Ulysse Tassidis

Software Engineer working in Paris

Email - Github - LinkedIn - CV

Experience

Lead Dev C# / Angular @ WEDA (VIDAL Group)

May 2025 • Now - Issy-les-Moulineaux, France (Hybrid)

Lead Dev for the “Medical” feature team managing 4 senior developers (2 internal, 2 contractors) working on healthcare messaging solutions integrated into Weda’s electronic health record software used by 20% of general practitioners in France. Brought structure and technical leadership to a previously autonomous team, establishing unified development standards and architectural vision.

Responsibilities include:

Technologies: .NET Framework/.NET 8, Angular, SQL Server, Azure DevOps, Docker, Kubernetes, RabbitMQ, Redis, Grafana, Prometheus, Sentry, Graylog for production monitoring.

Lead Dev C# / Angular @ Bouygues Telecom

`November 2022 • April 2025 - Paris, France

Led a team of five developers to build full-stack applications within a microservices architecture, focusing on network performance and large-scale data challenges. Aggregated data from France’s 2G, 3G, 4G, and 5G networks to calculate KPIs and provide visualizations and alerting tools. Applied software craftsmanship principles (clean code, TDD) to ensure high-quality delivery while collaborating with product owners and stakeholders to define requirements and deliver features.

Technologies: .NET 6/8, Dapper, SQL Server, Angular 15, GitLab, Kubernetes, Grafana (Loki).

Lead Dev Mobile C# @ TEKenable Ltd (formerly Greenfinch Technology)

April 2020 • June 2022 - Dublin, Ireland - Paris, France since October 2020

Lead mobile app development projects using Xamarin.Forms for iOS, Android and Windows platforms. Manage App Store / Azure Cloud deployments, Azure DevOps (CI/CD), code reviews and onboarding processes. Participate in solution design and business analysis with clients/end users to define use cases, architecture, deployment strategy, and estimations.

JAVA/C# Software Developer @ Greenfinch Technology

July 2019 • March 2020 - Dublin, Ireland

Develop web and mobile applications using C# (.NET Core, Xamarin), Angular, Java (Spring, Hibernate) and MySQL databases. Use Github, Jira and Azure DevOps CI/CD tools for version control, issue tracking and continuous integration/delivery.

C# Software Developer @ IMEC Technologies

March 2019 • July 2019 - Dublin, Ireland

Build cross-platform mobile applications using Xamarin and web applications using ASP.NET for various clients in different industries. Set up CI/CD pipelines in Azure DevOps and use MVVM patterns to unit test the UI components.

English Teacher as Volunteer @ Lyli Association

Sep 2018 • Oct 2018 - Siem Reap, Cambodia

In the school built by the association in 2015, I taught English to children from 8 to 16 years old and raised funds for the school and students.

Project Manager Assistant @ BNP Paribas

Aug 2017 • Aug 2018 - Paris

Project Manager for a web application :

Business Analyst @ BNP Paribas

Sep 2016 • Aug 2017 - Paris

Work as a BA on the redesign program of the Operational risks IS

JAVA, Full Stack developer @ BNP Paribas

Oct 2015 • Sep 2016 - Paris

Working environment:

Internship, PHP/MySQL Developer @ Multimedia Automatique Diffusion

Jun 2015 • Aug 2015 - Paris

Participation in analysis and drafting of needs, writing technical specification details, application design and development (Symfony Framework)

Child support @ Temps Jeunes association

Jul 2014 • Aug 2014 - Paris

Organization of departure and return of children from vacations

Education

Engineer’s degree in computer science and application @ ESIEE PARIS

2015 • 2018 - Paris

3 years in a Dual apprenticeship system. Specialization in 3D Engineering with a lot of C# development with .Net and Unity framework.

Master program majoring @ Beijing Jiaotong University (BJTU)

2017 • 2018 - Beijing, China

A student exchange where I studied Chinese Mandarin and software engineering

Technical University Degree in Computer science @ University Institute of Technology MLV

2013 • 2015 - Paris

Projects

Twitter like in Python / Flask framework

Sep 2017 • Jan 2018 - project link

A Twitter-like website made with Flask (python framework), PostgreSQL, and Bootstrap. I organized with an AGILE method and GIT (you can see my dashboard here). It was made during my year in BJTU and was a success with the highest note.

Microsoft HoloLens Project / Unity C#

Sep 2016 • Jun 2017 - project link

Augmented Reality gaming Project conducted within ESIEE Paris for Artefact Event. Artefact Event has a HoloLens and wanted a gaming experience covering specific needs. The project combines QR code detection, voice recognition, environmental control (room scan), and Unity… The biggest challenges were being able to combine all the technologies and adapt to software from the HoloLens which was constantly updating. We used Git and the HoloLens community to overcome these difficulties.

Website - Empty House

Feb 2016 • Mar 2016

I made the website, from conception to deployment through design and development. Website in HTML5 / CSS3 and JQUERY with the use of the CSS framework Materialized. I learn to deploy online a website and I had to implement some code to simplify my update of the website.

Android Wi-Fi mapping application

Nov 2014 • May 2015

As part of the search for white areas in a space, we created this application to model and map the Wi-Fi signals that you receive with your Android smartphone. We did a lot of research on how to improve the algorithms and the performance of the app.

Languages & Professional Skills

Languages

Programming languages, tools & frameworks

C# JAVA Python Javascript SQL Tools
.NET Core & .NET 6 Spring Boot Flask Angular PostgreSQL Github
Xamarin Hibernate   React MongoDB Azure Cloud & DevOps
Unity Android   Nodejs MySQL Docker

MISCELLANEOUS


This website is automatically built with Jekyll and deployed on a self-hosted Kubernetes using GitOps.