Object-Oriented Programming Experts in Vienna
, matched in minutes from over 15,000 CVs with the power of AIHire experts who design maintainable class hierarchies, domain models and reusable components across Java, C#, C++, Python and other object-oriented ecosystems. FRATCH matches you quickly and precisely with vetted, available freelance professionals.
Meet FRATCH Experts in Vienna, who have recently used Object-Oriented Programming
Alexander P.
Last position:
Owner & Lecturer at Artellico / Own Company for AI Governance and Data Products
- Consulting and interim management at the intersection of IT operations and regulation
- Impact analysis and implementation planning for NISG 2026 and EU AI Act, including risk management and reporting and evidence processes
- Training for governing bodies and employees on regulatory obligations
- Teaching assignments in Data & Information Management and Human-Machine Interaction at Hochschule Burgenland, since 2023
- Supervision of master’s theses and participation in the examination board
- Expert presentations in business and educational institutions
- Design and development of data and AI products, platforms and pipelines
- Privacy-first architectures and Zero-Knowledge Encryption, cloud-native on EU infrastructure
- Connection to bank account systems via SEPA direct debit mandates and message formats according to ISO 20022 (pain.008, camt.053)
- MLOps and AIOps in ongoing operations
- Own applications under own brand: shared code base, separate delivery for each target device
- AI-assisted software development (vibe-coding), complete agentic pipelines, code generation, implementation, automated testing, CI/CD and release cycles
- Publications on EU AI Act, NIS2, DORA, CRA and CER as an integrated governance system
- Publications on data sovereignty, cloud economics and industrial image processing
- AI Governance / Compliance: Data Quality, Responsible AI, EU AI Act Readiness, Risk Classification, AI Ethics
Vehid D.
Last position:
Software Developer – Medical Laboratory Equipment at Agilent
Develop .NET software for medical and laboratory instrumentation, focusing on AI-assisted analysis within regulated diagnostic workflows. Design and implement C#/.NET services for instrument control, data acquisition, and results processing. Integrate AI-assisted anomaly detection into data pipelines, enhancing early identification of measurement irregularities and minimising manual review effort. Translate regulatory requirements into technical specifications and acceptance criteria.
- Build and maintain automated test suites and CI/CD workflows, utilising AI-assisted test generation to improve coverage and reduce release cycles.
- Collaborate with cross-functional teams in hardware, firmware, and QA for system integration and validation.
- Utilise technologies including C#/.NET, AI/ML integration, REST APIs, SQL, and Unit Testing.
Michael G.
Last position:
Scrummaster at Xenovo
Planning and monitoring sprints and holding the scheduled meetings
Analyzing and resolving issues in the development process
Error analysis, bug management and correction in individual process steps
Stakeholder management
Documentation and improvement of the development process
Tools: JIRA, Confluence
Kalysbek A.
Last position:
ABAP and Fiori Developer at Hugo Boss AG
- Analysis of business needs, technical specifications and development of solutions within SAP S/4HANA
- Application development and maintenance with ABAP OO, SAP Gateway Builder, CDS Views, AMDP, Fiori, BRF+, SAP Fiori, RAP
- Refactoring, design and implementation of development objects from existing SAP-AFS infrastructure to new S4/HANA Fashion system
- Test driven development using ABAP Unit Test framework and peer reviews
- Extension of Fiori apps, standard programs, exits, BAdIs and enhancements
- Adaptation and performance optimization of ABAP custom code to make it HANA optimized
- Comprehensive technical documentation of concepts and solutions
Vladislav F.
Last position:
Senior Test Automation Engineer / Test Manager at Stadt Wien – WUKSEA
- Creating test scenarios, manual test cases and test data using boundary value analysis and equivalence classes
- Executing functional and non-functional tests (manually with Postman and web application, automated with WebDriver, JUnit and NUnit)
- Setting up, automating and maintaining the test automation framework with Java, Spring Boot, Selenium and Cucumber in IntelliJ (system, regression, smoke, UI and integration tests for web front-end and SOAP API backend interfaces)
- Automating backend NUnit test cases in Visual Studio
- Test management: developing and implementing test strategy and test plans, controlling tests, quality ownership and prioritizing risk-based tests, as well as maintaining documentation in Confluence
- Detailed analysis and quality assurance of requirements
- Creating and maintaining Jenkins pipelines, ensuring quality in build & deployment
- Close collaboration with business analysts, developers, testers and test management
- Identifying, creating and tracking defects/bugs, with thorough test documentation
- Reporting test results and defect reports
- Monitoring test processes and continuous improvements
- Reviewing test data and test results in PostgreSQL database via pgAdmin
- Supporting effort estimation and backlog prioritization
- Analyzing and debugging development code System environment: Java, JUnit, Spring Boot, Selenium, Cucumber, JavaScript, Jenkins, C#, NUnit, Postman, Bitbucket, Confluence, Jira, xRay, pgAdmin, PostgreSQL, SonarQube, Maven, IntelliJ, Visual Studio, CI/CD, SOAP API interfaces
Sina D.
Last position:
Computer Vision Specialist at Mission Embedded
- Developing C++ packages for high-frequency video streaming.
- Contributing to the development of assistance systems for industrial applications.
- Designing and implementing sensor fusion solutions.
- Creating simulation models to generate synthetic data for AI training.
- Conducting research on advanced image processing techniques.
Natalie M.
Last position:
Managing Director at Metzinger & Partner Management Consulting GmbH
Discover over 15,000 top freelancers
Statistics of experts using Object-Oriented Programming
Aggregated from the professional profiles of matched freelancers.
Experience
17 years
Position duration
2 years
Positions per freelancer
9
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Education, Energy
Certification focus areas
Logistics, Information Technology, Project Management
Bachelor's degree or higher
100%
Master's degree or higher
67%
Certifications per freelancer
3
Most common languages
German, English, Spanish
Speak two or more languages
100%
Based on our profile pool as of 16 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Vienna 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 Vienna 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 16 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 (100%)
- Education (50%)
- Energy (50%)
- Banking and Finance (50%)
- Manufacturing (50%)
- Professional Services (50%)
- Government and Administration (50%)
- Automotive (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Core concept
Object-Oriented Programming, commonly called OOP, organizes software around objects that combine state and behavior. Specialists model business concepts as classes and define how objects interact through methods, interfaces and clear boundaries. Encapsulation protects internal data, while inheritance and polymorphism support controlled reuse when applied carefully.
What it builds
OOP supports long-running applications where structure, changeability and domain rules matter. It is common in enterprise platforms, desktop software, mobile applications, games, financial systems and embedded products.
- Business applications with rich domain models
- APIs and backend services with clear responsibilities
- Desktop and mobile applications with reusable components
- Game systems, simulations and device software
Ecosystem and tooling
The approach appears across Java, C#, C++, Python, Ruby, Kotlin, Swift and TypeScript, with each language shaping its use differently. Work often includes frameworks such as Spring, .NET, Qt, Django or Rails, alongside package managers, test libraries, static analysis and integrated development environments. Strong specialists understand both language features and the runtime around them.
When expertise matters
Companies bring in freelance specialists when a codebase has unclear responsibilities, fragile inheritance or growing duplication. Expertise is also useful during a migration from procedural code, a domain redesign, a new product build or a review of architecture and testing practices. In Vienna, local teams may value on-site workshops, while distributed projects often run effectively through documented decisions and regular remote sessions.
- Refactor tightly coupled classes
- Define interfaces and domain boundaries
- Introduce testing around critical behavior
- Review design patterns for practical fit
Signs of quality
A strong professional chooses composition over inheritance when it reduces coupling and keeps abstractions useful. They can explain why a class owns a responsibility, identify unwanted dependencies and keep public interfaces stable. They also connect design choices to deployment, performance, security and the team’s ability to maintain the system.
Project collaboration
Before work starts, agree on the domain language, target runtime, coding standards and definition of done. A specialist should make existing design assumptions visible, deliver changes in reviewable increments and leave behind tests and documentation that support the team. Clear communication matters whether collaboration takes place in a Vienna office, across Europe or fully remotely.
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 represent data and behavior. It suits enterprise applications, APIs, desktop tools, games, mobile products and systems with complex business rules.
OOP groups state and behavior around objects, while functional programming emphasizes transformations with limited mutable state. Procedural programming organizes logic around procedures and sequences. The right choice depends on the domain, language, team skills and how the system is expected to change.
A strong Object-Oriented Programming specialist usually brings knowledge of software design, testing, version control, databases and API design. Experience with a relevant language, framework, build system and deployment environment is equally important.
The need depends on the codebase and the risk of the work, not on a fixed duration. A smaller feature may need a specialist who can work within established conventions, while a redesign or legacy refactoring benefits from someone who can assess architecture, dependencies and migration paths.
Object-Oriented Programming work is often well suited to remote collaboration because code review, testing and design documentation can be shared online. On-site sessions in Vienna can still help with domain discovery, architecture workshops and alignment with stakeholders. Language expectations should be agreed before the project begins.
Ask the specialist to explain a past design decision, including the trade-offs around inheritance, composition, coupling and testing. Review whether their examples show understandable abstractions, stable interfaces and practical documentation rather than patterns used for their own sake.
Bring in an Object-Oriented Programming expert when a system is difficult to change, domain rules are scattered or classes have unclear responsibilities. External expertise can also help set design standards for a new product or guide a safe refactoring without interrupting delivery.
OOP is a programming approach rather than a single language or product. Java, C#, C++, Python, Ruby, Kotlin, Swift and TypeScript all support object-oriented techniques, although their type systems, runtime models and preferred design practices differ.
The average hourly rate of freelancers in Vienna, Austria who have used Object-Oriented Programming in their recent projects is 93 €, which corresponds to a daily rate of about 745 € based on an 8-hour working day.
Of the freelancers in Vienna, Austria who have used Object-Oriented Programming in their recent projects, 100% hold at least a Bachelor's degree and 67% hold at least a Master's degree.
On average, freelancers in Vienna, Austria who have used Object-Oriented Programming in their recent projects have 17 years of professional experience, with a single engagement typically lasting around 2 years.
The most common languages among freelancers in Vienna, Austria who have used Object-Oriented Programming in their recent projects are German (100%), English (100%), and Spanish (33%).
The most common industries among freelancers in Vienna, Austria who have used Object-Oriented Programming in their recent projects are Information Technology (100%), Education (50%), and Energy (50%).
The most common business areas among freelancers in Vienna, Austria who have used Object-Oriented Programming in their recent projects are Information Technology (100%), Product Development (83%), and Quality Assurance (67%).
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.
Countries:
Vienna 
Graz Request a free demo
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