Senior Platform JS Full-Stack Developer

Description

• Design and maintain core infrastructure systems: domains, TLS, caching, proxying, load and geo balancing; • Own and evolve the authentication system, including 2FA, SSO, and related security flows; • Maintain and improve billing integrations; • Develop and support the mailer system and internal tooling (including browser extensions); • Take ownership of our bundling pipeline, including custom plugins and build tooling; • Work on SSR and isomorphic rendering with Solid.js; • Support observability infrastructure (using OpenTelemetry stack); • Implement and improve image/video processing pipelines and project export features;

Requirements

• 5+ years of product development experience • Hands-on experience with Node.js/Bun and TypeScript for building, deploying, and maintaining API services • Experience with authentication protocols and security fundamentals (OAuth, SSO, 2FA, common vulnerabilities) • Familiarity with observability tooling and practices (logging, tracing, metrics) • Experience with MongoDB or other databases • Comfort working across the stack, from browser APIs to infrastructure configuration • English at a B2+ level. • Experience with billing systems such as Stripe (would be a plus) • Proficiency in the modern Solid.js ecosystem (would be a plus) • Knowledge of bundlers and build tooling at a low level (Bun, esbuild, vite, custom plugins) (would be a plus) • Experience with network and content delivery technologies (HTTP/S, DNS, TLS, CDN, proxying and caching) (would be a plus) • Experience with SSR frameworks or isomorphic rendering patterns (would be a plus) • Familiarity with containerization, cloud environments, and CI/CD (would be a plus) • Experience with media processing pipelines (image/video transformation) (would be a plus) • Understanding of browser extension architecture (would be a plus).

Benefits

• Remote work with a flexible schedule • 28 weekdays of paid annual leave • Access to a corporate laptop • Compensation for coworking space fees • Language courses • Compensation for sports or other physical activities • A learning budget to invest in courses, books, or conferences.

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