PostgreSQL Experts in Hanover
in minutes from over 15,000 CVs with the power of AI.Hire experts who design reliable PostgreSQL databases, tune queries and indexes, and support migrations, replication, and backup setups. Get fast, precise matching with vetted, available specialists.
Meet FRATCH Experts in Hanover, who have recently used PostgreSQL
Michael Serejenkov
Last position:
Data Scientist at CompuGroup Medical Deutschland AG, docmetric GmbH
Development of AI-based and classical models for analyzing medical and patient data, including medication analyses, diagnosis analyses, forecasts, procedure analyses, dosage analyses, comorbidity analyses, prescription analyses, patient potential analyses, and referral profile analyses. Analyses in the area of Real World Evidence.
- Gathering customer requirements
- Planning the subproject
- Designing and defining KPIs
- Designing and developing models and visualizations of the results using customer dashboards
- Developing and implementing DWH adjustments
- Deriving recommendations for action
Methods, technologies: Simulation, Artificial Intelligence, Python, R, SQL, Microsoft Power BI, Amazon Web Services, Elasticsearch, PostgreSQL, Databricks, Multivariate Statistics
Dennis Schuchardt
Last position:
Lead Full Stack at Self-employed
- Billing software for the second-highest security authority of the Federal Republic of Germany
- Passed security clearance level 2
- Frontend and backend development
- Consulting on the introduction, design, implementation, and development of technical components
- Code reviews, component testing, module testing, group module testing
- Implementation of UI/UX design
- Used technologies: HTML, CSS/SCSS, JavaScript, Node.js, Vue 3, PrimeVue, Webpack, Vuex, Momentum, Jest, NPM, Lodash, Java 17, Spring Boot, Lombok, GraphQL, JUnit, Maven, Keycloak, Python, Docker, CI/CD, Kubernetes, Oracle SQL, Postman, Storybook, Microservices, Monorepo, Jira, Confluence, Scrum, GitLab, AWS, IntelliJ, Visual Studio Code, Neovim, XLSX, responsive Webdesign, BITV 2.0 (U.S. Section 508) / WCAG 2.2
Martin Schaefer
Last position:
MS Fabric Certification
MS Fabric certification with creation of pipelines and notebooks in Fabric using data from Azure, Azure Repos, Azure Boards, and GitHub. Data ingestion via OneLake Explorer, direct IP connection, and API (REST) are the main topics
Kristof Blümel
Last position:
Strategic Consulting at German Grid-Battery Storage Provider
- Consulted on IT security and process optimization, focusing on NIS2 and risk requirements
- Troubleshot and optimized plant core networks using STP, certified hardware, and open-source components such as OPNsense
- Redesigned network segmentation for VLAN rollout in a hybrid multisite multicloud setup using Tailscale VPN
- Facilitated cross-departmental discussions to align technical and social requirements
- Optimized monitoring with Grafana, Telegraf, and SNMP configurations
- Prototyped network setup for a new plant, including VLAN separation with Tailscale VPN
- Automated various scenarios using Python and Bash scripting
Bastian Bührig
Last position:
Backend Developer at SupplyOn AG
In this project, I support the software development of various modules of the supply chain management solution. My responsibilities include the technical implementation and optimization of collaborative SCM processes that help companies make their supply chains more efficient, transparent, and resilient. This modular software platform facilitates communication and Collaboration with suppliers is standardized and digitized, enabling seamless traceability of quality data and supplier evaluations. Technically, I focus on development with Go/Golang for scalable backend services and on the use of Kafka for real-time messaging and event processing. I design and extend GraphQL interfaces for efficient data communication between microservices and support automated build and deployment management using Docker and Gitlab CI/CD pipelines. Data is stored in the modules I work on using a PostgreSQL database.
Technical focus: Go/Golang, Kafka, GraphQL, Docker, Gitlab, CI/CD, DevOps, PostgreSQL, JIRA, Miro
Friedhelm Matten
Last position:
Project at Deutsche Gesetzliche Unfallversicherung
- Collaborated on HL7 FHIR profiling and validation
- Created CodableConcepts (code/value systems), extensions and profiles like Composition and Bundle
- Extensive instance creation and validation
- Used Simplifier.net, Forge and the FHIR Java Validator
Mei-Fang Chen
Last position:
Medical Consultant at Atheneum
- Provided expert consultation by analyzing clinical and market data for 20+ cases, driving data-driven pipeline decisions that optimized R&D prioritization and accelerated project timelines.
- Advised on reimbursement pathways and pricing for critical medicines, aligning clinical data with payer expectations.
Maximilian Mayerhofer
Last position:
Test Data Creation and Management at statutory accident insurance
- Provision of cross-system synthetic test data for test automation for insured persons, companies and external partners in coordination with specialist departments and stakeholders, taking requirements and test cases into account
- Synthesis of test data with regard to data protection and data security
Marvin Woischnik-Lange
Last position:
PACS Senior IT Project Manager at Fraport / ID Engineering
- Took a leading role integrating NECT Ident and NECT Sign (AI-based solutions for identity verification and electronic signature) into ID Engineering's PostgreSQL PACS (Physical Access Control System) used at Fraport.
- Analyzed system architecture and interfaces, and implemented Microsoft Azure REST API integrations for legally compliant identity verification and signature.
- Developed and implemented security-critical workflows in Visual Studio Code to seamlessly embed NECT processes into existing PACS Mulesoft Anypoint Platformâ„¢ structures.
- Contributed to the evolution of the airport security architecture by linking identity verification, ID management, and physical access control with Microsoft Power BI.
- Collaborated closely with NECT and internal IT teams on API configuration, testing, and production rollout.
Torsten Glunde
Last position:
Datavault with Informatica on Oracle at SEFE
- Datavault modeling and performance improvements in Oracle.
- Requirements process with model-driven Datavault automation.
- Preparation of business requirements for the pricing database in the gas and electricity market.
- Sales performance based on Salesforce CRM.
- Tasks: design and development.
- Tools used: Informatica, Oracle, DBT, Docker, DataOps, Airflow Workflow, Python Ingestion, Gitlab CI.
Frank Nitze
Last position:
Developer at In-house development of the HAPPYLIST web application
- Fully developed a CRM system for contact management in network marketing
- Enabled configuration of tags, custom reminders, birthday reminders and more
- Application is productive
- Technologies and methods: Trello, Python, Django, Rest-Framework, Bootstrap, PostgreSQL
Matthias Von Görbitz
Last position:
Managing Partner at IT consulting firm
Discover over 15,000 top freelancers
Statistics of experts using PostgreSQL
Aggregated from the professional profiles of matched freelancers.
Experience
23 years (Germany: 17 years)
Position duration
3.3 years (Germany: 5.1 years)
Positions per freelancer
18 (Germany: 12)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Healthcare, Automotive
Certification focus areas
Information Technology, Business Intelligence, Operations
Bachelor's degree or higher
67% (Germany: 91%)
Master's degree or higher
56% (Germany: 58%)
Doctorate
33% (Germany: 7%)
Certifications per freelancer
3 (Germany: 2)
Most common languages
German, English, 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 Hanover 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 Hanover using PostgreSQL
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
Core database work
PostgreSQL is a relational database for applications that need strong consistency, flexible SQL, and dependable transaction handling. Teams use it for product data, customer records, reporting, and APIs that must stay stable under load. It is often chosen when Postgres must grow with the product.
What specialists deliver
- Schema design for new applications and migrations from older databases
- Query tuning, index work, and slow-query analysis
- Backup, restore, replication, and high-availability planning
- Data modeling for reporting, analytics, and transactional systems
Ecosystem and tooling
Strong PostgreSQL specialists work with extensions, roles and permissions, connection pooling, and monitoring tools. They also understand psql, pg_dump, pg_restore, EXPLAIN, and common cloud setups. Good work keeps the database clean, secure, and predictable.
When companies bring in help
Businesses usually look for freelance PostgreSQL expertise when a system is slow, a migration is risky, or a new release needs safer database changes. In Hanover, this often comes up for software teams, industrial systems, logistics, and internal business applications. Remote support works well, and on-site sessions help when teams want close alignment.
What strong professionals do
A strong specialist reads execution plans, spots bottlenecks, and explains trade-offs in plain language. They care about data integrity, locking, indexes, and recovery, not just about making a query run once. They leave behind documentation that other experts can maintain.
Good fit signals
- Frequent deadlocks, slow queries, or unstable reports
- A migration from MySQL, Oracle, SQL Server, or another Postgres setup
- Need for better schema design or safer release changes
- Unclear backup, failover, or restore procedures
Frequently asked questions
Questions about PostgreSQL? Start with the answers below.
PostgreSQL is used for applications that need reliable relational storage, strong transactions, and flexible SQL. It fits customer platforms, internal tools, reporting, and systems that must keep data accurate under load. Many teams choose Postgres when they want a database that can support both application logic and analytics-friendly queries.
PostgreSQL is often chosen when a project needs richer SQL features, stricter data handling, and more advanced query options. MySQL can be a good fit for simpler use cases, but Postgres is usually preferred for complex schemas, careful consistency rules, and demanding reporting. The right choice depends on the workload and the team’s database skills.
You should bring in a PostgreSQL specialist when queries slow down, migrations feel risky, or your team needs help with schema design, indexes, or replication. They are also useful before major releases, cloud moves, or recovery planning work. A good specialist reduces database risk before it becomes an outage.
A strong PostgreSQL professional usually knows SQL, data modeling, indexing, backups, restore testing, and performance analysis. Knowledge of Linux, shell tooling, monitoring, and cloud database services is also common. For application projects, API teams often value experience with schema migrations and transaction design.
For most PostgreSQL work, remote collaboration is enough because database analysis, tuning, and migration planning can be done from anywhere. On-site time can still help in Hanover when teams want workshops, release planning, or close coordination with internal systems. Many projects use a mix of both.
Look for clear explanations, practical examples, and a structured approach to testing and rollback. A strong PostgreSQL expert can describe why a query is slow, how to verify a backup, and what to watch during a migration. Good signs are careful questions, documented changes, and attention to data integrity.
The most common alternatives to PostgreSQL are MySQL, MariaDB, Oracle Database, and Microsoft SQL Server. Each has its own strengths, but Postgres is often selected for feature depth and flexibility. A specialist should be able to explain when another database is a better fit.
Simple application work may only need a PostgreSQL specialist who can review schemas and keep queries healthy. More complex projects, such as migrations, failover setups, or heavy reporting systems, need deeper experience with planning, testing, and recovery. The harder the data risk, the more senior the expertise should be.
The average hourly rate of freelancers in Hanover, Germany who have used PostgreSQL in their recent projects is 100 €, which corresponds to a daily rate of about 799 € based on an 8-hour working day.
Of the freelancers in Hanover, Germany who have used PostgreSQL in their recent projects, 67% hold at least a Bachelor's degree, 56% hold at least a Master's degree, and 33% hold a doctorate.
On average, freelancers in Hanover, Germany who have used PostgreSQL in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 3.3 years.
The most common languages among freelancers in Hanover, Germany who have used PostgreSQL in their recent projects are German (100%), English (100%), and French (33%).
The most common industries among freelancers in Hanover, Germany who have used PostgreSQL in their recent projects are Information Technology (92%), Healthcare (67%), and Automotive (58%).
The most common business areas among freelancers in Hanover, Germany who have used PostgreSQL in their recent projects are Information Technology (92%), Product Development (83%), and Quality Assurance (75%).
Main locations of FRATCH Experts, who have recently used PostgreSQL
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 
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Leipzig 
Dortmund 
Essen 
Dresden 
Nuremberg Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
