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work experience portfolio

Asset Management Platform for Electrical Power Company

Oracle
Java
J2EE
ADF
WebLogic
Node.js
Angular
MongoDB
Android SDK
JasperReports
Enterprise system aimed to help in the process of planning preventive, regular and emergency asset maintenance. It is designed primarily for big businesses Technicians and managers can define the Technical Database where asset elements can be structured in hierarchical manner. Main functionalities are: budget planning and tracking, resource coordination and planning, work order issuing, third party contracts and orders tracking. The part of this platform is offline ready field application used for work order task updates, filling out checklists, taking signatures from clients, pictures and audio data.

Multifunctional Maintenance Platform

JavaScript
Typescript
Angular
Meteor
Mongo DB
Android
Node.js
NGINX
JasperReports
GCP
Kubernetes
Platform provides a way of following the best practices in maintenance industry introducing time-saving features for managing and scheduling tasks that leads to cost and time reductions. It can be used both for small and big businesses. Small businesses can use it as CRM while integration with ERP and other CRMs is available for big businesses. Platform has many distribution types and can be used in different business areas, such as Asset Management and Maintenance (CMMS), Ticketing System, Meeting Task Management, Facility Management, Invoice Approval System, and Task Management System in general.

Billing System for Electrical Power Company

Oracle
Oracle Application Server
ADF
Java
J2EE
EJB
JasperReports
System for measurement, calculation and collection for Electrical Power company. It contains modules for calculating regular and unauthorized consumption. An integral part of the system is an advanced mechanism for the collection of claims through the process of warning, suspension of delivery and enforced collection (court proceedings). The system is integrated with internal (AMR, ERP...) and external information systems (banks, post office, payment processors...). Communication with customers has been achieved through the CRM module with the ability to review invoices, submit complaints and online payment.

Unique complaint reporting portal for Electrical Power Company

JavaScript
Angular
REST API
MongoDB
Android
System for unified process of receiving and resolving complaints for consumers for Electrical Power company. The system enables monitoring of the duration of complaints and measuring the efficiency of the complaint process, in order to reduce the time and costs for employees. It contributes to better and faster communication with consumers, reducing the time for reporting complaints and increasing consumer satisfaction.

Customer Master Data Management for Electrical Power Company

Oracle
GoldenGate
ODI
EDQ
Creating a consolidated and integrated unique customer database. The database contains complete information about customers enabling the creation of the reporting system that will include information of the current energy consumption and financial balance of the customer.

Payment Gateway

Golang
PostgreSQL
Angular
Design and implementation of Payment Gateway REST API, Public Frontend and Backend Portal. Gateway provides a way to choose one of the payment methods for which the payment provider route is found in the background in order to receive or send funds. Routes are configured via Backend Portal app. Some of the payment methods for example are: PayPal Account and Bank Card while payment provider integrations may be with Paysafe, Stripe, etc. Router is made in a way that new payment providers may be added easily. Client is a partner from UK in betting industry.

Loyalty Program

Golang
PostgreSQL
Kafka
Debezium
Angular
Design and implementation of microservices for Loyalty Program Module used in e-gaming and sports betting industry. Loyalty Program is part of Bonus Engine. Backend services for Loyalty Program Management and Loyalty Card Management communicate with other services such as wallet service, transaction event queues via Kafka topics. Public Frontend and Back office Frontend implemented in Angular communicate with backend services via REST API.

Responsible Gaming

Golang
PostgreSQL
Kafka
Debezium
Angular
Design and implementation of microservices for Responsible Gaming Module used in e-gaming and sports betting industry. Backend services for Responsible Gaming communicate with other services such as Player Profile service, transaction event queues via Kafka topics. Public Frontend and Back office Frontend implemented in Angular communicate with backend services via REST API.

Integrated Hospital Information System (IHIS)

Oracle
WebLogic
REST API
Java
J2EE
EJB
The purpose of this project is to develop/upgrade, integrate and install Electronic Health Record (EHR) in the context of development of Integrated Health Information System (IHIS) in Serbia. It is aligned with the different existing EHR and HIS, and in accordance with European standards. It also involves capacity building and development for hospital staff for its use and maintenance in accordance with best EU practices.

Termin3 Appointment Scheduling

Android
CouchDB
JavaScript
Node.js
Lua
Termin3 is android native application that helps freelancers and small businesses to schedule appointments in a simple, fast and reliable way. This is startup idea, owned product.

Ananas e-commerce

JavaScript
Typescript
Postgres
Strapi
GraphQL
Docker
Redis
Design and implementation of Ananas e-commerce headless CMS Backend Portal. Service APIs are exposed through the GraphQL Gateway.

Webway - ETL Cloud Platform

Typescript
React
Next.js
NestJS
Node.js
MongoDB (Atlas)
Docker
Kubernetes
AWS (Microservices)
Design and implementation of ETL platform (Data Integration) which integrate software platforms throw APIs. The platform is based on microservices architecture. Scalable. Ready for data integration and synchronization via API endpoints.