MongoDB Experts in Leipzig
in minutes from over 15,000 CVs with the power of AI.Hire experts who design flexible document models, tune indexes and aggregation pipelines, and keep replica sets and sharding stable in production. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Leipzig, who have recently used MongoDB
Jens Oberender
Last position:
Freelance Java Developer / DevOps Engineer at Unpublished defense company
- Extension of OSGi modules in a complex communication solution
- Debugging communication with Wireshark and remotely in the JENS test environment
- Migration of tests from TestNG to JUnit 5 with Mockito and AssertJ
- Updating vulnerable dependencies and improving code quality
- Changes to the Vaadin frontend
- Increasing test coverage
Peter Teich
Last position:
Freelance Go-Developer/DevOps-Engineer at IONOS SE
- Implementation of an API for customers to provide NFS shares in the cloud
- Creating Kubernetes operators and services with REST APIs in Go
- Using LinuxKit for provisioning VMs
Gwen Glaser
Last position:
Senior Ruby on Rails & DevOps Developer at Sapiens
Further development of a software solution for managing test requests and test notifications according to §106d SGB V for the Hamburg Association of Statutory Health Insurance Physicians.
- Developed numerous features, performance optimizations, refactoring, error analysis
- Refactored the dev container setup
- Optimized the GitLab CI build pipeline
- Contributed optimizations to the team workflow
Michael Lühr
Last position:
B2B Shop Development for Curtain Fabrics
- Development of a B2B shop based on Magento 2
- Plugin research and implementation, e.g. custom prices per customer
- Implementation of individual customizations
- Quality assurance
- Release management
- Collaboration with the marketing team
- Technologies: Magento 2, CSS, JavaScript, PHP, Docker, Git
Norbert Stein
Last position:
Technical training & open-source work at Personal Project
- training and official certification as Certified Kubernetes Application Developer
- open-source development and documentation in a personal project
- keeping updated about cloud native and AI technologies through courses and books
- Tech: Kubernetes, Docker, Typescript, Node.js
Mostafa Shawki
Last position:
Freelance Senior Software Engineer & AI Consultant at Self-employed
- Led the development of a complex geospatial data platform, engineering an end-to-end system for processing and analyzing high-resolution aerial imagery.
- Engineered a scalable backend responsible for on-the-fly map tile serving and running complex data analysis queries using PostGIS and Python.
- Developed and trained custom computer vision models using Python, PyTorch, and YOLOv8 to perform object detection and segmentation on large-scale datasets.
- Built modern, responsive user interfaces and data visualization dashboards using Next.js, TypeScript, and React.
- Gained practical expertise in geospatial libraries such as GDAL and Rasterio for processing and manipulating raster and vector data.
- Managed the entire project lifecycle, from initial technical architecture and database design to final deployment using Docker.
Knud Werner
Last position:
Lead Programmer, Architect and Deputy Product Owner at Bundesagentur für Arbeit
- Lead programmer, architect and deputy product owner
- Completed transition from zPDV to STEP
- Ensured quality of C++ and Perl sources through automated and manual checks
- Supported resolution of incidents and errors in testing
- Implemented batch for supplementary assignment of payment run numbers
- Implemented batch for distribution of SGB 2 information to the central payment unit
- Supported replacement of Solaris with Linux
- Upgraded gcc from 7.4 to 9.3
- Programmatically generated Makefiles from Borland projects for builds
- Extended funding data with new attribute “internship travel cost indicator”
- Programmatically generated XSD and WSDL files from IDL definitions
- Represented the product owner when needed
- Implemented batch for one-time payment processing
- Developed generator for Liquibase files
- Implemented and maintained regular anonymization of production data
- Supported migration from SLES 12 to SLES 15
- Supported introduction of mutual TLS
- Implemented batch for sending deletion impulses to EDA BE
- Organized script directory structure
- Investigated potential introduction of String-Latin and implemented minimal solution
- Remediated security findings identified by CheckMarx
- Supported PAP recalculations and general change notices
- Converted ERP interfaces from SOAP to REST
- Planned technical and business topics such as register modernization, cash register security, training costs, four-eyes principle
Tom Cernohorsky
Last position:
Web Developer at Puder + Consortio; Feldenkrais Verena Tintelnot; Maxim Gorki Theater; Grunwald & Grundwald Architektur und Städtebau; Wanderkino
- Implementation and updates of various websites for:
- Puder + Consortio
- Feldenkrais Verena Tintelnot
- "Mely Kiyak hat Kunst" at the Maxim Gorki Theater
- Grunwald & Grundwald Architektur und Städtebau
- Wanderkino
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
1.5 years (Germany: 2.1 years)
Positions per freelancer
16 (Germany: 11)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Professional Services, Retail
Certification focus areas
Information Technology, Operations, Product Development
Bachelor's degree or higher
100% (Germany: 93%)
Master's degree or higher
33% (Germany: 57%)
Doctorate
17% (Germany: 6%)
Certifications per freelancer
1 (Germany: 2)
Most common languages
English, German, French
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 Leipzig 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 Leipzig 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
Document data model
MongoDB stores data as flexible documents instead of fixed rows. That makes it a strong fit for product catalogs, user profiles, content systems and fast-changing application data. Teams bring in specialists when they need clean document design, not just raw storage.
Core MongoDB work
- Design collections and document structures
- Build indexes for fast reads and filters
- Write aggregation pipelines for reporting and transformation
- Set up replica sets for availability
- Plan sharding for larger workloads
Ecosystem and tools
Strong professionals work with MongoDB Compass, the shell, drivers for common application stacks and backup and monitoring tooling. They also understand JSON-style schemas, validation rules and how the database fits into APIs, search layers and event-driven systems.
When companies need help
Companies often look for freelance expertise during new builds, data model refactors, slow query investigations or cloud migrations. In Leipzig, this can also mean working with teams that need clear communication in English and German across product, operations and delivery.
What strong specialists do
A good MongoDB specialist thinks in access patterns, not just tables. They choose indexes carefully, keep queries predictable, handle schema evolution without breaking applications and know when MongoDB is the right fit compared with PostgreSQL or other databases.
Common project outcomes
- Migration from relational data to MongoDB
- Cleanup of existing collections and indexes
- Performance tuning for read-heavy services
- Support for scale-out and high availability
- Guidance for teams adopting MongoDB or Mongo
Frequently asked questions
Curious about MongoDB? Here are the answers that come up again and again.
MongoDB is used for applications that need flexible documents, fast iteration and changing data shapes. It is common in content platforms, product catalogs, user profiles, logs and API back ends. Teams also use it when the schema needs to evolve without long database redesigns.
MongoDB is usually chosen when document structure and application speed matter more than strict relational modeling. PostgreSQL and MySQL are often better for highly relational data, complex joins and classic transaction-heavy systems. A good specialist can tell you when MongoDB is the right tool and when it is not.
MongoDB is the product name, while Mongo is a common shorthand people use in conversation and search. It belongs to the broader NoSQL family, but that label is too wide to describe the database precisely. When you hire, ask whether the specialist has worked specifically with MongoDB, not just NoSQL in general.
A strong MongoDB freelancer usually also knows data modeling, API design, query tuning and cloud infrastructure basics. Experience with Node.js, Python, Java or .NET is often useful because MongoDB sits inside application code as much as inside the database layer. For production work, backup, monitoring and deployment skills matter too.
MongoDB projects vary a lot, so the right level depends on the task. A simple schema review may need a specialist who understands documents and indexes, while a migration or sharding effort needs deeper production experience. Ask for examples that match your exact workload, not just general database knowledge.
Yes, most MongoDB work can be done remotely because it centers on schema design, query review, performance analysis and deployment support. For Leipzig teams, on-site time is mainly useful when workshops, stakeholder alignment or handover sessions need close collaboration. Many projects work well with a mixed setup.
A good MongoDB specialist explains document choices, index strategy and trade-offs in plain language. They should be able to discuss aggregation pipelines, replica sets, sharding and common failure points without hiding behind buzzwords. Look for practical decisions, not just tool familiarity.
A careful MongoDB freelancer will ask about data volume, access patterns, deployment environment and whether the system is greenfield or already in production. They should also want to know how the database connects to the app, which team owns operations and whether there are remote or Leipzig-based workshop expectations. That context determines the right design and level of effort.
The average hourly rate of freelancers in Leipzig, Germany who have used MongoDB in their recent projects is 94 €, which corresponds to a daily rate of about 755 € based on an 8-hour working day.
Of the freelancers in Leipzig, Germany who have used MongoDB in their recent projects, 100% hold at least a Bachelor's degree, 33% hold at least a Master's degree, and 17% hold a doctorate.
On average, freelancers in Leipzig, Germany who have used MongoDB in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 1.5 years.
The most common languages among freelancers in Leipzig, Germany who have used MongoDB in their recent projects are English (100%), German (88%), and French (25%).
The most common industries among freelancers in Leipzig, Germany who have used MongoDB in their recent projects are Information Technology (100%), Professional Services (50%), and Retail (50%).
The most common business areas among freelancers in Leipzig, Germany who have used MongoDB in their recent projects are Information Technology (100%), Product Development (100%), and Project Management (63%).
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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