Mykhaylo Khazanovych - Lead Backend, Frontend and BPMN Dev

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Augsburg, Germany

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Experience

May 2025 - Aug 2026

1 year 4 months

Lead Developer Backend, Frontend, BPMN / Administrator

Main Customs Office, Department for Digital Affairs

Development of backend, frontend, and BPMN processes in the Atlas Centralised Clearance for Import project
Definition and implementation of REST, JMS, and SOAP endpoints
Implementation of database access with JPA
Implementation of BPMN processes with Camunda
Frontend implementation with React
Configuration of JBoss via CLI
Performing code reviews
Participating in communities of practice for developers and architects
Implementation of frontend-backend communication with WebSockets

Jul 2024 - Jun 2025

1 year

Lead Developer/Site Reliability Engineer

Federal Office for Migration and Refugees

Development of a digital case management system as microservices with Java 17
Development of REST services, access to MongoDB and GridFS with Spring Data
Deployment and administration in OpenShift with Kustomize, Helm, ArgoCD, and Flux
Use of Open Policy Architecture for authorization checks
Configuration of Knative with Kafka
Integration with d3 ECM, S3 storage, semantic entities, and authentication/authorization systems
Building CI/CD pipelines with Jenkins and Tekton

May 2024 - Jun 2024

2 months

Senior Fullstack Developer

Federal Employment Agency

Migration of a JEE monolith to the cloud
Replacement of a Swing client with an Angular 17 application
Backend migration from Payara Server to Payara Microprofile
Development of CI/CD pipelines with GitHub Actions on-premises
Performing code reviews
Deployment on Kubernetes Ranger

Mar 2023 - Jan 2024

11 months

Lead Developer

DRV

Development of a design system based on Carbon with components and Storybook
Documentation of portal and frontend artifacts with UML
Development of a microfrontend architecture in the NX Angular monorepo
Development of a mailbox as a web application and integration into the portal
Creation of web components with Angular Elements and StencilJS
Development of backend services with Quarkus and Spring Boot 3
Integration of OAuth2 via Keycloak
Coaching team members and performing code reviews
Setting up CI/CD pipelines with Tekton and GitOps in OpenShift with ArgoCD
Development of mock services with Node.js and Express.js
Creation of container images based on RedHat products and Helm charts
Development of unit tests with Jest and E2E tests with Playwright
Configuration to ensure code quality and accessibility testing with JAWS and axe-core

Jan 2022 - Feb 2023

1 year 2 months

Solution Architect, Devop

Rewe Systems

Replacement of an order control system from Cobol to Java for a retail company
Target architecture design for parallel data processing
Implementation of applications and knowledge transfer
Performing load tests
Adapting GitLab pipelines and Helm charts for Kubernetes Rancher
Proof of concept in IBM Sterling and Salesforce OMS
Development of a microservice for HBase API on MapR DB in Kubernetes
UML modeling and enterprise architecture analyses

Nov 2021 - Dec 2022

1 year 2 months

Software Developer in the SAP Forme team

SAP

Development of an asynchronous backend with Java, Vert.x, and Hazelcast
Database access to MongoDB and SAP HANA
Integration with SAP C4S Data Warehouse
Implementation of REST services with OData
Migration from Cloud Foundry to Kyma (SAP BTP Kubernetes)
Implementation of 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

Development, administration, and securing of a rule-based online communication application
Migration from WebLogic/DC-OS to Rancher/Kubernetes
Maintenance of Jenkins pipelines and creation of Docker images
Implementation of web interfaces and communication via SMTP, Kafka, REST, and SOAP
Asynchronous message processing with S3, MinIO, and Postfix
Configuration tool for shipping rules and archive data transfer
Use of StencilJS and ReactJS
Pipelines for machine learning document processing with Python
Migration of microservices to Kubernetes

Jun 2019 - Dec 2019

7 months

Solution Architect / DevLead / Dataop

Deutsche Bahn

Design and implementation of a data warehouse and ETL jobs
Loading of a data lake based on Cloudera (Hadoop/HDFS) and Amazon S3
Provision of corporate KPIs as data marts
Exposure of KPIs via REST API in OpenShift with OAuth2/OpenID Connect
Introduction of Data Vault 2 and business intelligence with Qlik Sense and QlikView
Integration of BI charts into a portal with Vue.js

Jul 2018 - May 2019

11 months

Solution Architect / DevLead / Devop

Lufthansa AirPlus Servicekarten GmbH

Design, implementation, testing, and operation of a payment system for card payments
Interfaces to SAP and CRM Dynamics
Setup of a Kafka test cluster in Azure Kubernetes Service
Creation of 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 / Devop

Ing-DiBa

Setup of a scalable big data infrastructure
Development of components for rule-based delivery of push messages via Kafka
Development of batch and real-time processing flows
Design and implementation of self-contained systems and microservices
Implementation of business processes in a business rule engine

Aug 2016 - Oct 2017

1 year 3 months

DevLead / 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 highly available 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
Connection to 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
Building 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 for controlling mobile repeaters
Support for VPN communication
JSP, Tomcat, RMI, JDBC, and OpenVPN integration

Jul 2011 - Dec 2011

6 months

Consultant for ESB and Backend

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

DevLead / Solution Architect, Technical Team Lead

Deutsche Telekom

Reengineering of a business process engine in a 25-person JEE project
Web development, interface design, and refactoring
Coaching, effort estimation, and installation scripts

Apr 2009 - Aug 2009

5 months

Developer Metasearch Application

Unnamed

Further development of a metasearch application with Java, Swing, Spring, and Hibernate
Design and implementation according to the 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 checks
MDA-based implementation

Jan 2008 - Jan 2008

1 month

Metasearch Rich Client Developer

Unbenannt

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 redeeming rewards with 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 a 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/assembler and BSP adjustments
Reverse engineering tools and multilingual keyboard drivers

Nov 2003 - Dec 2003

2 months

Solution Architect

Conject AG

Migration of a 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

Development of specialist modules for consumer credit and building 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

Institute for Mathematical Machines and Systems, Kyiv

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

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Banking and Finance, Government and Administration, Telecommunication, Retail, and Insurance.

Information Technology

Banking and Finance

Government and Administration

Telecommunication

Retail

Insurance

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, Operations, Business Intelligence, and Research and Development.

Information Technology

Product Development

Operations

Business Intelligence

Research and Development

Skills

Architecture
Kubernetes
Big Data
Devop
Angular 15
Rest
Operations
Dwh
Concept Development
Cms
Soa
J2ee
Distributed Systems
Team Leadership
Devop
Architect
Fullstack
Cloud
Jee
Machine Learning
Statistics
Java
Python
Angular
Javascript
Sql
Typescript
Front-End
Data Engineer
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 diploma thesis, grade 2 for state examination

Statistics

Experience

Total positions 34

Experience in Information Technology 8.5 y

Avg length 10 m

Longest experience 2 y 8 m

Expertise

Recent roles Lead Developer Backend, Frontend, BPMN / Administrator, Lead Developer/Site Reliability Engineer, Senior Fullstack Developer

Main industries Information Technology, Banking and Finance, Government and Administration

Main business areas Information Technology, Product Development, Operations

Profile

Member since

March 2026

Last update

September 2026

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Frequently asked questions

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Mykhaylo is based in Augsburg, Germany.

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

Mykhaylo has at least 28 years of experience. During this time, Mykhaylo has worked in at least 21 different roles and for 31 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.

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.

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

In recent years, Mykhaylo has worked for Main Customs Office, Department for Digital Affairs, Federal Office for Migration and Refugees, Federal Employment Agency, DRV, and Rewe Systems.

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

Mykhaylo is most experienced in business areas like Information Technology, Product Development, and Operations. Mykhaylo also has some experience in Business Intelligence, Research and Development, and Quality Assurance.

Mykhaylo has recently worked in industries like Government and Administration, Retail, and Information Technology.

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

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

Mykhaylo is immediately available full-time for suitable projects.

Daily rate distribution

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<€800 €800-960 €960-1120 €1120-1280 €1440+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Average rates for similar positions

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

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Daily rate avg. 840 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

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Median rate 760 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.