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Hi, I'm James Ferreira, a passionate fullstack web developer with extensive experience in .NET, JavaScript, and SQL technologies. I've worked on various projects from developing complex business services to optimizing SQL queries and building user-friendly interfaces. With a strong focus on agile methodologies and continuous improvement, I enjoy collaborating closely with teams to deliver high-quality solutions. I have a keen interest in new technologies, sports, and mechanics, and I love discovering innovative ways to solve problems. Whether it's refining backend processes or enhancing frontend experiences, I am always eager to contribute and grow in the evolving tech landscape.…Hi, I'm James Ferreira, a passionate fullstack web developer with extensive experience in .NET, JavaScript, and SQL technologies. I've worked on various projects from developing complex business services to optimizing SQL queries and building user-friendly interfaces. With a strong focus on agile methodologies and continuous improvement, I enjoy collaborating closely with teams to deliver high-quality solutions. I have a keen interest in new technologies, sports, and mechanics, and I love discovering innovative ways to solve problems. Whether it's refining backend processes or enhancing frontend experiences, I am always eager to contribute and grow in the evolving tech landscape.

James Ferreira

Web Developer, Programmer, Developer, +2

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Hi, I'm James Ferreira, a passionate fullstack web developer with extensive experience in .NET, JavaScript, and SQL technologies. I've worked on various projects from developing complex business services to optimizing SQL queries and building user-friendly interfaces. With a strong focus on agile methodologies and continuous improvement, I enjoy collaborating closely with teams to deliver high-quality solutions. I have a keen interest in new technologies, sports, and mechanics, and I love discovering innovative ways to solve problems. Whether it's refining backend processes or enhancing frontend experiences, I am always eager to contribute and grow in the evolving tech landscape.…Hi, I'm James Ferreira, a passionate fullstack web developer with extensive experience in .NET, JavaScript, and SQL technologies. I've worked on various projects from developing complex business services to optimizing SQL queries and building user-friendly interfaces. With a strong focus on agile methodologies and continuous improvement, I enjoy collaborating closely with teams to deliver high-quality solutions. I have a keen interest in new technologies, sports, and mechanics, and I love discovering innovative ways to solve problems. Whether it's refining backend processes or enhancing frontend experiences, I am always eager to contribute and grow in the evolving tech landscape.

Available to hire

Hi, I’m James Ferreira, a passionate fullstack web developer with extensive experience in .NET, JavaScript, and SQL technologies. I’ve worked on various projects from developing complex business services to optimizing SQL queries and building user-friendly interfaces. With a strong focus on agile methodologies and continuous improvement, I enjoy collaborating closely with teams to deliver high-quality solutions.

I have a keen interest in new technologies, sports, and mechanics, and I love discovering innovative ways to solve problems. Whether it’s refining backend processes or enhancing frontend experiences, I am always eager to contribute and grow in the evolving tech landscape.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

French

Fluent

Work Experience

Développeur Web fullstack at Freelance - Nexity

March 31, 2025 - July 10, 2025

Performed .NET development including creation of business services, refactoring, exception management, and setup of complex business logic. Optimized SQL Server queries to improve performance on large data volumes. Developed and maintained vanilla JavaScript user interfaces. Managed evolution tracking with Azure DevOps, including Git branch management and CI/CD pipelines. Analyzed and resolved production incidents with robust fixes. Collaborated with business teams to gather requirements, validate features, and prioritize development. Participated in a 13-person Agile team with 3-week sprints. Utilized technologies such as C#, .NET 4, JavaScript, SQL Server, REST/SOAP APIs, Git, Azure DevOps, JIRA, and Datadog.

Chef de Projet & Développeur Full Stack - Outil de gestion de chantiers DRTO Nouvelle Aquitaine at Vinci-Construction

January 31, 2023 - July 10, 2025

Led the design and management of an internal application to centralize construction site data for the Regional Directorate of Works. Analyzed user needs, wrote functional and technical specifications, managed backlog, and coordinated project phases. Architected and implemented the frontend as a SharePoint webpart using React and TypeScript. Integrated Power BI for dynamic dashboards and reports. Oversaw full project lifecycle including analysis, development, and training sessions for user adoption. Worked autonomously within an Agile environment. Used technologies including React, TypeScript, SPFx, C# WPF, Power BI, and SharePoint Online.

Développeur Web fullstack at Hélix Développement

August 31, 2021 - July 10, 2025

Redesigned and optimized ticket management systems for technical interventions in agricultural and viticultural operations. Developed new C#/.NET functionalities for a secure extranet platform with real-time data access. Integrated and customized dynamic interfaces using KendoUI and JavaScript, improving ergonomics especially on mobile and in field conditions. Modernized internal CMS to simplify back-office content publication for farmers. Delivered tailored solutions accounting for sector-specific constraints such as limited connectivity and ease of use. Worked in a 7-person team including 2 project managers. Technologies used included C#, .NET 5, SQL Server, JavaScript, KendoUI, and Git.

Chef de Projet & Développeur at ENGIE Ineo Infracom

August 31, 2020 - July 10, 2025

Developed specific features on AppVision™, an IoT supervision hypervisor for urban infrastructure like smart parking and traffic lights. Integrated and managed IoT devices including cameras, bollards, parking sensors, and motion detectors via C#. Implemented real-time alert systems, centralized logs, and inter-system communication APIs. Created an ASP.NET Core web application for the city of Nîmes featuring cartographic visualizations using OpenStreetMap and dynamic layers for municipal agents. Collaborated in a 4-person Agile team with short customer validation cycles. Technologies included C#, .NET Framework/Core, ASP.NET Core, AppVision™, OpenStreetMap, REST APIs, and TortoiseSVN.