freiberufler Java Developer and Architect auf freelance.de

Java Developer and Architect

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  • auf Anfrage
  • 21039 Escheburg
  • auf Anfrage
  • ru  |  en  |  de
  • 23.06.2021

Kurzvorstellung

I am a Java backend Developer and system hands-on Architect.

Qualifikationen

  • Docker7 J.
  • Java (allg.)12 J.
  • Nginx4 J.
  • Postgresql11 J.
  • React (JavaScript library)4 J.
  • Representational State Transfer (REST)7 J.
  • Rich-Client7 J.
  • Spring Framework11 J.
  • SQL6 J.
  • System Architektur
  • Web Entwicklung6 J.

Projekt‐ & Berufserfahrung

Senior Java Developer
AutoFleetControl, Hamburg
11/2020 – offen (4 Jahre, 1 Monat)
Automobilindustrie
Tätigkeitszeitraum

11/2020 – offen

Tätigkeitsbeschreibung

I take part in different projects of the company as a Java developer and a consultant. My main project is a partner system integration: a proxy service connecting 3 different SOAP and REST APIs. Also, I participate in CI/CD setup, test development, code review, and architecture discussion.

Eingesetzte Qualifikationen

Java (allg.), Postgresql, React (JavaScript library), Spring Framework

Head of Engineering
Blitz Financial, Hamburg
6/2019 – 11/2019 (6 Monate)
Bauwirtschaft, Anlagen- und Schiffbau
Tätigkeitszeitraum

6/2019 – 11/2019

Tätigkeitsbeschreibung

(Java 8, Spring Boot2, PostgreSQL, JDBC/JDBI, REST API/Spring MVC, FreeMarker/Bulma, Google Cloud, GIT, Maven, Docker)

I have joined the company to lead the whole development process, plan the architecture, take part in programming and deliver MVP and future releases. As a developer, I rewrite backend from Kotlin to Java using Spring. The goal is to build working MVP to raise money for further development.

Eingesetzte Qualifikationen

Java Database Connectivity, Postgresql, Java (allg.), Spring Framework, Google Cloud, HTML5, JavaScript, Representational State Transfer (REST)

Senior Java Developer
Deposit Solutions, Hamburg
6/2018 – 8/2019 (1 Jahr, 3 Monate)
Finanzdienstleister
Tätigkeitszeitraum

6/2018 – 8/2019

Tätigkeitsbeschreibung

(Java 8, Spring Boot2, MySQL, Hibernate/JDBC, REST API/Jersey2/Spring MVC, Linux, GIT, Maven, Docker, GitLab/Jenkins)

I have joined the core team as a senior Java developer and fellow architect. I am responsible for development of new microservices and refactoring legacy code to improve performance and reduce technical debt, in a very rapidly changing business environment. Also, I take part in architecture planning.

Eingesetzte Qualifikationen

Java Database Connectivity, Mysql, Docker, Hibernate (Java), Java (allg.), Spring Framework, Representational State Transfer (REST)

Senior Java Developer
M-Tribes, Hamburg
12/2017 – 4/2019 (1 Jahr, 5 Monate)
Automobilindustrie
Tätigkeitszeitraum

12/2017 – 4/2019

Tätigkeitsbeschreibung

(Java 8, Spring Boot, REST API, Linux, GIT, Maven, Docker, Kubernetes, GitLab)

I am responsible for implementing proxy (backend-for-frontend) application between several APIs and an application for the mobility industry.

Eingesetzte Qualifikationen

Docker, Java (allg.), Spring Framework, Kubernetes, Representational State Transfer (REST)

Owner
7A Center, Hamburg
12/2017 – offen (7 Jahre)
IT & Entwicklung
Tätigkeitszeitraum

12/2017 – offen

Tätigkeitsbeschreibung

(Java 8, RichClient (SWT), Spring Boot, REST API, PostgreSQL, Redis, GIT, Maven, Docker, multiOS desktop application build)

My task is to design and develop Language Tutor Assistant for intermediate and advanced level learners. It has been planned as a multilanguage multiOS desktop and mobile application, connected to the central web portal.

Eingesetzte Qualifikationen

Postgresql, Docker, Java (allg.), Rich-Client, Spring Framework, Representational State Transfer (REST)

CTO
Kundenname anonymisiert, New York
11/2016 – 7/2018 (1 Jahr, 9 Monate)
Medienbranche
Tätigkeitszeitraum

11/2016 – 7/2018

Tätigkeitsbeschreibung

The company works on a new approach to native advertisment integration into video content. I am responsible for overall system architecture, technology choice, team and process management. Personally, I work on neural networks and other artificial intelligence algorithms.

Eingesetzte Qualifikationen

SQL, Maschinelles Lernen, Java (allg.), Web Entwicklung

Lead Systems Architect, Backend Dev Lead
Kundenname anonymisiert, St.-Petersburg
11/2012 – 11/2016 (4 Jahre, 1 Monat)
Logistikdienstleister
Tätigkeitszeitraum

11/2012 – 11/2016

Tätigkeitsbeschreibung

I am responsible for planning and building of overall system structure as well as for developing of backend modules. I lead the backend team, take part in company planning sessions, perform deployments. I develop client data adapters, then data processing and storing, then API to that data. Tasks are delegated to the team, then I fulfill code review, merge and deploy. Also, I do some math investigations in logistics area.

Eingesetzte Qualifikationen

Postgresql, SQL, Mysql, Nginx, Apache Tomcat, Java (allg.), Linux Entwicklung, Spring Framework, Web Entwicklung

Head of Development Department (Festanstellung)
Ulmart, St.-Petersburg
6/2012 – 3/2015 (2 Jahre, 10 Monate)
Handel
Tätigkeitszeitraum

6/2012 – 3/2015

Tätigkeitsbeschreibung

I lead site development activity. My task is to find and organize a team of developers, testers and administrators, to coordinate development process, to take part in development of backend part. I am responsible for site software and data architecture, code review, and deployment. As a technical leader, I accepted JBoss based replacement of former php based site, then planned and fulfilled migration to Tomcat and JGroups based cluster. I designed and developed cloud service concept (similar to Spring Cloud project).

Eingesetzte Qualifikationen

SQL, Mysql, Nginx, Apache Tomcat, Java (allg.), Web Entwicklung

Ausbildung

applied mathematics, computational methods, informational technology
Ausbildung
1996
Saint Petersburg State University, Faculty of Appl

Weitere Kenntnisse

Java Backend Systems (10 years+):
▪ Enterprise Java: architecture design, monolithe/microservices
▪ Standard Java: multithreading, high load
▪ production high-load system tuning
▪ Spring framework (Boot, IoC, Data, MVC, …)
▪ JDBC, DB (SQL, NoSQL): MySQL, PostgreSQL, Redis, Elastic/Lucene
▪ developing of distributed systems (API design, clustering, JGroups)
▪ Web Services/SOAP, Apache CXF, Jackson
▪ GIT/SVN, Maven, Nexus
▪ RUP/UML, Mantis/Jira/Redmine, MS Project, development process setup
Others:
▪ JBoss AS, JBoss Seam, 5 years+
▪ JPA/Hibernate, JMS, 3 years+
▪ SQL, 10 years+
▪ OS: UNIX/Linux, 10 years+, MS Windows
▪ Networks (tcp/ip, Cisco, border protocols, ISP maintenance), 5+ years

Persönliche Daten

Sprache
  • Russisch (Muttersprache)
  • Englisch (Fließend)
  • Deutsch (Grundkenntnisse)
Reisebereitschaft
auf Anfrage
Arbeitserlaubnis
  • Europäische Union
Home-Office
bevorzugt
Profilaufrufe
2124
Alter
50
Berufserfahrung
30 Jahre und 3 Monate (seit 08/1994)
Projektleitung
12 Jahre

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