Frontend Engineer at Citadel AI

Adachi, , Japan -

Full Time

Start Date

Immediate

Expiry Date

27 Jun, 26

Salary

0.0

Posted On

29 Mar, 26

Experience

2 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Svelte, Shadcn/ui, Vanilla JS, Bootstrap, Jinja, TanStack, Chart.js, Sveltekit, Vite, JSDoc, TypeScript, Vitest, Playwright, Frontend Engineering, Reactive Frameworks

Industry

Description

About Citadel AI Citadel AI builds software products to evaluate, monitor, and govern AI systems. Our mission is to make the world’s AI systems more reliable and trustworthy. We’re located in Tokyo, but we have an international team and global customers. Our goal is to build a world-class startup from Japan, and our team members have previously worked at leading companies such as Google, Paidy, Apple, Stripe, and Meta. This is a unique opportunity to join a team in Tokyo building new products for a global market. As an early employee at Citadel AI, you’ll have significant impact and ownership over the growth of our startup. We’re supported by Japan’s best investors and a top-tier enterprise customer base, and are currently scaling our business in the 1 → 10 stage. About the role We’re hiring our second frontend engineer to work with our small, full-stack team to build products to evaluate, monitor, and govern AI systems. Our users rely on our product interfaces to visualize and understand complex details about their AI models, datasets, and workflows. You’ll be responsible for designing and implementing product interfaces in our existing and new products, covering Evaluation: Quantitative testing of AI models and datasets Firewall: Real-time monitoring of AI prompts and responses Governance: System-of-record for enterprise AI use cases and workflows As we scale our products, team, and business from the 1 → 10 stage, you will also contribute to modernizing our codebase and scaling our engineering processes. You’ll primarily work with Svelte and shadcn/ui for new features, and vanilla JS, Bootstrap, and Jinja for existing features. Some technologies we use are: TanStack, Chart.js, Sveltekit, Vite, JSDoc, TypeScript, Vitest, Playwright. Job requirements Our company, technology, and market are new and changing rapidly, so a large part of the job is to adapt and learn new things. We value learning fast over pre-existing knowledge (“slope is more important than y-intercept”). You should have at least 3 years of frontend software engineering experience. We don’t require past experience with specific programming languages or frameworks, but knowledge of reactive frameworks such as React, Vue, or Svelte is desirable. English is required and Japanese is preferred. We prioritize candidates in Tokyo, but may consider remote for exceptional candidates. Nice-to-have: you can work full-stack, you've worked at a startup before, or you have AI/ML/LLM experience.

Responsibilities

The engineer will be responsible for designing and implementing product interfaces for systems evaluating, monitoring, and governing AI, covering areas like Evaluation, Firewall, and Governance. They will also contribute to modernizing the codebase and scaling engineering processes as the startup grows from the 1 to 10 stage.