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soonami.io GmbH

Fast growing global community of Web3 and AI builders.

Senior Fullstack Developer — Claude Code Expert

Full-stack EngineerSoftware EngineerFull TimeRemoteSeniorTeam 1-10Since 2021H1B No SponsorCompany SiteLinkedIn

Location

United States

Posted

3 days ago

Salary

Not specified

Seniority

Senior

GermanCloudFirebaseGoogle Cloud PlatformJavaScriptNode.jsSvelteTypeScript

Job Description

• Support the launch and post-launch phases by: • Finalizing the feature set for launch • Establishing best practices within the team • Transitioning processes from development into an operations mode • Benchmarking IT infrastructure and shaping the technical roadmap • Potential for extended involvement beyond the initial engagement

Job Requirements

  • Highly experienced in AI-based software development — preferably with Claude Code
  • Backend skillset:
  • TypeScript (advanced)
  • Firebase / Google Cloud Platform ecosystem
  • Node.js / Express
  • REST API design — deep understanding of HTTP, status codes, and error handling
  • OAuth2 / JWT authentication based on a Firebase solution
  • Proven experience implementing GitHub-based CI/CD pipelines for Firebase Functions across development, staging, and production environments
  • Experience integrating Twilio and Stripe
  • Nice to have (Backend):
  • Experience with Firebase Admin SDK v12+ (note: breaking changes since v10)
  • Familiarity with webhook-driven architectures (Stripe, Twilio webhooks)
  • CORS configuration and cross-origin security aligned with Google Cloud IAM permissions
  • Experience with Mailjet or similar email services
  • Frontend (supporting role):
  • SvelteKit v2
  • Svelte 5, including runes ($state, $derived, $effect)
  • TypeScript
  • Tailwind CSS
  • Responsive design

Benefits

  • Work with an experienced team that has already built successful platforms
  • Be involved in all company development processes
  • Significant scope for creativity and personal responsibility
  • Flexible working hours and a dynamic, appreciative environment
  • Access to an inspiring network of exciting professionals

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