Kandidát

Developer

Solution for managing and enforcing parking policies. It has broad spectrum of functionalities for cities and also for individual users, like buying various types of parking cards (parking permits), buying tickets for particular parking lot, reporting, showing parking lot occupancy, reporting parking violations, etc. It also provides mobile apps for both Android and iOS as well as web portal. Solution is multi-tenant and it leverages event driven micro-service architecture with many micro-services. It runs in Azure inside Kubernetes. My responsibility was to implement change requests and new features, which often times spanned multiple micro-services.

Responsibilities – Design and implementation.

Java Developer

Project Tasks manager, (2022-2023)

Component, which could store groups of tasks which should be executed on various assets with various inputs and run them when requested. Tasks were implemented as separate micro services and tasks manager could run them with various concurrency configurations. It has also checked if caller had permissions for different actions which could be done with tasks (execute, create, read, ...). Web layer providing ability to search and filter tasks groups was also available. My responsibility was to design and implement whole solution.

Responsibilities

– Design and implementation.

Experience with – Java, Spring Boot, JPA, Hibernate, Liquibase, Kubernetes, Azure.

Project Controller for 4G and 5G radio units, (2018-2022)

Components which was part of bigger closed-loop system for managing and controlling 4G and 5G radios. These components executes various configuration changes on radio units from different vendors, based on vendor agnostic input. Inputs were received on northbound from message queue and transformed output was sent to various network management systems on southbound. My main responsibility was to communicate with customer, design based on requirements and actual implementation of components.

Responsibilities

– Communication with customer, design and implementation.

Experience with – Java, Apache Karaf, REST, SOAP.

Project Pre-sales activities, (2021-2022)

I was part of several pre-sale activities, where my responsibility with a team was to communicate with potential customer, discuss their requirements and create proposal of a solution on an architecture level.

Responsibilities

– Communication with customer and design.

Project Network management solution, (2021-2022)

Solution for managing networks (e.g. in data centers) based on micro-service architecture. My responsibility with a team was to develop several micro services, which were mainly on the lower layers of the stack (closer to the devices) and which were responsible for running various automated workflows defined by upper layers.

Responsibilities

– Design and implementation.

Experience with – Java, Spring Boot, REST, Netflix's Conductor, Docker, Docker Compose.

Project ONAP’s SDN-C on lighty.io, (2018)

Demo, where I replaced ODL with lighty.io in ONAP's SDN-C component. My main job was to migrate SDN-C code from OSGi based ODL to lighty.io. I also had to edit deploy scripts to replace original SDN-C container with new one based on lighty.io and measure several metrics like startup time and memory usage.

Responsibilities

– Implementation, presentation

Experience with – Java, Docker, Docker Compose, OSGi.

Software Developer

Project Credit register, http:\\www.crif.sk (2013 - 2014) customer – CRIF - Slovak Credit Bureau, s. r. o.

Webportal for assessing client’s credit worthiness and risk of repayment default. The clients are physical individuals and this register is used by financial institutions in the banking and non-banking sectors. I was responsible for web part of the project, specializing in authentication, authorization, web service integration, localization and input data processing.

Responsibilities

– Design and implementation.

Experience with – C#, ASP.Net 4.5, MVC5, Bootstrap 3.0, JQuery, JavaScript.

Project Data mining tool, http:\\www.coraplex.sk (2013) customer – Lexika s.r.o.

I designed and implemented a solution, which mirrors data from ”Google play” store. Java crawlers, running in parallel and 24/7, are used to browse the Google store database and archive store meta-data. I built a Java application, which decompiles and analyzes mobile app’s binary file.

Responsibilities

– Design and implementation.

Experience with – Java, MySQL, Google Protocol Buffers, Bash

Project Apple Enterprise Partner Feed Importer, http:\\www.coraplex.sk (2013) customer – Lexika s.r.o.

I designed and implemented an application to import Apple EPF data. Using customer’s access to Apple Enterprise Partner Feed Program, I’ve designed DB structure capable of storing EPF data and written script which perform data import.

Responsibilities

– Design and implementation.

Experience with – My SQL, Bash