Hello! I'm Efstratios, a seasoned fullstack developer with strong proficiency in JavaScript, Python and PHP - exactly what you need for this project. Over the years, I've successfully executed numerous Odoo development tasks and implemented different customizations with brilliant precision. I am confident that my vast wealth of experience, combined with my knowledge of managing sessions by company, improving data accuracy for closing reports, and integrating different modules within the accounting system perfectly aligns with your requirements.
In addition to my adeptness with Odoo, I bring to the table a proficiency in multiple web development frameworks widely used in popular platforms. This adaptability has always allowed me to familiarize myself quickly with new technologies and helps in seamless integration across diverse platforms - ideal for integrating the expense module to the closing system as you require.
I completely understand your urgency and rest assured completing this project within 2 days won't be a problem. My commitment is to deliver comprehensive and well-documented source code along with thorough test reports validating the corrections made. Moreover, to enhance future maintenance and updating tasks, I will provide a detailed technical documentation outlining all the modifications done. So let's bring efficiency to your session management and account closing modules together!