Symfony Admin Panel Development Company Needed

I am seeking a professional development company, not an individual freelancer, with a dedicated team of at least 2-3 experienced Symfony developers. Your team will be responsible for maintaining, updating, and improving my existing Symfony-based admin panel, which is connected to a live mobile application.

Key Responsibilities:
- Upgrade Symfony version
- Implement new features
- Enhance API
- Update Symfony, fix bugs, and optimize performance

Ideal Skills and Experience:
- Proven expertise in Symfony (latest versions) with several years of experience.
- High availability and fast response times.
- Professional workflow with GitHub (version control, pull requests, code review).
- Strong communication skills with the ability to work collaboratively and provide regular progress updates.

Nice to Have:
- Experience integrating systems with mobile apps (API / REST services).
- Background in projects handling high user traffic.

Please submit:
- Relevant experience.
- Examples of previous Symfony projects.
- Details about your team composition.

I'm looking for a professional company for long-term collaboration.