Hibernate Experts in Vienna
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Meet FRATCH Experts in Vienna, who have recently used Hibernate
John Ampia-Addison
Last position:
Software Developer and DevOps Engineer at Bundesrechenzentrum (BRZ)
Refactoring and improving core APIs; implementing client change requests. Setting up metrics, traces, and logs monitoring infrastructure to support operations. Designing GitOps deployment and infrastructure as code. Applications and Systems Configuration in ArgoCD and Openshift. Confluence documentation of design, approach, and solution. Tech Stack: Java 8 & 21, Spring framework, JSP, Javascript, Bash Scripts, SQL, Grafana Stack, Opentelemetry, Docker, DB2, Maven, Kubernetes Kompose.
Joseph Wagner
Last position:
Freelancer Cloud / Solution Architect (AWS) at A1 Bank
- I am responsible for providing solution architecture and technical assistance for a migration initiative aimed at transitioning to a new core banking system.
- The project involves replacing in-house development with a commercially available off-the-shelf core banking system operated as SaaS on AWS.
- Duties encompass solution design, technical coordination, supporting development teams, and providing IT support and troubleshooting.
- Managing over 10 global vendors and partners is crucial to project success.
- Technologies: VMWare ESXi, AWS, EKS Kubernetes, Mastercard Payment Transaction Service, Avaloq, A1 Telekom Austria infrastructure, CheckPoint FW, F5, Site-to-Site VPNs, PingID, Futurae SDK, Airlock, UC4/Automic, Firebase, iOS/Android lifecycle management, AWS IAM, AWS AppStream, AWS S3, AWS Transfer Family, QlikView, OpenAPI.
Vladislav Filipic
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
Attila Danics
Last position:
Full-Stack Software Engineer at Research Data Evaluation
- Custom anonymized research data analyzer, providing insights and facilitating data-driven decision-making.
- Designed and developed back- and frontend.
- Delivered end-to-end solution.
- Accelerated research timeline by 2 months.
Javid Asgarov
Last position:
B2B Contract - Senior Fullstack developer (Java + Angular)
- Project: E-Platform with 100k users
- Skills: Java, Spring, Spring Boot
- TechStack: Angular 18, Java 17, Spring Boot, Oracle DB, Spring Data, JPA, Hibernate, Oracle, Postgres, SQL
Monji Midani
Last position:
Senior Software Developer at AMA Wien
IT concept
Implementation
Estimation
Design
Installation
Oracle APEX applications for farmers in Austria to register their products and get subsidies.
Implement new applications or adapt existing applications according to customer requirements (CR)
Fix bugs
Update data in the database
Install applications
Technologies/methods used: Oracle DB, PL/SQL, DM, Oracle Apex, JavaScript, CSS, OpenLayers, GIT
Discover over 15,000 top freelancers
Statistics of experts using Hibernate
Aggregated from the professional profiles of matched freelancers.
Experience
21 years
Position duration
2.5 years
Positions per freelancer
9
Top business areas
Information Technology, Product Development, Operations
Top industries
Information Technology, Transportation, Insurance
Certification focus areas
Information Technology, Business Intelligence, Product Development
Bachelor's degree or higher
60%
Master's degree or higher
40%
Certifications per freelancer
4
Most common languages
German, English, French
Speak two or more languages
100%
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Vienna 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 Vienna using Hibernate
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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Hibernate in practice
Hibernate is a Java ORM framework for working with relational databases through objects instead of hand-written SQL everywhere. Teams use it to map domain models, persist entities, and keep data access consistent across services and monoliths.
What specialists deliver
- Entity mapping and inheritance design
- JPA-based repositories and query logic
- Transaction handling and session management
- HQL, Criteria API, and native query support
- Fetch strategy and lazy loading cleanup
Ecosystem and tooling
Strong professionals work with Hibernate ORM, JPA, and the surrounding Java stack. They often pair it with Spring Boot, JDBC, Flyway or Liquibase, and database tools for PostgreSQL, MySQL, Oracle, or SQL Server.
When companies bring help
Teams usually look for freelance expertise when a data layer becomes hard to maintain, queries slow down, or mapping rules spread across the codebase. In Vienna, this often comes up in enterprise systems, finance, logistics, and other Java-heavy environments where clear persistence rules matter.
What strong experts know
A good Hibernate specialist understands entity state, flush behavior, caching, and how session scope affects correctness. They can read execution plans, reduce N+1 query problems, and decide when Hibernate fits and when a more direct SQL approach is better.
Hiring for the right fit
- Clean understanding of JPA and Hibernate ORM
- Practical database and SQL knowledge
- Experience with Spring applications and testing
- Ability to explain trade-offs clearly
- Comfortable remote collaboration or on-site work in Vienna
Frequently asked questions
Everything clients usually want to know about Hibernate, in one place.
Hibernate is used to persist Java objects in relational databases with less manual SQL in the application code. It helps teams keep a domain model, transaction handling, and query logic in one coherent persistence layer.
Hibernate is an ORM implementation, while JPA is the standard API that many teams code against. Compared with plain JDBC, Hibernate reduces boilerplate and speeds up common data access work, but JDBC can still be the better choice for very specific or highly tuned queries.
Yes, often. Hibernate is commonly used under Spring Boot, and a specialist can fix mapping issues, lazy loading problems, and query bottlenecks that are easy to miss when the app still seems to work. They also help align the persistence layer with Spring transaction handling.
A strong Hibernate freelancer usually brings solid SQL, JPA, and Java knowledge. Experience with PostgreSQL, MySQL, Oracle, migration tools like Flyway or Liquibase, and testing frameworks also helps because persistence work rarely happens in isolation.
A small feature task may only need targeted help, but a messy data layer usually needs someone who has seen production Hibernate problems before. Look for a specialist who can explain entity lifecycle, caching, fetching, and query design in plain terms, not just add annotations.
Yes. Hibernate work is well suited to remote collaboration because mapping review, query analysis, and code changes can be shared clearly through the repository and issue tracker. On-site time in Vienna can still help when teams need deeper sessions around legacy persistence design or database access patterns.
Ask for examples of problems they have solved, such as N+1 queries, incorrect cascading, or slow transaction flows. A strong Hibernate specialist should talk about trade-offs, not just syntax, and should know when to use HQL, Criteria, native SQL, or a simpler approach.
Hibernate is the framework name people usually mean when they say Hibernate. Hibernate ORM is the full product name, while HQL is one of the query languages used with it. A good freelancer should be comfortable with all three terms and know how they fit together in a Java persistence stack.
The average hourly rate of freelancers in Vienna, Austria who have used Hibernate in their recent projects is 92 €, which corresponds to a daily rate of about 733 € based on an 8-hour working day.
Of the freelancers in Vienna, Austria who have used Hibernate in their recent projects, 60% hold at least a Bachelor's degree and 40% hold at least a Master's degree.
On average, freelancers in Vienna, Austria who have used Hibernate in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 2.5 years.
The most common languages among freelancers in Vienna, Austria who have used Hibernate in their recent projects are German (100%), English (100%), and French (33%).
The most common industries among freelancers in Vienna, Austria who have used Hibernate in their recent projects are Information Technology (100%), Transportation (83%), and Insurance (67%).
The most common business areas among freelancers in Vienna, Austria who have used Hibernate in their recent projects are Information Technology (100%), Product Development (100%), and Operations (50%).
Main locations of FRATCH Experts, who have recently used Hibernate
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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Philipp Thomaschewski
FRATCH CEO
