Platform Engineer

Tokyo
Partial Remote
Full-time
August 8, 2025

About the Role

We’re looking for a Platform Engineer to help scale and improve our infrastructure and developer tooling. You’ll join a small, high-impact team working closely with SREs, developers, and engineering leadership to support the growth of our platform and practices.

We’re open to hiring engineers at any level—junior, mid, or senior. If you’re earlier in your career, we’ll support your development with mentorship and opportunities to grow. If you’re more experienced, you’ll take on more technical ownership, contribute to long-term strategy, and have the chance to mentor others.

You’ll be joining a collaborative team of five: two SRE Engineers, one Platform Engineer, and you. You’ll report to the SRE team manager. While we loosely split responsibilities between SRE (AWS, security, reliability) and Platform (CI/CD, DX, internal tooling), we work together closely and pitch in across domains when needed.

What We Value More Than a Perfect Resume

・We’re not looking for a perfect resume—we care more about curiosity, initiative, and a willingness to learn and collaborate.

Responsibilities

Contribute to the design, build, and maintenance of CI/CD pipelines, developer environments, and internal tooling.
Collaborate with engineers to improve the reliability, performance, and experience of our development workflow.
Automate deployments and system operations to reduce manual toil.
Take part in or lead cross-functional projects (e.g., infra migrations, toolchain improvements).
Write clear, maintainable code and documentation for platform systems.
Participate in technical discussions, reviews, and incident retrospectives.
(If senior-level) Define technical direction and platform roadmap.
(If junior-level) Learn on the job with support and mentorship from senior teammates.

Technical Skills (You don’t need all of these—pick up where you’re strong)

CI/CD Pipelines: Experience with GitHub Actions (preferred), CircleCI, or similar—bonus points for reusable workflows.
Containers & Orchestration: Docker familiarity; bonus if you’ve used orchestration tools in production.
Security: Awareness of secrets management practices; experience with tools like AWS Secrets Manager, HashiCorp Vault, etc. is a plus.
Observability: Experience with tools like OpenTelemetry, AWS X-Ray, Grafana, or Datadog.
Performance & Cost Optimization: Ability to tune infrastructure for speed and cost-efficiency.
Developer Experience (DX): Experience improving local dev workflows or integrating tools like ESLint, LocalStack, LaunchDarkly, Mixpanel, Sentry, Mock Service Worker, or Storybook.
Dependency Management Automation: Experience with Dependabot or Renovate.
Shared Packages: Exposure to maintaining internal libraries or packages (e.g., NPM, Dart).
Mobile CI/CD: Familiarity with iOS, Android, or Flutter pipelines is a bonus.
Testing: Strong testing mindset—especially for infrastructure or mobile contexts.
Cloud Infrastructure: Experience with AWS or GCP, ideally using IaC tools like AWS CDK or Terraform.

System Design

Able to design or contribute to secure, resilient, and scalable systems.

Collaboration & Growth

Enthusiastic about working closely with other engineers to solve platform challenges.
If senior-level Comfortable mentoring others, running design reviews, and driving best practices.
If junior-level Eager to learn, ask questions, and build confidence over time.

Mindset

Automation-first: Proactively reduces manual, repetitive tasks.
Productive: Looks for ways to make developer workflows faster and smoother.
Growth-oriented: Excited to evolve alongside a fast-moving team and tech stack.

APPLY NOW ➜🇯🇵 Residents Only

About amptalk

amptalk's mission is to maximize the time people spend with each other and to create opportunities that did not exist in the world until today.

They aim to create a society where people can live more efficiently by accomplishing tasks that humans alone can not do.

amptalk develops and markets products that allow users to focus more on high-level sales activities and accelerate sales generation through the use of voice recognition and various AI technologies. They hope to help create more opportunities in the world by developing these efficient and effective sales tools.

amptalk’s mission is to create "a world where people are empowered around conversations”.

They are creating a world where each and every person is empowered by using software to streamline and eliminate unnecessary tasks, and by using software to do what people have been unable to do until now. Conversation accounts for a large percentage of people's lives in society, and the concept of negotiation is not only used in business negotiations, but also in all aspects of human life, including romantic relationships. Yet, many aspects of conversations have not been given much opportunity to be reevaluated. amptalk presents such opportunities through developing software to create a world in which each individual is empowered and all users are happy.

Why amptalk - "An exceptional team with a deep understanding of pain points"

amptalk is a product-driven team that respects each other and is committed to excellence. They are a team of people who respect each other and are committed to being the best. They work in a diverse environment of nationalities and languages, unlearning from past experiences and sometimes using them as ideas to provide innovative solutions for their users and to make the world a more amazing place. amptalk focuses on creating products that solve problems by removing the focus from unnecessary and uninspiring tasks.

MISSION, VISION, and VALUE

MISSION - Maximize the time people spend with each other. The responsibility of sales and other customer-facing positions is to determine how much time they can spend with customers in a higher-quality manner. amptalk will unlock sales operations to maximize the amount of time spent talking to customers, and minimizing all the peripheral operations and communication barriers that are preventing the forementioned.

VISION - To create opportunities that didn't exist yesterday. The world is losing countless opportunities due to the inefficiencies of conversations and human behavior. By streamlining all sales-related tasks, such as training and administrative work, amptalk will create opportunities that didn’t have the chance to exist before.

VALUES

GET IT DONE

The best people are those who take initiative and execute. Ideas and theories alone accomplish nothing. Don't be a critic. Act first, instead of overthinking.

EXTREME OWNERSHIP

Let's stop drawing lines based on roles or titles. Break down barriers and treat everything as your own responsibility. Treat problems happening elsewhere as your own, and step outside the box to challenge yourself if it helps the team move forward.

EXPLORER

In a rapidly changing world, we applaud those who have a proactive spirit of exploring and taking on new challenges, and are always eager to try new things.

GIVE FIRST

Do good without expecting anything in return. Acting bases on short-term gains alone won't lead to real change. Put yourself in the shoes of society, our customers, and others, and act on what truly matters.

Service
amptalk analysis - A tool for analyzing phone calls and business meetings
Linking with all communication tools such as IP phones and video conferencing systems, amptalk analysis automatically transcribes, summarizes, and analyzes business negotiations and calls and automatically outputs the results to Salesforce / HubSpot / Slack / Microsoft Teams chat. This automated and visualized online negotiation process is available for both online and offline business meetings.

amptalk coach - An AI role-playing tool for rapid sales performance improvement
This AI-powered role-playing tool is designed to train sales professionals. It leverages AI to learn from sales materials and case studies, allowing users to practice sales conversations interactively. This helps new and junior employees quickly gain practical sales knowledge, learn autonomously, and apply their skills, essentially serving as an AI manager for speedy and realistic sales training.