Hire the best SQL Consultants in Koeln, DE

Check out SQL Consultants in Koeln, DE with the skills you need for your next job.
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Rating is 4.8 out of 5.
based on 120 client reviews
  • $115 hourly
    With a Master's degree in Numerical Physics and extensive industry experience in Data Science and Software Engineering, I offer customized solutions that combine scientific precision and pragmatic know-how to solve complex data problems. My team and I are committed to exceptional customer service, clear communication, and adherence to best industry practices, ensuring that every project not only meets but exceeds client expectations. What I Offer: ✔ ETL/ELT Pipelines: Seamless integration of diverse data sources, ensuring optimal performance and scalability. ✔ Data Warehousing & Business Intelligence: Turning complex data into actionable insights that drive your business forward. ✔ Backend Development: Expertise in architecting and implementing resilient backend infrastructures, focusing on optimizing data processing, seamless API integration, and comprehensive system interconnectivity for enhanced performance and reliability. ✔ Machine Learning & AI: Utilizing cutting-edge technology to create predictive models that unlock predictive insights from your data. Joining forces at 2pi IT Solutions GmbH, our team comprises specialists with deep roots in numerical physics, statistics, and computer science. We are recognized experts in business intelligence, big data, cloud services, machine learning, and AI. Our toolbox of technologies that enable us to develop at high speeds includes, among others: 🧰 Advanced Python for robust back-end development, tested with pytest, modern type-hinted syntax, and checked with mypy for code integrity. 🧰 FastAPI for high-performance RESTful APIs with automated Swagger UI documentation. 🧰 SQLAlchemy for schema design and pydantic for robust data modeling, ensuring seamless data operations. 🧰 Diverse database management with PostgreSQL, BigQuery, Redis, MongoDB. 🧰 Insightful dashboards through Tableau, Metabase, PowerBI. 🧰 Cloud solutions architecture on AWS, Azure, GCP alongside containerization with Docker, for flexible, scalable infrastructure. Discover more at: 🔗 simontitz.com 🔗 2pi-it.com Are you looking to enhance your tech team or to implement a data driven software project? Reach out, and let’s transform your vision into an impactful reality.
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    Back-End Development
    Google Cloud Platform
    Artificial Intelligence
    API Development
    Software Development
    Amazon Web Services
    Quantitative Analysis
    Cloud Computing
    Quantitative Finance
    Machine Learning
    Data Science
  • $70 hourly
    I'm a full stack developer experienced in building websites and web applications according to your wishes. I am able to adapt my workflow to your needs. - I usually like to work out a general framework ahead - to maximise the quality and speed of the end product, continuous communication and feedback is important to me
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    AWS Fargate
  • $120 hourly
    Hi I am Jens, an experienced software developer and manager of agile software development teams with more than 15 years of professional experience. I offer - agile software development of business and web applications or components of every size and complexity - design, planning, management, implementation, deployment and support
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    Project Management
    .NET Framework
    Web Application
    Entity Framework
  • $70 hourly
    Well-qualified Full Stack Developer familiar with wide range of programming utilities and languages. Knowledgeable of backend and frontend development requirements. Handles any part of process with ease. Collaborative team player with excellent technical abilities offering 9 years of related experience.
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    Web API
  • $25 hourly
    As a QA Manual, I have sharpened my skills in various testing methodologies, including functional, non-functional, regression, and usability testing. One of my key strengths is my ability to maintain detailed test documentation, which includes clear and short reports of test results, defects, and testing progress. I understand the importance of effective communication in a team environment and have demonstrated strong written and verbal communication skills to document issues clearly and collaborate with team members and stakeholders. In addition to my technical skills, I am well-versed in Agile and Scrum methodologies. I´m very interested and invested in your company community as well and I´m interested in working with you! I´m truly passionate about QA Manual because I liked finding bugs since I was little and I also liked digging through codes to find the beginning of the problem. I like improving myself and I find it very interesting to learn a lot my whole life because I know that all jobs in the IT world require much learning the entire life. I´m excited to hear from you!
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    GUI Testing
    API Testing
    Android Studio
    Bug Tracking & Reports
    Quality Assurance
    QA Testing
    Software Testing
    QA Engineering
  • $6 hourly
    I am developer rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
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    Oracle PLSQL
    Spring Security
    Spring MVC
    Spring Framework
    Spring Boot
  • $30 hourly
    I am an accomplished professional with a diverse skill set in business analytics, data management, and technology, currently pursuing a Master's in Business Analytics at Nova School of Business and Economics in Lisbon. My expertise encompasses Advanced Data Analysis, Machine Learning, Python, SQL, and effective data visualization with Tableau, supported by a strong academic background in Business Administration from the University of Cologne, Germany.
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    Data Cleaning
    Data Analytics & Visualization Software
    Google Dataflow
    Google Analytics 4
    Microsoft PowerPoint
    Microsoft Excel
  • $20 hourly
    Hello! I am a service designer and GIS specialist with diverse experience in digital product development projects. My main skills are: * User research * System and user journey mapping * Paper and digital prototyping * Information and UX architecture * Web traffic analytics * A/B and usability testing * Digital cartography * Data visualisation * Geospatial data analysis and management * Project management The main software tools I use in my work are: Figma QGIS, ArcGIS Online Flourish Studio HTML/CSS/JavaScript (D3, MapboxGL) SQL
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    Service Design
    User Experience Strategy
    Project Management
    ArcGIS Online
    Information Architecture
    UX Research
  • $90 hourly
    About Me: As a seasoned Software Developer with a focus on Dynamics 365 Finance and Operations (D365 FO), I bring a wealth of experience in driving innovation and technical excellence. My expertise spans across various aspects of development, from X++ and C# programming to SQL database management. With a strong educational background in Computer Engineering from Vistula University, I have honed my skills in delivering high-quality solutions across diverse industries. Skills: Programming Languages: Proficient in X++, C#, and SQL. Technical Expertise: In-depth knowledge of Dynamics 365 Finance and Operations (D365FO), Azure services, and Microsoft Dynamics AX. Problem-Solving: Exceptional ability to troubleshoot technical issues, ensuring swift and efficient resolution. Projects: I have led numerous successful projects, such as: Implementing CI/CD pipelines for enhanced efficiency in development processes. Developing and deploying Dynamics 365 Finance and Operations (D365FO) solutions, streamlining business processes. Managing projects in Dynamics AX, including infrastructure setup and module development.
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    Microsoft Dynamics ERP
    SQL Server Reporting Services
    Microsoft Certified Professional
    Application Lifecycle Management
    Microsoft Azure
    Azure DevOps
    Microsoft Dynamics Development
    Microsoft Dynamics 365
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