Sylvain Josserand
Verified Expert in Engineering
Python Performance Developer
Prague, Czech Republic
Toptal member since August 4, 2018
Sylvain has been working in IT for 20 years, primarily as a software developer with a strong focus on systems and networking. He has a long history of quick and successful delivery of complex projects. Sylvain's favorite stack is Python, Django, Linux, and SQL.
Portfolio
Experience
- Python - 20 years
- Linux - 18 years
- SQL - 14 years
- Django - 12 years
- Python Performance - 11 years
- Performance Analysis - 10 years
- PostgreSQL - 8 years
- Google Cloud Platform (GCP) - 5 years
Preferred Environment
Google Cloud Platform (GCP), Python, Linux
The most amazing...
...project I've worked on is a pricing engine for mutual fund assets totaling $5 trillion.
Work Experience
Back-end Developer
Parseur
- Built the API of the Parseur web application (parseur.com) using Python, Django, PostgreSQL, and Django REST Framework on Ubuntu Linux.
- Set up and maintained all the server infrastructure of Parseur.com hosted on the Google Cloud Platform using Fabric.
- Wrote technical and operational articles on the company's blog.
- Opened and documented the public RESTful API using Django REST Framework.
- Integrated Parseur for use as both an action and trigger in Zapier and Microsoft Flow.
Lead Developer
Irdeto
- Built a complete video stream tracking web application from scratch using Django and Python over AWS.
- Wrote a complete suite of unit tests for Django and Python.
- Integrated the custom Active Directory-based single sign-on (SSO) into the Django application.
- Handled system and networking operations on Amazon Web Services (AWS).
- Successfully handled communication with all stakeholders to achieve project completion ahead of time and budget.
Software Engineer
Neoxam
- Implemented a compiler targeting Python in Python with high-performance constraints.
- Profiled Python code and wrote modules in Cython and C where necessary.
- Wrote a memory-efficient parser and code generator.
- Internationalized the software to allow several languages using gettext and .po/.mo files.
- Wrote extensive unit tests to achieve 100% code coverage.
- Acquired knowledge of UCITS and other financial products.
Experience
Parseur
https://parseur.comYou can then send this information to any application that requires it.
Priceur
https://priceur.comEducation
Bachelor's Degree in Software Design
Université Joseph Fourier - Grenoble, France
University Diploma of Technology in Telecommunication and Networking
Annecy Institute of Technology - Annecy-le-Vieux, France
Certifications
PSM I (Professional Scrum Master)
scrum.org
Skills
Libraries/APIs
Stripe API
Tools
Git
Languages
Python, SQL
Frameworks
Django
Paradigms
REST, Test-driven Development (TDD)
Storage
PostgreSQL
Platforms
Linux, Google Cloud Platform (GCP)
Other
Python Performance, APIs, Performance Analysis, Profiling, Back-end, Web Development, GSM, Electronics
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
Share your needs
Choose your talent
Start your risk-free talent trial
Top talent is in high demand.
Start hiring