Backend Engineer – API Integrationen, Connectoren, Worker/Jobs, Mailer Service, QA (m/w/d) – Remote – Freelancer

Mtr Rechtsanwaltsgesellschaft Mbh

Source: PersonioLocation: EU/EMEAPublished: Feb 02, 2026Confirmed active: Sep 11, 2026
Part-timeFreelance / ContractTechnology

Key points from the posting

Tech stack
PythonNodeGoOAuthWebhooksPostgresQueue/EventingDockerWorker/JobsObservabilityBoxHubSpot
Benefits
  • 100% Remote

Read out of the job posting automatically

Our assessment

  • Our reading of the full posting text confirms it: fully remote.
  • 25 more open roles from this employer in our index. 19 of them fully remote.

This section only: calculated automatically by nomado24, from our own job index and our own reading of the posting text. Not stated by the employer.

Job description

WIR

sind MTR Legal Rechtsanwälte. Mittelständisch und international. Wir beraten im gesamten Familienrecht. Ein starker Wegbegleiter für nationale und internationale Mandanten. Wir verfolgen nicht nur Leistung, sondern schaffen auch Raum für Persönlichkeiten, um gemeinsam an einem Strang zu ziehen. Denn wir wissen: Mit Ihnen bringen wir unser Beratungsniveau für unsere Mandanten auf das nächste Level!

DU

Was du dafür können musst

  • Starker Backend-Track Record (Python/Node/Go ok)
  • API-Integrationen in Produktion (OAuth, Webhooks, Pagination, Rate Limits)
  • Datenbanken/Schemas + saubere Migrationen
  • Failure-Mode Thinking + Testing-DNA

Was am Ende stehen muss (Deliverables)

  • Connectoren (priorisiert): Box + HubSpot , dann Microsoft Graph , danach Asana/Billing
  • Worker/Jobs: queue-driven, stateful, replayable
  • Mailer Service: PDF-Anhang, Logging, Retry, Delivery Checks, Dedup/Idempotency
  • Audit Events + Persistenz (Correlation IDs, Traceability)
  • QA: Contract/Integration Tests + E2E Regression für Versand/Fristen

CONNECTING THE DOTS

Tech (Orientierung)

APIs/OAuth/Webhooks, Postgres, Queue/Eventing, Worker/Jobs, Docker, Observability. Systeme: Box, HubSpot, Microsoft Graph, Asana, Billing.

Rahmenbedingungen

100% Remote (CET/Europa ideal)
Projektbasis, Start asap, Auslastung nach Vereinbarung

PERSPECTIVE

Du baust Integrationen, die bei Rate Limits, Webhooks, Timeouts und Retries nicht sterben. Kein Happy-Path-only.

ITfull or part time

This role is provided by an external source. Applications are handled on the source website.

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