Senior TypeScript React Engineer - Remote & High-Impact

Xident; Union (NJ); Hybrid; USD 120,000 - 170,000; Full time

Job summary

Xident B.V. is seeking a Senior TypeScript Developer to own our frontend ecosystem: a React + Vite customer dashboard, an admin panel, an embeddable verification widget, and an Astro documentation site. You’ll build pixel-perfect interfaces for complex verification flows that feel effortless.

Xident is building the future of digital identity verification. Our platform enables businesses to verify users’ ages and identities in seconds, while privacy is preserved.

Qualifications

• 7+ years of professional TypeScript development.
• Expert-level React knowledge with hooks, context, and performance optimization.
• Production experience with Vite, Tailwind CSS, and modern build tooling.
• Solid testing discipline with Vitest, Playwright, or similar frameworks.

Responsibilities

• Architect and maintain our React + Vite + Tailwind customer dashboard and admin panel.
• Develop and optimize our embeddable verification widget (TypeScript, ONNX Runtime, WebAssembly).
• Build interactive SDK documentation and code examples using Astro.
• Ensure 90%+ test coverage using Vitest for unit tests and Playwright for E2E.

Skills

TypeScript

React

Vite

Tailwind CSS

WebAssembly

ONNX Runtime

Vitest/Playwright

Tools

Astro

Job description

We need a Senior TypeScript Developer to own our frontend ecosystem: a React + Vite customer dashboard, an admin panel, an embeddable verification widget, and an Astro documentation site. You'll build pixel-perfect interfaces that make complex verification flows feel effortless.

Xident is building the future of digital identity verification. Our platform enables businesses to verify users' ages and identities in seconds, while respecting privacy through our unique "Verify Once, Access Everywhere" model.

Founded in 2025, Xident is a remote-first company.

Our mission is simple: To make identity verification seamless, private, and accessible for everyone. We believe privacy and convenience shouldn't be mutually exclusive, and we're proving it every day.

What You'll Do

• Architect and maintain our React + Vite + Tailwind customer dashboard and admin panel
• Develop and optimize our embeddable verification widget (TypeScript, ONNX Runtime, WebAssembly)
• Build interactive SDK documentation and code examples using Astro
• Ensure 90%+ test coverage using Vitest for unit tests and Playwright for E2E

What We're Looking For

• 7+ years of professional TypeScript development
• Expert-level React knowledge including hooks, context, and performance optimization
• Production experience with Vite, Tailwind CSS, and modern build tooling
• Solid testing discipline with Vitest, Playwright, or similar frameworks

Nice to Have

• Familiarity with Astro for static site generation
• Background in WebAuthn/FIDO2 passkey implementations

Our Hiring Process

We respect your time and aim to complete the entire process within 2-3 weeks. Here's what to expect:

1

Application Review

Application Review

3-5 days

Our team reviews your application within 5 business days. We look for relevant experience, passion for our mission, and alignment with our values.

2

Initial Call

Initial Call

30 minutes

A 30-minute video call with our recruiting team to learn about your background, discuss the role, and answer your questions about Xident.

3

Technical Assessment

Technical Assessment

1-2 hours

Role-specific evaluation—this might be a coding challenge, portfolio review, case study, or technical discussion depending on the position.

4

Team Interviews

Team Interviews

2-3 hours

Meet with 3-4 team members including your potential manager and cross-functional partners. We assess technical skills, collaboration, and culture fit.

5

Final Interview

Final Interview

45 minutes

A conversation with a company leader to discuss your career goals, our vision, and ensure mutual fit. This is also your chance to ask strategic questions.

6

Offer

Offer

24-48 hours

If it's a match, we move quickly. Expect a competitive offer within 48 hours of your final interview, with clear details on compensation and equity.

Our Values

Privacy by Design

We iterate quickly, gather feedback, and improve continuously.

Ownership Mentality

Everyone owns their domain end-to-end. No finger-pointing, just solutions.

Transparent by Default

We're happy to answer any questions before you apply. Reach out to our team anytime.