Cheers

Dipl. Wirt.-Inf. Adam Lukaszewski

Oracle and Java Senior Developer

Address Hamburg
E-mail adam.lukaszewski@creative-doing.de
Phone +49 178 939 1165
Availability Ask me

As a seasoned Senior Developer and Architect based in Hamburg, I bring over 10 years of experience in Java and Oracle technologies. I specialize in crafting customized software solutions, guiding clients from initial concept and planning through to successful deployment.

My partners and customers perceive me as a highly motivated team-player who tries to get the best of their software assets. Not only developing but also consulting in how things can be improved for their business units and end-users with regard to time and budget. My tool-set consists of world-wide established technologies, like Oracle and Java, and highly scalable cloud services (PaaS, FaaS, DaaS, etc.) from AWS and GCP and finally the spirit to deliver quality at its best.

Services

Senior Software Development

Backend and API Design

Participate in the entire application lifecycle with a focus on coding, debugging, and integrating business services with frontends through generic API design.

Cloud Migration & Development

FaaS, PaaS, DaaS, IaaS

Evaluated feasible cloud migration strategies, including lift-and-shift, re-platform, and rebuild. Engineered highly scalable enterprise services and applications leveraging the capabilities of cloud providers such as AWS and GCP.

Service & Application Integration

Orchestration of Systems

Built higher-order services through seamless integration of systems and applications across the enterprise. Published back-office services for customers and end-users, utilizing state-of-the-art platforms and frameworks.

Technical Project Leadership

Coordination of Development

Proactively managed a team of experienced software developers to enhance complex applications. Created decision templates for management boards through comprehensive system analysis. Implemented digital solutions for business approaches.

Consulting & System Analysis

Uncovering Vulnerability

Developed as-is analysis of existing enterprise application environments. Decomposed system components and their integrations. Created UML-based documentation.

Agile Coaching & Teaching

Training and Best-Practices

Helped and mentored corporate teams on agile methodology, overseeing the development of agile teams to ensure effective outcomes for the organization.

Certificates

Programming Languages

Java SE/EE / Spring Framework 10+ years

Python 10+ years

PL/SQL 10+ years

SQL 10+ years

XML/XST/XSD 10+ years

CSS 8+ years

HTML 8+ years

Bash 8+ years

R-Cran 6+ years

Kotlin 5+ years

PHP 4+ years

Typescript 4+ years

See above an overview of programming languages I have used in different projects. Oracle PL/SQL and Java SE/EE are the languages I offer at an expert level, both of which I have used for several years.

Choose the right tool for the problem and do not adapt the problem to the tool!

Adam Lukaszewski

Although many customers request these skills, I am convinced that a programming language must meet the specific needs of the projects. With this mindset, I enhance my skills in Python when lightweight FaaS implementations, such as AWS Lambda and Google Cloud Functions, are required. I also use R-Cran for implementing statistical algorithms and evaluations.

Some additional technologies I have successfully used in the past:

AWS DynamoDB
AWS Aurora

Oracle
MySQL

SQLite
PostgreSQL

Apache Camel
Eclipse RCP
Hibernate
utPL/SQL

Java Persistence API (JPA)
JBoss Seam
JUnit

JSF
Serverless (SLS)
Spring Framework

Apache Karaf
JBoss

Tomcat

Weblogic

CSV
AWS Cloud9
Eclipse
Selenium

Forms API Master
Git
Hudson / Jenkins
Subversion (SVN)

IntelliJ
Maven
SQL Developer
Team Foundation

Enterprise Solutions

Amazon Web Services (AWS) 10+ years

Oracle Enterprise Business Suite (EBS) 5+ years

Talend ESB 8+ years

Google Cloud Platform (GCP) 5+ years

Oracle Reports 5+ years

Oracle Forms 5+ years

SAP 5+ years

Companies often request some more specific application frameworks, business suites and ERP skills. The integration and creation of highly complex enterprise systems which must support a variety of different business-relevant processes, is much more challenging than the creation of an simple customer order or portal solution. I accompany my customers in the integration and extension of their ERP systems and business suites with sophisticatedly created services and applications.

Cloud Native Skills

Amazon Web Services (AWS) 10+ years

Google Cloud Platform (GCP) 5+ years

Oracle Cloud 1+ years

Azures 1+ years

As a developer, I love cloud services. Highly specialized cloud vendors offer their services like low-hanging fruit. Instead of spending hours or days installing application servers, I prefer to use auto-scalable platforms as a service (PaaS) or function as a service (FaaS) which best meet the requirements of customers. With pay-as-you-go pricing, customers are only charged for what their application uses and what their users demand.

Linking and conquering the numerous cloud services may be challenging, but it is worth it. Once you understand the concepts, you start to focus on business needs rather than arranging application servers, hardware, or infrastructure.

An overview in detail, of the services I have worked with:

API Gateway
CloudWatch
Cloud Formation
CodeCommit
CodePipline

CodeDeploy
Cognito
CodeStar
DMS
DynamoDB

Elastic Beanstalk
EC2
IAM
Lambda
RDS

SNS
SQS
S3
VPC

App Engine
BigQuery
Cloud Storage

Compute Engine
Cloud Datalab
Cloud Functions

Datastudio
Pub/Sub
Spring Framework

Work Experience

Cloud Architect / Lead Developer / Coach

Mercedes Benz

Developed a generic platform in AWS for testing Electronic Control Units (ECUs) of various types, focusing on quality assurance and reducing intensive hardware-specific testing.

Challenge: Creating a robust and scalable platform for ECU testing to improve quality assurance and minimize hardware-specific tests.
Solution: Designed the foundational architecture in AWS and developed multiple backend services using a microservice architecture, primarily in Python. Developed core libraries, such as the OAuth token flow, to support backend and frontend integrations. The platform underwent a security audit and successfully passed.

AWS ECS AWS Lambda AWS Chalice AWS DynamoDB VPC EC2 EC2 Image Builder SNS SQS IAM CDK Python C# npm Typescript poetry

07/2022 - 12/2022

Backend Developer / DevOps

VTG Rail Europe GmbH

Provided consulting and development services for the maintenance and further development of the traigo.com platform.

Challenge: Expanding platform functionalities and ensuring operational stability in an AWS environment.
Solution: Implemented customer use cases with IoT and serverless approaches, designed APIs, and improved infrastructure provisioning with Infrastructure as Code.

Kotlin PostgreSQL Github Gradle DataDog IntelliJ Git Kubernetes AWS SNS/SQS AWS S3 AWS Athena AWS EKS AWS RDS AWS Lambda AWS DynamoDB Spring Boot Docker GitLab Terraform

09/2022 - 10/2022

AWS Trainer / Coach

Academic Work Germany GmbH

Planned and conducted a five-week AWS training course to prepare 16 consultants for AWS certification.

Challenge: Effectively conveying complex AWS concepts within a limited time.
Solution: Developed a comprehensive curriculum with theoretical and practical components, including mini-projects.

Python AWS EC2 AWS CloudTrail AWS Config AWS Lambda AWS VPC AWS CodeCommit AWS DynamoDB AWS CloudWatch AWS IAM AWS SNS/SQS AWS SES AWS CloudFormation AWS Elastic Beanstalk Git

12/2021 - 07/2022

Software Architect / DevOps / Fullstack

edia-Saturn IT Services GmbH

Conceptualized and implemented a master data application for processing contracts and purchasing conditions in a GCP cloud environment.

Challenge: Integrating multiple systems and ensuring data consistency.
Solution: Developed a single point of truth API and refactored interfaces to REST endpoints.

Kotlin PostgreSQL Github Gradle Kibana Grafana IntelliJ Git Kubernetes GCP Kubernetes GCP Cloud Storage GCP PubSub Helm Docker TypeScript

05/2021 - 12/2021

Software Architect / Software Developer

BMW Group

Enhanced global backend microservices for the My BMW App, optimizing service mesh architecture in AWS.

Challenge: Improving the scalability and efficiency of backend services.
Solution: Developed and implemented technical concepts, optimized the service mesh architecture, and conducted deployments in EMEA, US, and China.

Java EE Mockito Jenkins Maven Kibana Grafana IntelliJ Git Joynr Kubernetes AWS ECS AWS EKS AWS ECR AWS RDS AWS SNS AWS SQS Redis PostgreSQL

04/2020 - 05/2021

Integration Architect / Software Developer

CHEFS CULINAR GmbH & Co. KG

Developed integration for master and transactional data during SAP implementation, integrating an existing ERP system (Adabas) into SAP.

Challenge: Maintaining data integrity and seamless integration with SAP.
Solution: Developed a REST interface and implemented change-data-capture logic.

Adabas Teradata Talend ESB Talend DI Postman Java XSLT XML SQL PL/SQL Oracle Apex Citrus (Test Framework) Jenkins Maven Kibana IntelliJ Git Subversion

01/2020 - 03/2020

Cloud Architect / Software Developer

EDEKA DIGITAL GmbH

Developed a serverless microservice for market search on edeka.de and managed build and deployment pipelines in AWS.

Challenge: Designing a scalable and efficient serverless solution.
Solution: Implemented AWS Lambda and integrated the solution into the existing microservice landscape.

TypeScript AWS Lambda AWS CodeBuild AWS CloudFormation AWS SQS AWS SNS AWS S3 ElasticSearch Kibana localstack Serverless Framework (SLS) PostgreSQL IntelliJ

12/2018 - 12/2019

System Analyst / Software Architect

DERMALOG Identification Systems GmbH

Developed a public government interface for biometric verification, integrating existing processes and orchestrations.

Challenge: Ensuring secure and efficient biometric data processing.
Solution: Developed a web-based interface and defined generic data models for the public API.

Oracle 12g Java EE PL/SQL SQL utPLSQL Spring SQL Developer Git XML XSLT XSD REST

11/2018 - 11/2018

Java Developer / Talend Developer

Veolia Umweltservice

Developed ETL processes for a Data Lake (DWH) for unified company-wide reporting.

Challenge: Integrating various data sources into a unified reporting system.
Solution: Implemented ETL processes and a change-data-capture mechanism.

Oracle 11g Talend DI PL/SQL Java EE AWS DMS GCP Datastudio GCP BigQuery GCP Cloud Storage

10/2018 - 11/2018

Python Developer

Veolia Umweltservice

Developed a serverless instant messenger client for monitoring AWS services and direct notifications to Telegram Bot.

Challenge: Efficiently monitoring AWS services and providing direct notifications.
Solution: Implemented a cost-effective Function as a Service.

AWS CodeCommit AWS SQS AWS SNS AWS Lambda AWS CloudWatch Serverless (SLS) Python Git

04/2018 - 10/2018

Java Developer

Veolia Umweltservice

Developed an interface layer for bidirectional communication between backend and frontend systems (customer portal).

Challenge: Ensuring seamless communication between backend and frontend systems.
Solution: Refactored interfaces and converted to REST endpoints (JSON).

Oracle 11g AWS CodeCommit AWS SQS AWS SNS AWS CloudFormation AWS Lambda AWS CloudWatch Java EE PL/SQL SQL Spring Apache Camel Junit JPA</kbd

01/2018 - 11/2018

Software-Architekt

Veolia Umweltservice

Redesigned an old interface to a REST-based API for a Document Management System.

Challenge: Modernizing the interface design for better integration with DMS.
Solution: Implemented Apache Camel REST DSL endpoints.

Oracle 11g Talend ESB AWS CloudFormation AWS EC2 Java EE Maven

01/2018 - 03/2018

Java Developer

Veolia Umweltservice

Redesigned an old interface to a REST-based API for a Document Management System.

Challenge: Modernizing the interface design for better integration with DMS.
Solution: Implemented Apache Camel REST DSL endpoints.

Oracle 11g Talend ESB AWS CloudFormation AWS EC2 Java EE Maven Nexus

08/2016 - 12/2017

Java Developer

Veolia Umweltservice

Led the development of a Data Warehouse for company-wide reporting, utilizing cloud-based GCP BigQuery.

Challenge: Integrating multiple data sources into a comprehensive reporting system.
Solution: Developed ETL processes and implemented a change-data-capture mechanism.

Oracle 11g Teradata SQL Developer Talend DI PL/SQL AWS DMS AWS CodeCommit AWS CLI Git

01/2016 - 08/2016

Oracle Database Developer

Veolia Umweltservice

Developed and tested a telematics integration for paperless order processing.

Challenge: Integrating multiple systems for paperless order processing.
Solution: Implemented an Oracle Forms and Reports application for electronic document exchange.

Oracle 11g Oracle Forms Oracle Reports PL/SQL Java EE AWS CodeCommit Git

02/2015 - 07/2015

EBS Developer / Consultant

KGAL

Provided technical consulting for the implementation of an Oracle E-Business Suite.

Challenge: Clarifying technical and business integration solutions.
Solution: Developed high-level concepts and conducted feasibility analyses.

Oracle 11g PL/SQL Java EE Oracle BI E-Business Suite Oracle Forms WebADI

05/2013 - 07/2015

GDPdU Product Development and Support

Promatis

Introduced a migration and GDPdU exporter as a best practice solution for Oracle E-Business Suite at various clients.

Performed installation, implementation of customer-specific requirements, product support, and quality assurance.
Consolidated the development process through build and test automation.
Maintained and further developed Java (Swing) and PL/SQL implementations.

Oracle 12g Java SE PL/SQL XML E-Business Suite

01/2015 - 02/2015

EBS Developer / Database Developer

Hofmeister & Meinke

Developed a critical interface for mass data maintenance in Oracle E-Business Suite.

Challenge: Managing mass price information updates.
Solution: Implemented PL/SQL interface logic and integrated it into the E-Business Suite.

Oracle 12g PL/SQL Oracle BI Oracle WebADI E-Business Suite

11/2014 - 12/2014

EBS Developer / Database Developer

Duales System Deutschland

Developed ERP add-on interfaces for capturing transaction data.

Challenge: Migrating transaction data during a tenant takeover.
Solution: Implemented ETL processes and add-on interfaces for Oracle E-Business Suite.

Oracle 12g PL/SQL E-Business Suite

08/2014 - 11/2014

EBS Developer / Database Developer

Praxair

Developed ETL processes for ERP implementation in Oracle E-Business Suite.

Challenge: Migrating fixed assets data to the new ERP system.
Solution: Implemented PL/SQL data transformation routines.

Oracle 12g PL/SQL E-Business Suite

07/2014 - 08/2014

EBS Developer / Database Developer

Primacom

Developed ETL processes for migrating tenant data in Oracle E-Business Suite.

Challenge: Migrating transaction and master data for a new tenant.
Solution: Implemented PL/SQL data transformation routines and data cleansing.

Oracle 12g PL/SQL E-Business Suite

02/2014 - 06/2014

Java Developer

Einführung der kontinuierlichen Integration

Optimierung des Entwicklungsprozesses durch Realisierung der kontinuierlichen Integration mittels Maven, Nexus und Jankins.

Refactoring des bestehenden Java EE Projekts und Funktionserweiterung
Mavenisierung der Projektressourcen und Abhängigkeiten
Projektdokumentation und Schulung der Entwickler im Umgang mit dem Build-Management Tool und Entwicklungsprozess

Oracle 11g Java EE Arquillian Weblogic Tomcat E-Business Suite

01/2014 - 02/2014

Java Developer

myToys

Developed and extended a mobile web application for Motorola devices.

Challenge: Modularizing and internationalizing a JavaServerPage-based frontend.
Solution: Refactored the existing Java EE project and centralized CSS for styling.

Oracle 11g PL/SQL Java EE JSP Weblogic Tomcat E-Business Suite

12/2013 - 01/2014

EBS Developer / Database Developer / Java Developer

Hofmeister & Meinke

Developed ETL processes for migrating data in Oracle E-Business Suite.

Challenge: Migrating creditor data to a new Oracle E-Business Suite instance.
Solution: Implemented PL/SQL data transformation routines and data cleansing.

Oracle 11g PL/SQL Java SE Weblogic Oracle E-Business Suite Oracle WebADI

10/2013 - 12/2013

EBS Developer / Database Developer

myToys

Developed an automated inventory withdrawal process in Oracle E-Business Suite.

Challenge: Reducing personnel effort in inventory management.
Solution: Implemented highly parameterizable background programs for inventory management.

Oracle 11g PL/SQL Oracle E-Business Suite Oracle Forms

09/2013 - 10/2013

EBS Developer / Database Developer

Primacom

Developed additional interfaces for master data maintenance in Oracle E-Business Suite.

Challenge: Providing supplementary SEPA information for Oracle E-Business Suite.
Solution: Implemented SQL statements for data extraction and staging.

Oracle 12g PL/SQL Java SE Weblogic Oracle E-Business Suite Oracle WebADI Oracle BI

06/2013 - 09/2013

EBS Developer / Database Developer

ADP

Developed additional interfaces for capturing master data in Oracle E-Business Suite.

Challenge: Simplifying migration of transaction data.
Solution: Implemented Oracle WebADI data migration solutions.

Oracle 11g PL/SQL Java SE Weblogic Oracle E-Business Suite Oracle WebADI Oracle BI

09/2011 - 05/2013

R Developer / Java Developer

Technische Universität Hamburg-Harburg

Analyzed structural equation methods in parallel runtime environments and implemented software-based simulation methods.

Responsibility: Conducted statistical method comparisons using R.
Responsibility: Implemented the Generalized Structured Component Analysis (GeSCA) algorithm in R.
Responsibility: Simulated in a large cluster environment using R Snowfall.

R-Cran R Snowfall Bash Java SE R Snowfall

Find above a comprehensive list of projects I have been involved in over the past years. The range of technologies I have applied is extensive, from R-Cran to Java and Oracle’s Enterprise Business Suite. I have also marked my personal favorites with stars. The more stars, the more complex, interesting, and beneficial the project was for the customer.

My Clients

Testimonials

Herr Lukaszewski zeigte stets Eigeninitiative und überzeugte durch sein überdurchschnittliche Leistungsbereitschaft. Auch stärksten Arbeitsanfall war Herr Lukaszewski jederzeit gewachsen und verstand es, Prioritäten zu setzen. Seine Arbeitsweise war stets sehr zuverlässig und genau.

Herrn Lukaszewski haben wir als sehr engagiert kennengelernt. Er erledigte seine Aufgaben umsichtig, selbstständig und sehr verantwortungsbewusst. Seinen Arbeitsbereich beherrschte er sicher, er hatte neue Ideen und zeigte gute Lösungen auf.

Michael Vervoorts Leiter Zentralbereich IT (CTO)
He is an extremely promossing student - highly motivated, persistent, and intelligent. I suppose doing well in business is easy if you are, as he is, driven by quality. Mr. Lukaszewski is able to explore and understand new and unfamiliar topics in a very short time. Especially in difficult situations, he is very capable to inspire, motivate and lead a team with enthusiasm. Moreover, he is capable of developing ideas independently as well as talking up the ideas of other team members and refining them.

Mr. Lukaszewski has a rare blend of research, analytical, and interpersonal skills. I am pleased to say that he is a team player. and a kind and cooperative individual.

Prof. Dr. Christian M. Ringle Professor , Institute of Human Resource Management and Organizations
Als Systemarchitekt und Berater nutzte Herr Lukaszewski für seine Arbeit die Oracle Werkzeuge wie Oracle JDeveloper, Oracle SQL Developer, Oracle SOA Suite, Oracle Business Intelligence Suite, Oracle Application Express... und diverse Open Source Produkte.

Herr Lukaszewski wurde aufgrund seiner Fachkenntnisse mit schwierigen Aufgaben betraut, die er selbstständig, erfolgreich und stets zu unserer vollsten Zufriedenheit erledigte. Aufgrund seiner sehr schnellen Auffassungsgabe konnte sich Herr Lukaszewski selbstständig und schnell in neue Problem- und Aufgabenstellungen einarbeiten und auch komplexe Zusammenhänge erkennen. Herr Lukaszewski lieferte im Rahmen der entsprechenden Projekte immer qualitativ und quantitativ hervorragende Ergebnisse.

Rainer Mann Geschäftsführer Operations (COO)