Full-Stack Developer (React + Supabase)Advertising Specialist

Job Description

About AuthKeeper AuthKeeper is a zero-knowledge authentication vault designed for modern security and privacy. We offer encrypted storage for TOTP secrets, passwords, secure notes, and credit card data — powered by client-side encryption, real-time sync via Supabase, and robust row-level security. Our mission is to create a product where data sovereignty and usability coexist. Whether you're a developer, privacy advocate, or security-conscious individual, AuthKeeper delivers military-grade protection with zero-trust architecture — ensuring your data remains private, even from us. Role Overview We’re hiring a Full-Stack Developer with strong experience in React , Supabase , and security-aware frontend/backend development . You’ll play a central role in maintaining and scaling our secure vault infrastructure, building user-centric features, and strengthening client-side cryptography and secure storage workflows. This is a hands-on role with high-impact responsibilities and direct influence over a security-first product. Responsibilities Design and develop secure features across the full stack (e.g., vault UI, TOTP, secure notes, password manager) Write scalable, privacy-preserving code using React, TailwindCSS, Supabase, and Netlify Functions Implement cryptographic workflows using Web Crypto API and AES-256-GCM Enforce strict Row Level Security in Supabase and manage PostgreSQL access policies Integrate secure session handling and auto-lock mechanisms for sensitive vault data Harden frontend components with strong CSP headers, input validation, and memory-safe design Collaborate with security engineers to address threat models and implement mitigation strategies Continuously audit and improve encryption practices to maintain zero-knowledge guarantees Contribute to a secure CI/CD pipeline with static analysis, secrets detection, and code linting Required Skills Strong hands-on experience with React , TypeScript/JavaScript , and Tailwind CSS Deep understanding of Supabase , particularly authentication, RLS, and real-time sync Familiarity with Netlify Functions or similar serverless environments Experience with client-side encryption , browser-based crypto (Web Crypto API), and secure session design Solid knowledge of zero-knowledge architecture , memory handling, and local key derivation (PBKDF2) Understanding of web security principles: XSS, CSRF, CSP, HTTPS, HSTS Git, CI/CD workflows, and clean modular architecture Proactive mindset with attention to security implications in every layer Nice to Have Experience building or contributing to password managers, encrypted storage apps, or MFA tools Familiarity with OAuth2 , TOTP generation, or browser extension security models Experience implementing Progressive Web Apps (PWAs) or offline-first apps Understanding of SSR (e.g., Next.js), advanced security headers, and anti-fingerprinting techniques Why Join AuthKeeper? Help build a product that prioritizes privacy, encryption, and user control Work independently with high ownership over core systems Collaborate with a mission-driven team on a modern stack Gain exposure to advanced cryptography, privacy tech, and real-world threat modeling Make an impact in a space where security is not an afterthought — it's the foundation How to Apply Send your GitHub, portfolio (or projects), and a short paragraph about why this mission excites you to: 📧 developers@authkeeper.dev