I hope this proposal finds you well. My name is [Your Name], and I am a seasoned software developer and modeler specializing in formal methods and big data technologies, with a particular focus on Event-B and Apache Spark. I understand that you are seeking expertise in Event-B modeling and Spark for developing reliable and efficient systems. With over [5 years] of experience in these technologies, I am confident in my ability to deliver high-quality, robust solutions tailored to meet your project's requirements.