AspectJ Experts in Germany
in minutes from over 15,000 CVs with the power of AI.Hire experts who use AspectJ for cross-cutting concerns, aspect-oriented logging, security rules, and legacy Java code cleanup. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used AspectJ
Thomas Pawlitzki
Last position:
Freelance Software Architect at Self-employed
Michael König
Last position:
Atruvia AG
- Further development of framework components and services in the Enterprise Banking Control Platform (EGP Framework), a set of cross-cutting libraries and services for all bounded context scopes of the platform.
- Migration from Java 17 to Java 21 and from Spring Boot 3.2 to 3.4 in about 80 library and service repositories (updating Maven POMs, Dockerfiles, Jenkins pipelines, source code migration, test updates).
- Writing unit and integration tests with JUnit and JGiven.
- Performing and analyzing performance measurements with Dynatrace.
- Enhancing multi-stage CI/CD pipelines (unit tests, security analyses, Docker builds, Harbor deployments, ...).
- Tech stack used: Java (90%), Python (10%), Spring Boot, JPA/Hibernate, JGiven, OpenAPI, Camunda 7, Podman, OpenShift/Kubernetes, Oracle DB, SonarQube, Dynatrace, Jenkins, Harbor, Bitbucket, Jira, Confluence.
Jacqueline Haefke
Last position:
Kitchen Appliance Manufacturer
Setting up and enhancing an international subscription management system
Migrating and decommissioning a Hybris-SAP system and integrating Zuora
Implementing numerous interfaces to various systems (external and internal)
Setting up and improving monitoring with Grafana, Prometheus, and Databricks
Introducing logging with Loki
Implementing business requirements using jQuery, Thymeleaf, Spring Boot, Java, Go, and Python
Adjusting and extending the GitLab CI pipelines
Setting up and extending infrastructure as code with Terraform and ArgoCD on AWS
Setting up and running E2E and performance tests
Expanding the Databricks business intelligence solution to provide various KPIs
Responsibilities: Architecture, DevOps, development, unit tests, coaching employees and apprentices, E2E, smoke, and integration tests, agile methods consulting (Kanban, Scrum)
Technologies and methods: Java, Go, Kotlin, Node.js, Spring Boot, SOAP/REST, Quarkus, Thymeleaf, Vaadin, Slack, Jira, Confluence, IntelliJ, GitLab, SQS, Kafka, AWS, Kubernetes, Terraform, Maven, Gradle, GitLab CI, Databricks
Christof Nasahl
Last position:
Senior Developer at Otto GmbH
- Further development of personalized advertising spaces on the Otto web shop
- Full-stack development in a Kanban-driven team of about 15 people
- Technologies: Microservices, Kotlin, Spring, Spring Boot, Gradle, MongoDB, HTML, JS, Node, SCSS, AWS
- Development process: Kanban; continuous integration with AWS CodePipeline and GitHub Actions
Janusz Mazurek
Last position:
IoT Edge Computing / Self-Driving-Cars at Automotive consulting company
- Platform: Python ecosystem, RHEL 8, K10, AWS IoT Core, AWS Lambda, MLOps
- Software: Java JEE/cloud, IntelliJ IDEA, AWS IoT Core, AWS Edge and Lambda, AWS SageMaker SDK, Docker Compose, Kubernetes, OpenShift 4, Tekton, Flux, Helm charts, JSON/XML technology, Nginx, Apache Spark, OpenAI (GPT Plus, DALL-E 3, Whisper), GAN, GitHub Copilot, AI/machine and deep learning, Jupyter notebooks, TensorFlow 2, Colab, Keras API, Prometheus, Grafana, Conda, Python 3.9, PySci stack (NumPy, pandas, Scikit-learn, matplotlib)
- Responsible for webinar:
- IoT edge computing: architecture, components, resources, management
- IoT edge computing with MicroK8s, designing and creating flows/diagrams for AWS, three-step model for IoT ecosystem
- IoT processes, connectivity, data transfer and deployment, security
- Optimization of edge computing for IoT networks and services (AWS SQS queue, SNS notifications, events, analytics, buttons, device management/defender, Things Graph)
- Machine/deep learning frameworks (models, training, pipeline optimization, deployment in the cloud/at the edge (OpenShift), monitoring workloads with Prometheus and Grafana)
- Performance optimization for low latency/resilience using adaptive ML/DL/RL models for customer IoT data
- Analysis of large sensor data sets with Apache Spark, Kafka clusters
- Kasten K10 data management platform on Kubernetes multi-cluster with Helm chart, deployment, backup/disaster recovery (RTO/RPO), data lifecycle and security management
- Implementation of multilayer artificial neural network (ANN) with TensorFlow 2 and Colab for regression and classification; data analysis and provisioning for applications; development of models for testing and training, deployment of models
- Automation of business streamline processes with AI (Azure OpenAI, Discord bots/Zapier apps AI assistants (IntelliJ, GitHub Copilot))
Henning Petersen
Last position:
Backend Systems Development at Deutsche Bank/DWS/Morgenfund
- Developed backend systems for the DWS Investment App, a white-label investment solution (robo-advisor), and an investment solution for institutional clients.
- Java 8-17, Kotlin, Spring Boot, Spring MVC, OpenAPI 3.0, JPA, JDBI, Oracle, Hazelcast, JXLS, Apache POI, Apache PDFBox, Apache Kafka & Avro, Active MQ, Elasticsearch, React Native, Spock Test, IntelliJ IDEA, Kubernetes, Helm, Microservices/Netflix-Stack, TeamCity, Splunk.
- Kanban team, continuous integration.
- Migrated existing applications from Deutsche Bank's private cloud environment to Azure as part of a carve-out.
Discover over 15,000 top freelancers
Statistics of experts using AspectJ
Aggregated from the professional profiles of matched freelancers.
Experience
25 years
Position duration
2 years
Positions per freelancer
15
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Automotive
Certification focus areas
Information Technology, Product Development, Operations
Bachelor's degree or higher
100%
Master's degree or higher
75%
Doctorate
25%
Certifications per freelancer
2
Most common languages
German, English, Polish
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 Germany 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 Germany using AspectJ
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
Aspect-oriented Java work
AspectJ adds aspect-oriented programming to Java. It is used when cross-cutting logic should stay separate from business code. Teams bring in specialists for logging, security checks, tracing, transaction rules, and code that must stay consistent across many modules.
Where it fits
- Clean up repeated logging and monitoring code
- Add security or policy checks around key methods
- Handle transactions, retries, and tracing
- Keep legacy Java systems maintainable
AspectJ is common in large enterprise codebases, especially where plain Java frameworks need sharper control over behavior.
Ecosystem and tooling
AspectJ works with the Java compiler and the AspectJ weaver. Strong professionals know pointcuts, advice, join points, and weaving, and they understand how these pieces affect build steps and runtime behavior. They also know where Spring AOP is enough and where full AspectJ is the better fit.
When freelancers help
Companies often bring in freelance specialists when an existing Java system has grown hard to change. In Germany, this is common in enterprise environments that need careful maintenance, on-site reviews, or remote support for mixed teams. Freelancers can also help when an internal team needs a safe design for new aspects without breaking production code.
What good work looks like
- Clear pointcuts with limited scope
- Advice that is easy to test and review
- No hidden side effects in woven code
- Build and runtime setup that the team can support
Good AspectJ professionals write aspects that solve one problem well. They avoid overuse and keep the base code readable.
Skills around it
AspectJ specialists usually also know Java, Spring, Maven or Gradle, debugging, and application design. They should be able to explain how aspects interact with proxies, annotations, and package structure. For older systems, knowledge of source weaving and incremental refactoring is especially useful.
Frequently asked questions
What clients ask us most about AspectJ — answered in short.
AspectJ is used to move cross-cutting behavior out of business classes and into aspects. That is useful for logging, security, tracing, transaction handling, and other rules that repeat across many parts of a system. It helps keep core Java code smaller and easier to read.
AspectJ is more powerful than Spring AOP because it can weave code at compile time or load time, not only through proxies. That matters when you need to advise more places or work with code that proxy-based AOP cannot reach. Spring AOP is simpler, but AspectJ is usually the deeper tool.
A strong AspectJ specialist should know Java well, plus Spring, build tools such as Maven or Gradle, and debugging in enterprise systems. Knowledge of weaving, proxies, annotations, and code review practices also helps. In older systems, refactoring and legacy maintenance experience are valuable.
AspectJ experience matters most when aspects are part of the system design, not just a small experiment. If you need reliable weaving, careful pointcut design, or a safe migration in an existing codebase, you want a specialist who has done it before. Simple logging can be easy; production-grade aspect design is not.
Yes. AspectJ work is often done well remotely because the main tasks are design, review, build configuration, and debugging. In Germany, some teams still want on-site workshops for legacy systems, but remote collaboration is very common for implementation and follow-up support.
Look for a AspectJ professional who can explain pointcuts, advice, join points, and weaving in plain words. Good signs are small, testable aspects, a clear fit with the build process, and awareness of when not to use weaving. Ask for examples from real Java systems, not only theory.
Yes, AspectJ still has a place in modern Java when cross-cutting logic needs stronger control than proxy-based tools offer. It is especially useful in enterprise systems, library code, and legacy applications that need careful change management. It is less about trends and more about the right technical fit.
A good AspectJ specialist will ask where the aspects will run, how the code is built, and whether the team expects compile-time or load-time weaving. They should also ask which modules are safe to touch and what must stay untouched. That prevents surprises in production and keeps the design maintainable.
The average hourly rate of freelancers in Germany who have used AspectJ in their recent projects is 99 €, which corresponds to a daily rate of about 790 € based on an 8-hour working day.
Of the freelancers in Germany who have used AspectJ in their recent projects, 100% hold at least a Bachelor's degree, 75% hold at least a Master's degree, and 25% hold a doctorate.
On average, freelancers in Germany who have used AspectJ in their recent projects have 25 years of professional experience, with a single engagement typically lasting around 2 years.
The most common languages among freelancers in Germany who have used AspectJ in their recent projects are German (100%), English (100%), and Polish (17%).
The most common industries among freelancers in Germany who have used AspectJ in their recent projects are Information Technology (100%), Banking and Finance (83%), and Automotive (50%).
The most common business areas among freelancers in Germany who have used AspectJ in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (83%).
Main locations of FRATCH Experts, who have recently used AspectJ
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.
Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
