Freelancer profile translated to English.
Back to original languageAbout Théo
👋 Who I am
I am Théo CANGEMI, a freelance software developer. I support technical teams with concrete and technical needs: creation or modernization of business tools, automation, and system integration.
I am at your disposal to study its feasibility.
🎯 I intervene in particular on
• 📡 Creation or redesign of REST APIs (C#, .NET Core, Swagger)
• 🔄 Integration of EDI flows, including on AS/400 environments (RPG Free + REST)
• ⚙️ Development of Windows services and workers to automate regular processes.
• 🗃️ Management tools: bank reconciliation, internal interfaces, dashboards.
• 🔧 Optimization and refactoring of existing software.
🧰 Mastered Stack
• Languages: C#, VB, .NET Core, .NET Framework, RPG Free
• Databases: SQL Server, DB2
• Web & APIs: REST, Swagger, HTML/CSS, JQuery, Bootstrap, Svelte JS
• Desktop applications: WPF, WinForms
• Integration: EDI, CI/CD, batch services, automation
• Ancillary tools: Seagull Bartender, SAGE 100, HMI and communication with PLCs
🧪 Project Examples
• Development of LIMS-type software (C#, .NET Core, SQL Server)
Retro-engineering of software and its database then complete rewrite.
• Redesign of EDI flows on AS/400
Implementation of a REST APIs system to replace old EDI flows with secure exchanges.
• Bank reconciliation web application (C#, NET Core)
Analyzes customer invoices and transfers to perform bank reconciliation and transform data into the format expected by the SAGE 100 accounting software.
• Windows service for automatic processing
Automation of business data imports/exports, log management, and notifications.
📅 Availability
• ✅ Short-term assignments or technical support
• ✅ 100% remote work or occasional work in Île de France
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- LANDAUER EUROPE/FORTIVE (Industrie)Software Development EngineerMEDICALSeptember 2021 - Today (4 years and 9 months)78140 Vélizy-Villacoublay, France• Work on various software and databases for the production, analysis, and monitoring of the dosimetry service in France and abroad.• Bringing the IS into compliance with new regulations: GDPR compliance, local standards, and obtaining HDS certification to enhance security and customer trust.• Development of an information management software for dosimetry laboratories (LIMS)◦ Reverse engineering from the old SQL database.◦ Design of the service architecture, the database with SQL Server, and the software solution developed in .NET Core.• Optimization of cycle times in PLC control programs (VB .NET/C#)◦ Reduction of execution times by parallelizing the retrieval of information from sensors/cameras to the HMI.• Development of a cross-platform mobile application using a microservices architecture for dosimetric monitoring of wearer doses (C#, REST APIs, Flutter, SQL SERVER/DB2).• Design and development of programs to consume/expose REST APIs from an AS/400:◦ Improve exchange security.◦ Simplify and modernize data exchange programs with partners.• Supervision and deployment of critical business applications. Including, implementation of new carriers following the relocation of a foreign subsidiary's production (REST APIs, RPG).
- OPTILIANDeveloperDIGITAL AND ITSeptember 2020 - August 2021 (11 months)92120 Montrouge, France• Writing various specifications, technical specifications, estimates, and tests.• Development and deployment of evolutions for the IKEA Voucher project (PHP, JQUERY).• Modernization of the traffic violation transfer program for a transport company to the ANTS (PHP, SYMFONY).
Recommendations
Be the first to recommend Théo
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Bachelor's and Master's in MIAGEUniversité Paris-Saclay2022License et MASTER MIAGE