MongoDB Experts in Dortmund
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Meet FRATCH Experts in Dortmund, who have recently used MongoDB
Arkadius Sikora
Last position:
Architect; Senior Developer; Full Stack Developer; DevOps Lead at Bitmarck Holding GmbH
- Requirement engineering for Ombudsstelle and creation of technical user stories for EPA V3
- Handling of objections and revocations via mail and letter with high transaction mail volume
- Coordination with other teams on interfaces
- Design of a highly available, high-throughput solution on OpenShift with Java backend microservices
- Implementation and extension of microservices
- Infrastructure setup for deployment on OpenShift/Kubernetes including Jenkins pipelines
- Integration with BitIAM, TI-M Fachdienst, Consent Keeper and FDV
- Capture of requirements from DevOps operations and business units
- Continuous integration and Scrum practices
- Use cases: Kassenfusion, Opt-Out, Last Test, Widerspruchsmanagement
- Integration test automation and feature extensions including Spring Boot 3 updates
Patrik Garten
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 Belitz
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
Yasin Yildiz
Last position:
DevOps Architect & Backend Developer at Schweizerische National Bank
- Architecting and enhancing the DevOps infrastructure in a regulated environment
- Migration, planning, and development from a monolith to microservices (ASP.NET Core)
- Building and maintaining CI/CD pipelines (GitLab, Jenkins) to support agile development
- Managing artifact repositories with JFrog Artifactory and security scans via Xray
- Migrating and integrating source code repositories (SVN → GitLab)
- Operating and configuring a container platform with OpenShift
- Automating deployments with Ansible, Helm, and the Ansible Automation Platform
- Implementing monitoring and alerting solutions with Prometheus
- Collaborating closely with the frontend development team to optimize build, test, and release processes
- Supporting the establishment of secure and scalable infrastructure processes (Secure SDLC)
- Documenting and sharing knowledge within the team
- Leading refinements and designing the backend architecture
Andreas Niemann
Last position:
Freelancer at Freelance Work
Ilja Leyberman
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
23 years (Germany: 17 years)
Position duration
3 years (Germany: 2.1 years)
Positions per freelancer
11
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Healthcare, Education
Certification focus areas
Information Technology, Quality Assurance, Business Intelligence
Bachelor's degree or higher
33% (Germany: 93%)
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 30 Aug 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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
What MongoDB does
MongoDB is a document database built for flexible application data. It stores JSON-like documents, which makes it a strong fit for product catalogs, user profiles, content systems, event data, and APIs that change often.
Common use cases
- Web and mobile back ends
- Content and catalog management
- Search, filtering, and aggregation
- Event tracking and activity streams
- Operational data with changing schemas
Skills that matter
Strong MongoDB professionals know data modeling, indexing, aggregation, and query tuning. They also understand replication, sharding, backup and restore, and how to keep reads and writes consistent under load.
Ecosystem around it
MongoDB rarely stands alone. Experts work with Mongoose, the MongoDB shell, Atlas, change streams, drivers for Node.js, Java, Python, and .NET, plus container and cloud setups that support deployment and operations.
When freelance help fits
Companies bring in freelance MongoDB specialists when queries slow down, schemas become hard to maintain, or a migration needs care. In Dortmund, this often helps teams that want local collaboration for workshops but still need remote support for ongoing delivery.
What good experts deliver
Good professionals do more than write queries. They review schema design, add the right indexes, clean up aggregation pipelines, plan backups, and reduce production risk. They also explain trade-offs clearly so teams can keep the data layer maintainable.
Frequently asked questions
Quick answers to the questions that come up most around MongoDB.
MongoDB is used for applications that need flexible document storage and fast development cycles. It fits content platforms, user-facing products, event data, product catalogs, and APIs where fields change over time. Teams choose it when a rigid table structure would slow delivery.
MongoDB is often chosen when document modeling and rapid schema changes matter more than strict relational structure. PostgreSQL or MySQL can be a better fit when joins, strong relational rules, or highly structured reporting are central. A good specialist can explain which model fits the workload instead of forcing one database everywhere.
A strong MongoDB specialist usually knows data modeling, indexing, aggregation pipelines, and basic application integration. Useful adjacent skills include JavaScript or TypeScript, Node.js, Python, Java, cloud operations, and backup planning. That mix helps the data layer fit the rest of the system cleanly.
MongoDB projects benefit from expert help as soon as data modeling or performance becomes important. Small apps may only need query and index guidance, while larger systems need work on replication, sharding, migration, and operational safety. The right level depends on risk, not just size.
Yes, MongoDB work is often well suited to remote collaboration because schema reviews, query tuning, and architecture discussions can be done online. For teams in Dortmund, on-site sessions can still help during discovery, data modeling workshops, or handover. Many projects use a mix of both.
Look for clear evidence of MongoDB work on production systems, not just sample apps. Good signs include experience with indexes, aggregation, replica sets, backups, migrations, and troubleshooting slow queries. Strong professionals can explain why they made specific design choices.
MongoDB is the database product, while MongoDB Atlas is its managed cloud service. Atlas can simplify hosting, scaling, backups, and monitoring, but the underlying data modeling and query skills are still essential. A capable specialist should understand both the database and the managed service.
MongoDB is not ideal when a project depends on heavy relational joins, strict cross-record constraints, or complex transactional reporting across many tables. In those cases, a relational database may be more practical. A good specialist will flag that early instead of trying to force a mismatch.
The average hourly rate of freelancers in Dortmund, Germany who have used MongoDB in their recent projects is 94 €, which corresponds to a daily rate of about 751 € based on an 8-hour working day.
Of the freelancers in Dortmund, Germany who have used MongoDB in their recent projects, 33% hold at least a Bachelor's degree.
On average, freelancers in Dortmund, Germany who have used MongoDB in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 3 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 (17%).
The most common industries among freelancers in Dortmund, Germany who have used MongoDB in their recent projects are Information Technology (100%), Healthcare (83%), and Education (50%).
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 Quality Assurance (83%).
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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