Backend Engineer

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<h2>About us</h2><p>💙 Implicity is a digital MedTech, that brings outstanding innovations to cardiologists, thanks to Big Data and Artificial Intelligence.</p><p>Thanks to our leading cardiac remote monitoring platform, it’s way easier to manage data and predict patient issues, so that cardiologists can bring the best care at the best time.</p><p><strong>To put it simply, when you join Implicity, you’ll contribute to save lives</strong> <strong>with us</strong> 💓🩺</p><p>Dr Arnaud Rosier (cardiologist and AI researcher) &amp; David Perlmutter (engineer and entrepreneur), co-founded Implicity in 2016.</p><ul><li><p>10+ years later, a French Start-Up / Scale-Up 🐓 is a real game changer in the healthcare market, literally shaping the future of cardiology.</p></li><li><p>250+ hospitals / medical centers are already using our solutions, covering 100 000+ patients.</p></li></ul><p>👩🏻👨🏿👱🏻 At Implicity, you will find the greatest experts in data science, engineering, clinical, regulatory, IT, sales, customers success, etc. working together.</p><p>This amazing team already managed to make Implicity a clear European leader, and we will very soon do the same in the US market.</p><p><strong>In a nutshell, thanks to Implicity:</strong></p><p>🏆 Patients get a far better care</p><p>🏆 Doctors’ life is far easier, they can have a far better focus on prevention/treatment, and not admin/data burden</p><p>🏆 Healthcare payers (Social Security in France) eventually pays a far lower price (preventing/monitoring instead of treating/hospitalizing)</p><p><strong>It can start as soon as you can!</strong></p><hr><h3>Job and recruitment context</h3><h4>⭐️ <strong>Opening line</strong> ⭐️</h4><p>We are looking for a <strong>Backend Engineer</strong> to join our <strong>Ingestion squad</strong>, with solid <strong>TypeScript</strong> skills.</p><p>This is a backend engineering role serving a data domain. You will build the services, connectors and orchestration that bring cardiac device data into our platform.</p><p>These services sit on a <strong>clinically critical path</strong>: the reliability of what you build has a direct impact on patient monitoring, and everything runs in a <strong>regulated HealthTech environment</strong> (HDS hosting, medical-device traceability).</p><p><strong>🤝 Reporting Structure</strong></p><p><strong>Direct Report:</strong> Julien Sarazin (Deputy CTO)</p><p><strong>Collaboration:</strong> Data Ingestion Squad</p><h4>🧠 Your missions</h4><ul><li><p>Develop and maintain the <strong>backend services</strong> of our ingestion platform (<strong>TypeScript, NestJS, Node.js</strong>)</p></li><li><p>Build and evolve the <strong>connectors</strong> that integrate data from implanted and ambulatory cardiac devices - pacemakers, defibrillators, monitors - into the platform</p></li><li><p>Orchestrate processing with <strong>Temporal</strong>, and handle service-to-service communication (<strong>RabbitMQ</strong>)</p></li><li><p>Design and expose the <strong>APIs</strong> consumed by the rest of the platform</p></li><li><p>Optimise access to our <strong>PostgreSQL, MariaDB and MongoDB</strong> databases</p></li><li><p>Own reliability in production: <strong>Grafana</strong>, <strong>GitLab CI</strong>, deployment on <strong>Kubernetes</strong> and <strong>AWS</strong><br></p></li></ul><h4>🧁 Our Technical Environment</h4><p><em>Our stack is currently evolving. We do not expect expertise on every tool.</em></p><ul><li><p><strong>Cloud &amp; containers:</strong> AWS, Docker, Kubernetes</p></li><li><p><strong>Languages:</strong> TypeScript (primary), Python</p></li><li><p><strong>Backend:</strong> NestJS, Node.js — <strong>Architecture:</strong> microservices, event-driven</p></li><li><p><strong>Ingestion &amp; orchestration:</strong> Transitioning to <strong>Temporal</strong></p></li><li><p><strong>Databases:</strong> PostgreSQL, MariaDB, MongoDB, BigQuery</p></li><li><p><strong>CI/CD:</strong> GitLab CI — <strong>Testing:</strong> Jest, Xray</p></li><li><p><strong>Observability:</strong> Grafana, Prometheus, Datadog</p></li><li><p><strong>Collaboration:</strong> JIRA, Notion<br></p></li></ul><h4>🥇 Your profile</h4><p><strong>Must have:</strong></p><ul><li><p><strong>3+ years of experience</strong> in backend development, including taking services to production and operating them over time: deployment, monitoring, alerting, incident management</p></li><li><p>Strong backend engineering skills in <strong>at least one of: Python, TypeScript/Node.js, Java, Go or Scala</strong>. The squad works primarily in <strong>TypeScript and Python.</strong></p></li><li><p>Experience designing <strong>APIs</strong> and integrating data from external sources</p></li><li><p>Good understanding of <strong>SQL and NoSQL</strong> databases, and an interest in query optimisation</p></li><li><p><strong>Fluency in both English</strong> (essential for team collaboration) <strong>and French</strong> (for local interaction) is required</p></li><li><p><strong>Curiosity and AI usage:</strong> 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.</p></li></ul><p><strong>Nice to have:</strong></p><ul><li><p><strong>Docker and Kubernetes</strong></p></li><li><p>Workflow orchestration or message brokers (Temporal, Dagster, Kafka)</p></li><li><p>Experience in a regulated environment (health data, finance, public sector), or the habit of designing services with <strong>traceability and audit trails</strong> — knowing what was processed, when, and by which version of the service</p></li><li><p>Knowledge of <strong>Avro, Parquet or Protobuf</strong></p></li><li><p>Already practiced TDD</p></li><li><p>Open source project development experience</p></li></ul><p><em>A note on applying: we know the perfect candidate doesn't exist. If you believe you possess the core required experience and strongly align with this mindset, we highly encourage you to apply.</em></p><h2>🤝 Recruitment process</h2><ol><li><p>📞 <strong>First contact</strong> with Astrid (Talent Acquisition) — 30-45 min - Remote</p></li><li><p>🧠 <strong>Fit &amp; vision interview</strong> with Louay (CTO) — 45 min - Remote</p></li><li><p>💻 <strong>Technical interview</strong> with members of the squad — 1h30-2h - On-site</p></li><li><p>👥 <strong>Meet your manager -</strong> 30 min &amp; your Team <strong>-</strong> 30 min</p></li><li><p>📞 <strong>Reference check</strong> &amp; <strong>offer</strong></p></li></ol><p><em>Depending on your availability, the recruitment process should last less than 3-4 weeks.</em></p><h2>General information</h2><p>💰 <strong>Salary</strong></p><ul><li><p>For this job (type of contract), you have a base salary depending on your experience between 55-60<span>k€</span></p></li><li><p>Eligible for stock option (BSPCEs) according to the company's existing rules</p></li></ul><p><strong>👍 Good to know</strong></p><ul><li><p>Health care plan: Alan (50% employer)</p></li><li><p>Luncheon voucher: 9€ (50% employer)</p></li><li><p>Transport: 50% of your pass OR sustainable mobility pass</p></li></ul><p><strong>📍 Remote work &amp; Location</strong></p><ul><li><p>3 days per week (progressively)</p></li><li><p>Location: 2 rue du Colonel Driant, 75001, PARIS</p></li></ul>

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