1314 South 1st Street, Unit 206 Milwaukee,WI 53204, US

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+213-986-6946

karl@nexuscgi.com

1314 South 1st Street, Unit 206 Milwaukee,WI 53204, US

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About Nexus CGI

Nexus CGI data integration experts
About

29 Years of Enterprise Data Integration Expertise

I'm Karl, founder of Nexus Consulting Group. For nearly three decades, I've helped enterprise clients in financial services, insurance, and manufacturing solve their toughest data integration challenges. My expertise centers on SQL Server database design and optimization, Python automation and ETL pipelines, Azure cloud integration, and connecting legacy systems that weren't built to work together. I specialize in the kind of complex, multi-system integration projects that require both deep technical knowledge and understanding of business operations. Whether you're dealing with agent management systems, commission processing, GL and AP data flows, or migrating critical systems to the cloud, I bring the experience and technical depth to design solutions that work reliably at enterprise scale.

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Enterprise technology consulting team
MY PROCESS

Streamlined Solutions for
Intelligent Business Growth

step 01

Discovery

I analyze your existing systems, data flows, and integration points to identify the real technical challenges and business requirements.

step 02

Strategy & Design

I design the solution architecture: SQL Server schemas with proper normalization and indexing, Python ETL pipelines with robust error handling, Azure services configuration, and integration patterns that handle your specific data transformation needs.

step 03

Implementation

I build, test, and deploy the solution. You get clean, well-documented code, thorough testing, and knowledge transfer so your team can maintain and extend the work.

IT Consulting FAQ
FAQ's

FREQUENTLY ASKED QUESTIONS

Get answers about my data integration, automation, and database services, and how Nexus helps enterprises solve complex technical challenges.

I specialize in financial services, insurance, and manufacturing—industries where complex data integration, regulatory compliance, and legacy system challenges are common. My experience includes agent management systems, commission processing, financial reporting automation, and multi-system data flows.
SQL Server (database design, optimization, complex queries, stored procedures, SSRS reporting), Python (ETL pipelines, automation, API integration, file processing), and Azure (Data Factory, cloud integration, B2B collaboration). I also work extensively with legacy systems, REST APIs, OAuth authentication, and complex data transformation requirements.
Most engagements begin with a discovery phase where I analyze your existing systems, data flows, and integration requirements. I then design a solution architecture tailored to your specific technical and business needs, followed by implementation with thorough testing, documentation, and knowledge transfer.
I work both on-site (currently based in Milwaukee) and remotely. I'm transitioning to fully remote consulting work, which allows me to serve clients globally while maintaining the deep technical expertise and clear communication that complex integration projects require.
I handle complex scenarios like connecting modern APIs with legacy databases, processing hierarchical data structures, automating multi-source data consolidation, building ETL pipelines with comprehensive error handling, and creating reporting systems that pull from multiple disconnected sources. If your data is stuck in silos or your systems don't talk to each other, that's exactly what I solve.
Project timelines vary based on complexity. A straightforward API integration might take 2-4 weeks, while a comprehensive multi-system data warehouse implementation could take several months. During discovery, I provide a realistic timeline and project plan based on your specific requirements.