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Full Stack Engineer 2More

6.5M JPY - ***M JPY

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Kanagawa

Full-time (permanent)

Online Interview: Yes

Remote Work from Overseas: Yes / Remote Work in Japan: Yes

Top-Selling Points

Rate of Foreigners

Less Than

Frequency of English Usage

Less Than

International employees Apply from overseas Remote work

Related Skills

Library/Framework

React

Programming Language

TypeScript JavaScript

Language Requirements

Required

Preferred

Job Description

[Recruitment Background]
With AI and machine learning set to become the foundation of society, the company aims to lead the world with next-generation AI cloud services. A strategic partnership with Tenstorrent, led by renowned semiconductor designer Jim Keller, marks the full-scale expansion into the global market. The mission extends beyond technical provision to driving client business success through innovation. The team seeks engineers to help transform cutting-edge AI chip technology into accessible infrastructure for everyone.

[Role overview]
As a Full-Stack Engineer, you will build the customer-facing console and developer 
experience: onboarding, model catalog, playground, keys/projects, usage dashboards, request 
logs, and “debuggability surfaces” that reduce support burden and build trust.
This team will work closely with the control plane, serving, and infrastructure teams to ensure 
the console reflects real platform behavior (streaming, timeouts, rate limits, capacity) and that 
customer workflows are self-serve wherever possible.

[Responsibilities]
● Build the web console end-to-end: org/project management, API keys, model catalog, 
endpoints/tier configuration, and customer self-serve workflows.

● Deliver a high-quality playground: real streaming behavior, parameter editing, model 
switching, presets, and “copy as code” snippets to accelerate integration.

● Build strong debugging UX: request logs, correlation/request IDs, error attribution, 
latency breakdowns (TTFT vs decode), and trace/log views where available.

● Build usage and cost visibility: usage charts, per-model breakdowns, rate-limit/quota 
visibility, and billing/credit status surfaces (in partnership with the control plane team).

● Improve onboarding and docs: quickstarts, examples, SDK patterns, clear error 
messages, and “first request in minutes” flows.

● Partner with the control plane team: design customer-facing workflows for quotas, 
limits, tiers, and dedicated endpoints with safe guardrails and clear UX.

● Partner with serving/infra teams: ensure telemetry is reliable enough to show 
customers, and expose the right signals for debugging and trust.

● Build internal operator/admin tooling: safe customer configuration actions, support 
workflows, and audit-friendly operations where needed.

● Quality and polish: performance basics, accessibility, consistent UI patterns, stable 
state management, and pragmatic iteration speed.

● Close the feedback loop: collect customer pain points, reduce friction, and ship product 
improvements quickly.

[Development Environment]
Primary Languages: TypeScript, JavaScript
Framework: React (Frontend)
Database: RDB and Time Series DB for handling usage, logs, and billing data
Cloud Services: Cloud-based AI platform (Serving/Control Plane integration)
Development Tools: Git, CI/CD, Frontend testing (e.g., Jest), Observability (Log/Trace infrastructure), API debugging tools

[Impact and Achievements of Global Employees]
Foreign nationals from countries such as Sri Lanka, Uzbekistan, and Canada comprise half of the workforce. Both English and Japanese are used daily within the company.

[Work Environment]
Full remote work is available. Some employees work entirely remotely from locations outside of Japan.

Required Skills and Experiences

[Requirements] ● 5+ years building production web products (React/TypeScript) plus comfort collaborating on backend contracts. ● Strong product taste and developer empathy; you care about “it just works.” ● Ability to translate platform complexity into clear, trustworthy user-facing experiences. ● Strong engineering habits: testing, performance basics, clean interfaces, pragmatic iteration speed. ● Strong written communication—docs and error messages are part of the product.

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Working Condition

[Employment Type]
Permanent employee. Probation period: 3 months.

[Work Location]
*Full remote work is available. Some employees work remotely from locations outside of Japan.
■Address: 10F Queen's Tower A, 2-3-1 Minatomirai, Nishi-ku, Yokohama-shi, Kanagawa 220-6010
■Access:
7-minute walk from Sakuragicho Station (all lines).
Directly connected to Minatomirai Station (Minatomirai Line / Tokyu Toyoko Line).
■Smoking Policy: No smoking allowed on the premises (Entirely non-smoking).
■Scope of Change in Workplace: Any workplace designated by the company.
■Transfer/Secondment: None (No relocation or external secondment required).

[Expected Annual Salary]
Annual Salary: JPY 6,500,000 – 10,000,000
Monthly Salary: JPY 541,000 – 833,000
*Base Monthly Salary: JPY 541,000 – 833,000
■Salary Increase: Available (Based on performance review)

[Working Hours]
・Working Hours: 09:00 – 18:00
・Break Time: 60 minutes

[Benefits and Welfare]
Commuting Allowance: Partially covered (Up to JPY 15,000 per month). / Social Insurance: Fully covered (Health Insurance, Employee Pension, Employment Insurance, and Workers' Accident Compensation Insurance). / Overtime Pay: Paid according to actual overtime hours worked.

[Holidays and Leave]
Annual Holidays: 120 days / Five-day Workweek System / Annual Paid Leave: 10+ days (Starting from the 7th month of employment)

RECRUITMENT PROCESS

HR interview ⇒ departmental interview ⇒ technical interview ⇒ final interview ⇒ offer
*The number of times and contents of the selection process (with or without live coding, etc.) may be subject to change depending on the situation.

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