Object-Oriented Programming Experts in Hamburg
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Meet FRATCH Experts in Hamburg, who have recently used Object-Oriented Programming
Michael M.
Last position:
IT PROJECT MANAGER (MS Exchange) at Statutory health insurance fund on behalf of Randstad Digital Germany (formerly AUSY Technologies Germany)
Migration from Exchange 2016 to Exchange 2019 and Exchange Online, as well as the introduction of a backup solution and an archiving solution. The goal was to securely modernize the email and archiving infrastructure in compliance with legal requirements and ensure high performance.
Responsibilities as IT PROJECT MANAGER: Overall project management and operational coordination / Ensuring compliance with budget and resource limits / Ensuring project objectives are met / Ensuring compliance with regulatory requirements and policies, including ISMS, ITIL, and data protection requirements / Preparing and presenting management reports for the project sponsor and steering committee / Coordinating cross-functional teams across Exchange, network, data protection, and IT security / Planning and carrying out the migration from Exchange 2016 to Exchange 2019 / Planning and carrying out the migration from Exchange 2019 to Exchange Online / Planning and introducing a backup solution for Exchange Online / Coordinating an EU-wide tender for an archiving solution, including market research with potential suppliers / Planning and introducing an archiving solution for Exchange Online / Coordinating and preparing the BAS notices required for the project / Coordinating and aligning with stakeholders (for example, business units, external service providers, and suppliers) to define requirements and deliver solutions
Technical environment: MS Exchange 2016, MS Exchange 2019, MS Exchange Online, MSOffice, MS Planner, MS Powerpoint, MS Project, MS Teams, CodeTwo, Hornet Security
Hartmut U.
Last position:
Freelancer at Freelancer
Projects at Raiffeisen Software Group (RSG), Linz from 2022-01-01 to 2025-03-31: application development on mainframe with PL/1, DB2, JCL, Tabex; development environment with idz, Jira, Dimensions, Confluence; execution of projects in banking reporting (own funds, capital requirements, large exposures, leverage ratio)
Project at Airbus, Hamburg from 2020-01-01 to 2022-12-31: mainframe system enhancements (TAKSY) in agile environment (Scrum, SAFe); business analysis; technical design; implementation (PL/1, DB2, IMS, JCL); test management; deployment
Rainer D.
Last position:
Enterprise Architecture Management / Backend Software Developer at Polizei Hamburg
- Several projects in a police context
- Model and document police procedures/projects with Archimate (as-is/to-be) in the context of P20 (BKA)
- Create software architectures with microservices
- POC development with Springboot/Docker/Kubernetes
- Project size: 10 people
- Enterprise architecture management with Togaf and Archimate
- Backend software development Springboot
- DevOps with Kubernetes
- Implemented using: Java 17/21, Springboot 3, P20 architecture, Togaf, Archimate
Peter N.
Last position:
Pilot testing AI tools & sabbatical for house renovation
- Pilot testing local AI environments to explore local AI use cases and cloud-based AI solutions
- Evaluation of AI tools and techniques
- Use of local AI tools with own data sovereignty
- Prompt engineering
- Creation of example environments for speech-to-text, text-to-speech, text-to-image, text-to-video, and image-to-video
Tools: Grok, Perplexity, ChatGPT, Elevenlabs, Github, Ollama, HuggingFace, Open WebUI, Faster Whisper, LibreTranslate, WSL, Docker Desktop, Shotcut, Audacity, Sound eXchange, Ffmpeg, Coqui TTS, Pinokio, Stable Diffusion Web UI, ComfyUI, OWL, Void Editor
Jonas T.
Last position:
IT Consultant at Bechtle AG
- Prequalified 200 demands within five weeks on the multi-cloud-commerce platform bechtle-clouds.com with three external consultants
- Served a dual role as project manager and requirements engineer for various enhancements
- Domain topics: reimplementation of Entra ID Sync, improvement of support processes, optimizations in the product catalog
- Demand and project management in ServiceNow
- Refinement of epics and stories with internal teams and external service providers
- Management of the external international service provider
David A.
Last position:
Senior SAP Commerce Cloud Developer at Freelancer
- Integration of SAP Commerce Cloud with SAP Cloud for Customer
- Creation and execution of unit and integration tests
- Error analysis and bug fixing
Lars K.
Last position:
Lead Drupal Developer at x-tention
- Lead Drupal 10 developer for several greenfield projects in the health sector
- Drupal architecture in a cloud environment
- Setup and maintenance of Gitlab pipelines and Kustomize scripts for Kubernetes deployments
- Development of Docker images
- Drupal custom module development for clients such as OAuth and FHIR
- Drupal frontend theming based on Bootstrap 5 and Single Directory Components
- Setup and maintenance of automated Playwright tests
Sridhar H.
Last position:
SAP CX Consultant at Anonymous
- Stack: SAP Commerce 2011 (B2C).
- Migrating the data from Stibo system to SAP Commerce Cloud.
- Mapping the data from Stibo system to SAP Commerce Cloud.
- Integrating hot folders to support multiple countries and languages.
- Integrating validation tools for migrated data and generating validation reports.
Andreas S.
Last position:
Solution Architect, Business Analyst, Consultant, Full-Stack Lead-Developer at 50Hertz Transmission GmbH
- Solution for micro-service and frontend solution for the electric grid
- Leading of development teams
- Technologies: React-Native, TypeScript, Kotlin, AWS, Infrastructure As Code, Serverless Architecture, React, NoSQL, GraphQL, Angular, Playwright, Python, ML(Ops), Kubernetes, Docker
Boris W.
Last position:
Consultant, Developer at ALD AutoLeasing D GmbH
- Industry: automotive / banking
- Preparation for SAP HANA implementation
- Conducting HANA readiness check
- Setting up business partner for HANA
- Developing the CONCUR-SAP interface
- Designing and configuring new payment methods
- Upgrading payment transaction formats
- Documentation with JIRA and Confluence
Holger D.
Last position:
Software Developer
- Gained familiarity with complex legacy software for controlling central ship systems (Ada, Java, C++).
- Implemented tests to identify memory leaks.
- Refactored existing project content and tests to object-oriented standards.
- Identified and fixed bugs in existing distributed Java and C++ applications on a DONAR/CORBA network.
- Products: Squish, NetBeans, MKS Integrity, DONAR, CORBA, DOORS, Windchill.
- Skills: Python, Java, Linux, C++, Ada.
Bharathi V.
Last position:
Senior Software Engineer (Individual Contributor) at European XFEL
- Electronic logbook app developed for research centers to maintain their investigations.
- Emphasizes user-driven organization of communication: experiment groups can configure information structure and notifications, while principal investigators maintain full access control.
- Real-time integration with the facility’s metadata catalogue, control system Karabo, and data analysis tool enables the automatic logging of key events, complemented by manual entries as needed.
Silke W.
Last position:
Head of Project Management and Consultancy at Systemtechnik GmbH
- Planning of projects and consulting services: professional, technical and commercial, focusing on transformation for public transport
- Identification and assessment of project risks with development of measures and recommendations for risk minimization and avoidance
- Evaluation of projects and reporting
- Execution of projects and delivery of consulting services on time, with required quality and within budget
- Project, hardware and consulting services forecasting
- Disciplinary and professional staff management
- Team development and coaching
- Resource planning across various locations
- Stakeholder management
- Client management with service and support
- Development of contingency plans
Nibedita N.
Last position:
Technical Consultant at Adobe Systems India Pvt. Ltd.
- Implemented AJO (Adobe Journey Optimizer)-AEP (Adobe Experience Platform) integration with AEM for an Australian Govt. project which has a significant business impact in terms of how AEP manages the customer data and engages the customer with AJO driven push notifications, Email etc.
- Developed a POC to integrate AEM-FTP and set up monitoring alert by Sling Job.
- Implemented Groovy scripts which help to modify the JCR nodes without touching the core code.
- Developed and optimized pipeline code for DEV deployment using Bitbucket. Enhanced security by modifying the pipeline to utilize repository variables from Bitbucket, effectively replacing all sensitive hardcoded values within the code repository.
- Implemented complex components such as Listicle component which dynamically fetch and display content from the experience fragments and leveraged sling model, services to streamline the integration process and created custom dialog validation for components which help me brush up my front-end knowledge as well.
- Created MCP tool for deleting old packages in higher environments e.g. UAT, stage as part of maintenance task.
- Implemented custom rollout configuration for a component which gets populated by experience fragments for all locales.
- Developed a custom solution where sitemap reads custom GWS URLs from the ACS commons list.
- Consistently created JUnit test classes as part of my day-to-day activity to increase code coverage for the entire code base.
- Explored on useful tools like Bulk Template/component updater tool, Content Sync tool (which can sync content from higher environment to local without creating any package) etc. and brought them to the team’s attention by documenting and providing demos on them.
- Gained limited experience on OneTrust, Lionbridge interface for AEM related cookie and translation tasks.
- Actively supported the team members in a cross-functional team and regularly participated to meet the code quality standards.
Folke M.
Last position:
Program Management and PMO for Core System Replacement at Vereinigte Hagel VVaG
Discover over 15,000 top freelancers
Statistics of experts using Object-Oriented Programming
Aggregated from the professional profiles of matched freelancers.
Experience
28 years (Germany: 22 years)
Position duration
1.9 years (Germany: 3.2 years)
Positions per freelancer
21 (Germany: 15)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Professional Services, Retail
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
90% (Germany: 89%)
Master's degree or higher
60% (Germany: 61%)
Doctorate
10% (Germany: 8%)
Certifications per freelancer
1 (Germany: 3)
Most common languages
English, German, French
Speak two or more languages
94% (Germany: 95%)
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Hamburg are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates of experts in Hamburg 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 29 Oct 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 (94%)
- Professional Services (56%)
- Retail (56%)
- Automotive (50%)
- Banking and Finance (50%)
- Healthcare (50%)
- Manufacturing (50%)
- Government and Administration (50%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Core approach
Object-Oriented Programming, often called OOP or object-oriented programming, structures software around objects that combine data with the behavior that operates on it. Classes define shared structure, while encapsulation protects state and inheritance or composition supports reuse. The approach helps teams represent business concepts directly in code and keep large systems understandable.
What it builds
OOP is used for applications that need clear domain models, evolving features and well-defined responsibilities. It appears in enterprise software, web backends, desktop products, games, mobile applications and embedded systems. The same principles can support new products or the gradual modernization of established codebases.
- Domain-driven business applications
- APIs, services and web backends
- Desktop, mobile and game software
- Financial, industrial and logistics systems
Languages and tooling
Professionals apply OOP differently across Java, C#, C++, Python, Ruby, Kotlin, Swift and TypeScript. Their work may include frameworks such as Spring, .NET, Django or Rails, supported by package managers, build tools, IDEs, linters and test suites. Version control, continuous integration and code review connect design decisions with reliable delivery.
When expertise helps
Companies bring in freelance specialists when a codebase has become difficult to change, a new product needs a sound domain model or an internal team needs support with a critical release. In Hamburg, this can include remote collaboration with distributed teams or on-site work where product, engineering and operations need close alignment. Clear English is common; German may matter for local stakeholders and documentation.
- Untangle tightly coupled classes and unclear dependencies
- Define interfaces, modules and service boundaries
- Improve testability and refactor legacy code
- Establish coding standards and review practices
Strong professional signals
Strong OOP professionals think beyond class hierarchies. They choose composition when it reduces coupling, use interfaces where substitution is valuable and keep abstractions proportional to the problem. They connect design patterns to a real business need rather than applying them by habit, and they explain trade-offs in terms that product and technical teams can use.
Delivery and collaboration
Good results depend on more than syntax. A capable specialist can inspect an unfamiliar repository, map dependencies, write focused tests and make incremental changes without breaking behavior. They document important design choices, measure the effect of refactoring and work comfortably with agile planning, code reviews and automated delivery pipelines.
Frequently asked questions
Questions about Object-Oriented Programming? Start with the answers below.
Object-Oriented Programming is used to structure software around objects that combine state and behavior. It is common in enterprise applications, APIs, desktop tools, games, mobile products and systems where business rules evolve over time.
OOP organizes responsibilities around objects and their collaborations, while functional programming emphasizes immutable data and pure functions. Many modern systems combine both styles, so the right choice depends on state management, domain complexity, team experience and the language ecosystem.
A strong object-oriented programming specialist should also understand software architecture, testing, version control and delivery automation. Depending on the project, useful adjacent skills include SQL, REST or GraphQL APIs, cloud services, domain-driven design and a relevant framework such as Spring or .NET.
The level of OOP experience should match the risk and complexity of the work. A focused feature may need a specialist who can work safely within an existing codebase, while a platform redesign calls for someone who can shape boundaries, migration steps, testing strategy and long-term maintainability.
Object-Oriented Programming work is usually well suited to remote collaboration because repositories, issue trackers, documentation and code reviews provide a shared working space. For Hamburg teams, agree early on communication windows, review practices and whether German is needed for stakeholder communication or documents.
A capable OOP freelancer may deliver domain models, class and interface designs, production code, automated tests, refactoring plans and technical documentation. The exact output should be linked to the project goal, such as improving changeability, reducing defects or preparing a legacy application for new features.
Ask how the object-oriented programming professional handles coupling, inheritance, composition, error handling and test design in a concrete scenario. Review examples of trade-offs they made, how they explain unfamiliar code and whether their proposed abstractions make the system easier to change rather than merely more elaborate.
OOP is not tied to one language. Java, C#, C++, Python, Ruby, Kotlin, Swift and TypeScript all support object-oriented techniques, but their type systems, runtime behavior and conventions differ, so choose a specialist who knows the language and framework used by your system.
The average hourly rate of freelancers in Hamburg, Germany who have used Object-Oriented Programming in their recent projects is 91 €, which corresponds to a daily rate of about 732 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used Object-Oriented Programming in their recent projects, 90% hold at least a Bachelor's degree, 60% hold at least a Master's degree, and 10% hold a doctorate.
On average, freelancers in Hamburg, Germany who have used Object-Oriented Programming in their recent projects have 28 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Hamburg, Germany who have used Object-Oriented Programming in their recent projects are English (100%), German (94%), and French (13%).
The most common industries among freelancers in Hamburg, Germany who have used Object-Oriented Programming in their recent projects are Information Technology (94%), Professional Services (56%), and Retail (56%).
The most common business areas among freelancers in Hamburg, Germany who have used Object-Oriented Programming in their recent projects are Information Technology (100%), Product Development (94%), and Project Management (81%).
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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