Domain-Driven Design Experts in Frankfurt
in minutes from over 15,000 CVs with vetted specialists and the power of AI.Hire experts who turn business rules into clear bounded contexts, aggregate models, and language your teams can maintain. They support greenfield systems, legacy refactoring, and architecture decisions with fast, precise matching to vetted, available freelancers.
Meet FRATCH Experts in Frankfurt, who have recently used Domain-Driven Design
Waseem Sattar
Last position:
Solution Architect / Subject Matter Expert at FRMCS terminal device manufacturer
Participation in the EU-funded MORANE-2 project to validate the Future Railway Mobile Communication System (FRMCS) in real-life use cases: creation of the requirement specifications for TOBA as well as the associated test specifications.
Technologies: 5GS (Radio & Core), FRMCS, MCx (MCPTT, MCData, MCVideo), MC Gateway UE, MCx Priority/Security/QoS Management, ETCS, SIP, IMS
Umut GĂĽlac
Last position:
Data Architect at BA Technology
I am an experienced data engineer specializing in end‑to‑end data integration, cloud DWH architectures, and high‑quality, governed data products.
I delivered following projects and engagements as a freelancer.
- Data Migration of CRM System for AL-FA Objekt Service Gmbh
- Microsoft Software Resales Partnership
I am looking for freelance roles like: Freelance Data Engineer Cloud Data Warehouse Architect Data Modeling & Architecture Consultant MDM & Data Governance Specialist BI & Analytics Developer
Technical Focus Areas
- Data Engineering & Integration: SQL Server/SSIS, Informatica PowerCenter/IDQ, Talend, Kafka, Azure Data Factory – Delta/CDC/ELT patterns, robust pipelines, monitoring/recovery, data lineage & impact analysis, medallion architecture Bronze/Silver/Gold layers
- DWH & Cloud: Azure SQL / Data Lake / Synapse, AWS Redshift/S3, on‑prem SQL/Oracle – scalable data marts with a strong cost/benefit focus.
- Data Modeling: Atomic (Inmon) and Dimensional (Kimball), Data Vault (Linstedt), Domain‑Driven Design, clear lineage & contracts.
- MDM & Governance: Informatica MDM, IBM MDM, stewardship processes, data quality rules, survivorship/XREF, catalog/glossary, SIF/BES/REST publication.
- Analytics/BI: Power BI, SSAS, Cognos – business‑ready, maintainable data products.
Ali Aminian
Last position:
Platform Engineer & Software Architect at Yatta GmbH
- Architected the Yatta Integration Layer – a config-driven integration platform on Java 25, Spring Boot 4 (WebFlux), Temporal, gRPC and Kafka, enabling new third-party integrations (e.g. AVS fulfillment) via declarative JSON configs with zero code changes.
- Designed and implemented Tink integration with 0Auth IBAN verification to enhance fraud prevention and account validation workflows with Adyen payByBank.
- Architected and implemented an OpenFGA-based authorization model for centralized management of users, groups, and fine-grained access control in the vendor portal.
- Architected and led delivery of the Yatta API Gateway platform using GraphQL Federation, providing a unified enterprise API layer across distributed microservices with centralized authentication, authorization and request orchestration.
- Replaced NGINX + NLB with Istio service mesh and AWS ALB; rolled out WAF, OAuth (Cognito), IP whitelisting and RBAC across environments.
- Migrated CDC from Confluent Cloud connectors to a self-hosted Kafka Connect + Debezium stack, reducing operational cost by ~80% across multiple environments.
- Implemented the Transactional Outbox pattern with Debezium for reliable, exactly-once event publishing to Kafka with Avro and Schema Registry.
- Migrated dunning/payment-recovery workflows from Airflow to Temporal, achieving 99.9% reliability for settlement handling.
- Optimised Apache Airflow with deferrable sensors to handle 1000+ concurrent DAG runs without scaling the worker pool.
- Refactored a monolithic Terraform codebase into 3 modular projects, cutting deployment time by ~45%.
- Stood up full observability with OpenTelemetry, Tempo, Prometheus and Loki; automated dev/staging/prod with ArgoCD, Image Updater and Helm.
- Collaborated with product, operations and engineering stakeholders to define scalable platform architecture and integration standards aligned with long-term business and operational goals.
Saqib Javed
Last position:
AI Developer / AI Engineer (Lead) at KOM4TEC GmbH
- Conceptual design and implementation of modular AI assistants for sales and business processes in the Microsoft ecosystem (Agentic AI, Copilot extensions)
- Frontend architecture and development with React + TypeScript for embedded chat and assistant surfaces (streaming UI, hooks, React Query, OpenAPI clients)
- Enterprise-level agent development: reusable skill/agent library, MCP server, review and compliance gates
- LLM integration into the user experience: Anthropic (Claude), OpenAI, tool use, RAG pipelines, prompt engineering, guardrails
- Architecture and code review consulting as well as mentoring in the AI development team
- Integration with Microsoft Graph, Power Platform, and Azure services
- Technologies: React, TypeScript, Anthropic Claude, OpenAI, MCP, RAG, Microsoft Graph, Power Platform, Azure
Dilip Kumar Jena
Last position:
.NET Technical Lead & Application Architect at Hays AG
- Devised a new Domain-Driven Design architecture for a core system: reverse-engineered a central component, refactored the data-access layer to minimise database round-trips (improving scalability) and migrated processing to async.
- Decomposed the platform into independent .NET Core microservices (database-per-service) with RabbitMQ pub/sub using the Outbox Pattern + Saga choreography, behind an Ocelot API Gateway (JWT, rate limiting, CORS, health checks).
- Delivered on .NET Core / Angular / SQL Server / EF Core with Docker and Azure DevOps CI/CD; implemented health checks and CORS; contributes technical designs for stories in agile Scrum.
- Sole ADR owner; mentored 3 engineers and presented architecture decisions directly to the Director of Corporate IT.
Ingo Dettling
Last position:
Analytics at BaFin - Federal Financial Supervisory Authority Frankfurt
- Introduction of methods for developing and automated deployment of cloud-native software and machine learning applications in OpenShift clusters
- Development of various programs in Python
- Technologies: Kubernetes, OpenShift, Kustomize, ArgoCD, Tekton, Docker, PodMan, Airflow, IntelliJ, PyCharm, Git, Bitbucket, Jira, Confluence, Python
Dimitrij Neumann
Last position:
Logistics Designer / Network Designer at Deutsche Bahn Cargo
- Requirements analysis, design, and development of a product for freight logistics (dispatching, planning, timetable and network optimization)
- Documentation of technical focus areas and support with acceptance and integration testing
- DBMS-agnostic modeling and mathematical algorithms for optimization with solver integration (Gurobi, Cplex, Coin-OR)
- Implementation of service layer, automated testing, and integration with third-party systems
Florian Fladung
Last position:
Senior Backend Developer at ING Deutschland AG
- Database design with Oracle DB, JPA and Flyway considering high performance requirements
- Analysis of multiple architecture drafts and identification of technical risks
- Design and implementation of various interfaces and integrations, especially REST APIs and Kafka topics
- Setup of Elasticsearch for monitoring and analyzing log data
- Establishment of an iterative work approach in the project team facing complex business requirements
Werner Keil
Last position:
Test Coordinator, Designer and Engineer at IBM
- Testing the SekIDP and related components
- Test design, execution and automation, microservices, GitHub Enterprise, Eclipse, Katalon Test Platform, API Testing, Confluence 8, JIRA/Xray, Draw.io, Swagger/OpenAPI, Postman, Docker, Kubernetes, Podman, PuTTY, E-Health, Telematik, Gematik standards, EPA, E-Rezept, sektoraler IDP, encryption, XaDES, PaDES, DICOM, HL7, FHIR, IHE, ICD, SSO, SAML/Shibboleth, OAuth, smartcards, JWT, two factor authentication Android and iOS, Wireshark, BrowserStack, Cypress, gRPC, REST, SOAP, WS-Security, Linux Shell, PowerShell, SSH/SSL, Java, Kotlin, Cordova, Gradle, Groovy, Python, TypeScript
Karsten Gerigk
Last position:
Software Development at Siemens Mobility GmbH
- Maintenance and further development of several existing projects in the "AI-powered transportation" sector, based on React, REST-like APIs (Spring, Python) and various design libraries
- Responsible in the project for build processes, JavaScript development, architecture, coordination and communication with the design team
- Agile software development (Scrum, Kanban)
- Technologies: React, TypeScript, Ant Design, Node.js, Yarn, Vite, i18n, Postgres, Keycloak, Jest, Cypress, Storybook
- Tools: IntelliJ, Git, GitLab CI, Docker, Confluence, Jira
David Rihm
Last position:
Lead Developer/Technical Architect
- Design, extension, and implementation of interfaces (REST, GraphQL, Kafka)
- Architecture and implementation of cloud-native microservices on Azure Kubernetes Service
- Domain-Driven Design, Event-Driven Architecture with Kafka
- Development of an extensive query engine for REST endpoints based on business objects
- Design and implementation of master data classification using machine learning algorithms (Weka library, Spotify Voyager)
- Analysis and evaluation of complex load test scenarios and derivation of optimizations
- Increase in system resilience (Kafka error handling, circuit breaker, sidecar service mesh in Go)
- Integration with CIAM systems (asynchronous real-time synchronization and definition of data ownership, authorization, authentication)
- Connection to Azure ServiceBus (AMQP protocol)
- Design and implementation of complex authorization concepts (including delegated administration)
- Documentation of the results (Confluence, architecture descriptions, architecture decisions)
Rashid Ibragimov
Last position:
Java Developer at IT company
- Data transformations
- IT company with more than 100 employees
- Software production
- Data augmentation and normalization, image transformation, format conversion, merging data from multiple sources
- Toolset: Java, Helm, Kubernetes, Kafka, OpenCV, IntelliJ IDEA, Gradle, Git, Docker, Containers, Scrum
Artur Sopelnik
Last position:
Senior Consultant at MHP - A Porsche Company
Igor Propisnov
Last position:
Senior Frontend Developer at Objego GmbH
Within the project, Objego's digital platform for real estate management was further developed.
Further development of various software modules within the application.
Continuous improvement and optimization of existing functionalities to enhance performance and user experience.
Design and implementation of unit tests to ensure code quality and stability.
Close collaboration with the QA team to quickly fix bugs.
Implementation of new features in coordination with stakeholders and end users.
Active member of the Scrum team with a focus on agile methods and continuous improvement of the software.
Technologies: Angular 16/17, Material, Angular CDK, Angular Elements, Nx, NgRx, NgNeat, NgX-Translate, NgX-Charts, NgX-Lottie, NgX-Markdown, Sentry, Azure AI Form Recognizer, Lodash, Dayjs, Flatpickr, Lottie-Web, Mixpanel, RxJS, Prettier, ESLint, Webpack, Cypress, Playwright, Jest, Husky, TypeScript, Node.js, Zone.js, Docker, Spring Boot, Git, Figma, Figma Token, Storybook, Jira, Confluence, Atlassian, Gitlab CI/CD, Codecov, Custom Design System, Mockoon.
Discover over 15,000 top freelancers
Statistics of experts using Domain-Driven Design
Aggregated from the professional profiles of matched freelancers.
Experience
19 years (Germany: 20 years)
Position duration
1.9 years
Positions per freelancer
15
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Transportation
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
91% (Germany: 95%)
Master's degree or higher
27% (Germany: 54%)
Doctorate
9% (Germany: 4%)
Certifications per freelancer
4 (Germany: 3)
Most common languages
German, English, Russian
Speak two or more languages
100% (Germany: 98%)
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 Frankfurt 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 Frankfurt using Domain-Driven Design
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
Business focus
Domain-Driven Design helps teams model software around the real business. It is used to shape domains, define bounded contexts, and keep complex systems understandable as they grow. Companies bring in specialists when the codebase needs clearer rules, better boundaries, and a design that matches how the business actually works.
Typical work
- Map domain events, entities, value objects, and aggregates
- Define context maps and language for cross-team work
- Refactor legacy flows into smaller, safer modules
- Support event-driven systems, APIs, and microservices
- Coach teams on ubiquitous language and model clarity
Tooling and practices
DDD is not tied to one framework. In practice, experts work with Java, .NET, Kotlin, TypeScript, and event platforms, while pairing the model with clean architecture, CQRS, and messaging where it fits. Strong professionals know when a rich model helps and when a simpler design is the better choice.
When to hire
Bring in freelance expertise when a system has grown around technical shortcuts, when several teams share the same domain, or when Frankfurt-based stakeholders need tighter alignment with delivery teams. It also helps during domain discovery workshops, large migrations, and product redesigns where the business language is still unclear.
What strong specialists do
A strong Domain-Driven Design specialist asks about rules, exceptions, and ownership before writing structure. They challenge vague requirements, separate core logic from infrastructure, and keep the model readable for other specialists. They should also be able to explain trade-offs in plain language.
Frankfurt delivery
For Frankfurt teams, DDD work often sits close to banking, logistics, insurance, and B2B software. Many engagements work well remotely, but on-site sessions can help with workshops, event storming, and stakeholder interviews. Clear English is common; German can be useful when domain experts prefer it.
Frequently asked questions
Not sure where to start with Domain-Driven Design? These answers cover the essentials.
Domain-Driven Design is used to model software around business rules, not just technical layers. Teams use it to define bounded contexts, shared language, and a structure that stays readable as the system grows. It is a strong fit for complex products, not simple CRUD work.
DDD is a modeling approach, while clean architecture is a way to organize code and microservices are a deployment style. They often work together, but they solve different problems. Good specialists know when to combine them and when a simpler modular monolith is enough.
A strong Domain-Driven Design specialist usually understands event modeling, API design, messaging, and testing around business rules. Experience with Java, .NET, Kotlin, or TypeScript is common, as is work with event-driven systems. Communication skills matter just as much as code.
Domain-Driven Design work depends on understanding the business language, key rules, and where the current design hurts. A freelancer can start with workshops, existing documentation, and a few focused interviews. The more access they get to real domain experts, the better the result.
Bring in DDD expertise when a product has become hard to change, when teams disagree on terms, or when new services keep copying the same logic. It is also useful during migration from a legacy system or before splitting a large domain into smaller parts. Early input usually saves rework.
Yes, Domain-Driven Design can work very well remotely because the main tasks are workshops, modeling sessions, and code reviews. Shared diagrams, short interviews, and clear notes keep the domain language aligned. In Frankfurt, some teams still prefer on-site sessions for discovery and stakeholder alignment.
Look for clear thinking, not jargon. A good DDD expert can explain aggregates, context boundaries, and trade-offs in simple terms, and can show how the model reduced complexity in past work. They should also know when not to use a heavy domain model.
No, Domain-Driven Design is the broader approach. Event storming is a workshop technique often used inside it, and bounded contexts are one of its core design ideas. A skilled specialist uses these tools where they add clarity, not as a fixed recipe.
The average hourly rate of freelancers in Frankfurt, Germany who have used Domain-Driven Design in their recent projects is 99 €, which corresponds to a daily rate of about 795 € based on an 8-hour working day.
Of the freelancers in Frankfurt, Germany who have used Domain-Driven Design in their recent projects, 91% hold at least a Bachelor's degree, 27% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Frankfurt, Germany who have used Domain-Driven Design in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Frankfurt, Germany who have used Domain-Driven Design in their recent projects are German (100%), English (100%), and Russian (36%).
The most common industries among freelancers in Frankfurt, Germany who have used Domain-Driven Design in their recent projects are Information Technology (100%), Banking and Finance (93%), and Transportation (57%).
The most common business areas among freelancers in Frankfurt, Germany who have used Domain-Driven Design in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (79%).
Main locations of FRATCH Experts, who have recently used Domain-Driven Design
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 
Dusseldorf 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
