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# Backend Engineer - Data Platform

- **Company:** Implicity
- **Location:** Paris, France (Remote available)
- **Experience:** Experienced
- **Salary:** €55,000.0 - €60,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Airflow, Amazon Web Services, JIRA, BigQuery, Cloud Computing, Software Quality, Databases, Continuous Integration, Data Infrastructure, Data Integration, Protocol Buffers, Python (Programming Language), PostgreSQL, MariaDB, Message Broker, MongoDB, Node.Js, NoSQL, Open Source Technology, Productivity Software, Query Optimization, RabbitMQ, Prometheus, SQL Databases, TypeScript, Workflow Management Systems, Parquet, Datadog, Grafana, Backend, Gitlab-ci, Kubernetes, Avro, Apache Kafka, NestJS, Docker, Golang, Microservices
- **Published:** August 24, 2026
- **Apply:** https://fr.indeed.com/viewjob?jk=a2ac202c716cc54a

## About the Role

* 3+ years of experience in backend development, including taking services to production and operating them over time: deployment, monitoring, alerting, incident management
 * Strong backend engineering skills in at least one of: Python, TypeScript/Node.js, Java, Go or Scala. The squad works primarily in TypeScript and Python.
 * Experience designing APIs and integrating data from external sources
 * Good understanding of SQL and NoSQL databases, and an interest in query optimisation
 * Fluency in both English (essential for team collaboration) and French (for local interaction) is required
 * Curiosity and AI usage: We actively embrace working with AI productivity tools such as Claude to solve problems, sharpen code quality, and maximize efficiency. Fully leveraging AI in our daily work is not just encouraged - it's an essential strength we cultivate.

Nice to have:

 * Docker and Kubernetes
 * Workflow orchestration or message brokers (Temporal, Dagster, Kafka)
 * Experience in a regulated environment (health data, finance, public sector), or the habit of designing services with traceability and audit trails - knowing what was processed, when, and by which version of the service
 * Knowledge of Avro, Parquet or Protobuf
 * Already practiced TDD
 * Open source project development experience

## Description

* Develop and maintain the backend services of our ingestion platform (TypeScript, NestJS, Node.js)
 * Build and evolve the connectors that integrate data from implanted and ambulatory cardiac devices - pacemakers, defibrillators, monitors - into the platform
 * Orchestrate processing with Temporal, and handle service-to-service communication (RabbitMQ)
 * Design and expose the APIs consumed by the rest of the platform
 * Optimise access to our PostgreSQL, MariaDB and MongoDB databases
 * Own reliability in production: Grafana, GitLab CI, deployment on Kubernetes and AWS

Our Technical Environment

Our stack is currently evolving. We do not expect expertise on every tool.

 * Cloud & containers: AWS, Docker, Kubernetes
 * Languages: TypeScript (primary), Python
 * Backend: NestJS, Node.js - Architecture: microservices, event-driven
 * Ingestion & orchestration: Transitioning to Temporal
 * Databases: PostgreSQL, MariaDB, MongoDB, BigQuery
 * CI/CD: GitLab CI - Testing: Jest, Xray
 * Observability: Grafana, Prometheus, Datadog
 * Collaboration: JIRA, Notion


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