10/17/2025 updated

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Premium member
100 % available

Senior Java/Kotlin developer, Backend developer, software developer

Bucharest, Romania
Worldwide
B.SC. Computer Science
Bucharest, Romania
Worldwide
B.SC. Computer Science

Profile attachments

Haris-feedback-Weltbild.pdf
Haris Referenz Deutsche Bahn.pdf
Lenbenslauf-Eduard-Haris-2025.pdf

Java (Programming Language)JavaScriptApplication Programming Interfaces (APIs)Agile MethodologyAmazon Web ServicesAmazon Elastic Compute CloudAmazon S3C++ (Programming Language)Continuous IntegrationSoftware Design PatternsDesktop ComputingElasticsearchGradleGroovyHypertext Transfer Protocols (HTTP)HibernateApache POIMobile Application SoftwareJava Persistence APISpring FrameworkJUnitPostgreSQLApache MavenMongoDBMySQLMessage Queuing Telemetry Transport (MQTT)RabbitMQRedisElastic LogstashJSON Web TokenSoftware EngineeringWeb ApplicationsGoogle CloudFile Transfer Protocol (FTP)Warehouse Management SystemsSpring CloudDocker SwarmReact.jsSpring BootSpockBackendGitKotlinSalesforce HerokuAngularJSKubernetesInformation TechnologyRancherGraphQLElastic KibanaRestful ApiDockerMicroservices
Agile, AWS EC2, AWS S3, AWS, Angular, AngularJS, Maven, Apache POI, API, backend, C++, CI/CD, computers, Docker, Docker Swarm, Elasticsearch, Elastic Search, SFTP, Git, Google Cloud, Gradle, GraphQL, Groovy, Heroku, Hibernate, http requests, informatics, Computer Science, JWT, Java, JPA, Javascript, JUnit, Kibana, Kotlin, Kubernetes, Logstash, MQTT, Microservices, microservice architecture, microservice, mobile app, MongoDB, Mongo DB, MySQL, PostgreSQL, Postgres, RabbitMQ, Rancher, React, Redis, REST, REST API, Design patterns, developing software, Spock, Spring Cloud, Spring, Spring Boot, warehouse management system, web based

Languages

GermanGoodEnglishGood

Project history

Deutsche Bahn

Senior Java developer

Neue Fische Gmbh
Neue Fische Gmbh
2022: developing an online platform for a bootcamp alumni interaction
Senior Java developer using Spring Boot, AWS, PostgreSQL, Docker,
GraphQL, Algolia
Responsibilities:
- developing a stable API for the new frontend upgrade
- contributing by concept and implementation on the new talent recruiting feature

Senior Java/Kotlin developer

Weltbild DE / Heaven Solutions
Weltbild DE / Heaven Solutions
2022: developing a Product Information Management (PIM) solution for a major
German publisher and media retailer
Senior Java/Kotlin developer using Spring Boot, Kotlin, Microservices,
Reactive Streams, Mongo DB, AWS EC2, MySql, RabbitMQ, Docker, Agile
Responsibilities:
- developing stable exporters as microservices for various external clients,
responsible for receiving, transforming and sending product information over
queue systems, SFTP, HTTP etc.
- taking part into estimation meetings on new features and updates
- deploy and supervise new components into testing environments and
production

Backend developer

Esolutions Grup
Esolutions Grup
2020-2022: IOT backend for a worldwide IOT devices system + backend for
mobile app
Backend developer - Java, Kotlin, C++, MQTT, Kubernetes, Google Cloud,
Spring Boot, Postgres DB, Flyway, Elastic Search, Groovy/Spock, ELK
Responsabilities:
- refactor a monolith app into a microservice architecture
- develop a scalable system for handling mqtt commands and http requests

software developer

Callisto Systems
Worked as Full Stack Developer - Postgres DB + Java + Spring Boot +
AngularJS/Frontend

production manager

111 Film & Entertainment
Created and controlled budget plans
Performed project management activities over the entire
production cycle

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