SQL Experts in Frankfurt

Ornel Franck W.

Purchasing Manager, Logistics, IT Manager & Software Architect

Last position:

Sales Partner at ERGO PRO

Industry: Insurance, Trade, IT
Customers & Projects: Consulting and selling insurance and similar services
Main tasks: Insurance consulting (health insurance, retirement planning, wealth building); commercial services, inside and field sales; sales data analysis and forecasting; customer consulting and support; opening a new sales headquarters for private and business customers; business development & innovation management; business use case development; process optimization; stakeholder management; team leadership and training; preparation and delivery of trainings;
Technologies used: Microsoft Office 365, Microsoft Teams, Jira, Draw.IO, Camunda 8, Java (8, 17,21,25), Git, Spring Boot, Spring Batch, Spring Data REST, Spring Web, Spring Security, J-Unit, Playwright, Lombock, Vaadin, H2, PostgreSQL (16, 17 18), pgAdmin, Docker, LLMs, JasperSoft Studio, JasperReports

Olga L.

IT Business Analyst/Test Manager

Last position:

Business Analyst at VisualVest (Union Investment)

Analyzed, structured, and documented business requirements for digital investment solutions, such as robo-advisors.
Designed applications for new retirement products, including user flows, UX requirements, and functional specifications.
Modeled and optimized business processes and coordinated with stakeholders while taking regulatory requirements in the financial sector into account.

Patrick L.

Senior AI Software Engineer with 9 years of experience delivering practical AI products for enterprise and public sector

Last position:

Senior GenAI Fullstack Developer at SBH (Schulbau Hamburg)

Remote freelance role focused on Agentic AI strategy, secure application patterns, and reusable agentic workflows for a government agency.

Development and implementation of an open source Agentic AI strategy for a government agency, with a focus on GDPR, security, and self hosted solutions
Development of reusable agentic workflows and mini applications that enable non technical employees to solve business problems independently
Implementation of internal business applications with Single Sign On (SSO) and Azure PostgreSQL integration on Hetzner Linux servers
Implementation of nine mini applications with Single Sign On (SSO) and Azure PostgreSQL integration on Hetzner Linux servers
Techstack: Python, Nextjs, Typescript, Streamlit, Anthropic SDK (Claude), Azure, Linux Ubuntu, PostgreSQL, MS SQL, Angular, Authentik

Boian V.

Solution Architect

Last position:

Solution Architect at DB InfraGO AG

The Base Services of DB InfraGO form a central data hub between the company’s IT systems. Common Data Services are developed that distribute data from source systems to a variety of downstream systems (via JMS) and make them available (via REST API). The existing service landscape based on TIBCO is being migrated to DB InfraGO’s cloud-native platform.

Architecture design and implementation for performance-optimized bulk data processing of several million datasets at specific times during the day
Technical specification and documentation of business requirements
Integration of various subsystems (including SAP and Salesforce) through the reimplementation of more than 40 microservices based on Spring Boot
Migration of TIBCO Based microservices from the Enterprise Integration Platform to the Cloud Native Platform using Spring-Boot
Establishment of a deployment pipeline using GitLab CI/CD, Artifactory, and automated deployment to a Kubernetes environment with the help of ArgoCD
Definition and implementation of automated unit, integration, and regression tests

Team Size: 9

Technologies/Tools: Java, Spring Boot, ActiveMQ(JMS), JUnit, Tibco Business Works, Gitlab (CI/CD), Kubernetes (Amazon AWS), ArgoCD, postgreSQL, Oracle, Postman, Hoppscotch, openAPI, Sonarqube

Ali A.

Enterprise Software Architect | Payments, Cloud & AI Platforms

Last position:

Founder & Architect at Independent AI R&D

Fully on-premises LLM document-examination platform for a compliance-critical banking domain: agentic LangGraph pipeline with deterministic verification, every AI judgment structured and source-anchored; ~960 automated tests, zero data egress
GPU throughput engineering (quantized serving, speculative decoding, prefix caching): 9.5x extraction speed-up, 500+ multi-document case files per day on a single A100
AI-native EDI/EDIFACT integration platform (~116k LOC Java 25 / Spring Boot 4, 1,900+ tests): LLM-drafted partner mappings machine-verified before go-live (DFDL conformance, field-coverage checks, dry runs), ~99.5% byte match on real customer files — replacing weeks of manual mapping per partner

Joachim A.

Project Manager HubSpot, Tracking + Analytics Expert

Last position:

Project Manager HubSpot, Tracking + Analytics Expert at Swiss Post

Create a tracking concept for Google Tag Manager and Google Analytics including data layer, events, triggers, and reporting
Manage the project team (developers, designers, performance specialists)
Serve as communication interface between stakeholders and digital departments

Alfons G.

Senior Infrastructure Consultant – Technical Project Lead

Last position:

Senior Migration Consultant / Technical Project Lead

Europe-wide re-platforming & centralization

Independently created the migration concept and implementation plan for the Europe-wide centralization and consolidation of IT services for around 20 European companies as part of a re-platforming program.
Migration assessment: analysis of the existing IT, infrastructure, application, and service landscapes of the companies as the basis for the migration strategy.
Development of the centralized target vision and target architecture based on a modern technology stack, taking platform and containerization approaches into account.
Design of a highly available central infrastructure in an active-active model across two data centers; consideration of cloud, infrastructure, application, CMDB, and IAM services.
Development of the migration and transformation roadmap, including defining migration waves, dependencies, requirements, and priorities for the move from decentralized services to the central platform.
Analysis of technical and organizational dependencies, identification of migration risks, and development of a structured approach for step-by-step migration and centralization.
Creation of target, solution, and implementation views for each service domain; design of the end-to-end join-move-leave process as a blueprint for the European rollout (Jira/Jira Asset Management).
Alignment of migration strategy and roadmap with European companies, management, IT, providers, and other stakeholders; presentation of the 12-month roadmap to the Managing Director Europe.

Kevin F.

Senior Consultant and Platform Engineer

Last position:

DevOps and Platform Engineer at DB Systel GmbH

Error analysis and fixes including performance optimization of the in-house developed platform API
Change and incident management in day-to-day operations
Responsible for compliance with security and compliance requirements
Vendor management for software development and maintenance
Planning and execution of migration of legacy services to a cloud native platform

Role in the project: project staff, implementation team

Used skills: requirements analysis, IT service and application management, IT operations, error analysis and performance optimization, software maintenance and lifecycle management

Project environment: Cloud Native Platform (Kubernetes, Crossplane, AWS, ArgoCD, Grafana)

Justina K.

Data Management & Governance Manager

Oberursel

Last position:

Freelance Consultant for Change & Data Transformation at Freelance Fast Data Consulting

Project, Strategic Consulting – building the Data Strategy and Data Governance Policy for the German branch, client (private bank Julius Bär, headquarters Zurich), March 2026 – present

Design and negotiation of the data strategy with key stakeholders, including obtaining board sign-off (strategic consulting) – in this context, regulatory advice on data regulations in the EU and specifically for Germany. The data strategy includes: Data Lifecycle Management: data capture, data storage, data usage, data retention policy, data quality incident management
Definition of milestones and technical feasibility for implementing TOM for the data strategy, data quality checks, metrics, and a metadata inventory to ensure the bank’s compliance with DORA, BCBS239, and MaRisk requirements.

Core project data change, client: (ING Bank, Frankfurt am Main), March – December 2025

Concept development and solution design for new end-to-end processes including technical interfaces
Definition of synchronization logic and data flows between legacy and target systems (decommissioning of legacy systems)
Analysis and validation of data models
Stakeholder communication with product owners, feature engineers, UX designers, and operational teams for decision-making
Analytics and impact assessments, e.g. to assess downstream effects and regulatory requirements
Documentation and comments on technical and business requirements to support implementation in agile squads

Project digitalization of a user group, client: (ING Bank, Frankfurt am Main), as Interim Product Owner, Jan 2025 – present

Co-shaping key decisions on data architecture and process logic in the context of historized data and user login functionality
Development of business solution concepts for migration to the target system, including system integration and data flows
Support with analytics and impact analyses, especially regarding the ability to provide information to law enforcement authorities
Active coordination with stakeholders from different squads to support decision-making and ensure regulatory requirements are met
Creation of test scenarios for operational teams and backend systems in the area of API management using Postman and Bruno.

Saqib J.

Senior Solution & Software Architect · Interim IT Lead · AI/Agentic AI, Cloud, .NET

Erlensee

Last position:

AI Developer / AI Engineer (Lead) at KOM4TEC GmbH

Conceptual design and implementation of modular AI assistants for sales and business processes in the Microsoft ecosystem (Agentic AI, Copilot extensions)
Frontend architecture and development with React + TypeScript for embedded chat and assistant surfaces (streaming UI, hooks, React Query, OpenAPI clients)
Enterprise-level agent development: reusable skill/agent library, MCP server, review and compliance gates
LLM integration into the user experience: Anthropic (Claude), OpenAI, tool use, RAG pipelines, prompt engineering, guardrails
Architecture and code review consulting as well as mentoring in the AI development team
Integration with Microsoft Graph, Power Platform, and Azure services
Technologies: React, TypeScript, Anthropic Claude, OpenAI, MCP, RAG, Microsoft Graph, Power Platform, Azure

Prasad T.

Solution Architect / Senior Manager – DTC E-Commerce Platform

Last position:

Solution Architect / Senior Manager – DTC E-Commerce Platform at BRITA

Led discovery phase and POC for Shopware to Shopify Plus migration across EMEA markets, evaluating platform suitability, technical architecture, and multi-brand/multi-country capabilities against business requirements.
Designed reference architecture for Shopify Plus implementation incorporating headless front-end patterns (Vue.js, Nuxt.js), CMS integration (Magnolia), and Azure middleware (APIM, Functions, Logic Apps, Service Bus) for 11 EMEA markets.
Defined migration strategy analyzing data mapping, cutover approach, and zero-downtime deployment patterns using Varnish caching, GitOps pipelines, and CI/CD orchestration across six vendor teams.
Architected multi-tenant Shopify Plus governance model with centralized admin, localized storefront customization, and compliance controls (GDPR, data residency).
Prototyped AI-driven search optimization (LLM.txt, JSON-LD) for product discoverability in Google AI results, demonstrating post-launch performance opportunities.
Defined EMEA expansion roadmap for 15+ markets through C-level strategic workshops, identifying phased rollout, market-specific configurations, and resource requirements.
Tech Stack: React, Nuxt.js, Vue.js, Magnolia CMS, Shopware, Shopify Plus, Azure (APIM, Functions, Logic Apps, Service Bus, Front Door), Varnish, SAP, MS Dynamics, Docker, Kubernetes, GitHub Actions, PostgreSQL, Kafka

Jörn M.

Digital Advisor | Venture & Innovation Consultant

Sulzbach

Last position:

Freelance Senior Business Analyst / Project Lead / Digital Strategy Consultant at Freiberuflich

Freelance consulting for startups, fintechs, SMEs, banks, financial service providers, and established companies on strategic, organizational, and technological topics; focus on analysis, structuring, execution readiness, and stakeholder communication.
Gathering, structuring, and prioritizing business requirements; translating business goals into actionable IT, process, data, and documentation requirements.
Designing and improving digital platforms, user journeys, portal structures, information architecture, and data-driven product/content structures; strong fit for customer portals, partner portals, and B2B2C application journeys.
Analyzing user, reach, search, and platform data to derive product, content, and platform decisions; structuring decision bases for management and delivery teams.
Using Jira, Confluence, Excel, analytics, and automation tools; working in agile and hybrid delivery environments.

Torsten F.

Data Analyst, Requirements Manager

Dreieich

Last position:

Data Analyst, Requirements Manager at Isabellenhütte Heusler GmbH

Analysis of the existing reporting platform including processes and governance topics with stakeholders from sales and marketing.
Detailed analysis and evaluation of client-defined requirements for existing reporting and new dashboards.
Supporting stakeholders in managing sales processes and early detection of KPI trends.
Use of Microsoft Power BI as central analysis and reporting platform.
Developing a proposal for the necessary evolution of processes and the Power BI platform.
Gathering current business processes and defining company-wide KPIs in coordination with stakeholders.
Analysis and inventory of the client's Power BI platform.
Analysis of processes and data governance.
Recording and documenting current business processes.
Developing recommendations for process and reporting platform improvements.
Designing and implementing dashboards in Power BI.
Defining company-wide KPIs and aligning them with stakeholders.
Microsoft Power BI.
Data analytics.
KPI definition and reporting.
Dashboard design and data visualization.
Stakeholder management and requirements management.

Monika T.

Senior Technical Lead

Last position:

Senior ETL Lead at Takeda GmbH

Led design, development, and deployment of data solutions supporting a major pharma acquisition for Takeda Pharmaceutical Company, delivering transparency reporting systems across Azure,Databricks (Python and Shell Scripting) platforms.
Owned,Designed and developed scalable ELT pipelines to process Customer and Product data using Azure, complex SQL, Databricks, and shell scripting, enabling efficient data integration and processing across multiple sources including job orchestration and workflow automation.
Implemented performance optimization techniques (query tuning, parallelism, workload optimization), improving system efficiency and processing time.
Applied strong analytical and problem-solving skills to assess technical solutions and support business requirements for compliance and transparency reporting.
Designed scalable data foundations suitable for downstream analytics and AI workloads.
Led data quality initiatives by assessing multiple source data, defining quality metrics, and establishing processes for monitoring and continuous improvement.

Jan M.