Sajjad Esmaeeli is a skilled Senior Software Engineer currently with CHECK24 Vergleichsportal GmbH, having joined in June 2023. Prior experience includes roles as a Back End Developer at Active-Class and Prolinkd Inc, where contributions involved enhancing code standards and database performance, as well as migrating infrastructure to AWS. Sajjad has a solid background in backend development with a focus on gaming platforms and cryptocurrency solutions, demonstrated during tenure at Top Software Group and Btex. Academic qualifications include a Master of Science in Computer Software Engineering from Mehrastan University and a Bachelor of Science in Software Engineering from Astaneh Ashrafiye Payame Noor University.