What Youll Do
Innovate Design & Code
Lead the Web SDK: Design and develop the core TypeScript SDK that powers our passwordless authentication flows.
Innovate & Code: Build secure modular and tree-shakable components that provide a seamless Developer Experience (DX).
Reverse-Engineer & Debug: Tackle complex browser-side flows and ensure our SDK works reliably across different environments and edge cases.
Collaborate: Work closely with Backend Mobile and Security teams to align on delivering end-to-end valuable features.
Own the Architecture: Manage the full lifecycle of the SDK from bundling strategies to distribution (NPM/CDN).
Scale for Impact: Design the SDK to handle diverse integration patterns without performance degradation.
Live & Breathe the Architecture
End-to-end: Own significant parts of the system design - from concept to deployment.
Constant Improvements: Continuously improve our codebase and infrastructure focusing on performance reliability and scalability.
Quality-First: Automate test monitor and optimize - end to end.
Create Impact
Ship features that directly affect user conversion and retention.
Build tools and SDKs that developers love to integrate.
Push boundaries on what passwordless can mean - and make it bulletproof.
What You Bring
Must-Haves
5 years of Deep Frontend/Web Development: Mastery of TypeScript and modern JavaScript.
SDK/Library Expertise: Proven experience building and maintaining client-side SDKs or highly-complex open-source libraries used by other developers.
Browser Internals: Strong understanding of the DOM browser security models (CORS CSP) and Web APIs.
Modern Tooling: Expertise in bundling and build-tools (e.g. Webpack Rollup Vite) and managing package distribution via NPM.
Quality & Testing: Experience with unit and integration testing for client-side code (e.g. Jest Playwright or Cypress).
Team-first Mindset: You enjoy mentoring others and collaborating on complex architectural decisions.
Nice-to-Haves
Identity Protocols: Familiarity with WebAuthn Passkeys OAuth2 or OIDC.
Cross-Platform: Experience with Mobile-Web wrappers or Capacitor/Cordova bridges.
Security Focused: Knowledge of OWASP Top 10 specifically for frontend applications.
What Success Looks Like
Delivery-Driven: You design code and ship with clarity and ownership.
Tech-Driven: You raise the technical bar for architecture and reliability.
DevX-Driven: You make devs love using our platform and users forget passwords even existed.
Impact-Driven: You contribute ideas that change how our product works not just how its implemented.
Why Join Us
Work on a product that blends security innovation and usability - not an easy trio to get right.
Real ownership from day one: your ideas will shape the core of what we build.
A tight-knit team that values autonomy curiosity and straight talk over process bureaucracy.
Career Growth - with Unicos growth to North America & EMEA our office will grow together with leadership & product opportunities.