Andres Talavera

Senior .NET Techlead and Trainer

Salary / Daily rate

Lyon, France

Mobility: Paris, Fribourg, ...

Freelance

Can come onsite

Skills

ReactAzureVue.NET MAUIXamarinReact NativeGitHubDomain Driven DesignTest Driven DevelopmentJavascriptMicroservicesC#SQL QueriesHTML

Languages

French (Native)Spanish (Native)English (Fluent)German

About me

Intro

Freelance .NET Tech Lead with 8+ years expertise in cloud architecture and team leadership. Successfully led teams of up to 5 developers, implementing microservices and Azure solutions across healthcare, logistics, and enterprise sectors. Specialize in .NET 9, Azure cloud infrastructure, and modern architectures (DDD/TDD) with proven ability to migrate legacy systems, enhance security, and train development teams for scalable, high-performance applications.

Links

Work experience

Founder - freelance .NET developer, techlead and trainer

IdeaStudio

May 2017 - Present

9 years 6 months

Paris Area, France

– Develop innovative mobile and web applications for various industries using the latest Microsoft technologies, particularly cloud-based applications. – Take on new challenges and stay updated with the evolving tech landscape. – Share knowledge through training centers and blogs focusing on cloud computing and software architecture. – Demonstrate commitment to continuous learning, adaptability, and passion for sharing tech knowledge.

.NET Developer

MedTech Europe

Sep 2024 - May 2025

9 months

Remote

– Involved in developing multiple portals for various entities to collect data from laboratories and publish statistics. – Conducted analysis, designed the architecture, implemented unit tests, developed new features, and integrated with Azure Entra for enhanced security. – Developed a new project from scratch, ensuring scalability and performance. – Maintained two existing projects, analyzing their structure and functionality. – Improved the clean architecture to ensure maintainability and scalability. – Added unit tests to ensure the reliability and stability of the software. – Implemented new features to enhance functionality and user experience. – Implemented strict security rules to protect sensitive data. – Integrated with Azure Entra for secure authentication and authorization.

.NET Developer

TRIGO

Feb 2024 - Jun 2024

5 months

Lyon, France

– Developed new features for an ASP.NET Framework (MVC4) application and support migrations to .NET, Vue, and Azure. – Conducted comprehensive analysis, implemented unit tests, developed key features, and shared knowledge with team members. – Assisted in the migration of applications to Azure, leveraging Azure WebApp and Azure Functions for efficient and scalable solutions. – Conducted thorough analysis of existing projects. – Conducted a comprehensive analysis of existing projects to understand their structures and functionalities. – Implemented unit tests to ensure the reliability and stability of the software. – Developed several key features on the WebApp, enhancing its functionality and user experience. – Performed analysis of the mobile app to understand its structure and functionality. – Developed Vue3 components, contributing to the modernisation of the application. – Shared knowledge and expertise with team members, fostering a collaborative and learning-oriented environment. – Assisted in the migration of applications to Azure, leveraging Azure WebApp and Azure Functions for efficient and scalable solutions. – Collaborated with the team to troubleshoot and resolve technical issues. – Participated in code reviews to maintain high-quality code. – Worked closely with stakeholders to understand their needs and translate them into technical requirements. – Stayed up-to-date with the latest industry trends and technologies, and applied this knowledge to my work.

Techlead

Active Assurances

Aug 2023 - Feb 2024

7 months

Paris, France

– Improved internal processes and redesigned some projects performing .NET migrations, security updates, or some automations. – Implemented a new project from scratch, fully replacing the entire Information System. – Led a team of up to 5 developers. – Managed the team, conducted analysis, improved delivery processes, implemented unit tests, enhanced CI/CD pipelines, developed key features, trained developers, handled Azure subscription migration, improved application security, and implemented a database migration system. – Conducted analysis of existing projects to identify areas for improvement. – Improved the delivery process and organised git repositories. – Enhanced CI/CD pipelines for better efficiency. – Developed several key features for the new system. – Trained developers on new technologies and best practices. – Handled Azure subscription migration and FinOps. – Improved application security and upgraded certain projects to .NET 8. – Implemented a database migration system to replicate data across different environments. – Worked in collaboration with a team of 15 members at Key Consulting, fostering a productive and supportive work environment.

.NET Developer

The Adecco Group

Apr 2022 - Apr 2023

1 year 1 month

Lyon, France

– Worked on multiple projects, the main project being a worldwide data synchronization system. – Conducted functional analysis, developed applications and services, handled migrations from .NET Core 3 to .NET 6, managed deployment, and conducted research and development on Azure Managed Identities, Azure RBAC, etc. – Conducted functional analysis and analysis of existing developments. – Developed applications and services for multiple internal products. – Handled migrations from .net core3 to .net6 and performed refactoring. – Managed deployment and provided support. – Conducted research and development on Azure Managed Identities, Azure RBAC, etc.

.NET Developer

Sage

Oct 2021 - Feb 2022

5 months

Remote

– Involved in developing and improving new features for software solutions. – Conducted functional analysis, developed APIs and micro-services, developed unit tests, and contributed to the development of a project from scratch, implementing onion architecture and unit tests. – Conducted functional analysis and analysis of existing developments and architectures (onion/hexagonal). – Developed APIs and micro-services. – Developed unit tests and conducted research and development. – Contributed to the development of a project from scratch (implementation of onion architecture, unit tests, etc.).

Mobile Application Developer

Hager

Aug 2021 - Oct 2021

3 months

Obernai, France

– Developed an application that uses an existing AI to find spare parts. – Performed functional analysis, connected Xamarin.Forms to ONNX files to integrate developed AI, connected to several Azure services, and prepared packages and pipelines for deployment. – Performed functional analysis. – Connected Xamarin.Forms to ONNX files to integrate developed IA. – Connected to several Azure services. – Prepared packages and pipelines for deployment.

.NET Developer

ALTEVA

Apr 2021 - Jun 2021

3 months

Remote

– Involved in developing and improving new features for their software solutions. – Conducted functional analysis, engaged in research and development, realized several Proof of Concepts (PoCs), provided training to teams, contributed to CD/CI pipelines, and developed unit tests. – Conducted functional analysis to understand the requirements and specifications of the software. – Engaged in research and development to explore new technologies and methodologies. – Realised several Proof of Concepts (PoCs) to validate the feasibility of solutions. – Provided training to teams, enhancing their .NET skills and knowledge. – Made contributions to the Continuous Deployment/Continuous Integration (CD/CI) pipelines, improving the efficiency of the development process. – Developed unit tests to ensure the reliability and stability of the software.

.NET and Azure Architect

Faurecia

Sep 2020 - Apr 2021

8 months

69340 Francheville, France

– Involved in developing and improving new features for their software solutions. – Conducted both technical and functional analysis, analyzed existing developments, worked on architectures, engaged in research and development, handled code migration, developed APIs and .NET applications, created NuGet packages, developed Azure Functions, and set up Azure Data Factory and Azure EventHubs. – Conducted both technical and functional analysis to understand the requirements and specifications of the projects. – Analyzed existing developments to identify areas for improvement and potential issues. – Worked on architectures (NLayered and Onion) to ensure the software is well-structured and maintainable. – Engaged in research and development to explore new technologies and methodologies. – Handled migration of code to ensure smooth transition and minimal disruption. – Developed APIs and .NET applications to meet the needs of the projects. – Created NuGet packages for efficient management and distribution of .NET packages. – Developed Azure Functions with an orchestrator to manage the execution of functions. – Set up Azure Data Factory and Azure EventHubs for data integration and real-time analytics.

.NET and Azure Architect

CHARL'ANTOINE ALSACE

Jun 2020 - Sep 2020

4 months

69340 Francheville, France

– Developed a logistics application for Charl'Antoine, Segmuller, and Ikea Grand Est, integrating GDPR compliance and enhancing security. – Conducted analysis, designed the architecture, developed tests, APIs, the mobile app, and an administration console. – Provided training and support to the team on the new technologies and best practices used in the app. – Conducted analysis of existing developments to understand the structure and functionality of the current app. – Worked closely with the customer to analyze functional needs and translate them into technical requirements. – Designed the architecture of the new app, ensuring it is scalable and maintainable. – Developed tests following the Test-Driven Development (TDD) approach to ensure the reliability and stability of the app. – Developed APIs to facilitate communication between the app and the backend systems. – Developed the mobile app, enhancing its functionality and user experience. – Developed an administration console for managing the app and monitoring its performance.

Business Analyst

Renault-Nissan-Mitsubishi

Feb 2020 - Apr 2020

3 months

92130 Issy-les-Moulineaux, France

– Conducted analysis of existing developments and worked closely with the final customer to analyze functional needs. – Held meetings with development teams and customers, wrote functional specifications in Azure DevOps, validated these with the final customer, configured Azure DevOps, reviewed code of off-shore teams, and documented differences in code and APIs specifications. – Configured Azure DevOps, reviewed code of off-shore teams, and documented differences in code and APIs specifications.

.NET and Azure Techlead

Cegid

Aug 2019 - Dec 2019

5 months

Paris Area, France

– Involved in designing the architecture of a new box, conducting PoCs, and performing functional analysis. – Worked on refactoring, implemented Azure services, coached about best practices, and participated in the development of three projects: Box, CDA, and Stream. – Designed the architecture of the new box. – Conducted PoCs about different solutions to store data, durable functions, orchestrator, centralised configuration, etc. – Performed functional analysis and analysed existing developments. – Worked on refactoring & clean code. – Implemented Azure services (Functions, Centralized configuration, App Service, etc.). – Coached about best practices: micro-services, serverless, .NET Core, design patterns (development and cloud). – Participated in the development of 3 projects: Box, CDA, Stream.

.NET and Azure Consultant

Corum

May 2019 - Aug 2019

4 months

Paris Area, France

– Involved in developing and improving new features for their software solutions. – Conducted functional analysis, engaged in research and development, realized several Proof of Concepts (PoCs), provided training to teams, contributed to CD/CI pipelines, and developed unit tests. – Conducted functional analysis to understand the requirements and specifications of the software. – Engaged in research and development to explore new technologies and methodologies. – Realized several Proof of Concepts (PoCs) to validate the feasibility of solutions. – Provided training to teams, enhancing their .NET skills and knowledge. – Made contributions to the Continuous Deployment/Continuous Integration (CD/CI) pipelines, improving the efficiency of the development process. – Developed unit tests to ensure the reliability and stability of the software.

.NET Techlead

DAVIGOLD

Oct 2018 - May 2019

8 months

Paris Area, France

– Involved in developing and improving new features for their software solutions. – Conducted analysis, developed Web APIs with Swagger and Open API, developed unit and integration tests, handled both on-premise and cloud deployment, managed the project, and coordinated with different providers. – Conducted analysis of current developments and performed functional study to understand the requirements and specifications of the software. – Developed Web APIs with Swagger and Open API. – Developed unit tests and integration tests using NUnit to ensure the reliability and stability of the software. – Handled both on-premise and cloud deployment of the application. – Managed the project, ensuring it is delivered on time and within budget. – Managed different providers, coordinating and communicating effectively to ensure smooth operations.

.NET and Azure Techlead

SPEIG

Jan 2018 - Sep 2018

9 months

Paris Area, France

– Architecture and development of a Web application (ASP.NET Core) to measure, in real time, the use of construction equipment (gasoline, duration, consumption, ...) using the power of Big Data (for COLAS Group). – Conducted functional analysis to understand the business requirements. – Engaged in research and development activities, focusing on fleet management and map components. – Performed reverse engineering of an existing application to understand its architecture and functionality. – Designed the architecture of the web application, ensuring scalability and performance. – Developed the MVC web application, APIs, and JavaScript (Bing Maps, Ajax) to meet the project requirements. – Contributed to and participated in the establishment of DevOps processes using Visual Studio Team Services/Azure DevOps. – Conducted Proof of Concepts (PoCs) on Bing Maps, Azure Maps, storage options, etc., to explore the best solutions for the project. – Coached developers to enhance their skills, fostering a culture of continuous learning and improvement within the team.

.NET Developer (WPF)

FORTIA Financial Solutions

Oct 2017 - Dec 2017

3 months

Paris Area, France

– Contributed to the development of the Innova application, a comprehensive tool designed for data management, enterprise risk management, and business process management. – Conducted functional analysis, engaged in research and development, performed reverse engineering, designed the architecture, developed the WPF application, their User Components and contributed to DevOps processes. – Application development. – Data management. – Research and development. – User experience enhancement.

.NET Developer

AFILIZA

Jun 2017 - Sep 2017

4 months

Paris Area, France

– Involved in the research and development of a web application for displaying promotion codes, enhancing the user experience and driving customer engagement. – Developed the first version of the logistics application for Charl'Antoine, developed an e-commerce site for SIEHR (lecoinsiehr.com), and developed several websites for real estate agencies. – Web application development. – Research and development. – User experience enhancement.

Business Unit Manager + .NET developer

Digit-Prime

Nov 2016 - Apr 2017

6 months

Paris Area, France

– Responsible for finding office space, seeking clients, and signing a contract with CORA. – Developed a gamification application for CORA's forklift operators. – Participated in the development of two applications for clients in Belfort and Strasbourg, and attempted to recruit collaborators. – Training and coaching. – Application development. – Research & development.

.NET Software Developer and trainer

Andrés Talavera (Freelance)

Jul 2015 - Nov 2016

1 year 5 months

69340 Francheville, France

– Conducted trainings within schools and training centers (Supinfo, NextFormation). – Developed mobile apps for kitchens delivery (Seegmuller/Charlantoine) with Novatech, dating (Circulys), social networking (check.fm) and some websites for SMEs (like Aubade). – Technologies: Windows Phone, Windows 10 Mobile, ASP.NET, HTML.

Microsoft Student Partner

Microsoft

Sep 2009 - Sep 2015

6 years 1 month

69340 Francheville, France

– Passionate about new technologies and particularly those of Microsoft, I joined the 'Microsoft Student Partner' in 2009 to share my experiences and live others with the community!

Junior Software Developer

SFEIR

Jul 2013 - Jul 2015

2 years 1 month

Schiltigheim, France

– Developed, created and deployed mobile Apps with Xamarin, web applications using ASP.net WebForms and the recently MVC5 technology. – Student, developer and Trainer. – Looked for innovation and found new solutions for clients.

Windows Phone Developer

Happly

Jan 2013 - Feb 2013

2 months

– Redeveloped an existing WinRT application (catalogue des formations Happly) on Windows Phone 7 & 8! – Ensured all features existed on smartphone and new ones emerged for adaptation (sharing, messages, ...).

Stagiaire - développeur

Sogeti

May 2012 - Jul 2012

3 months

Strasbourg Area, France

– Developed ASP.net web application with the latest version of the Framework.Net (4.5) and Visual Studio 2012. – Learned a new development architecture to increase the interoperability of applications with other platforms.

Trainee (discover the world of business)

AsysPro

Dec 2007 - Dec 2007

1 month

67400 Illkirch-Graffenstaden, France

– Discovered the world of business, Computing on business. – The team was welded!


Education

INSTA Paris

Master's degree, Génie logiciel

2013 - 2015

2 years 1 month

Lycée René Cassin

BTS Services Informatiques aux Organisations, Programmation / développeur informatique, général

2011 - 2013

2 years 1 month

Lycée Louis Couffignal / Lycée Jean Monnet / Lycée René Cassin

Secondary, Engineering / accounting + management / computing (IT + developpement)

2009 - 2011

2 years 1 month


Licenses & certifications

Astuces nano pour démarrer avec GEO et booster sa visibilité sur les moteurs IA

Issued: –

1er Niveau de formation commerciale Microsoft Online Services et Microsoft Office 2010

Issued: –

Certified by Microsoft

Optimiser son profil LinkedIn

Issued: –

Portfolio

Plateforme SaaS multi-audiences

IdeaStud.io website

Architecture of .NET internal platform

Trainer at LinkedIn

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