GoFasti
GoFasti
51 – 200 Employees
ConsultingLogisticsMarketing
GoFasti helps businesses build and manage remote teams by connecting them with vetted talent across Latin America. Its services cover candidate sourcing, screening, and hiring support for roles including developers, designers, engineers, medical billers, and social media managers. Operating across consulting, marketing, and logistics contexts, GoFasti supports dedicated team formation, workflow integration, and compliance with applicable Latin American tax and labor requirements.

Senior Full-Stack Software Engineer — Latin America Remote

GoFasti is hiring a senior full-stack engineer in Latin America to build secure fintech products across TypeScript, PostgreSQL, mobile, and AI systems. The role covers financial-data integrations, asynchronous workflows, authentication, and production ownership.

Description

  • Develop across a TypeScript monorepo that includes a Next.js 16 web application and API, an Expo mobile application, and a Cloudflare Worker.
  • Evolve the shared PostgreSQL and Prisma data model used by multiple applications.
  • Create and support webhook integrations for Plaid, Stripe, and Linq.
  • Build queued inbound-message batching and scheduled job workflows.
  • Maintain security-sensitive functionality for encrypted bank tokens, chat data, per-user access controls, and authentication across web and mobile.
  • Develop the AI platform, including LLM tool calling over users’ financial data, persistent memory, and proactive insights.
  • Critically review AI-generated code, including code you produce yourself.

Requirements

  • Fluent written and spoken English.
  • At least six years of professional software engineering experience.
  • At least three years delivering production TypeScript and Node.js backends.
  • Experience shipping software for a company that moved money or processed bank or card data, such as Plaid, Stripe Treasury, Unit, Synapse-era BaaS, card issuing, lending, or payroll.
  • Advanced PostgreSQL expertise, including live-safe migrations, indexing, transactions, and query-plan analysis.
  • Hands-on experience with asynchronous systems, including idempotency, retries, webhook deduplication, and jobs that can fail partway through execution.
  • A security-first approach to personally identifiable information, encryption at rest, authentication tokens, and least-privilege access.
  • At least one instance of independently owning production operations, including on-call work, error monitoring, and root-cause analysis.
  • Daily experience with AI coding tools such as Claude Code, Cursor, or similar, along with a clear understanding of their limitations.
  • Written English strong enough for pull-request descriptions and incident reports to stand alone without follow-up questions.
  • Preferred: Production Plaid experience involving webhooks, item re-authentication, or transaction-sync cursors.
  • Preferred: Production LLM experience with tool calling, prompt evaluation, and cost or latency management.
  • Preferred: Experience with the Next.js App Router and React Server Components.
  • Preferred: Experience with SMS or messaging compliance, including opt-outs and TCPA, or with Stripe subscription billing.
  • Preferred: Experience with Expo or React Native.

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