MongoDB Experts in Hamburg
in minutes from over 15,000 CVs with the power of AI.Hire experts who design document models, tune indexes, build aggregation pipelines, and run MongoDB Atlas or self-managed clusters. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Hamburg, who have recently used MongoDB
Niko Schmuck
Last position:
Developing Architect, Technical Lead "gridlytics" at HH Energienetze
- Building a data integration platform for high, medium, and low voltage assets for contextual analysis of time series with master data from the SCADA control system (IEC 60870 104), INIS, and SAP.
- Responsibility for the architecture and implementation of the solution, as well as sparring partner for the Product Owner.
- Use of Kotlin, Spring Boot, Maven, TimescaleDB, PostgreSQL, liquibase, Elements IoT, Docker, Kubernetes, Grafana, Python, jupyter, and various API gateways.
Christian Frauer
Last position:
Department Head (Interim) at Municipal utilities and transport company
- Definition and setup of the subject areas
- Building a governance model for the department with the areas of responsibility
- IT strategy, project management, process management, and quality and sustainability management
- Developing a communication strategy within the group
- Creating the IT strategy
- Designing templates, guidelines, and processes for consistent work
- Capturing strategic guardrails and grouping ongoing projects – deriving a roadmap for strategic planning
- Reviewing ongoing projects
- Creating staffing calculations and volume structure
- Defining job profiles
Hoa Josef Nguyen
Last position:
AI Architect and Enabler at Inhouse / AI Business
Technologies: n8n, Notion, OpenAI API, Claude, MS AI Foundry, MS CoPilot Studio, MS CoPilot, LLM, Node.js, Vercel, LangGraph, PostgreSQL, pgEdge, pgvector, Docker, LangChain, Ollama, Open WebUI
- Continuous evaluation and prioritization of internal automation needs
- ~20 AI agents in active use: research, content pipelines, document processing
- 5 n8n workflows for automated data and process control
- Architecture built on the same principles as in customer projects: state management, event-driven orchestration, API integration
- Ongoing operation and further development
Anastasiia Komarenko
Last position:
Senior Test Automation Engineer at E.ON
- Reviewing functional and technical requirements from a testing perspective
- Creating test cases and automated tests to validate requirements
- Performing manual and automated functional, end-to-end, and regression tests
- Documenting test results and tracking defects
- Using models like GPT-4, BERT, and Hugging Face Transformers for automated test case generation, analysis of test results, and improving test coverage, including bias checks and security reviews
- Techs: MS Office, Jira, Zephyr, Confluence, Tosca, stakeholder communication, Agile, Kanban, Scrum, OpenAI API, Hugging Face, PyTorch, LangChain.
Cornelius Höfig
Last position:
Solution Architect at STIHL
- Remodeling of the system architecture for an Azure-based platform aimed at rapid development of new functionalities
- Modeling of a staging concept for the fulfillment of diverse customer and QA needs
- Creation of requirements for, and oversight of, a proof-of-concept supplier project for a Flutter app with highly advanced BLE functionalities
- Comparison of multiple observability platforms for feasibility and requirements fit within the project environment
- Creation of a mobile app architecture based on domain-driven architecture
- Position of technical advisor and accountable solution architect for two development teams
- Execution of architecture reviews and alignment of changes with architectural expectations
- Skills & Technologies: Microsoft Azure , App Services, NodeJS Mono-repository, microservice architecture, domain driven design, self contained systems, requirements engineering, CI/CD, DevOps, API design, solution architecture
Thorsten Boock
Last position:
Senior Software Engineer at Codegy
- Developing Kotlin/Spring Boot microservices deployed on Kubernetes and AWS Lambda
- Implementing monitoring solutions
- Backend development for Traigo platform (booking/analysis for freight wagons)
- Determining wagon stays in geofences
- Routing of position data
- Forwarding position data and geofence events to clients using ITSS
- Developing and deploying services in both Kubernetes and AWS Lambda environments
- Tech stack: Kotlin, Spring Boot, Kubernetes, AWS Lambda, PostgreSQL, DynamoDB, Protocol Buffers
Max Dietrich
Last position:
Senior Fullstack Engineer at Spiri.Bo GmbH
- Building new and improving existing features for a housing management platform that helps both landlords and tenants
- Technologies: Node.js, TypeScript, React.js, Next.js, PostgreSQL, Google Cloud, Docker, Kubernetes
Patrick Von Der Gönna
Last position:
Senior Director, Retail Media at EUROBAUSTOFF Handelsgesellschaft mbH & Co. KG
- Strategic consulting on marketing funds (WKZ) and retail media, focusing on monetization opportunities and data-driven business models
- Conducting a portfolio analysis of existing WKZ measures to assess the revenue and ROI impact of WKZ investments on supplier performance
- Potential analysis of digital WKZ products and initiatives to identify growth and efficiency levers
- Preparing and presenting the results to management and deriving a strategic move-forward plan
- Designing and facilitating several executive workshops to develop a holistic retail media vision and transformation roadmap
- Defining and prioritizing retail media business cases for data-driven evaluation of investment options
- Developing a technical target architecture considering heterogeneous ERP infrastructures and designing an integrated loyalty program
- Designing change management, including impact analysis on organizational structures and processes
- Creating and presenting C-level decision templates
- Establishing a clear retail media governance structure and technical foundation for data-driven marketing
- Developing a roadmap for implementation in 2026
Mohammad Mirmohammadi
Last position:
Senior Frontend Developer / IT Consultant at Freelance
Development of modern web applications focusing on React and Next.js
Implementation of e-commerce and business platforms for SMEs
Analysis and optimization of software and data structures
Design and development of custom IT solutions
Structuring of data flows and system architectures
Ongoing project work in web development and platform solutions
Tax Advisor Platform with Client Portal and Admin System:
Development of a web-based platform with an integrated client portal
Implementation of a system solution including a website, admin panel, and client application
Development of a role-based access system (admin / client)
Implementation of document and invoice management
Digitization of business processes
Building high-performance frontend structures
Integration of APIs and backend logic
Coffee Business Platform with Admin System:
Development of a web application for a café with administrative functions
Implementation of internal workflows and user management
Structuring of digital business processes
Development of modern UI components with a focus on performance
Shared Account Platform (Admin & Client Applications):
Development of a scalable platform with separate applications for admins and users
Implementation of a role-based access system
Development of a modular frontend architecture with React and TypeScript
Integration of API structures and data management
David Adamo
Last position:
Senior SAP Commerce Cloud Developer at Freelancer
- Integration of SAP Commerce Cloud with SAP Cloud for Customer
- Creation and execution of unit and integration tests
- Error analysis and bug fixing
Özgür Ertekin
Last position:
Senior Software Developer at Cubic Transportation Systems
- Designed, implemented, and deployed two new microservice components, enabling new business functionalities and supporting regulatory compliance for enterprise clients.
- Ensured business continuity and system reliability within a high-transaction, microservice-based environment, taking ownership of backend systems under dynamic business conditions.
- Identified and refactored inefficient implementations, applying cost-benefit analysis to optimize performance, maintainability, and code quality.
Dhruti Chandarana
Last position:
Freelancer Developer
Expomate platform
- Built a cross-platform exhibitor inquiry management app using React Native and RoR 8, leveraging RESTful APIs, Solid Queue for background job processing, and Devise for authentication on the backend, with Redux and AsyncStorage for state management and local data persistence.
TaskINT platform
- Developed a unified platform for task execution, time tracking, invoicing, client relations, and staff management using RoR 8 and React.js, utilising RESTful APIs, Sidekiq for background jobs, and Zustand for state management and WebSockets for real-time data sync, with 300+ users onboarded across 5 clients.
Andreas Schmückert
Last position:
Solution Architect, Business Analyst, Consultant, Full-Stack Lead-Developer at 50Hertz Transmission GmbH
- Solution for micro-service and frontend solution for the electric grid
- Leading of development teams
- Technologies: React-Native, TypeScript, Kotlin, AWS, Infrastructure As Code, Serverless Architecture, React, NoSQL, GraphQL, Angular, Playwright, Python, ML(Ops), Kubernetes, Docker
Alex Claes
Last position:
Senior Full-Stack Developer at Umbrella Organization of German Sports Clubs
- Development of a CMS-based online platform as a central hub for multimedia brand communication, focusing on accessibility, web performance, and data protection.
- Technologies: PHP, Craft CMS, Twig, HTML, CSS, JavaScript, Alpine.js, htmx.
Walid Haidari
Last position:
Senior Tester within the IT & Digital Roadmap at VTG-Aktiengesellschaft
- Consulting, planning, and adapting (extension and rebuild) of the existing test framework to cover necessary test cases as part of quality assurance for initiative implementations
- Executing cross-team manual test cases during regular sprint cycles
- Setting up test automation
- Advising front-end and back-end development on quality assurance aspects
- Building a framework for end-to-end test cases
- Performing software quality assurance across various projects within a program
- Supporting the creation of test cases
- Coordinating within the team with all relevant stakeholders
Discover over 15,000 top freelancers
Statistics of experts using MongoDB
Aggregated from the professional profiles of matched freelancers.
Experience
18 years (Germany: 17 years)
Position duration
1.9 years (Germany: 2.1 years)
Positions per freelancer
14 (Germany: 11)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Retail, Banking and Finance
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
91% (Germany: 93%)
Master's degree or higher
44% (Germany: 57%)
Certifications per freelancer
2
Most common languages
German, English, Spanish
Speak two or more languages
98% (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 Hamburg 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 Hamburg 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
MongoDB is a document database built for data that does not fit rigid tables. It stores records as BSON documents, which keeps related fields together and makes product data, user profiles, and event data easier to shape. Teams use it when the schema needs to evolve without heavy migrations.
Where it fits
It is common in web backends, content systems, catalogs, logs, and event-driven services. In Hamburg, it often shows up in ecommerce, media, logistics, and software products that need flexible data access. It also fits teams that want fast iteration without giving up control over queries and indexes.
Core skills
- Document modeling and schema design
- Indexing, query tuning, and aggregation pipelines
- Replication, sharding, and backup planning
- MongoDB Atlas setup and cluster operations
- Change streams and data synchronization
Strong professionals know when to embed data and when to reference it. They work cleanly with transactions, read and write concerns, and operational limits. They also keep an eye on memory use, query plans, and storage growth.
When to bring in help
Companies usually bring in freelance expertise when a data model is slowing releases, queries are getting heavy, or a migration needs careful handling. A specialist can also help when a team is moving to Atlas, splitting a monolith into services, or hardening production clusters after load grows.
What good work looks like
Good MongoDB work is predictable, not just fast. The right expert writes queries that are easy to maintain, builds indexes that match real access patterns, and avoids documents that become too large or too nested. They also document trade-offs so the team can keep the model healthy.
Collaboration in Hamburg
Hamburg teams often need a mix of remote and on-site support, especially when product, backend, and operations people need to agree on data shape and rollout steps. Clear communication in English is usually enough, while German can help in mixed local teams. A strong specialist adapts to both modes.
Frequently asked questions
Everything clients usually want to know about MongoDB, in one place.
MongoDB is used for application data that changes often and benefits from a document model. It is a strong fit for product catalogs, user profiles, content systems, event data, and service backends where flexible fields matter. Many teams choose it when they need faster schema changes without constant migration work.
MongoDB and PostgreSQL solve different problems. PostgreSQL is often the better choice for highly relational data and strict SQL workflows, while MongoDB fits document-shaped data and rapid product changes. A good expert can explain when a document model is cleaner and when a relational design is safer.
A strong MongoDB specialist should also know data modeling, API design, and query optimization. Skills around Node.js, Python, Java, or .NET are common because MongoDB work usually sits inside application code. Operational knowledge matters too, especially around backups, monitoring, and deployment.
The right MongoDB experience depends on the risk in the system. A small content app may only need help with schema design and indexes, while a production cluster with heavy traffic needs deeper knowledge of replication, sharding, and recovery. The best indicator is whether the expert has handled a system like yours before.
MongoDB work can often be done remotely because most tasks happen in code, queries, and cluster settings. On-site time in Hamburg can help when a team needs workshops on data modeling, migration planning, or production readiness. Many companies use a hybrid setup so the specialist can align with local stakeholders and then work remotely.
Look for someone who asks about access patterns before talking about indexes. A good MongoDB professional explains trade-offs in plain words, shows how they tested query plans, and can describe past decisions around document structure, aggregation, or sharding. Clear reasoning is a better sign than broad tool lists.
MongoDB Atlas is often the right choice when a team wants managed backups, scaling, monitoring, and simpler operations. Self-managed setups can still make sense when infrastructure rules are strict or integration needs are unusual. A capable specialist can help you compare the operational cost of both options.
MongoDB works best when documents reflect real application objects and related data is used together. Embedding is useful when data belongs together and changes together, while references fit shared or frequently reused records. Good modeling keeps documents focused, queries simple, and updates predictable.
The average hourly rate of freelancers in Hamburg, Germany who have used MongoDB in their recent projects is 93 €, which corresponds to a daily rate of about 743 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used MongoDB in their recent projects, 91% hold at least a Bachelor's degree and 44% hold at least a Master's degree.
On average, freelancers in Hamburg, Germany who have used MongoDB in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Hamburg, Germany who have used MongoDB in their recent projects are German (100%), English (98%), and Spanish (18%).
The most common industries among freelancers in Hamburg, Germany who have used MongoDB in their recent projects are Information Technology (100%), Retail (65%), and Banking and Finance (45%).
The most common business areas among freelancers in Hamburg, Germany who have used MongoDB in their recent projects are Information Technology (100%), Product Development (95%), and Quality Assurance (60%).
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.
Berlin 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Leipzig 
Dortmund 
Essen 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
