freiberufler Fullstack Developer | Java / Node.js / AWS | Tech Lead auf freelance.de

Fullstack Developer | Java / Node.js / AWS | Tech Lead

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  • 22763 Hamburg
  • National
  • uk  |  de  |  en
  • 13.04.2024

Kurzvorstellung

Fullstack/backend developer using Java (Kotlin), Node.js (Typescript), Python, AWS Certified. Experience in architecture and software development since the year 2009

Qualifikationen

  • Amazon Web Services (AWS)6 J.
  • AWS
  • Backend
  • Java (allg.)3 J.
  • Kotlin
  • Node.Js6 J.
  • Python5 J.
  • React (JavaScript library)2 J.
  • Scrum1 J.
  • Terraform
  • Typescript6 J.

Projekt‐ & Berufserfahrung

Tech Lead / Fullstack Software Engineer
Dr. Ing. h.c. F. Porsche AG, Remote / Ludwigsburg
10/2021 – offen (3 Jahre, 3 Monate)
Automobilindustrie
Tätigkeitszeitraum

10/2021 – offen

Tätigkeitsbeschreibung

- Design and develop an internal Developer Portal for APIs and IdP integration
Work with: Java (jmix, Spring Boot), AWS, Terraform, Auth0

- Develop a Backoffice Web Tool to manage OAuth scopes
Work with: Java (jmix, Spring Boot), AWS, Terraform

- Support and develop a central API platform for own and 3rd party digital products
Work with: Apigee, Java(Spring Boot), Node.js (Typescript), Python, AWS (Lambda), Terraform

- Develop PorscheId Integration Page for check-in at physical locations
Work with: Typescript(Next.js), AWS

Eingesetzte Qualifikationen

Amazon Web Services (AWS), Java (allg.), Node.Js, Python, Typescript

Fullstack Software Engineer (Freelance)
Oaktree Technologies GmbH, Hamburg / Remote
12/2019 – 10/2021 (1 Jahr, 11 Monate)
IT & Entwicklung
Tätigkeitszeitraum

12/2019 – 10/2021

Tätigkeitsbeschreibung

- Design and develop from scratch a b2b platform for Products Information recognition and detection
Work with: Kotlin, Spring Boot, MongoDB, Elasticsearch, React.js (Typescript), Azure, Terraform, Python, Flask
- Product templates management tool for back office.
Work with: Low code platform Outsystems, Elasticsearch
- Develop from scratch and launching Product Information Management tool
Work with: Kotlin, Spring Boot, MongoDB, Elasticsearch, React.js (Typescript), Kubernetes

Eingesetzte Qualifikationen

Scrum, Software Architecture

Backend developer
elbstack GmbH, Hamburg / Remote
11/2019 – 1/2020 (3 Monate)
IT & Entwicklung
Tätigkeitszeitraum

11/2019 – 1/2020

Tätigkeitsbeschreibung

- CouchHub.io - rework an existing monolith system to a microservice architecture.
Work with: Node.js (Typescript), Postgres

Eingesetzte Qualifikationen

Node.Js, Representational State Transfer (REST), Typescript

Software engineer
Fielmann AG, Hamburg
5/2019 – 12/2019 (8 Monate)
IT & Entwicklung
Tätigkeitszeitraum

5/2019 – 12/2019

Tätigkeitsbeschreibung

- Development of the Product Onboarding System.
Work with: Kotlin, Spring Boot, Kafka, Kubernetes, Pimcore
- Assets optimization and delivery
Work with: Node.js, Serverless (AWS Lambda, Cloudfront)

Eingesetzte Qualifikationen

Amazon Web Services (AWS), Kotlin, Node.Js, Spring Framework

Software engineer
ABOUT YOU GmbH, Hamburg
2/2019 – 5/2019 (4 Monate)
IT & Entwicklung
Tätigkeitszeitraum

2/2019 – 5/2019

Tätigkeitsbeschreibung

- Development of CRM tool.
Work with: Node.js (Typescript), React.js

Eingesetzte Qualifikationen

Node.Js, React (JavaScript library), Typescript

Senior Backend Developer (Festanstellung)
Jimdo GmbH, Hamburg
12/2016 – 2/2019 (2 Jahre, 3 Monate)
Medienbranche
Tätigkeitszeitraum

12/2016 – 2/2019

Tätigkeitsbeschreibung

Responsible for developing and design new projects as well as support and maintains of main product of the company - Jimdo Creator.

Projects:

Dashboard - landing portal with websites selection, settings, website apps, and profile management, rewrite from scratch
Work with: Node.js (Typescript), GraphQL, Python (Flask, Django), AWS (S3)

Email, domain apps - plugins for the Dashboard to set up email forwarding/GSuite and connect external domains
Work with: Golang

GDPR compliance - a project to make the main product GDPR compliant.
Work with: PHP

Console - back-office tool for customer support, built from scratch
Work with: Python (Flask, Django), GraphQL, React.js, AWS (Kinesis, SQS, Lambda, Cloudsearch)

Chatbot - support chatbot for Jimdo Creator CMS, built from scratch
Work with: React.js

Facebook boost API - project collaboration with Facebook to integrate new API into Jimdo Creator, earlier adopters

Work with: PHP, Thrift, React.js
Notification service - microservice to notify customers about new messages, built from scratch
Work with: Node.js(ES6, Serverless), PHP, React.js, AWS (Lambda, SQS, SNS, DynamoDB, IoT)

Eingesetzte Qualifikationen

Docker, Node.Js, Python, Typescript, Amazon Web Services (AWS), Django, JavaScript-Frameworks, PHP, React (JavaScript library), Representational State Transfer (REST)

Senior PHP Developer (Festanstellung)
Goodgame Studios, Hamburg
12/2013 – 11/2016 (3 Jahre)
Soziale Einrichtungen
Tätigkeitszeitraum

12/2013 – 11/2016

Tätigkeitsbeschreibung

Development of new features and support of worldwide distributed online shop for games. Continuously improve scalability and performance of microservices.
Work with: PHP (Zend framework, Phalcon, Symfony, Codeception), Mysql, Couchbase, ElasticSearch, RabbitMQ, AWS (EC2), Chef, Git, Jenkins

Eingesetzte Qualifikationen

Mysql, PHP, Symfony, Zend Framework

Senior PHP Developer (Festanstellung)
Playtech, Kyiv
8/2012 – 11/2013 (1 Jahr, 4 Monate)
Dienstleistungsbranche
Tätigkeitszeitraum

8/2012 – 11/2013

Tätigkeitsbeschreibung

Support and development feature for Playtech Kiosk (back-office tool for small casinos).

Eingesetzte Qualifikationen

Oracle Database, PHP

Software engineer (Festanstellung)
Luxoft Ukraine, Kyiv
3/2011 – 7/2012 (1 Jahr, 5 Monate)
Medienbranche
Tätigkeitszeitraum

3/2011 – 7/2012

Tätigkeitsbeschreibung

Worked as a software engineer in outsourcing company for different projects:

Projects:

MMS (for CLX Europe) - b2b portal for highspeed processing a large number of images; preprint production of booklets, leaflets; processing of pdf documents. The system involves a large number of settings and components, access rights management for groups and users. Rewrite from scratch.
Work with: PHP (ZF1, Doctrine 2), Javascript (JQuery UI), MySQL, IIS7, Nginx

Skolkovo portal - support of social network for MBA students of the Skolkovo School of Management
Work with: PHP(Drupal 7)

Aldebaran - development of the social network for book readers. My role was to design, estimate and implement customer features. Integration with social networks. Built from scratch
Work with: PHP(Yii), Javascript(Jquery), MySQL, Apache Solr, Nginx.

IBusiness - performance optimization for online magazine IBusiness.ru
Work with: MySQL, PHP(Oxwall), Apache2.

Megapicks - development an IOS application with a backend for picking on sports games. My role was to implement RESTful API and admin panel tool. Built from scratch
Work with: PHP(Yii), Javascript(Jquery), MySQL

Eingesetzte Qualifikationen

Mysql, Apache, JavaScript, Jquery, PHP, Representational State Transfer (REST), Zend Framework

PHP developer (Festanstellung)
Master systems, Kyiv
4/2010 – 2/2011 (11 Monate)
Medienbranche
Tätigkeitszeitraum

4/2010 – 2/2011

Tätigkeitsbeschreibung

Support and development a billing system for streaming video providers as well as tooling for back-office for analytics and fraud detection.

Eingesetzte Qualifikationen

Mysql, JavaScript, PHP

Web developer (Festanstellung)
FTN Monitor Ltd, Kyiv
6/2009 – 3/2010 (10 Monate)
Soziale Einrichtungen
Tätigkeitszeitraum

6/2009 – 3/2010

Tätigkeitsbeschreibung

Development modules for a financial portal, database optimization, creating XSLT templates, writing data parsers.

Eingesetzte Qualifikationen

Mysql, PHP

Zertifikate

AWS Certified Developer – Associate
AWS
2024
Engineering Management
Filab
2023
Algorithms Specializations - Stanford Online
2021
The Professional Scrum Master I (PSM I)
2020
AWS Certified Solutions Architect - Associate
2018
Zend Certified Engineer PHP 5.3
2012

Ausbildung

Computer Science
Master Degree
2011
Kyiv, Ukraine
Computer Science
Bachelor
2009
Kyiv, Ukraine

Über mich

Master degree in Computer science
Experience in architecture and software development since the year 2009
Fullstack/backend development using Java(Kotlin), Node.js (Typescript), Python 
Strong knowledge of SQL and NoSQL databases
DDD, TDD, Design Patterns
Agile mindset and a great experience working in the Agile environment
Certified AWS Solution Architect - Associate
Certified Scrum Master
Zend Certified Engineer

Weitere Kenntnisse

Java, Node.js, Typescript, Kotlin, Python,
Spring Boot, jmix, Nest.js, Flask
AWS, Azure, Terraform
REST, OpenAPI, GraphQL, Thrift
Postgres, Mysql, MongoDB, Elasticsearch, DynamoDB, Couchbase, Redis

Persönliche Daten

Sprache
  • Ukrainisch (Muttersprache)
  • Deutsch (Fließend)
  • Englisch (Fließend)
  • Russisch (Fließend)
Reisebereitschaft
National
Arbeitserlaubnis
  • Europäische Union
  • Schweiz
  • Vereinigte Staaten von Amerika
Profilaufrufe
516
Alter
36
Berufserfahrung
15 Jahre und 6 Monate (seit 06/2009)
Projektleitung
1 Jahr

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