Recommended expert
Alex Shesterov
Senior-Softwareentwickler
Experience
Jan 2022 - Present
4 years 1 month Lorem ipsum dolor sit amet
Ionity
- Design, development and operation of charging and payment software
- Implementing the interaction between NFC terminals and EV chargers
- Generating and providing invoices in the invoice portal
- Technologies: Kotlin, Java, Spring Boot, PostgreSQL, Terraform, Kubernetes, Helm, SonarQube, GitLab
Nov 2018 - Oct 2019
1 year Lorem ipsum dolor sit amet
Cosi Consulting LLC
- Integrating COSI Insight software with OpenText Content Server
- Designing and implementing integration between DocuSign, OpenText and COSI Insight
- Technologies: OpenText, Java, Spring, TomEE, Maven, Mercurial, TestRail, JIRA
Oct 2018 - Dec 2021
3 years 3 months Lorem ipsum dolor sit amet
REWE Systems
- Developing accounting software including functional concepts and process modeling
- Redesigning and implementing the database
- Release management, quality assurance and audit compliance
- Technologies: Java, Spring, Spring Boot, Spring Batch, TypeScript, Angular, IBM Host, IBM DB2, Kubernetes, Helm, GitLab, JIRA, SpiraTest, SonarQube, DbUnit, PMD, Git
Aug 2018 - Sep 2018
2 months Lorem ipsum dolor sit amet
b-tix GmbH
- Creating a proof of concept in the insurance sector
- Technologies: Serverless architecture, Java, AWS, XSLT, Excel
Jul 2018 - Aug 2018
2 months Lorem ipsum dolor sit amet
NDA
- Optimizing database design and migrating data
- Technologies: Java, PostgreSQL, Excel
Aug 2017 - Aug 2018
1 year 1 month Lorem ipsum dolor sit amet
REWE Digital
- Integration of external systems in the fulfillment area and definition of interfaces
- Design, development and maintenance of microservices
- Collaboration on implementing GDPR guidelines
- Technologies: Java, Java EE, JavaScript, REST via JAX-RS, JPA, PostgreSQL, Hibernate, Spring Boot, Spring Framework, Kafka, Docker, Maven, Jenkins, Git, OAuth2, Kibana, Prometheus
Dec 2014 - Jul 2017
2 years 8 months Lorem ipsum dolor sit amet
Cosi Consulting LLC
- Pre-sales: preparation and delivery of demos and POCs
- Implementation: requirements analysis, installations and configuration on client sites
- Coordination of customer projects with the development team
- Configuration of FileNet and Documentum (security, D2, workflows, lifecycles, autolinking, forms)
- Setup of single sign-on with Kerberos/SPNEGO
- Development: Team lead (4 people), integration of COSI Insight software with IBM FileNet and OpenText Documentum, custom ECM model extensions (Documentum TBOs, FileNet custom event handlers)
- Technologies: 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
Jun 2014 - Sep 2014
4 months Lorem ipsum dolor sit amet
QR-Verity
- Independent creation of the MVP for assigning barcodes to products
- Bulk uploads, reading barcodes and validity checks
- Product and market search
- Technologies: QR codes, GTIN codes, Signal Processing, PHP, JavaScript, Memcached, MySQL, HTML5, XML, JSON, CSV
Aug 2013 - Dec 2014
1 year 5 months Lorem ipsum dolor sit amet
Smartling.com
- Java development and team lead (3 people)
- Splitting a monolith into microservices and implementing continuous delivery
- Architecture and implementation of software modules
- Reorganizing source code to optimize and improve maintainability
- Coaching the team in adopting TDD
- Technology selection and public presentations
- Technologies: AWS, Java, Spring, Hibernate, Microservices, SaaS, Docker, Maven, Bamboo, MySQL, ANTLR4, Tomcat, HTML5, JavaScript, Git, SVN
Oct 2009 - Nov 2014
5 years 2 months Lorem ipsum dolor sit amet
Vario Fashion
- Implementation of product synchronization between the webshop and e-commerce platforms (eBay, Rakuten, Allyouneed, Fyndiq, smartvie.de, markt.de, preis.de, etc.)
- Inventory synchronization with manufacturers
- SEO optimizations
- Technologies: Java, Redis, MySQL, PHP, Prestashop, Gambio, JavaScript, jQuery, HTML, XML, GoodRelations
May 2008 - Apr 2013
5 years Lorem ipsum dolor sit amet
COR&FJA AG
- Permanent position: Java, C++, Perl development and data modeling
- Design and implementation of software modules
- Reengineering of legacy modules and release management
- Database migrations
- Support customers with software deployments
- Technologies: Java, Xtend, C, C++, Perl, DB2, Maven, Jenkins, XML, XSLT, XSD, SVN
Aug 2006 - Jul 2007
1 year Lorem ipsum dolor sit amet
zeb/rolfes.shierenbeck.associates
- Junior software developer (part-time): Reengineering and porting of legacy modules
- Technologies: C, C++, Java
Aug 2006 - Mar 2007
8 months Lorem ipsum dolor sit amet
WWU
- Design, implementation and administration of the student database for the language center at WWU Münster (part-time)
- Technologies: FileMaker Pro, Java, HTML
Jul 2005 - Oct 2007
2 years 4 months Lorem ipsum dolor sit amet
SFB MoBil, WWU
- Implementation of molecular cardiovascular imaging in the MoBil collaborative research center at WWU Münster and Siemens
- Implementation of complex mathematical algorithms in Matlab and C (Optical Flow, 3D reconstruction from PET scanner data)
- Optimization for real-time processing and 3D visualization of patient data
- Design of the patient database
- Technologies: Matlab, Java, C, C++, OpenGL, MySQL
Skills
Roles / Experience
- Software Architecture
- Software Development
- Test Automation
- It Consulting
- Pre-sales
- Leading Customer Projects (Requirements Analysis, Implementation)
- Customer Training
- Release Management
- Leading Small Teams (Up To 5 People)
- Coaching/mentoring
- Database Design
- Migrations
- Experience With Agile
- Industry Expertise: E-mobility, Retail, E-commerce, Accounting, Banking, Insurance
Expertise / Technologies
- Backend: Kotlin, Ktor, Java (Up To 22), Php (Up To 7.2), Spring, Spring Boot, Spring Batch, Hibernate, Axis2, Jdbc, Liquibase, Flyway, Apache Poi, Bouncy Castle, Guava
- Frontend: Vue.js, Angular, Javascript, Typescript, Html, Css
- Other Programming Languages: C++, C, Perl, Matlab, X86 Assembly, Lisp, Bash, Prolog
- Virtualization/cloud: Terraform, Kubernetes, Helm, Docker, Aws (Lambda, Api Gateway, S3, Cloudwatch, Cloudfront, Iam, Cognito, Cloudformation)
- Databases: Postgresql, Mysql, Mariadb, Ibm Db2, Mongodb, Dynamodb, Redis, Memcached, Ibm Filenet, Opentext Cs, Opentext Documentum, Cmis
- Web: Http, Rest, Webservices/soap, Cdns, Semantic Web, Schema.org, Goodrelations, Microformats
- Build/vcs/ci/cd: Gitlab, Jenkins, Bamboo, Teamcity, Bitbucket Pipelines, Travis Ci, Gradle, Maven, Git, Nexus, Artifactory
- Streaming/messaging: Kafka, Rabbitmq, Jms
- Architecture: Hex, Reactive, Domain-driven Design, Microservices, Serverless
- Qa: Loadrunner, Spiratest, Testrail, Junit (Up To 5), Spock, Dbunit, Archunit, Mockito, Mockk, Powermock, Sonarqube, Jacoco
- Security: Oauth2, Hashing, Encryption (Symmetric And Asymmetric), Various Attacks And Countermeasures, Owasp
- Logs/metrics: Slf4j, Logback, Log4j, Logstash, Kibana, Prometheus
- Other: Antlr4, Compression Algorithms, File Formats (Esp. Office And Image Formats), Pattern Recognition/ocr, Neural Networks
Languages
Russian
NativeUkrainian
NativeGerman
AdvancedEnglish
AdvancedSpanish
IntermediateEducation
Oct 2003 - Jun 2008
University of Münster
M.Sc. in Computer Science, minor in Mathematics · Computer Science · Münster, Germany · very good (1.5)
Oct 1999 - Jun 2001
Oles Honchar National University Dnipro
B.Sc. in Computer Science, minor in Business Administration · Computer Science · Dnipro, Ukraine · very good
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