
MongoDB Experts in Dortmund
in minutes from over 15,000 CVs with the power of AI.Hire experts who design document models, tune queries and indexes, and run reliable replica sets and sharding for production systems. Match with vetted, available MongoDB specialists fast and precisely.
Meet FRATCH Experts in Dortmund, who have recently used MongoDB
Yasin Y.
Last position:
Enterprise Architect at Bundesagentur fĂĽr Arbeit
Task:
- Design and build a proof of concept (PoC) for a future-proof virtualization platform, taking secure system architectures into account
- Assess the current state of existing infrastructures and develop selection and evaluation criteria for the right OS virtualization platform
- Carry out the requirements analysis and then create and prioritize tickets in the ticket system
- Complete and continuously update a tool evaluation matrix based on PoC results
- Support team knowledge building through clear documentation of the approach and results in Confluence
- Enterprise analysis of existing hardware (creating different BoMs)
Technologies: Vmware, Vmware Aria Operations, Osism, Canonical OpenStack, FishOs, Linux, Terraform, Ansible, Confluence, Alma
Arkadius S.
Last position:
AWS Pricing Platform / API & Integration Architecture at Porsche Digital
Development and evolutionary further development of a highly available, cloud-native microservice and integration architecture for dealer and retail processes in the Porsche Car Configurator.
Responsibilities
- Development of Java-/Kotlin-based backend, API, and integration components (Spring Boot)
- Integration of internal and external systems via REST/OpenAPI, GraphQL, Apache Kafka, and AWS SQS (synchronous and asynchronous)
- Implementation of stable, high-performance communication and data flows in a cloud-native platform architecture
- Processing of structured data formats (JSON, Protobuf, GraphQL schemas) based on existing API patterns
- Performance optimization of distributed microservices with reduced response times and higher operational stability
- Technical tests (unit, integration, and API tests) as well as error analysis in production-like environments
- AWS Infrastructure as Code with Terraform and AWS CDK
- CI/CD automation (build, test, and deployment pipelines) with GitHub Actions
- AI-supported feature implementation (GitHub Copilot Agent)
Label: Kotlin, Java 25, Spring Boot 4, Protobuf, TypeScript, AWS, Terraform, CDK, Apache Kafka, AWS SQS, REST/OpenAPI, GraphQL, JSON, PostgreSQL, Docker, GitHub Actions, Maven, Gradle, JUnit, Mockito, Testcontainers
Kersten L.
Last position:
Lead Architect / Lead Developer at Bettles: Sports Betting Platform
- Complete greenfield rebuild across the whole stack — built AI-native: backend in Go and NestJS, PostgreSQL (CNPG) on K3s with GitOps/Terraform; frontend on Angular 22, zoneless.
- Orchestrated coding agents (e.g. Claude Code, Cursor) across the entire lifecycle — architecture, implementation, testing, reviews, documentation — driven by Specification-Driven Development (SDD).
- “Bruno” — LLM commentator persona backed by RAG and MCP for a personality that stays consistent across all generations (match previews, post-match reports, his own virtual bets).
Angular 22 (zoneless, without Zone.js), Claude Code, Claude Code Skills, CNPG, Cursor, Design Tokens (Spec for Code), Docker, Gherkin, Git, GitLab, GitOps, Go, Google Gemini, Grafana, Hetzner Cloud, K3s, Keycloak, Kubernetes, Lighthouse, LLM Integration, Model Context Protocol (MCP), NestJS, Node.js, NPM, Playwright, PostgreSQL, Prometheus, RAG, REST, Specification-Driven Development (SDD), Structured Outputs, Terraform, TypeScript, Vitest
Patrik G.
Last position:
Technical Lead Conversational AI at CANCOM
- Technical lead of a team developing agentic chatbot solutions (React, TypeScript, Python, FastAPI)
- Architecture design for multi-LLM dialog systems - focus on maintainability, UX, and autonomous execution
- Stakeholder alignment, CI/CD processes, and AI integration at enterprise level
Hendrik B.
Last position:
Lecturer at Front and Fullstack Development Lecturer
- Teaching JavaScript, HTML, CSS, React, NodeJS, MongoDB, MariaDB, and Express
- Designing and preparing lessons
- Classroom teaching and one-on-one coaching
Andreas N.
Last position:
Freelancer at Freelance Work
Ilja L.
Last position:
Software Engineer/Architect (Tech Lead) at Mercedes-Benz Tech Innovation GmbH
- Implementation of various interfaces for subsystems and connection to external devices (cameras, scanners, digital lockers)
- Development of various interfaces in the used cars area
- Realization of various prototypes
- Support in UI/UX and data analytics
- Development of frontend and backend solutions
- Kubernetes migration
- Building CI/CD pipelines
- Communication with the business unit and technical design of new solutions
- Cross-team alignment and coordination within the team
- Overview of the entire technology stack and related systems
- Documentation, preparation, and conducting of reviews
- Supporting the team and coordinating releases and key milestones
Discover over 15,000 top freelancers
Statistics of experts using MongoDB
Aggregated from the professional profiles of matched freelancers.
Experience
24 years (Germany: 17 years)

Position duration
2.9 years (Germany: 2.1 years)

Positions per freelancer
13 (Germany: 11)

Top business areas
Information Technology, Product Development, Project Management

Top industries
Information Technology, Healthcare, Education

Certification focus areas
Information Technology, Quality Assurance, Business Intelligence
Bachelor's degree or higher
50% (Germany: 93%)
Master's degree or higher
25% (Germany: 57%)

Certifications per freelancer
3 (Germany: 2)

Most common languages
German, English, Danish

Speak two or more languages
100% (Germany: 97%)
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 Dortmund 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 Dortmund using MongoDB
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.
MongoDB 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%)
- Healthcare (86%)
- Education (57%)
- Insurance (57%)
- Automotive (43%)
- Manufacturing (43%)
- Professional Services (43%)
- Government and Administration (43%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Document model
MongoDB stores data in flexible documents instead of fixed rows and columns. That makes it a strong fit for product catalogs, content systems, event data, and applications that change often. Strong specialists know when that flexibility helps and when a stricter model would be better.
Core work
- Schema design for collections and embedded documents
- Query building with the MongoDB query language and aggregation pipeline
- Index design for search, filtering, and sorting
- Replica set setup for availability and failover
- Sharding for data growth and load distribution
Ecosystem skills
MongoDB work often sits next to Node.js, Java, Python, Spring Data, and Mongoose. Experts also understand backup and restore, transaction handling, change streams, and monitoring in tools like Atlas and self-managed deployments. Good professionals keep the data model aligned with the application, not just the code.
When to bring in help
Companies usually bring in freelance MongoDB support when a system slows down, data grows unevenly, or a schema change needs careful rollout. It also helps during migrations from relational stores, a move from Mongo to MongoDB naming in older systems, or when a Dortmund team needs short-term support for a local project while core staff stay focused on delivery.
What strong specialists do
A strong MongoDB specialist reads query plans, spots missing indexes, and knows how document shape affects performance. They can explain trade-offs in plain words, work with product and backend teams, and keep data safe through backups, access control, and tested release steps. They also document decisions so the next change is easier.
Typical deliverables
- Collection design and migration scripts
- Performance fixes for slow queries and large aggregations
- Backup, restore, and failover plans
- Sharding and scaling recommendations
- Review of existing MongoDB architecture
Frequently asked questions
Quick answers to the questions that come up most around MongoDB.
MongoDB is used for applications that need flexible documents, fast iteration, and data that does not fit cleanly into tables. Teams use it for content management, product data, event tracking, user profiles, and services with changing fields. It is a common choice when the data model evolves with the product.
Choose MongoDB when the application benefits from document storage, nested structures, and a schema that can evolve without constant table changes. If the workload depends on many joins, very strict relational rules, or highly formal reporting, a relational database may be a better fit. A strong specialist can help decide before the model gets too large to change easily.
MongoDB is usually compared with PostgreSQL and MySQL when teams need to choose between documents and tables. MongoDB makes flexible data modeling and nested structures easier, while PostgreSQL and MySQL are often stronger for relational constraints and join-heavy reporting. The right answer depends on how the product stores and queries data.
A good MongoDB professional usually knows data modeling, indexing, aggregation, and performance troubleshooting. Helpful adjacent skills include JavaScript or TypeScript, Node.js, Java, Python, API design, and cloud operations. For larger systems, experience with backups, security, and deployment automation matters too.
A small content or internal tool may only need a MongoDB specialist for a short review or migration task. Production systems with heavy write traffic, complex aggregations, or sharding need deeper experience. The more critical the data path, the more important proven work on real production clusters becomes.
Yes, most MongoDB work can be done remotely because query review, data modeling, and performance analysis are easy to share online. For systems tied to local infrastructure or sensitive data, an on-site start in Dortmund can help with access, context, and handover. Many teams use a mix of remote delivery and short in-person sessions.
Look for clear decisions on schema shape, indexes, and query plans in their past work with MongoDB. Good specialists explain why they chose embedded documents, references, or sharding, and they can show how they tested backups, failover, and restore steps. If they only talk about the database name and not the data model, that is a warning sign.
In MongoDB, the most important concepts are collections, documents, indexes, aggregation, replica sets, and sharding. Many teams also use MongoDB Atlas for managed hosting and the mongo shell or mongosh for direct database work. A freelancer should know how those parts fit together in production.
The average hourly rate of freelancers in Dortmund, Germany who have used MongoDB in their recent projects is 91 €, which corresponds to a daily rate of about 728 € based on an 8-hour working day.
Of the freelancers in Dortmund, Germany who have used MongoDB in their recent projects, 50% hold at least a Bachelor's degree and 25% hold at least a Master's degree.
On average, freelancers in Dortmund, Germany who have used MongoDB in their recent projects have 24 years of professional experience, with a single engagement typically lasting around 2.9 years.
The most common languages among freelancers in Dortmund, Germany who have used MongoDB in their recent projects are German (100%), English (100%), and Danish (14%).
The most common industries among freelancers in Dortmund, Germany who have used MongoDB in their recent projects are Information Technology (100%), Healthcare (86%), and Education (57%).
The most common business areas among freelancers in Dortmund, Germany who have used MongoDB in their recent projects are Information Technology (100%), Product Development (100%), and Project Management (86%).
Main locations of FRATCH Experts, who have recently used MongoDB
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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