
Neo4j Experts in Berlin
, matched in minutes from over 15,000 CVsHire experts who design graph data models, build Cypher queries and connect Neo4j with enterprise applications, APIs and analytics workflows. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your project.
Meet FRATCH Experts in Berlin, who have recently used Neo4j
Kenan Š.
Last position:
Enterprise Architecture at Swiss Krono
- Building up the Enterprise Architecture department. Preparing the convergence of IT / OT.
- Mapping the global business application landscape (6 countries).
- Concept for a graph model of the application landscape. Storing the results in the open-source graph database Neo4J. Various reports in the database query language CYPHER and the visualization component BLOOM. Automatic generation of IT architecture diagrams.
- Development of an application taxonomy to identify redundant applications.
- Applying Gartner's Software Portfolio Management TIME model (Tolerate, Invest, Migrate, and Eliminate) for portfolio management.
- Enterprise Architecture Governance: establishing architecture guidelines for documenting measures and decisions.
- Process modeling according to Porter (Value Chain).
- Various architecture approvals for change requests and documentation in Architecture Decision Records (ADR).
- Working on the RACI matrix for various processes.
- Working on business capabilities as preparation for a LeanIX rollout.
- Contributing to the concept for IT/OT convergence.
- Establishing architecture guidelines in a very pragmatic corporate culture. Knowledge about applications and responsibilities is spread across the world.
Deepak M.
Last position:
Lead ML Platform Engineer at Billie GmbH
- Mentor team of 6 ML platform engineers through weekly 1:1s, technical design reviews, and best practices, improving team velocity by 35% through structured sprint planning and skill development programs
- Define 2025–2026 ML platform roadmap in collaboration with Data Science, Cloud Engineering, and Product teams, prioritizing automated model governance, cost attribution systems, and multi-environment deployment strategies
- Partner with Data Science, SRE, and Product stakeholders to align ML platform capabilities with business objectives, reducing data scientist deployment friction by 60% through self-service platforms
- Architect and deliver production-grade MLOps platform supporting 50+ models in production with automated promotion pipelines, versioning, and rollback capabilities, achieving 99.5% platform uptime SLA
- Design distributed ML pipeline architecture using Metaflow and Argo Workflows (Vertex Pipelines-compatible), reducing model training time by 30% and deployment cycles from 2 weeks to 3 days through full CI/CD automation
- Build containerized ML services on Kubernetes with auto-scaling policies, resource quotas, and multi-tenancy isolation, optimizing infrastructure costs by $180K annually (25% reduction)
- Implement monitoring, alerting, and performance tracking using Prometheus, Grafana, and custom instrumentation, reducing model debugging time by 50% and establishing model performance SLOs
- Lead development of RAG-based document intelligence platform using LangChain, LangGraph, and vector databases, implementing agentic AI workflows for automated financial document processing
- Implement Infrastructure-as-Code using Terraform for reproducible environment provisioning and GitOps workflows, reducing infrastructure drift incidents by 80%
- Design role-based access control for ML platform, implement model lineage tracking, and establish audit trails for regulatory compliance aligned with enterprise IAM best practices
Ibrahim H.
Last position:
Senior Full Stack / AI Engineer at Punktum Digital GmbH
- Context: Healthcare and laboratory teams required faster document analysis, treatment-planning support, and reliable AI workflows for MR/VR-assisted operations.
- Contribution: Built the AI healthcare platform, model/agent workflows, VR-glasses deployment platform, REST APIs, Next.js/React interfaces, and CI/CD pipelines.
- Impact: Delivered a production-ready AI product foundation that improved clinical document review, supported laboratory automation, and made VR fleet deployment manageable across environments.
Tech: TypeScript, Next.js, Node.js, React, Java, Spring Boot, Python, PyTorch, TensorFlow, Docker, PostgreSQL, OpenAPI, GitLab, GitHub Actions.
Sebastian S.
Last position:
Group Product Manager – Digital Platform Discovery at SPREAD.AI
- Developed and implemented organization-wide discovery framework based on Ulwick’s Outcome-Driven Innovation; enabled 7 Product Owners to systematically identify and quantify unrealized value through shared outcome language and opportunity scoring methodology
- Transformed Product Owner role from backlog clerks to strategic experimenters; established dedicated time budget for autonomous hypothesis testing and discovery activities
- Rebuilt customer journey maps to start at actual user need (tool selection phase) instead of platform entry point; eliminated manual data aggregation work previously done by project teams
- Implemented OKR framework across 4 product teams; defined quarterly objectives with measurable key results (e.g., 40% reduction in manual integration effort, self-service adoption increase)
- Unified 3 separate platform roadmaps through cross-team dependency mapping and shared service agreements
- Supported enterprise sales cycle with ROI modeling and technical due diligence for automotive and defense customers
Louis G.
Last position:
Freelance Solutions Architect and Machine Learning Engineer at Self-employed
- Develop and demonstrate solutions using GenAI software like langchain, vercel ai sdk, copilotkit
- Work with customers to understand their challenges and provide the best solutions based on open-source data products
- Build RAG and GraphRAG solutions using Neo4j, lancedb, and Postgres
- Deploy a LLMOps platform using kubernetes, terraform, helmfile, Arize phoenix, mlflow
- Architect and build data pipelines using dbt, Trino, Spark, Iceberg, Airflow, ArgoCD, terraform, kubernetes
- Delivered user-centred technical strategy for Agriculture 4.0 and precision livestock farming, helping my client secure funding from Bpifrance
- Delivered a prospecting tool for a leading French solar carport installer, using geospatial computing (GIS), speeding up the sales process
- Built digital twin architecture for solar carports and EV chargers, making real-time monitoring and smart charging possible
Karthikeyan R.
Last position:
Full-Stack Developer — Own Product at Self-employed
Java 21 · Spring Boot 3 · Keycloak · PostgreSQL · Docker · Nginx · GitHub Actions · DigitalOcean · React 18 · TypeScript · Plasmo
- Architected and shipped a production-ready Job Application Tracker end-to-end: REST API with 5-stage workflow, pagination, sorting, and dynamic filtering — full ownership from design to live cloud deployment on DigitalOcean.
- Implemented production-grade identity management: OAuth 2.0 / OpenID Connect / JWT / RBAC via Keycloak, applying Hexagonal Architecture and DDD principles.
- Built automated CI/CD pipeline (GitHub Actions); containerised with Docker; Nginx reverse proxy with path-based routing and SSL termination.
- Developed a Chrome Extension (Plasmo framework, Manifest V3) that auto-fills job applications directly from LinkedIn into the tracker — demonstrates full product thinking across backend API and browser client.
Tejasvi Y.
Last position:
Backend Engineer at N26
- Developed and maintained Kotlin-based microservices with Kafka event streaming, applying Hexagonal Architecture and Domain-Driven Design in production environments.
- Contributed to the Bring-Your-Salary feature, enabling seamless onboarding of new salary accounts and improving customer experience.
- Built and integrated services for the FPAD VOP platform, supporting secure and scalable partner integrations.
- Investigated and resolved production incidents through root cause analysis (RCA), implementing fixes that improved service stability and reliability.
Kaan D.
Last position:
IT Consultant at Tensora GmbH
Kalyani K.
Last position:
Assistant Vice President at Deutsche Bank
- Technologies: Java, React, Python, Scala, Spring Boot, JPA, microservices, Kubernetes, Docker, OpenShift, Eureka, Prometheus, Grafana, Zookeeper
- Led the design and development of enterprise wide data warehouse platform for efficient and secure data sharing using stateless, event-driven microservices architecture
- Served as component guardian and Scrum master for three microservices, ensuring seamless integration and maintaining high data integrity
- Optimized performance through Prometheus and Grafana, achieving measurable system resilience
Kenneth Foster A.
Last position:
Assistant Vice President- Portfolio Risk at Deutsche Bank
- Conducting counterparty credit risk (CCR) stress testing across a wide range of asset classes, including Listed Derivatives and Securities Financing Transactions (SFTs), ensuring alignment with regulatory requirements.
- Supporting the execution of regulatory stress testing frameworks such as CCAR (Federal Reserve), ECB (Europe), and MAS (Singapore) — including scenario design, results analysis, and full end-to-end coordination.
- Plays a key role in the governance and documentation process for CCAR submissions to the Federal Reserve, ensuring timely delivery, internal signoffs, control evidence, and clear audit trails in line with regulatory expectations.
- Maintains comprehensive, audit-ready documentation for CCAR model assumptions, methodologies, and results interpretation, serving as a point of contact for internal and external audits as well as regulatory reviews.
- Acting as a key liaison during internal and external audits and regulatory reviews, preparing evidence packages, responding to queries, and addressing findings related to CCR stress testing.
- Presenting final stress testing results and key risk drivers to senior management and risk committees to secure executive approval and sign-off prior to regulatory submission.
- Analyzing credit exposure under stress across derivatives and SFT portfolios, identifying and explaining significant drivers.
- Participating in the review and enhancement of CCR methodologies, working closely with Risk Models, Front Office, Regulatory Reporting, and Technology teams.
- Development, implementation and automation of risk reporting infrastructure, improving transparency and controls across the CCR stress testing process.
Robert H.
Last position:
Senior Software Engineer at Zalando SE
Konstantin K.
Last position:
.NET Senior Full-stack Software Developer at DINA Elektronik GmbH
- Tech-Stack: C#, XAML, WPF, MongoDB, Azure Cloud, Azure DevOps, Resharper, Rider, OAuth2.0, REST, XUnit, NSubstitute, FluentAssertions
- Designed and implemented the IO architecture for improved data flow and efficiency.
- Developed a new desktop application from scratch, improving user experience and functionality.
- Led the implementation of daily stand-ups, software refinements, retrospectives, and project planning.
- Wrote unit and integration tests to ensure code quality and stability.
- Conducted code reviews and mentored junior developers.
- Played a key role in the company's digitalization efforts.
- Managed a team of 4 software developers, providing leadership and direction.
Mario E.
Last position:
Developer and Consultant at Freelancer
Discover over 15,000 top freelancers
Statistics of experts using Neo4j
Aggregated from the professional profiles of matched freelancers.
Experience
15 years (Germany: 17 years)

Position duration
2.4 years (Germany: 2.1 years)

Positions per freelancer
7 (Germany: 10)

Top business areas
Information Technology, Product Development, Project Management

Top industries
Information Technology, Banking and Finance, Automotive

Certification focus areas
Information Technology, Product Development, Business Intelligence
Bachelor's degree or higher
100% (Germany: 94%)
Master's degree or higher
60% (Germany: 69%)

Certifications per freelancer
2 (Germany: 3)

Most common languages
English, German, Arabic

Speak two or more languages
92% (Germany: 95%)
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 Berlin 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 Berlin using Neo4j
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.
Neo4j 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 (92%)
- Banking and Finance (69%)
- Automotive (46%)
- Manufacturing (38%)
- Energy (31%)
- Media and Entertainment (31%)
- Professional Services (31%)
- Retail (31%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Graph foundations
Neo4j is a native graph database for storing and querying relationships as first-class data. It represents information as nodes, relationships and properties, making connected data easier to explore than in many row- and document-based systems. Companies use it for knowledge graphs, recommendations, fraud analysis, identity networks and dependency mapping.
Data modelling
Strong Neo4j specialists translate business relationships into practical graph models. They define labels, relationship types, constraints and indexes, then choose a structure that supports clear queries and reliable growth. They also assess whether a graph model fits the workload instead of forcing every data problem into Neo4j.
Cypher and tooling
Cypher is Neo4j’s declarative query language and a central skill for productive graph work. The surrounding ecosystem includes Neo4j Aura, the Neo4j Graph Data Science library, drivers for Java, JavaScript, Python and .NET, GraphQL integrations, Bloom and import tooling. Delivery may also involve APIs, ETL pipelines, monitoring and access controls.
- Design nodes, relationships and graph schemas
- Write and tune Cypher queries
- Import data from relational and operational systems
- Apply graph algorithms and embeddings
Where it fits
Neo4j appears in systems that need relationship-aware decisions rather than isolated record lookups. Typical examples include product recommendations, customer-360 views, network planning, knowledge management, access analysis and supply-chain traceability. In Berlin, specialists may support data-heavy work across mobility, finance, research, media and industrial companies, remotely or alongside local teams.
When to bring expertise
Freelance expertise helps when a graph initiative must move from a proof of concept to a dependable product. It is useful when queries become slow, source data is inconsistent, migrations need careful planning or internal teams lack graph experience. Clear signs include repeated manual relationship analysis, difficult joins across systems and uncertainty about graph versus relational architecture.
- Validate a graph use case and migration path
- Connect Neo4j to existing services and data sources
- Improve query performance and operational reliability
- Establish testing, security and deployment practices
What quality looks like
Effective professionals explain graph decisions in business terms and can show how a model supports real query patterns. They test data ingestion, constraints, permissions and failure handling instead of focusing only on a demo. Look for practical experience with production operations, profiling, backups, version changes and collaboration with analysts, product teams and other technical specialists.
Frequently asked questions
Key details about Neo4j, drawn from the questions we get asked most.
Neo4j is used for applications where relationships matter as much as individual records. Common uses include recommendation engines, fraud detection, knowledge graphs, identity resolution, network analysis and dependency management.
Neo4j stores relationships directly in the graph, so connected traversals can be expressed naturally with Cypher. Relational databases remain strong for structured transactions and tabular reporting, so the right choice depends on query patterns, consistency needs and the existing data landscape.
A strong Neo4j specialist usually combines Cypher, graph modelling and data integration skills with knowledge of APIs, cloud deployment and security. Experience with Neo4j Aura, Graph Data Science, ETL processes and a programming language used by the surrounding application is also valuable.
A small proof of concept can be supported by someone comfortable with graph concepts and Cypher. Production work needs broader Neo4j experience, including schema evolution, query profiling, data quality, access control, backup strategy and operational monitoring.
Neo4j work is often well suited to remote collaboration because modelling, query review and data-pipeline changes can be handled online. Berlin companies should agree on documentation, workshop schedules, working hours and the language used for technical decisions before the engagement begins.
Neo4j is often a better fit when applications repeatedly traverse many relationship types or need to analyse paths through connected data. Document databases can be simpler for aggregate-oriented records with limited cross-document navigation, so workload testing should guide the decision.
Ask a Neo4j professional to explain the model using concrete business queries, not only diagrams. Review query plans, constraints, ingestion tests, security design and operational runbooks, and check whether the proposed solution can evolve without creating confusing relationship structures.
A Neo4j engagement may involve more than database work: source-system mapping, API integration, data cleansing, graph algorithms and production support can all be part of the scope. Clarify the existing model, data volume, deployment setup, Cypher standards and the decisions the graph must enable.
The average hourly rate of freelancers in Berlin, Germany who have used Neo4j in their recent projects is 90 €, which corresponds to a daily rate of about 718 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used Neo4j in their recent projects, 100% hold at least a Bachelor's degree and 60% hold at least a Master's degree.
On average, freelancers in Berlin, Germany who have used Neo4j in their recent projects have 15 years of professional experience, with a single engagement typically lasting around 2.4 years.
The most common languages among freelancers in Berlin, Germany who have used Neo4j in their recent projects are English (100%), German (92%), and Arabic (15%).
The most common industries among freelancers in Berlin, Germany who have used Neo4j in their recent projects are Information Technology (92%), Banking and Finance (69%), and Automotive (46%).
The most common business areas among freelancers in Berlin, Germany who have used Neo4j in their recent projects are Information Technology (100%), Product Development (92%), and Project Management (62%).
Main locations of FRATCH Experts, who have recently used Neo4j
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.
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