Remote Fullstack Engineer (AI & Automation Experience)

Wearefram; Lavamünd; A distancia; EUR 70.000 - 110.000; Jornada completa

Descripción de la vacante

fram^ is seeking a Remote Fullstack Engineer to advance an AI-native platform that serves Swiss fiduciary firms with bookkeeping, payroll and compliance via a WhatsApp-first workflow. You will own the n8n automation layer, close a security backlog, and prepare production-ready tooling, CI/CD, observability, and staging.

You’ll work on authentication, RLS, multi-tenant data isolation, and a Next.js/TypeScript backend tied to PostgreSQL and Supabase, collaborating across time zones to ship safely.

Formación

• 4+ years of professional experience with Node.js/TypeScript in production backend systems.
• Strong hands-on experience with Next.js (App Router) and building/maintaining REST and webhook APIs.
• Deep, practical knowledge of PostgreSQL, including Row-Level Security (RLS) policy design and multi-tenant data isolation.
• Production experience with Supabase, or an equivalent BaaS (Firebase, AWS Amplify) — auth, storage and database.
• Experience with n8n, Zapier, or a comparable workflow-automation tool, ideally including securing/hardening automations that touch production data.
• Working DevOps fluency: CI/CD pipeline design, staging environments, secrets management, and basic monitoring/alerting setup.
• Solid understanding of authentication/authorization patterns and common web-application security pitfalls.
• Comfortable working in and improving a codebase with minimal existing test coverage or documentation.
• Clear written communication in English; able to work asynchronously across time zones.

Responsabilidades

• Remediate the platform’s active security exposure: enforce authentication and row-level security (RLS) on every API route.
• Replace n8n’s direct database master-key access with an authenticated ingestion API that derives tenant identity server-side.
• Design and implement a background job queue for heavy document processing to remove timeouts.
• Make cloud storage private and put the database schema into version control with a real staging environment.
• Build CI/CD pipelines, automated tests, and baseline observability (logging, monitoring, alerting).
• Harden and maintain the n8n workflows for WhatsApp document intake and accounting-automation flows.
• Implement data-subject-rights tooling and an append-only accounting ledger, coordinating with external advisor.
• Redact personal data from logs and enforce least-privilege access patterns.
• Collaborate with AI/Agent Engineer on backend integration points for the LLM-driven agent.

Conocimientos

Node.js/TypeScript

English communication

Herramientas

Next.js App Router

PostgreSQL with RLS

Supabase

n8n

Descripción del empleo

fram^ is looking for the Remote Fullstack Engineer.

This is an AI-native platform that lets Swiss fiduciary firms manage client bookkeeping, payroll and compliance through a WhatsApp-first workflow, backed by a Next.js/Supabase application and n8n automation. We’re hiring a backend-leaning full-stack engineer to close a critical security backlog, stabilise the platform for production use, and lay the operational groundwork — CI/CD, observability, staging — needed to onboard more customers safely. You will work directly inside the existing single-contributor codebase, take full ownership of the n8n automation layer, and be one of two engineering hires driving the technical roadmap (the other being an AI/Agent Engineer).

Responsibilities

• Remediate the platform’s active security exposure: enforce authentication and row-level security (RLS) on every API route; close public database policies exposing payroll and client data; fix a tenant-isolation bug that allows cross-tenant access


• Replace n8n’s direct database master-key access with an authenticated ingestion API that derives tenant identity server-side — removing the single largest operational risk in the automation layer


• Design and implement a background job queue for heavy, currently synchronous document processing (PDF/XLSX extraction, multi-account imports) to remove request-timeout failures


• Make cloud storage private (signed URLs, UUID paths) and put the database schema into version control, paired with a real staging environment


• Build CI/CD pipelines, automated tests — including tenant-isolation regression tests — and baseline observability (logging, monitoring, alerting)


• Harden and maintain the n8n workflows that run the WhatsApp document-intake and accounting-automation flows, including error handling, idempotency, and a dead-letter/retry path


• Implement data-subject-rights tooling (export/erase) and an append-only accounting ledger with reversal entries, in coordination with the company’s external data-protection advisor


• Redact personal data from application logs and enforce least-privilege access patterns throughout the stack


• Collaborate with the AI/Agent Engineer on backend integration points for the LLM-driven agent — tool authorization checks, audit logging of agent actions.

Qualifications

• 4+ years of professional experience with Node.js/TypeScript in production backend systems


• Strong hands-on experience with Next.js (App Router) and building/maintaining REST and webhook APIs


• Deep, practical knowledge of PostgreSQL, including Row-Level Security (RLS) policy design and multi-tenant data isolation


• Production experience with Supabase, or an equivalent BaaS (Firebase, AWS Amplify) — auth, storage and database


• Experience with n8n, Zapier, or a comparable workflow-automation tool, ideally including securing/hardening automations that touch production data


• Working DevOps fluency: CI/CD pipeline design (GitHub Actions or equivalent), staging environments, secrets management, and basic monitoring/alerting setup


• Solid understanding of authentication/authorization patterns and common web-application security pitfalls (mass assignment, privilege escalation, injection)


• Comfortable working in and improving a codebase with minimal existing test coverage or documentation — you will be establishing the engineering discipline, not just following it


• Clear written communication in English; able to work asynchronously across time zones.

Nice to have

• Experience with Swiss or EU data-residency / GDPR-driven architecture decisions


• Familiarity with double-entry accounting systems, or fintech/regtech products generally


• Experience integrating LLM-based agents into a production backend (tool-calling, audit trails)


• Prior experience as the sole or lead engineer on a live production system (start-up background)