Alex S.
Senior Software Developer
Experience
Ionity
Concept, development, and operation of the charging and payment software
Implementation of the interaction between NFC terminals and EV charging stations
Generation and delivery of invoices in the invoice portal
Kotlin
Java
Spring Boot
PostgreSQL
Terraform
Kubernetes
Helm
SonarQube
GitLab
Cosi Consulting LLC
Integration of COSI Insight software with OpenText Content Server
Design and implementation of the integration between DocuSign, OpenText, and COSI Insight
OpenText
Java
Spring
TomEE
Maven
Mercurial
TestRail
JIRA
REWE Systems
Development of the accounting software including business concepts and process modeling
Database redesign and implementation
Release management, quality assurance, and audit compliance
Java
Spring
Spring Boot
Spring Batch
TypeScript
Angular
IBM Host
IBM DB2
Kubernetes
Helm
GitLab
JIRA
SpiraTest
SonarQube
DbUnit
PMD
Git
b-tix GmbH
Created a proof of concept in the insurance sector
Serverless architecture
Java
AWS
XSLT
Excel
Optimization of database design and migration of the data
Java
PostgreSQL
Excel
REWE Digital
Integrating external systems for fulfillment and defining interfaces
Designing, developing and maintaining microservices
Assisting with the implementation of GDPR guidelines
Java
Java EE
JavaScript
REST via JAX-RS
JPA
PostgreSQL
Hibernate
Spring Boot
Spring Framework
Kafka
Docker
Maven
Jenkins
Git
OAuth2
Kibana
Prometheus
Cosi Consulting LLC
Pre-sales: preparing and delivering demos and POCs
Implementation: requirements analysis, on-site installations and configurations, coordination of customer projects
Configuration of FileNet and Documentum including security, D2, workflows, lifecycles, autolinking and forms
Setting up single sign-on with Kerberos/SPNEGO
Team lead (4 people) and integrating COSI Insight software with IBM FileNet and OpenText Documentum
Developing custom ECM model extensions (Documentum TBOs, FileNet custom event handlers)
Java
JavaEE
WebSphere
WebLogic
TomEE
Spring
C#
AWS
Documentum
IBM FileNet
CMIS
SOAP
JavaScript
Ext JS
OAuth2
Microsoft Office 365 API
Microsoft OWA
TeamCity
Maven
Mercurial
QR-Verity
Building the MVP for assigning barcodes to products, including bulk uploads, barcode scanning and validation checks
Product and market search
QR codes
GTIN codes
Signal Processing
PHP
JavaScript
Memcached
MySQL
HTML5
XML
JSON
CSV
Smartling.com
Java development and team leadership (3 people)
Splitting a monolith into microservices and implementing continuous delivery
Architecting and implementing software modules
Restructuring code to optimize and extend functionality and improve maintainability
Coaching the team on introducing TDD and selecting technologies
Public presentations
AWS
Java
Spring
Hibernate
Microservices
SaaS
Docker
Maven
Bamboo
MySQL
ANTLR4
Tomcat
HTML5
JavaScript
Git
SVN
Vario Fashion
Implementing product synchronization between the web shop and e-commerce platforms like eBay, Rakuten, Allyouneed, Fyndiq, smartvie.de, markt.de and preis.de
Synchronizing inventory with manufacturers
SEO optimizations
Java
Redis
MySQL
PHP
Prestashop
Gambio
JavaScript
jQuery
HTML
XML
GoodRelations
COR&FJA AG
Java, C++ and Perl development, data modeling, and design and implementation of software modules
Reengineering of legacy modules and release management
Database migrations and customer support for software deployments
Java
Xtend
C
C++
Perl
DB2
Maven
Jenkins
XML
XSLT
XSD
SVN
Junior Software Developer
zeb/rolfes.shierenbeck.associates
Reengineering and porting of legacy modules
C
C++
Java
WWU
Design, implementation, and administration of the student database for the WWU Münster Language Center
FileMaker Pro
Java
HTML
SFB MoBil, WWU
Implementation of complex mathematical algorithms in Matlab and C for optical flow and 3D model reconstruction from PET scanner data
Optimization for real-time processing and 3D visualization of patient data
Design of the patient database
Matlab
Java
C
C++
OpenGL
MySQL
Languages
Education
University of Münster
M.Sc. in Computer Science with a minor in Mathematics · Computer Science · Münster, Germany · Very Good (1.5)
Oles Honchar National University of Dnipro
B.Sc. in Computer Science with a minor in Business Administration · Computer Science · Dnipro, Ukraine · Very Good
Similar Freelancers
Discover other experts with similar qualifications and experience
- English
- Deutsch
2025 © FRATCH.IO GmbH. All rights reserved.