TESSAN Tech Stack

Telemedicine platform connecting patients to specialists across France

Hospitals and Health Care Paris, Île-de-France 501–1,000 employees Founded 2018 Privately Held

Tessan operates a phygital telemedicine infrastructure combining teleconsultation with connected medical devices and pharmacy integrations. The tech stack reveals a production-focused engineering discipline (Kubernetes, Prometheus, Datadog, Terraform) paired with LLM integration (LangChain, OpenAI, Whisper), suggesting active development around AI-assisted consultation and voice-to-text capture. Hiring velocity is accelerating with 6 roles posted in the last month—notably tilted toward sales (5 of 12 open roles) and split between C-level and manager/director tracks—a pattern consistent with geographic expansion and operational scaling rather than greenfield R&D.

Tech Stack 28 technologies

Core StackPython FastAPI C# LangChain OpenAI MongoDB Redis InfluxDB RabbitMQ Docker Kubernetes Helm Terraform Datadog Prometheus Grafana GitHub Actions Angular React TypeScript Kotlin ADP JavaScript LangFuse LangSmith Whisper Azure Android

What TESSAN Is Building

◆Challenges

Expanding sales coverage across france
Structuring technical teams
Scaling telemedicine platform
Improving system resilience
Rapid scaling to meet demand
Integrating new technologies
Ensuring consistent user experience
Expanding btob client base
Ensuring reliable operations at scale
Reducing medical deserts

▲Active Projects

Developing backend apis
Improving resilience and scalability of telemedicine solution
Btob pharmacy acquisition in île-de-france
Commercial expansion in île-de-france
Operational standards implementation
Onboarding of optician partners
Upsell and new usage development
Develop doctor network
Sell tele-expertise solution
Mobile and web application development

Hiring Activity

Accelerating10 roles · 6 in 30d

Department

Sales

Engineering

Ops

Product

Support

Seniority

C-Level

Intern

Junior

Manager

Mid

Director

Notable leadership hires: Commercial Director, Chief Operating Officer

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About TESSAN

Tessan builds a telemedicine platform designed to extend primary and specialist care access across France, particularly into underserved regions. The product layer spans teleconsultation software, pharmacy integration (B2B), optician partnerships, and a mobile/web application stack. Current initiatives include expanding the doctor network, developing tele-expertise offerings for specialists, and scaling B2B client acquisition in Île-de-France. The company is privately held, founded in 2018, and operates from Paris with approximately 500–1,000 employees.

HeadquartersParis, Île-de-France

Company Size501–1,000 employees

Founded2018

Hiring MarketsFrance

Frequently Asked Questions

What tech stack does Tessan use?

Python, FastAPI, C#, LangChain, OpenAI, Whisper, MongoDB, Redis, RabbitMQ, Kubernetes, Azure, Terraform, Angular, React, TypeScript, Kotlin, and Android. Infrastructure monitoring via Datadog, Prometheus, and Grafana.

What is Tessan working on?

Backend API development, platform resilience and scalability improvements, B2B pharmacy and optician partnerships, doctor network expansion, tele-expertise for specialists, and geographic expansion across France—particularly Île-de-France.