Caspar Sillamaa Email & Phone Number

Tallinn, Harjumaa, Estonia

Developed Consumer eSIM infrastructure(SM-DP+ and SM-DS) as a part of a team of 3 software engineers, which has been certified by the overlooking authority GSMA. Consumer eSIM is a global specification by the GSMA, which enables remote SIM provisioning of any mobile device. eSIM now allows consumers to store multiple operator profiles on a device simultaneously, and switch between them remotely, though only one can be used at a time. This included:• Developing based on specifications from GSMA documents: 1) Handling registration of eSIM profiles in the SM-DP+ 2) Communication with MNO-s - setting the profiles in the SM-DP+ available to be downloaded to an eSIM 3) Communication with eSIMs - processing incoming encrypted binary data and creating encypted profile packages to send to eSIM for the profile download.• Testing and improving the developed infrastructure using third party software: LPA simulators and a functional test tool together with a physical test SIM card. Driving improvements and new version releases in the third party software by finding issues/bugs and opening tickets with the related company.• Creating an automatic script to set correct database state for incoming requsts coming from 250 different test cases from a third party functional test tool.• Setup and testing in test/pre-prod/prod environments• Performing platform demo during GSMA audit/certification process.

Tallinn, Harjumaa, Estonia

• Developing 1oT terminal(an advanced connectivity management platform that helps M(V)NOs improve service quality, streamline internal processes and reduce inefficiencies) - adding new features, improving existing features, revamping old pages, bug fixes.• Mentoring software engineering interns - Giving overview of 1oT Terminal and the codebase. Assigning and giving background on tasks, answering questions, giving pointers and doing code reviews. Giving feedback at the half stage and at the end of the internship.• Taking part and giving input in new feature review and planning meetings.• Doing code reviews for other developers.

Tallinn

Developing 1oT terminal - an advanced connectivity management platform that helps M(V)NOs improve service quality, streamline internal processes and reduce inefficiencies.