Jakarta Persistence (JPA) Experts in Austria
in minutes with the power of AIWork with specialists who master complex ORM architectures, database performance tuning, and Hibernate integration, matched precisely to your stack through vetted freelancer screening.
Meet FRATCH Experts in Austria, who have recently used Jakarta Persistence (JPA)
John A.
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.
Michail M.
Last position:
OpenShift Specialist, Developer at Insurance
Project goal: Introduce OpenShift as the run-time platform and migrate all applications to OpenShift.
My contribution: Make sure logging and monitoring for the applications were in place. Set up and put into operation the OpenShift components for logging and monitoring (Elasticsearch, Prometheus, and Grafana). Develop and implement the security concept for OpenShift. Work with developers to define and carry out the application changes needed for the OpenShift migration. Integrate monitoring into the applications.
Technical environment: Java, WebSphere Liberty, OpenShift components, Elasticsearch (ELK stack), Prometheus, Grafana.
Peter S.
Last position:
Lead Software Architect at Pritz IT GmbH
- Lead software architect in a greenfield MES project (Manufacturing Execution System / factory control system), responsible for architecture decisions, technology selection, and technical direction throughout the entire development lifecycle
- Designed and built the core framework from scratch, including several reusable Spring Boot starters (e.g., OPC-UA integration, messaging, security) that enable flexible composition of the individual system modules
- Introduced Keycloak as the central authentication and authorization system with SSO across all MES components
- Created and owns the full CI/CD pipeline covering Java, NPM and Docker – automating build, test, containerisation and deployment across all project components
- Set up the architecture documentation space in Confluence as the single source of truth for all architecture decisions, component designs, and integration patterns
- Defined and enforced naming conventions and coding standards to ensure consistency in the growing codebase
- Conducted regular code reviews for quality assurance, knowledge sharing, and adherence to architecture guidelines
- Created and maintained technology roadmaps to guide future development priorities and infrastructure investments
Ãœsame T.
Last position:
Java Backend Developer at Porsche Informatik
- Java EE 8 development
- Java 21 and Spring Boot 3 microservices development
- Release management
- Onboarding of new team members
- Owner of an team-internal "Best Code Engineering Award"
Jaroslav A.
Last position:
Child care, personal development and learning
Joseph W.
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.
Attila D.
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 A.
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
Aaron H.
Last position:
Career Break
- Big move, focus on DIY hobbies, small personal software projects.
Monji M.
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
Florian J.
Last position:
Senior Android Consultant at Bragi GmbH
- Working within a cross-functional team developing upgrades for in-app features
- Android app development since 2016
- App: Skull IQ & many more
Discover over 15,000 top freelancers
Statistics of experts using Jakarta Persistence (JPA)
Aggregated from the professional profiles of matched freelancers.
Experience
22 years
Position duration
2.9 years
Positions per freelancer
8
Top business areas
Information Technology, Product Development, Operations
Top industries
Information Technology, Insurance, Transportation
Certification focus areas
Information Technology, Project Management, Business Intelligence
Bachelor's degree or higher
70%
Master's degree or higher
40%
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
100%
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 Austria 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 Austria using Jakarta Persistence (JPA)
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.
Jakarta Persistence (JPA) 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%)
- Insurance (73%)
- Transportation (45%)
- Government and Administration (45%)
- Telecommunication (45%)
- Professional Services (27%)
- Automotive (18%)
- Education (18%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Enterprise Data Management with Jakarta Persistence
Jakarta Persistence, formerly known as Java Persistence API, provides the standard specification for object-relational mapping in Java and enterprise JVM environments. It bridges business logic with relational databases, allowing teams to handle data access through expressive entity models rather than low-level JDBC queries.
Core Tooling and the ORM Ecosystem
- Reference and provider runtimes such as Hibernate ORM, EclipseLink, and OpenJPA
- Integration frameworks including Spring Data JPA, Quarkus Panache, and Jakarta EE servers
- Schema migration and versioning tools like Flyway and Liquibase
- Advanced querying mechanisms using JPQL, Jakarta Criteria API, and native SQL fallbacks
When Organizations Need Dedicated JPA Expertise
Companies bring in specialized talent when scaling database operations or resolving severe latency bottlenecks. Production systems frequently suffer from issues such as unintended N+1 query cascades, improper transaction boundaries, and unoptimized entity relationship graphs that require deep specification insight to fix.
Technical Deliverables and Architectural Impact
Specialists define clean persistence architectures that safeguard data integrity under heavy transaction volumes. Key deliverables include entity lifecycle management, multi-tenant database designs, distributed second-level caching configurations with tools like Hazelcast or Ehcache, and resilient batch processing pipelines.
Austrian Enterprise Adoption and System Demands
In Austria, robust persistence layers are vital across financial services in Vienna, public sector administration, and industrial logistics hubs in Upper Austria. Organizations operating mixed cloud and on-premise relational databases prioritize specialists capable of balancing strict European regulatory compliance with high-throughput database operations.
Distinguishing Attributes of Senior JPA Specialists
Seasoned professionals look past simple repository abstractions to analyze the underlying SQL generated by the persistence provider. They demonstrate mastery over transaction isolation levels, optimistic and pessimistic locking patterns, flush modes, and memory management during large-scale enterprise data mutations.
Frequently asked questions
Everything clients usually want to know about Jakarta Persistence (JPA), in one place.
Modern enterprise applications rely on Jakarta Persistence (JPA) to manage data transactions between relational databases and Java applications. It abstracts SQL complexities through standardized annotations, entity graphs, and managed persistence contexts, ensuring code portability across varied relational database engines.
JPA functions as the official specification defining interfaces and standard metadata rules, whereas Hibernate ORM serves as the most widely adopted implementation of that standard. Projects typically write application code against standard interfaces while leveraging provider-specific optimizations underneath.
Experienced Jakarta Persistence professionals utilize techniques like entity graphs, join fetches, and batch size tuning to prevent redundant database queries. They analyze query execution profiles to ensure related entities are retrieved efficiently in unified, performant database trips.
Teams select Jakarta Persistence (JPA) for domain-driven applications with complex entity relationships, automated transaction rollbacks, and intensive business workflows. For simple reporting or read-mostly microservices, lightweight libraries like jOOQ or MyBatis might be used to maintain direct control over every SQL string.
A solid foundation alongside JPA includes deep SQL optimization skills, knowledge of transaction management, database schema design, and runtime frameworks like Spring Boot or Jakarta EE. Familiarity with database migration tools such as Flyway is equally critical for continuous deployment pipelines.
The migration to modern Jakarta Persistence involved changing the package namespace from javax.persistence to jakarta.persistence. Specialists navigate these namespace shifts seamlessly during major framework upgrades across application servers and standalone Spring services.
Yes, Jakarta Persistence specialists integrate well remotely into Austrian organizations through disciplined code reviews, database schema PRs, and asynchronous technical handoffs. Teams in cities like Vienna or Graz often maintain hybrid schedules, making fluency in English and German a standard advantage.
Evaluate how candidates explain persistence context lifecycles, dirty checking mechanisms, and caching tiers in JPA. Outstanding specialists can clearly describe the performance trade-offs between detached entities, write-behind caching strategies, and explicit query locking mechanisms.
The average hourly rate of freelancers in Austria who have used Jakarta Persistence (JPA) in their recent projects is 91 €, which corresponds to a daily rate of about 726 € based on an 8-hour working day.
Of the freelancers in Austria who have used Jakarta Persistence (JPA) in their recent projects, 70% hold at least a Bachelor's degree and 40% hold at least a Master's degree.
On average, freelancers in Austria who have used Jakarta Persistence (JPA) in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 2.9 years.
The most common languages among freelancers in Austria who have used Jakarta Persistence (JPA) in their recent projects are German (100%), English (100%), and French (18%).
The most common industries among freelancers in Austria who have used Jakarta Persistence (JPA) in their recent projects are Information Technology (100%), Insurance (73%), and Transportation (45%).
The most common business areas among freelancers in Austria who have used Jakarta Persistence (JPA) in their recent projects are Information Technology (100%), Product Development (100%), and Operations (45%).
Main locations of FRATCH Experts, who have recently used Jakarta Persistence (JPA)
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.
Vienna Graz 
Vienna Countries:
- Germany
- Austria
- Switzerland
Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
