help society thrive with the finite resources we have?" The Mercari marketplace app was born in 2013 out of this thought by our founder Shintaro Yamada as he traveled the world. We believe that by circulating all forms of value, not just physical things and money, we can create opportunities for anyone to realize their dreams and contribute to society and the people around them. Mercari aims to use technology to connect people all over the world and create a world where anyone can unleash their potential. For more information about Mercari Group's mission, see Mercari's Culture Doc: https://careers.mercari.com/culture/
Organization/Team Mission
Mercari Engineering Principles
Mercari Engineering Principles are a shared understanding that serves as the foundation of engineering beliefs and behavior at Mercari. The Engineering Principles are designed to complement the organizational identity (Mercari's mission, values, and culture) from an engineering viewpoint. These principles ultimately help us achieve Mercari's mission by defining the ideal state we seek to realize in the long term.
Our team's mission is to make the communication between our customers and our systems smooth, reliable, and secure.
The network is the critical bridge that connects users to Mercari's applications and the systems behind them. These systems are complex, widely distributed, and composed of diverse data paths.
The Networking Platform team helps Mercari engineers deliver more reliable services and improve development efficiency by providing network infrastructure and DevOps support. We manage the entire network, from edge areas such as the CDN to the cloud, service mesh (Istio), and physical data centers.
Work Responsibilities
Design, develop, and evolve the cloud networking and infrastructure that supports the entire business
Design and implement networking/infrastructure solutions that support our global and multi-region strategy
Improve systems to reduce operational engineering cost
Support the migration and adoption of new platform features and tools
Improve and drive security and reliability in collaboration with the SRE and Security teams
Automate day-to-day platform operations to improve efficiency and reduce toil
Collaborate with internal developers to understand their needs and deliver solutions
Unique Challenges
In this position we are looking for a software engineer with knowledge of, or interest in, developing platform network and infrastructure systems, with hands-on DevOps and coding experience. The ideal person is passionate, proactive, and able to see an imperfect system as an opportunity rather than a problem. This role suits someone who enjoys rolling up their sleeves to shape the environment and drive impactful improvements, who can identify and solve problems on their own, and who can steadily add features to large-scale systems.
Qualifications
Required Experience/Skills
Strong networking fundamentals (TCP/IP, IP address management, OSI layers 4–7, cloud routing, CDN, DNS, TLS, HTTP)
Production experience building and operating cloud networks using GCP or AWS
Production experience building and operating Linux and Kubernetes networking
Knowledge of network proxies (Envoy, HAProxy, Nginx) and regional/VPC routing
Production experience operating CDNs (e.g., edge/cache configuration, multi-CDN, performance and security)
Production experience with a service mesh such as Istio (e.g., traffic management, reliability practices)
Ability to automate network-related workflows using any familiar language ( Go, Python or Bash etc ) and to deliver capabilities as a service
Experience managing network configuration using Infrastructure as Code (IaC)
Experience writing design documents, collaborating with stakeholders, and making technical decisions
A track record of developing tools for internal users and improving platform operations
On-call and production troubleshooting experience for reliability-critical systems (incident response, debugging, and root cause analysis)
Empathy with Mercari's mission and values
Preferred Experience/Skills
Passion for delivering a pleasant user experience through the platform and supporting operational efficiency
Experience building and operating networks in large-scale distributed systems composed of hundreds of microservices
Production experience operating service meshes such as Istio or Linkerd
Experience architecting scalable, highly available infrastructure or middleware (e.g., control planes, Kubernetes operators/CRDs, or service-as-a-platform APIs)
Experience with agent-driven workflows and usage of agentic tools such as Claude, Cursor, and Codex
Legacy Image Provider to Cloudflare Images: Traffic Estimation and Safe Rollout
Kubernetes Cluster migration on the Mercari Microservices Platform
Recruiting at Mercari
At Mercari Group, we value empathizing with and embodying the mission and values of the Group and each company. To promote the creation of an organization that maximizes the total amount of value exhibited by all members, we would like to understand the experience and skills of each candidate as accurately as possible.
Recruiting cycle at Mercari Group
Application screening
Skill assessment: For engineering positions, you will be asked to complete a skill assessment on HackerRank or GitHub. For non-engineering positions, you may be asked to complete an assessment depending on the position. (The timing of the assessment may coincide with the interview process.)
Interview: The number of interviews may vary depending on the position.
Reference check: We will ask for online references around the timing of the final interview.
Offer: Offers will be determined carefully in consideration of the final interview and the reference check.
Here at Mercari, we work to realize a world in which no one's potential is limited by their background and everyone has the opportunity to freely create value. We also firmly believe that a mindset of Inclusion & Diversity is essential for us to achieve our mission.
This, of course, extends to our hiring practices as well. Mercari is committed to eliminating discrimination based on age, gender, sexual orientation, race, religion, physical disability, and other such factors so that anyone who shares our mission and values can join us, regardless of their background. For more details, please read our I&D statement.
Circulate all forms of value to unleash the potential in all people
Industry
Software Development
Company size
1,001-5,000 employees
Founded
2013
Headquarters
Minatoku, Tokyo
LinkedIn followers
118,915
Mercari is a C2C marketplace app allowing anyone with a smartphone to easily sell items they no longer need, providing a new and unique user experience.
In the past, buying and selling secondhand items has commonly been done at physical shops. However, this came with issues: the travel time required to go to these shops, the limited selection of items these shops carry, the unclear prices for both the buyer and seller alike due to the involvement of dealers, and more.
Online auction websites for buying and selling secondhand items came with their own problems, including difficult listing procedures and long bidding times. On Mercari, anyone can use their smartphone to easily buy and sell items. We also provide easy and inexpensive shipping options thanks to our partnerships with delivery companies and convenience stores. As our service is catered to individuals on both the buying and selling sides, anyone can experience the fun of easily selling unneeded items for money and the excitement of finding unique secondhand items to buy.
With the technological capabilities and extensive user and information bases built through Mercari, we launched the Merpay mobile payment service in 2019, the B2C marketplace Mercari Shops in October 2021, and the cryptoasset exchange service Mercoin in March 2023. We strive to continuously enhance the user experience and expand our businesses.
Offices: Minatoku, Tokyo, JP · Palo Alto, California, US · Fukuokashi, Fukuoka, JP
How many Technology jobs are open in Minato, Japan right now?
There are currently 208 open technology positions in Minato, Japan listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Technology roles in Minato, Japan?
Companies currently hiring include Cisco, Mercari, Inc., AXA, B-Global Tech, Treasure AI, among others. Browse the listings above to see every active employer.
Are there remote or hybrid Technology jobs in Minato, Japan?
Yes — 93 of the 208 open technology positions offer remote or hybrid work (15 remote, 78 hybrid).
How do I apply for Technology jobs in Minato, Japan?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.