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Mykhaylo Khazanovych

Lead Developer Backend, Frontend, BPMN / Administrator

Mykhaylo Khazanovych
Augsburg, Germany

Experience

May 2025 - Dec 2025
8 months

Lead Developer Backend, Frontend, BPMN / Administrator

Customs Office, Digital Department

  • Developed backend, frontend, and BPMN processes in the Atlas Centralised Clearance for Import project
  • Defined and implemented REST, JMS, and SOAP endpoints
  • Implemented database access with JPA
  • Built BPMN processes with Camunda
  • Frontend implementation with React
  • Configured JBoss via CLI
  • Conducted code reviews
  • Participated in Communities of Practice for developers and architects
  • Implemented frontend-backend communication with WebSockets
Jul 2024 - Jun 2025
1 year

Lead Developer / Site Reliability Engineer

Federal Office for Migration and Refugees

  • Developed a digital file management system as microservices with Java 17
  • Built REST services, accessed MongoDB and GridFS with Spring Data
  • Deployed and administered on OpenShift using Kustomize, Helm, ArgoCD, and Flux
  • Used Open Policy Architecture for authorization checks
  • Configured Knative with Kafka
  • Integrated with d3 ECM, S3 storage, semantic entities, and authentication/authorization systems
  • Set up CI/CD pipelines with Jenkins and Tekton
May 2024 - Jun 2024
2 months

Senior Fullstack Developer

Federal Employment Agency

  • Migrated a JEE monolith to the cloud
  • Replaced a Swing client with an Angular 17 application
  • Migrated backend from Payara Server to Payara MicroProfile
  • Built CI/CD pipelines with on-premises GitHub Actions
  • Conducted code reviews
  • Deployed on Kubernetes Ranger
Mar 2023 - Jan 2024
11 months

Lead Developer

German Pension Insurance

  • Built a design system based on Carbon with components and Storybook
  • Documented portal and frontend artifacts with UML
  • Developed a microfrontend architecture in an NX Angular monorepo
  • Developed a mailbox as a web application and integrated it into the portal
  • Created web components with Angular Elements and StencilJS
  • Developed backend services with Quarkus and Spring Boot 3
  • Integrated OAuth2 via Keycloak
  • Coached team members and conducted code reviews
  • Set up CI/CD pipelines with Tekton and GitOps on OpenShift using ArgoCD
  • Developed mock services with Node.js and Express.js
  • Built container images based on Red Hat products and Helm charts
  • Wrote unit tests with Jest and E2E tests with Playwright
  • Configured code quality checks and accessibility tests with JAWS and axe-core
Jan 2022 - Feb 2023
1 year 2 months

Solution Architect, DevOps

Rewe Systems

  • Replaced a Cobol-based order management system with Java for a retail company
  • Designed target architecture for parallel data processing
  • Implemented applications and transferred knowledge
  • Performed load testing
  • Adapted GitLab pipelines and Helm charts for Kubernetes with Rancher
  • Created proof of concept in IBM Sterling and Salesforce OMS
  • Developed a microservice for HBase API on MapR DB in Kubernetes
  • Modeled with UML and conducted enterprise architecture analysis
Nov 2021 - Dec 2022
1 year 2 months

Software developer in the SAP Forme team

SAP

  • Developed an asynchronous backend with Java, Vert.x and Hazelcast
  • Database access on MongoDB and SAP HANA
  • Integrated with SAP C4S Data Warehouse
  • Implemented REST services with OData
  • Migrated from Cloud Foundry to Kyma (SAP BTP Kubernetes)
  • Implemented sharding for large data blocks in MongoDB and OData model management in the shared memory cluster
Jan 2020 - Oct 2021
1 year 10 months

Lead developer, team architect, security officer

Bundesagentur für Arbeit

  • Developed, administered and secured a rule-based online communication application
  • Migrated from WebLogic/DC-OS to Rancher/Kubernetes
  • Maintained Jenkins pipelines and created Docker images
  • Implemented web interfaces and communication via SMTP, Kafka, REST and SOAP
  • Asynchronous message processing with S3, MinIO and Postfix
  • Configuration tool for sending rules and archive data transfer
  • Used StencilJS and ReactJS
  • Pipelines for machine learning document processing with Python
  • Migrated microservices to Kubernetes
Jun 2019 - Dec 2019
7 months

Solution architect / DevLead / DataOps

Deutsche Bahn

  • Designed and implemented a data warehouse and ETL jobs
  • Populated a data lake based on Cloudera (Hadoop/HDFS) and Amazon S3
  • Provided company KPIs as data marts
  • Exposed KPIs via a REST API in OpenShift with OAuth2/OpenID Connect
  • Introduced Data Vault 2 and business intelligence with Qlik Sense and QlikView
  • Integrated BI graphics into a portal with Vue.js
Jul 2018 - May 2019
11 months

Solution architect / DevLead / DevOps

Lufthansa AirPlus Servicekarten GmbH

  • Designed, implemented, tested and operated a payment system for card payments
  • Interfaces to SAP and CRM Dynamics
  • Built a Kafka test cluster in Azure Kubernetes Service
  • Created Helm charts for Kafka REST
  • Jenkins job configuration and DWH integration
  • Security with Azure Active Directory, OAuth2/OpenID Connect
  • GUI implementation with Angular
Nov 2017 - Jun 2018
8 months

Solution architect / DevLead / DevOps

Ing-DiBa

  • Built a scalable big data infrastructure
  • Developed components for rule-based sending of push notifications over Kafka
  • Developed batch and real-time processing pipelines
  • Designed and implemented self-contained systems and microservices
  • Implemented business processes in a business rule engine
Aug 2016 - Oct 2017
1 year 3 months

Dev Lead / Solution Architect, Technical Team Lead

Bundesagentur für Arbeit

  • Development of a portal application with SOAP Web Services (JAX-WS) and REST backend (Spring Boot)
  • GUI development with ADF and Angular 2
  • Component library with Angular 2
  • Search migration to Elasticsearch
  • Architecture documentation and effort estimation
  • Security solutions against code injection and session forging
  • Coaching juniors, code reviews, and participation in the architecture board
Oct 2013 - Jun 2016
2 years 9 months

Solution Architect / Operations Architect

Commerzfinanz

  • Administration and operation of JEE banking systems on RedHat Linux
  • Packaging, deployment, and configuration of high-availability environments
  • Monitoring, performance optimization, and error analysis
  • 2nd/3rd-level support and release management tools (Eclipse RCP)
  • Development of automation web applications and batch jobs with Pentaho and Talend
  • Scrum development of various JEE banking systems
Aug 2013 - Sep 2013
2 months

Solution Architect

T-Systems

  • Implementation of a connected car system for travel information distribution
  • Integration with GIS providers Nokia and MapQuest
  • Route deviation calculation and performance optimization
  • JSP web pages and technical concepts for security and interfaces
Jun 2013 - Jul 2013
2 months

Senior Frontend Developer

Conrad Elektronics

  • Implementation of web interfaces and Selenium tests for CQ5.6 shop
  • Setup of a new e-commerce platform based on CQ5
Apr 2012 - May 2013
1 year 2 months

DevOp

Gruner und Jahr

  • Implementation of a DAM system based on CQ5
  • JSP pages and workflows, integration tests with Selenium
  • CI process monitoring in Jenkins, setup of integration and demo environments
Jan 2012 - Jul 2012
7 months

Solution Architect

Commscope

  • Design and implementation of features to control mobile network repeaters
  • VPN communication support
  • JSP, Tomcat, RMI, JDBC and OpenVPN integration
Jul 2011 - Dec 2011
6 months

ESB and Backend Consultant

Payback

  • Development of scalable data exchange and clearing
  • Framework for generating test classes
  • ESB integration with Mule, WebLogic, JSF, EJB3 and JPA/Hibernate
Apr 2010 - Jun 2011
1 year 3 months

Senior Backend Developer, Security/DRM Analyst

Deutsche Telekom

  • Development of an online shop and product information system
  • Java web services (CXF, REST), JPA2, Hibernate and Spring
  • Scalable file storage and DRM with Adobe Content Server
  • RDF/Sesam/SPARQL integration
Sep 2009 - Mar 2010
7 months

Dev Lead / Solution Architect, Technical Team Lead

Deutsche Telekom

  • Reengineering a business process engine in a 25-member JEE project
  • Web development, interface design and refactoring
  • Coaching, effort estimation and installation scripts
Apr 2009 - Aug 2009
5 months

Metasearch Application Developer

Unnamed

  • Further development of a metasearch application with Java, Swing, Spring and Hibernate
  • Design and implementation according to V-Model XT
Aug 2008 - Mar 2009
8 months

Developer

NCR

  • Further development, bug fixing and support of retail client/server software
  • Java, JPOS, Swing, Hibernate, Spring and Tomcat
  • Configuration management, Bash/Ant scripts and Maven migration
Feb 2008 - Jul 2008
6 months

Developer

VSA

  • Development of a J2EE system for pharmacies
  • Web service interfaces for orders and availability inquiries
  • MDA-based implementation
Jan 2008 - Jan 2008
1 month

Metasearch Rich-Client Developer

Unnamed

  • Independent development of a metasearch application with NetBeans, Swing and HSQLDB
Jun 2007 - Dec 2007
7 months

Developer

Loyalty-Partner

  • Development of a shop for reward sales using Payback points
  • UML design with MagicDraw and code generation with AndroMDA
  • Hibernate data access and EJB session beans
Apr 2007 - Jun 2007
3 months

Developer

Abitero Web Reisen

  • Development of a travel review and booking web application with Appfuse, Spring MVC and Hibernate
Dec 2006 - Mar 2007
4 months

Developer

Consol GmbH

  • Development of an EAI system for prepaid telecommunications providers
  • Tibco Business Works, JMS and Web Services integration
Jun 2006 - Nov 2006
6 months

Developer

Consol GmbH

  • System development for managing phone numbers for mobile providers
  • JMS, XMLBeans, Castor and migration jobs for Oracle
Mar 2006 - May 2006
3 months

Developer

gintec.com

  • Specification and partial implementation of middleware for DVB receivers with MHP
  • Linux Embedded, DVB API and C++
Dec 2003 - Feb 2006
2 years 3 months

Developer

Igel Technology

  • Development and integration of thin client software on Windows CE and XP
  • Bootloader development in C/assembly and BSP customizations
  • Reverse engineering tools and multilingual keyboard drivers
Nov 2003 - Dec 2003
2 months

Solution Architect

Conject AG

  • Conversion of an SAP GUI Scripting-based interface to a newer version
Oct 2001 - Aug 2003
1 year 11 months

Software Designer and Administrator

SIP GmbH

  • Design and further development of the Invention Navigator for patent work
  • Image-to-text conversion with OCR control and TIFF conversion
  • Full-text indexing with Jakarta Lucene
  • Integration of web modules for patent downloads
Apr 2001 - Aug 2001
5 months

Developer

PP-Active AG

  • JSP/Servlet development for closed user group trade fair portals
  • Applet development for Compaq partner support
Jul 1998 - Mar 2001
2 years 9 months

Developer

CPU AG

  • Module development for consumer credit and home savings contracts (C++, Java)
  • GUI development and database access (Oracle, DB2)
  • Financial math modules and CORBA test projects
Oct 1996 - Oct 1997
1 year 1 month

Doctoral project

Institut für mathematische Maschinen und Systeme, Kiew

  • Development of a voice recognition system with C++ and Delphi
  • Application of Fourier transform, spectral analysis, Gaussian distributions and HMM

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (8.5 years), Banking and Finance (7 years), Government and Administration (5.5 years), Telecommunication (3.5 years), Retail (2 years), and Insurance (1 year).

Information Technology
Banking and Finance
Government and Administration
Telecommunication
Retail
Insurance

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (27.5 years), Product Development (13.5 years), Operations (2.5 years), Business Intelligence (1 year), and Research and Development (1 year).

Information Technology
Product Development
Operations
Business Intelligence
Research and Development

Skills

  • Architecture

  • Kubernetes

  • Big Data

  • Devops

  • Angular 15

  • Rest

  • Operations

  • Dwh

  • Conceptual Design

  • Cms

  • Soa

  • J2ee

  • Distributed Systems

  • Team Leadership

  • Devops

  • Architect

  • Fullstack

  • Cloud

  • Jee

  • Machine Learning

  • Statistics

  • Java

  • Python

  • Angular

  • Javascript

  • Sql

  • Typescript

  • Front-end

  • Data Engineering

  • C++

Languages

Russian
Native
Ukrainian
Native
German
Advanced
English
Advanced

Education

Kyiv University

Diploma in Mathematics · Mathematics, Probability Theory and Mathematical Statistics · Kyiv, Ukraine · Grade 1 for thesis, Grade 2 for state exam

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Mykhaylo based?

Mykhaylo is based in Augsburg, Germany.

What languages does Mykhaylo speak?

Mykhaylo speaks the following languages: Russian (Native), Ukrainian (Native), German (Advanced), English (Advanced).

How many years of experience does Mykhaylo have?

Mykhaylo has at least 28 years of experience. During this time, Mykhaylo has worked in at least 21 different roles and for 30 different companies. The average length of individual experience is 1 year and 10 months. Note that Mykhaylo may not have shared all experience and actually has more experience.

What roles would Mykhaylo be best suited for?

Based on recent experience, Mykhaylo would be well-suited for roles such as: Lead Developer Backend, Frontend, BPMN / Administrator, Lead Developer / Site Reliability Engineer, Senior Fullstack Developer.

What is Mykhaylo's latest experience?

Mykhaylo's most recent position is Lead Developer Backend, Frontend, BPMN / Administrator at Customs Office, Digital Department.

What companies has Mykhaylo worked for in recent years?

In recent years, Mykhaylo has worked for Customs Office, Digital Department, Federal Office for Migration and Refugees, Federal Employment Agency, German Pension Insurance, and Rewe Systems.

Which industries is Mykhaylo most experienced in?

Mykhaylo is most experienced in industries like Information Technology (IT), Banking and Finance, and Government and Public Administration. Mykhaylo also has some experience in Telecommunication, Retail, Media, and Entertainment and Publishing.

Which business areas is Mykhaylo most experienced in?

Mykhaylo is most experienced in business areas like Information Technology (IT), Product Development, and Operations. Mykhaylo also has some experience in Business Intelligence, Research and Development (R&D), and Quality Assurance (QA).

Which industries has Mykhaylo worked in recently?

Mykhaylo has recently worked in industries like Government and Public Administration, Retail, and Information Technology (IT).

Which business areas has Mykhaylo worked in recently?

Mykhaylo has recently worked in business areas like Information Technology (IT) and Product Development.

What is Mykhaylo's education?

Mykhaylo attended Kyiv University for Mathematics, Probability Theory and Mathematical Statistics.

What is the availability of Mykhaylo?

Mykhaylo is immediately available full-time for suitable projects.

What is the rate of Mykhaylo?

Mykhaylo's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Mykhaylo?

To hire Mykhaylo, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
500
250
Market avg: 820-980 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.