Object-Oriented Programming Experts in Stuttgart
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Meet FRATCH Experts in Stuttgart, who have recently used Object-Oriented Programming
Deepak N.
Last position:
Consultant at Advantest Europe Gmbh
- Develop hardware drivers and middleware using C++11, Java and Python
- Design of various RF features such as deembedding based on stakeholder requests
- Work with multiple teams to design drivers for multiple RF products
- Perform HW control to deliver RF signals and measure modulated response
- Develop RF drivers for generation of low noise signals to test WiFi7 products
- Use digital modulation techniques such as QAM for low level driver development
- Develop low level USB drivers for device enumeration
- Develop drivers for HW relay control of control boards for device testing
- Perform JTAG operations on devices under test
- Use network-based protocols (SFTP, UFTP, FTP, SSH) for control board communication
- Manage HW devices such as BADC and EEPROM for control board maintenance
- Utilize C++11/14/17 features, template metaprogramming and STL
- Employ multithreading for testing and control of multiple HW devices
- Develop tools for deployment of customer OS on control boards
- Perform component and integration tests using CxxTest
- Follow Scaled Agile Framework for software development
- Create detailed design documents using PlantUML
Robin S.
Last position:
Senior Cloud & Backend Engineer at Media-Saturn-Holding GmbH
- Implementing applications with Kotlin and Ktor as microservices
- Using MongoDB in the MongoDB Atlas cloud
- Asynchronous communication of services via Google Pub/Sub
- Using Kotest and MockK for unit tests
- Developing an administration frontend with TypeScript, React and Express.js
- Provisioning environments in GCP using Terraform
- Implementing CI/CD processes with GitHub Actions
- Operating scalable production and test environments in GCP with Kubernetes, Helm and Flux CD
- Monitoring environments with Prometheus and Grafana
- Providing BI data in the Google BigQuery data warehouse
Will O.
Last position:
Solution Architect at Stuttgart Police Authority
Designing the migration strategy for WLS applications to the BKA cloud and Stack IT
Creating a hybrid cloud for internal testing and development with Kubernetes
Transforming the IT landscape from a legacy monolithic architecture to a cloud-based architecture
Integrating new CI/CD processes using Azure Pipelines
Quadrupled the throughput of personnel security checks
Migrated personnel security clearance applications to Docker-based applications
Built CI/deploy pipelines with Azure DevOps
Environment: Java Spring Boot, Kubernetes, Oracle WebLogic, OpenID, Camunda, JUnit, TOGAF
Benjamin S.
Last position:
Design and implementation of a new cloud service at Porsche AG
- Design of a new cloud service
- Requirements Engineering
- API Design (REST API, Kafka)
- Consulting on architecture, feasibility and effort estimation
- Implementation of a microservice architecture
- Implementation of a Spring Boot web service
- Development of REST APIs including business and persistence logic
- Kafka consumers and producers
- Various Excel upload/download scenarios
- Change Data Capture
- Cloud provisioning with IaC/Terraform
- Go-live with 30,000 users
- Operation, support and bug fixing for other services
Environment/tools: GitLab, JIRA, Confluence, IntelliJ, Spring Boot, Java, Docker, Terraform, AWS ECS, Postgres, Apache Kafka, SAP Datasphere, JUnit, Debezium, Apache POI, Hibernate, JPA, Testcontainers
Achille C.
Last position:
Backend/Frontend Developer at ITZ-Bund
Development of a microservice application for calculating postings on accounts
Development of backend components with Java or JEE, Quarkus, Kafka, Rest API
Development of the test component with mocking frameworks (Mockito)
Development of integration test components
Creation of OpenAPI specification format
Configuration of CI/CD pipeline
Development of frontend components with React
Design, further development and optimization of system structures
Code review
Java Corretto 21, JEE, Quarkus, Golang
Reactive programming with Spring WebFlux, Project Reactor
Git, Azure DevOps for CI/CD pipeline, YAML, Json Swagger UI, Postman, Rest OpenAPI, Kafka Streams, Kafka Connect, Log4J
Microservices, Jira, Confluence, MySQL, Docker, Kubernetes (deployment via Helm charts)
Spring Security, OAuth 2, JWT, Sonarqube
IntelliJ, Maven, logging framework Splunk, Agile method Scrum, Nexus, Vaadin V24, build tool Vite
React, React.JS, Node.js, Jess/JavaScript, Tailwind CSS, Agile method Scrum, accessibility BITV, Playwright
Güven M.
Last position:
SAP EWM Manager at MHP
Lead consultant focusing on EWM, WM, MM, LE, SD, TM in an S/4HANA system
Design, implementation and rollout of a new S/4HANA logistics system as part of the OneLog project for battery management across multiple plants
Industry: Automotive
Overall responsibility for contributing to the design, realization and successful deployment of an SAP S/4HANA logistics system
Managing and coordinating rollouts in the roles of EWM Manager, Rollout Manager, and project and subproject lead
Providing strategic advice to clients on logistics processes, system architecture and best-practice approaches
Responsible for creating, aligning and quality-assuring IT specifications for technical enhancements
Leading customizing activities to optimally map complex business processes
Planning, managing and executing system, integration, functional and regression tests to ensure a stable production environment
Overall responsibility for cut-over, go-live and hypercare phases including data migration from SAP WM to SAP EWM
Planning, organizing and conducting user training sessions and on-site support to ensure sustainable system adoption
Designing and implementing a prototype for a shuttle solution in SAP S/4HANA Manufacturing Logistics integrating SAP TM and SAP EWM
Sri M.
Last position:
Electronics Engineer at Dausinger + Giesen GmbH
- Designs and develops new high-precision analog/digital PCBs for laser control systems using Eagle and KiCad.
- Leads hardware testing, failure analysis, and systems integration for all PCBs within high-power laser systems.
- Conducts component-level debugging on PCBs, tracing faults from power supply rails to communication lines (CAN, SPI) and sensor data (ADC/DAC).
- Identifies burned/damaged components, performs SMD/THT rework and soldering to repair and validate boards.
- Developed an advanced auto-alignment algorithm using Particle Swarm Optimization (PSO) and PID control in Embedded C. This firmware uses a 4-Quadrant-Diode (4QD) PCB’s ADC signals to control piezo mirrors, automatically maximizing the laser’s power position.
- Developed an Autonomous Laser Alignment System using a PIC18F26K83. Implemented a Bayesian Optimization algorithm to maximize optical power by controlling a 2-axis piezo inertia mirror mount.
- Designed a "Virtual Encoder" in software to track position for an open-loop system.
- Configured the Internal ADCC in Burst Average Mode to filter high-impedance photodiode noise.
- Interfaced with a PI E-870.41 driver using a custom 20kHz multiplexed pulse train.
- Developed a robust CAN Bootloader for the dual-core dsPIC33CH, enabling remote firmware updates. Solved deep-level bugs related to hardware timer conflicts, slave core fuse-bit mismatches, and CAN state management.
- Installs and integrates validated PCBs into the final laser systems, verifying all CAN, power, and I/O cabling and debugging any system-level hardware/software conflicts.
- Contributes to the development of the C++/Qt-based system control software, integrating CAN protocols to control and test all PCBs from a unified application.
Colin W.
Last position:
Founder & CTO at Savvi Learning GmbH
- Managing director (CTO/CFO) and founder of Savvi and Sparklyft
- Management of the entire product team incl. development team & content team
- Responsible for product strategy, go-to-market, project management, integration projects, business planning, etc.
Elvir B.
Last position:
Software Architect and Software Developer at Noctica IT GmbH
- NocTime time tracking, workshop planner, meal delivery service app
- LLM-based chat bot to control the NocTime time tracking system via voice input
- New and further development of customer solutions based on the Noctica SAS app framework
- Technologies: Java 17, Spring Boot, JPA, Hibernate, JavaScript, TypeScript, Angular 20, Angular Material, React, C#, Docker, Bash, Git, GitLab, RedMine, SQL, DBeaver, MariaDB, PostgreSQL, Python, TensorFlow, Ollama, various LLMs
Dean R.
Last position:
CEO / Chief Scientist at ENUM
- Blockchain platform technology
- Blockchain digital platform / Digital Economy.
Dominik W.
Last position:
Head of Mobile Development / CTO at MOSAIC BLABBER
- Technology strategy planning concerning the client-server and blockchain environments
- Development of smart contracts for the EOS blockchain using C++, Python and JavaScript and for Ethereum using Solidity
- Development of the BLABBER mobile app for iOS and Android using React Native
Discover over 15,000 top freelancers
Statistics of experts using Object-Oriented Programming
Aggregated from the professional profiles of matched freelancers.
Experience
15 years (Germany: 22 years)
Position duration
2.5 years (Germany: 3.2 years)
Positions per freelancer
12 (Germany: 15)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Aerospace and Defense
Certification focus areas
Information Technology, Project Management, Business Intelligence
Bachelor's degree or higher
100% (Germany: 89%)
Master's degree or higher
55% (Germany: 59%)
Certifications per freelancer
1 (Germany: 3)
Most common languages
English, German, French
Speak two or more languages
100% (Germany: 95%)
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Stuttgart are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Stuttgart using Object-Oriented Programming
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Object-Oriented Programming experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Information Technology (100%)
- Manufacturing (73%)
- Aerospace and Defense (45%)
- Automotive (45%)
- Banking and Finance (45%)
- Insurance (45%)
- Government and Administration (36%)
- Telecommunication (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Core concept
Object-Oriented Programming, often called OOP, organizes software around objects that combine state with behavior. Classes define shared structure, while encapsulation protects internal data and inheritance or composition supports reuse. The approach helps teams represent business concepts clearly and maintain large codebases over time.
What it builds
OOP is used for backend services, desktop applications, mobile software, enterprise systems and embedded products. It suits domains with rich business rules, long product lifecycles and many interacting components.
- Model customers, orders, workflows and other domain entities
- Create reusable application and service components
- Structure APIs, user interfaces and data-access layers
- Refactor complex code into testable modules
Languages and tooling
Professionals apply OOP through languages such as Java, C#, C++, Python, Ruby and Swift, with conventions that differ by ecosystem. Typical work includes interfaces, abstract classes, dependency injection, packages, generics, design patterns and automated tests. Framework knowledge may include Spring, .NET, Django, Rails or native mobile toolkits.
When expertise helps
Companies bring in freelance specialists when a codebase has become difficult to extend, a new product needs a durable domain model, or an existing system must be modernized without disrupting users. In Stuttgart, this expertise can support automotive, industrial, software and business applications, with remote or on-site collaboration depending on the team and language needs.
- Establish boundaries between domains and services
- Reduce duplication and hidden dependencies
- Introduce testing and refactoring practices
- Review architecture before a major release
Strong professional practice
Strong OOP professionals choose composition over unnecessary inheritance and keep responsibilities focused. They can explain trade-offs between flexibility and complexity, write readable interfaces, and adapt patterns to the problem instead of applying them mechanically. They also understand version control, build pipelines, debugging and secure software delivery.
Project fit and outcomes
The right specialist starts by examining the domain, existing language conventions, deployment environment and team workflow. Useful deliverables can include a domain model, class and interface design, refactored modules, test suites, technical documentation and review findings. Good work leaves the system easier to change, test and operate, not merely more abstract.
Frequently asked questions
Before you brief your next project: the most common questions about Object-Oriented Programming.
Object-Oriented Programming is used to structure software around objects that hold data and behavior together. Companies use it for business applications, APIs, desktop tools, mobile products, embedded systems and other software with complex domain rules.
OOP organizes behavior around objects, classes and their relationships, while functional programming emphasizes pure functions and immutable data. Many modern systems combine both approaches, so the best choice depends on the domain, language, existing codebase and team skills.
A strong Object-Oriented Programming specialist should also understand software architecture, automated testing, version control and refactoring. Experience with APIs, databases, dependency injection, build pipelines and cloud deployment is valuable when the work extends beyond class design.
The required level depends on the system’s complexity rather than a fixed number of years. For a focused module, a professional with solid language and testing skills may be enough; large legacy systems need someone who can model domains, manage dependencies and lead safe refactoring.
Object-Oriented Programming work is often suitable for remote collaboration because design, coding, reviews and testing can be handled through shared repositories and communication tools. On-site work in Stuttgart may help when the specialist must understand physical products, regulated processes or close team coordination.
An OOP freelancer can add focused expertise when a team faces a difficult redesign, legacy modernization, architecture review or urgent delivery need. External support is especially useful when internal professionals need an independent perspective without pausing their product work.
Ask the Object-Oriented Programming professional to explain a design decision, its alternatives and the trade-offs involved. Review examples of readable code, meaningful tests, domain modeling and incremental refactoring, then use a technical discussion or practical review to assess reasoning.
OOP is central to languages such as Java, C#, C++, Python, Ruby and Swift, although each supports the paradigm differently. The relevant language depends on the product, runtime, framework and existing team, so practical ecosystem knowledge matters as much as general principles.
The average hourly rate of freelancers in Stuttgart, Germany who have used Object-Oriented Programming in their recent projects is 114 €, which corresponds to a daily rate of about 913 € based on an 8-hour working day.
Of the freelancers in Stuttgart, Germany who have used Object-Oriented Programming in their recent projects, 100% hold at least a Bachelor's degree and 55% hold at least a Master's degree.
On average, freelancers in Stuttgart, Germany who have used Object-Oriented Programming in their recent projects have 15 years of professional experience, with a single engagement typically lasting around 2.5 years.
The most common languages among freelancers in Stuttgart, Germany who have used Object-Oriented Programming in their recent projects are English (100%), German (91%), and French (27%).
The most common industries among freelancers in Stuttgart, Germany who have used Object-Oriented Programming in their recent projects are Information Technology (100%), Manufacturing (73%), and Aerospace and Defense (45%).
The most common business areas among freelancers in Stuttgart, Germany who have used Object-Oriented Programming in their recent projects are Information Technology (100%), Product Development (91%), and Project Management (64%).
Main locations of FRATCH Experts, who have recently used Object-Oriented Programming
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
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Frankfurt 
Dusseldorf 
Dortmund Countries:
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