Mag. Sasa Skeledzija

Working on designing and building an Audi SPR retail platform to support multi-market dealer integration. Tasks very often included implementing very strict authorization and JWT tokens handling. All projects and services are designed as Microservices, supported by Jenkins CI/CDs, Kubernetes, Jira, Confluence, Bitbucket, Grafana, Kibana, JFrog artifactory, Swagger UI, and most of tools are running on AWS. Some of technology used: Spring Boot, Docker, React, Angular, JWT, OAuth2, OIDC clients, IDPs.

Data-flow software development at European Organization for Astronomical Research. Technology used: Grails, Groovy, Gradle, Angular 5, RESTFul, SVN, Java 1.8

Development of customer specific ERP solution for my employer (fast growing and agile gas distr. and trading Company). I have participated in development and re-factoring of some legacy apps, in finance and business area. I also had team management role, leading and mentored small team of 5 junior/mid JAVA developers. This role also considers direct communication with customer, req. gathering, task distribution, and progress monitoring. Beside that I also provided JAVA/EE trainings to junior team members.

AccRE development. Job description also considered care about application performance (designed and developed solid caching system which improved application performances by 2x). I was also part of Performance Task Force team, contributing with ideas and solutions. Basic idea of this team was to improve service request response times, by improving application performances and inner-application communications.

Software design and development on application called AccRE (User Management System and Accounting). AccRE is used as a back-end solution for different clients (Android, iOS, Smart TVs, Set-top boxes, WEB, ...), developed for online streaming and purchases of different streaming video content. The application takes care of user profiles, accounts and user subscriptions.

Software Development and Project Lead on Call History and Recharging Information System (CHRISXpress). I have worked on many smaller and bigger projects, mostly development and customer specific customization. CHRISXpress is Siemens solution for TELCO operator’s customer care call centers. Mobile subscribers can track calls/SMS history, administration history, recharge history, tariff change, and also make complaints. I have also developed an improvement for CHRISXpress configuration.

Software Development and Project Lead on Ticket Mediation Service (TMS). TMS is part of ngCare application group, which are running on the Siemens Nexus platform (based on JBoss 5.1). I worked on 4 TMS projects for international companies. Similar as TMD, TMS is used as mediation application between 2 separated mobile network solutions. Job description also considered care about application performance and stability in cluster environment.

Software Development and customization on application Voucher Management System (VoMSXpress). VoMSXpress is voucher management application, used to create, encrypt, activate, deactivate, use and backup vouchers which were used by mobile TELCO operators for prepaid users. Job description also considered taking care about application performance, maintenance, source versioning, voucher encryption methods.

https://www.coursera.org/account/accomplishments/certificate/W9KKH2779ASA

http://www.specialskillsacademy.com/users/create_certificate_from_email/201511302111-3006?lipi=urn:li:page:d_flagship3_profile_view_base;9m+S36b1QcaQW5taSiQnNQ==