Oliver B.-Senior Software Architect
Check rate
Experience
Senior Software Architect
private Project
- Designed blockchain-based learning platform with event-driven architecture, integrating RESTful APIs for personalized learning paths
- Developed scalable microservices using Java, Python, and React in Kubernetes, enabling real-time data processing
- Implemented smart contracts (Solidity) for secure course purchases and mentor engagement
- Led AI-supported matching system (DecisionTreeRegressor) to optimize learning recommendations
Senior Java Engineer
The NextGen GmbH
- Transformed monolithic Java applications to microservices in Azure/Kubernetes, increasing scalability by 25%
- Built Spring Boot applications in cloud-native environments, reducing deployment times by 30%
- Optimized Power BI and BigQuery analytics, improving decision accuracy by 30%
- Led ProductionMonitoring project (09/2023 – 02/2025) transforming monolithic Java applications to microservices architecture in Azure/Kubernetes using Spring Boot and TDD
- Restructured PowerBI landscape (08/2022 – 03/2023) by creating and maintaining database views in MSSQL and BigQuery
Application Architect
IBM
- Designed Java-based blockchain interface for power plant controls in CI/CD, improving data exchange by 40%
- Developed Watson AI platform with automated testing (Selenium, Java), reducing error rates by 25%
- Led Various Modernization Projects (2016 – 2019) in banking, telecommunications, and defense, including JavaEE platform upgrades, security enhancements, and compliance solutions, increasing software reliability and customer satisfaction by 20%
- Implemented Blockchain Java API (12/2021 – 06/2022) in a CI/CD environment for power plant controls, improving operational reliability
Consulting Developer
binaris Informatik GmbH
- Optimized JavaEE banking software, increasing system efficiency by 15%
- Implemented new JavaEE features with WebSphere for stock trading, enhancing user-friendliness
Software Engineering Manager
TOMRA Systems GmbH
- Designed and led development of data science platform using Java, PostgreSQL, and BI integration, enabling predictive customer support, increasing customer satisfaction by 30% and reducing unplanned outages by 25%
- Developed Java-based BI platform with PostgreSQL, improving data processing by 50%
- Integrated data science and ERP systems, increasing data transparency by 53%
- Developed BI-Tools & RVM Analysis system (12/2009 – 01/2016) with Java, Tomcat, PostgreSQL, and OracleDB, including forecasting and report migration from PHP, increasing efficiency by 53%
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Banking and Finance, Energy, Telecommunication, Manufacturing, Information Technology, and Education.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Business Intelligence, and Project Management.
Summary
Senior Solution Architect with many years of experience designing cloud-native microservices, blockchain, and AI solutions using Java, Kubernetes, and agile methodologies. Expert in event-driven architectures, RESTful APIs, and DevOps, delivering scalable systems with up to 40% efficiency gains.
Skills
- Java (8+, Ee)
- Python
- Javascript (Node.Js, React)
- Sql
- Spring Boot
- Hibernate
- Kubernetes
- Docker
- Aws
- Azure
- Ibm Cloud
- Jenkins
- Git
- Ci/Cd
- Rest Apis
- Blockchain
- Smart Contracts (Solidity)
- Hyperledger Fabric
- Selenium
- Junit
- Scrum
- Kanban
Languages
Education
Darmstadt University of Applied Sciences
Bachelor in Business Informatics · Business Informatics · Darmstadt, Germany
State Office for Data Processing
Java Developer · Germany
bfi Vienna University of Applied Sciences
MBA Digital Transformation · Digital Transformation · Vienna, Austria
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Oliver is based in Remscheid, Germany.
Oliver speaks the following languages: German (Native), English (Advanced).
Oliver has at least 17 years of experience. During this time, Oliver has worked in at least 5 different roles and for 5 different companies. The average length of individual experience is 3 years and 4 months. Note that Oliver may not have shared all experience and actually has more experience.
Based on recent experience, Oliver would be well-suited for roles such as: Senior Software Architect, Senior Java Engineer, Application Architect.
Oliver's most recent position is Senior Software Architect at private Project.
In recent years, Oliver has worked for private Project, The NextGen GmbH, and IBM.
Oliver is most experienced in industries like Banking and Finance, Manufacturing, and Energy. Oliver also has some experience in Telecommunication, Information Technology, and Education.
Oliver is most experienced in business areas like Information Technology, Product Development, and Business Intelligence. Oliver also has some experience in Project Management.
Oliver has recently worked in industries like Energy, Banking and Finance, and Telecommunication.
Oliver has recently worked in business areas like Information Technology, Product Development, and Project Management.
Oliver holds a Master in Digital Transformation from bfi Vienna University of Applied Sciences and a Bachelor in Business Informatics from Darmstadt University of Applied Sciences.
Oliver is immediately available full-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
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 10 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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