SQL Experts in Zurich
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Meet FRATCH Experts in Zurich, who have recently used SQL
Marco S.
Last position:
Business Analyst, Data Warehouse Developer at NRW.Bank
Business analysis for risk controlling.
Development of a data warehouse based on MS SQL Server with data from the FIS Cross-Asset Trading and Risk Platform (formerly Front Arena).
Implementation of ETL and transformation logic with T-SQL and Python (Jinja2 template engine).
Modeling and automation of data structures with Data Vault.
Creation of reporting and analysis reports with Microsoft Power BI, including user training and implementation.
Vincent V.
Last position:
IT Business Partner & Enterprise Architect at Sulzer
- Established the Enterprise Architecture function from the ground up for Sulzer Group (~13,500 employees, CHF 3.6B revenue)
- Defined the Technical Governance framework, Target Operating Model, and IT PMO foundation now governing architecture decisions and portfolio demand across all divisions.
- Deployed SAP LeanIX as the authoritative application portfolio system of record - catalogued 500 applications group-wide (140 for Chemtech), onboarded business and IT stakeholders, and initiated integration with ServiceNow to embed architecture data into operational workflows.
- Led the divisional & group wide Application Rationalization initiative
- Decommissioned 15% of the 140 applications Chemtech portfolio, delivering CHF 627k in run-rate savings over two years and materially reducing licensing and support exposure.
- Defined and executed the divisional AI Roadmap in partnership with Sales, Legal, and R&D leadership
- Delivered 4 AI solutions into production (including Sales process harmonization and LLM-based IP conflict detection) from a portfolio of 7 prioritized initiatives.
- Built and owned the 3-year IT Strategic Roadmap for Chemtech
- Aligned cloud and technology architecture with divisional business priorities and a CHF 1.5M annual investment envelope.
- Delivered CHF 500k in cost avoidance by challenging and discontinuing funded but low-value initiatives, demonstrated governance discipline and executive influence, with zero implementation spend.
Gwang Jin K.
Last position:
Data Scientist / Applied AI, Automation & Data Systems Researcher at Independent
- Built and explored applied GenAI, RAG, GraphRAG, local LLM, agentic AI and document-intelligence prototypes for structured analysis, evidence extraction, semantic search, technical reasoning and decision-useful reporting
- Developed private local-LLM workflows and AI system patterns focused on privacy, reproducibility, reviewability, low-cost inference and practical user control
- Built reproducible Python/R workflows for data analysis, automation, API-driven tooling, validation logic, technical documentation and AI-assisted software development
- Designed workflows around explicit assumptions, traceable inputs, reviewable outputs and failure-mode awareness rather than black-box “looks good” demonstrations
- Supported RAHN AG in a chemical/regulatory environment with data extraction and processing around WERCS, a regulatory application for chemical product and compliance data
- Explored complex application/database schemas and wrote nested SQL queries to extract information for mixture calculations, component relationships, regulatory rules and reporting logic
- Continued hands-on development in Git/GitHub/GitLab/Bitbucket, Docker/Linux deployment patterns, REST/API workflows, error handling, technical writing and fast AI-assisted prototyping
- Built technical writing and documentation workflows that turn complex systems into clear runbooks, checklists, decision notes and user-facing explanations
Christoph P.
Last position:
ICT DevSecOps Engineer & Security Coordinator at Abraxas Informatik AG
- Interface role with the SOC team; improved incident response time by 45% through structured escalation processes and proactive security monitoring.
- Defined technical standards for a multi-tenant enterprise platform (10+ services), resulting in a 30% shorter onboarding time for new clients in the public sector.
- Active knowledge transfer and mentoring of a 6-person team; increased team autonomy and established a sustainable engineering culture.
- Reduced time to market by 50% by optimizing CI/CD pipelines and establishing self-service deployments.
- Stack: GitLab CI/CD, Kubernetes, Nexus, Harbor, ArgoCD, HashiCorp Vault, Grafana, Python, PostgreSQL, Java, Spring Boot, Flyway, Quarkus, JBoss, Loki, Go, Kafka, Kustomize, MongoDB
Milan S.
Last position:
Cloud Architect & DevOps at Avaloq
- Main cloud solution architect on a banking SaaS offering hosted in Azure.
- Fully automated the Azure infrastructure in Terraform.
- Reduced cloud costs by 50%.
- Responded to incidents, found root-causes and closed with post-mortems.
Monika E.
Last position:
Tax Specialist at Julius Bär / Bosshard & Partner
- Operational responsibility in tax relief at source
- Took over and stabilized a complex department during a project phase
- Analysis, review, and optimization of existing processes and workflows
- Updating and further development of the specialist manual
- Analysis and resolution of individual cases in an international tax environment
Robin O.
Last position:
Co-Founder & AI Solutions Architect at airdys
- Product strategy, architecture, and technical co-direction
- AI workshops, client onboarding and go-to-market activities
- Design and implementation of AI architectures (LLMs, RAG, MCP, agents, voice, automation)
- Hands-on development of prototypes and production-ready AI integrations
- Consulting clients on AI adoption, workflows, and integration into existing infrastructure
- Collaboration with co-founders on strategic direction
- Collaboration in sales and customer acquisition
Tools and Technologies: OpenAI, Anthropic, Azure, Vercel AI SDK, RAG (Retrieval-Augmented Generation), MCP (Model Context Protocol), FastAgent, VAPI, n8n, make.com, LibreChat, PostgreSQL, OpenAPI, Next.js, Vercel, Docker
Peter W.
Last position:
IT Consultant at WYP-Consulting
Jakob F.
Last position:
Core Team Member at Jafa Consulting
- SME for operational processes, contract negotiation and product design for the implementation of a SaaS contact center solution & carrier services
- Definition of several operational processes, organizational setup, ITSM application integrations, creation of contract schedules and advising contract negotiation
- Scrum Master with agile tooling (processes & automation)
- Commercial manager to create business cases and closing the sales process
- Increasing impact, trusted relationship, and key team member within a short time
Piotr S.
Last position:
CTO Program Manager, Theme Owner / Senior Project Manager at Avaloq Group AG
- Clients: Central banks of the most developed economies in the world, German, Swiss, Luxembourgish, Monegasque, Singaporean, Japanese wealth managers and universal/private banks, world’s largest investment banks
- Accountable for managing the delivery of a portfolio of digital wealth and consumer relationship management initiatives
- Project managing portfolios of projects within CTO product and technology business area (cyber security, architectural changes, re-organisational transformation, 3rd party apps)
- Products: Kernel & Parametrisation for Core Avaloq Banking Platform; modules: CRM, client data management, wealth management, portfolio management (generating over 90% of company revenues)
- Key responsibilities:
- Reporting to Head of Disruptive Innovation Division; stakeholder to five product owners & two domain owners
- Accountable for delivery of annual themes and quarterly key deliverables
- Managing demand vs supply via QBR process: book of work, execution, reporting, risk management
- Directly managing around 40 external consultants (front-end/back-end engineers, BAs, designers)
- Hiring and managing resources in eight countries
- Running quarterly divisional closure meetings presenting achievements and challenges
- Resolving cross-team dependencies and internal/external conflicts
- Owning and controlling maintenance budget; planning, forecasting, execution; ensuring demand matches supply
- Identifying and staffing key roles with chapter leads
- Approach: Agile, Scrum of Scrums, QBR/OKRs
- Technology: Angular, PL/SQL, JavaScript, Confluence, JIRA (JQL)
Bojan A.
Last position:
Full Stack Developer with Angular at Further Education
- Highest level achieved: Certified Mid-Level Angular Developer
- 13 technologies newly learned or refreshed with (re-)certifications
- Current: Docker, Azure, Quarkus
Philipp S.
Last position:
Equity Portfolio Manager - Digital Wealth Management at Interactive Brokers LLC
- Solely responsible for two portfolios totaling USD 1 million with an average monthly performance of 2%
- Responsible for the investment strategy, specializing in US equities and ETFs (exchanges: NASDAQ and NYSE)
- Market, trend, data, and technical chart analysis
- Risk management – diversification, daily/weekly risk mitigation measures (rebalancing) to ensure optimal portfolio profitability
Markus F.
Last position:
Logistics Expert/Coach at RAPID Technic AG
- Coaching, developing fundamentals and leading technical aspects in logistics transformation
- Extending SAP WM functionalities
- Efficiency measures in shuttle warehouse technology
- Setting up logistics operations reporting
- Comprehensive inventory planning and execution
- Preparing the technical and commercial foundations for cooperation with external logistics service providers
- Recommendations for the future process and organizational structure
Roland A.
Last position:
Project Manager and Senior Business Analyst at Init Services GmbH
- Project management: Implementation of SAP & EBX integration for master and reference data management and led development of AI supported services for data management and privacy-oriented solutions
- Business analysis: Executed in-depth requirement gathering and data analyzes for MDM implementation, supported service integration using REST APIs to enhance service interoperability, led the requirement gathering, analysis, and implementation of agent-based AI services
- Technologies: SAP BP & FICO & MM, Tibco EBX, n8n, custom AI development in Java, Python, RDBMS, cloud
Daniel S.
Last position:
Senior Manager at devpoint GmbH
- Design and co-implementation of an insolvency management platform in Germany for a client (based on an AI development tool)
- Concept, requirements engineering, and implementation support for a Dubai-based company to integrate processes into a CRM
- Business analysis and requirements engineering at Swisscom for integrations
- Integration of a new knowledge management system into the business processes at Swisscom AG – REST API definition
- Project manager, consultant, and sparring partner for the realignment/process digitalization at GIB Solutions AG
- Process designer and prototype for an AI-based real estate marketing system in Dubai
- Interim head of the ICT department at a telecom company, reorganizing and optimizing processes with a team of 5 at GIB Solutions AG
- Agile requirements engineer / external PO for a web-based solution for the German company DEHN AG
- Project management and consulting for the existing marketing and campaign planning solution at Swisscom AG
- Building the ALoHA nearshore offering at devpoint
Discover over 15,000 top freelancers
Statistics of experts using SQL
Aggregated from the professional profiles of matched freelancers.
Experience
23 years (Switzerland: 24 years)
Position duration
2.3 years (Switzerland: 2.9 years)
Positions per freelancer
12 (Switzerland: 14)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Banking and Finance, Information Technology, Professional Services
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
88% (Switzerland: 84%)
Master's degree or higher
70% (Switzerland: 59%)
Doctorate
12% (Switzerland: 10%)
Certifications per freelancer
6 (Switzerland: 5)
Most common languages
English, German, French
Speak two or more languages
100% (Switzerland: 98%)
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Zurich 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 Zurich using SQL
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
SQL experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Banking and Finance (85%)
- Information Technology (83%)
- Professional Services (61%)
- Insurance (49%)
- Government and Administration (41%)
- Telecommunication (39%)
- Manufacturing (37%)
- Education (32%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What SQL does
SQL is the standard language for working with relational data. Companies use it to store, retrieve, update and analyze information in structured tables connected by defined relationships. SQL supports everything from customer records and financial transactions to operational dashboards and product analytics.
Where it is used
SQL sits behind many business-critical systems across finance, insurance, healthcare, manufacturing, retail and technology. Typical deliverables include:
- Relational database schemas and migration plans
- Reporting queries, dashboards and analytical data sets
- Data validation, reconciliation and transformation workflows
- Stored procedures, views and reusable query components
Ecosystem and tools
Strong SQL specialists work with database engines such as PostgreSQL, MySQL, Microsoft SQL Server, Oracle Database and SQLite. They also understand query planners, indexes, transactions, constraints, permissions and backup strategies. Depending on the project, they connect SQL with Python, Java, .NET, business intelligence tools, ETL services and cloud data warehouses.
When companies need help
Companies bring in freelance SQL expertise when a database has become slow, difficult to change or unreliable under growing workloads. Specialists can support a migration, repair reporting logic, prepare data for a new application or establish standards for a team. In Zurich, remote collaboration is common, while on-site work can help with workshops, sensitive systems and close coordination with local business teams.
What strong specialists deliver
Experienced professionals begin by clarifying business rules, data ownership and expected query results. They write readable SQL, test edge cases and protect data integrity rather than optimizing isolated statements without context. They can explain trade-offs between normalization, denormalization, indexes, caching and warehouse models in language that both technical and business stakeholders understand.
How to assess fit
Look for practical evidence of database design, performance tuning and production support on systems similar to yours. Ask how the specialist investigates a slow query, handles schema changes and verifies a migration without losing or corrupting records. Strong professionals document assumptions, use version control for database changes and leave behind maintainable queries, clear runbooks and useful knowledge transfer.
Frequently asked questions
Key details about SQL, drawn from the questions we get asked most.
SQL is used to query and manage data in relational databases. Companies use it for application data, financial records, reporting, analytics, data integration and operational workflows.
SQL databases use structured schemas, relationships and transactions, which suit consistent business records and complex joins. NoSQL systems can offer more flexible data models or different scaling patterns, so the right choice depends on access patterns, consistency needs and application design.
A strong SQL specialist may also work with database administration, data modeling, ETL, Python, Java, .NET, cloud warehouses and business intelligence tools. Knowledge of security, indexing, monitoring and version-controlled migrations is valuable for production work.
The required depth depends on the work. A focused reporting task may need strong query and data-validation skills, while a database migration or performance issue calls for proven experience with schemas, transactions, execution plans and production risk.
SQL work is often well suited to remote collaboration because specialists can review schemas, queries and database environments securely online. On-site sessions in Zurich can still help with stakeholder workshops, access coordination and sensitive operational systems.
Ask the specialist to explain assumptions, expected results and failure cases before reviewing the query itself. Quality SQL is readable, tested and efficient, preserves data integrity and includes documentation that another professional can maintain.
Bring in an SQL specialist when reporting logic is disputed, queries are slow, a migration is risky or the internal team lacks database capacity. A freelancer can provide focused expertise without taking ownership away from the people who run the wider product or data environment.
Before starting SQL work, clarify the database engine, data volume, access permissions, environments, delivery format and definition of a correct result. Also confirm whether the assignment concerns reporting, application data, migration, performance or ongoing operational support.
The average hourly rate of freelancers in Zurich, Switzerland who have used SQL in their recent projects is 120 €, which corresponds to a daily rate of about 956 € based on an 8-hour working day.
Of the freelancers in Zurich, Switzerland who have used SQL in their recent projects, 88% hold at least a Bachelor's degree, 70% hold at least a Master's degree, and 12% hold a doctorate.
On average, freelancers in Zurich, Switzerland who have used SQL in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 2.3 years.
The most common languages among freelancers in Zurich, Switzerland who have used SQL in their recent projects are English (100%), German (93%), and French (49%).
The most common industries among freelancers in Zurich, Switzerland who have used SQL in their recent projects are Banking and Finance (85%), Information Technology (83%), and Professional Services (61%).
The most common business areas among freelancers in Zurich, Switzerland who have used SQL in their recent projects are Information Technology (95%), Product Development (78%), and Project Management (76%).
Main locations of FRATCH Experts, who have recently used SQL
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.
Basel 
Bern Countries:
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