Custom Data Pipelines, ETL Solutions & Scalable Applications
Start Your ProjectDesign and implementation of robust data pipelines for extracting, transforming, and loading data. Automated workflows for batch and real-time data processing with Python, Apache Airflow, and modern orchestration tools.
Seamless integration between diverse data sources - databases, APIs, cloud services, and legacy systems. Data migration strategies that ensure accuracy, consistency, and minimal downtime.
Complex data transformation logic, cleansing, and enrichment. Building scalable data processing systems using Python (Pandas, PySpark), SQL, and cloud-native services for handling large-scale datasets.
Cloud-based data infrastructure on GCP and Azure. Data warehousing, lake solutions, and serverless data processing. Optimized architectures for cost-effective, scalable data operations.
End-to-end web application development using modern frameworks like Vue.js, Quasar, Node.js, and Python. Data-driven dashboards and applications that visualize and interact with your data pipelines.
RESTful APIs, GraphQL services, and third-party integrations. Robust backend systems with MongoDB, PostgreSQL, and modern data access patterns for your applications.
Build intelligent autonomous agents powered by Large Language Models (LLMs). Custom AI workflows with n8n, LangChain, and OpenAI. Intelligent automation and agentic systems that can reason, plan, and execute complex tasks with minimal human intervention.
K2 Solutions is a freelance data engineering and software development service founded by Klemen Koleša. I specialize in building custom data pipelines, ETL solutions, and modern applications that turn raw data into actionable insights.
With deep expertise in data engineering, I help businesses automate their data workflows, integrate disparate data sources, and build scalable data infrastructure. From small-scale data transformations to enterprise-level data pipelines, I deliver solutions that are reliable, efficient, and maintainable.
My approach combines data engineering best practices with full-stack development capabilities, enabling me to build complete solutions - from data ingestion and processing to visualization and application development. I work with startups and established companies to solve complex data challenges and build data-driven applications.
Ready to start your next data engineering or software development project? I'm available for freelance work and consulting. Let's discuss how I can help build custom data pipelines, ETL solutions, or transform your data infrastructure.