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Thermosphr

Senior Full Stack Engineer

Hybrid

Paris, France

Senior

Full Time

19-11-2025

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Skills

Communication Python TypeScript CI/CD DevOps Azure DevOps Agile methodologies Programming Azure Front-end Development Project Management Agile Vue.js GCP Flask FastAPI CI/CD Pipelines Terraform Infrastructure as Code

Job Specifications

About the Development Team

Our development team is composed of talented professionals with diverse levels of seniority and expertise. We operate using agile methodologies to ensure flexibility and continuous improvement in our development processes. We collaborate closely, fostering a supportive environment where everyone's input is valued. To this end, the position requires a frequent presence at our office in Paris. Please only apply if this is possible for you.

We utilize Azure DevOps for our project management and CI/CD pipelines, ensuring streamlined workflows and efficient delivery. Our projects involve creating robust tools for both our operations team and our customers, focusing on enhancing user experience and operational efficiency.

We work full stack, which means you'll have the opportunity to work on both the backend and the frontend. Our backend stack primarily consists of Python web services, mostly using FastAPI, and our infrastructure is managed with Terraform on Google Cloud. For the frontend, we use Vue.js and TypeScript, allowing us to build responsive and dynamic user interfaces.

What We Offer:

Exciting Projects: Engineering projects with visible impact on the daily operations of large commercial buildings and and contribution to build a holistic engineering solution impactful for the planet
Supportive Team Environment: Receive a warm welcome from our Development team, who prioritize integration and continuous learning. You'll also benefit from the overall supportive atmosphere of the Thermosphr team, ensuring you have the help you need to succeed.
Flexible Work Environment: Enjoy the freedom to work from home or in the office.
High-Quality Equipment: We provide excellent technical equipment (Hardware and Software) to ensure you have the best tools to perform your job efficiently.
Learning and Development: Access a budget for learning and personal development, allowing you to enhance your skills and grow professionally.
Personal Perks: Benefit from a range of personal perks, which you can utilize as you see fit.

What you bring:

6+ years experience developing backend solutions used in production environments,
Advanced programming skills in Python,
3+ years of experience in building REST API with Flask and/or FastAPI,
3+ years of experience with GCP,
Proficiency in front-end development using Vue.js,
Experience with TypeScript for building robust and maintainable applications;
Familiarity with infrastructure as code using Terraform,
Familiarity with MQTT and/or Building Automation is a big plus,
You keep yourself informed of the latest developments in software engineering and have a passion for clean and structured code,
You have an entrepreneurial mindset, you like and are good at finding solutions, and are motivated to directly contribute to improving Thermosphr’s product and strategy,
Strong communication skills in English.

Nice to have:

Experience with or openness to AI-driven development approaches, including using AI tools to enhance code quality, accelerate development workflows, and implement innovative solutions

About the Company

Thermosphr is a revolutionary operating system for thermal management in commercial buildings. We use a unique proprietary technology, result of years of research in thermal optimization and data science, which simulates and predicts building thermal behavior. Our SaaS plugs into any BMS and optimizes heating and cooling equipment settings (HVAC) in real time for maximum energy and cost efficiency. Our solution shows savings >30% within days, at no upfront cost, with continuous improvement. We are faster, more transpar... Know more