Filip Kralj

Filip Kralj

CTO at easy.bi

CTO at easy.bi, responsible for technical architecture and the company's AI-driven development framework ebiCore. Filip designs systems that are built to scale and built to last.

"The best architecture is the one your team can ship, operate, and evolve without fear."

- Filip Kralj
CTO of easy.bi Creator of the ebiCore agentic AI framework
15+ years of experience
80 articles published
Writing since 2024

Areas of Expertise

AI & Machine Learning

Applying agentic AI and ML to accelerate software delivery and reduce development cost

Cloud Architecture

Designing cloud-native systems on AWS and Azure that handle enterprise-grade workloads

System Architecture

Building modular, event-driven platforms that evolve without rewrites

DevOps & Kubernetes

Automating infrastructure and CI/CD pipelines for zero-downtime deployments

Topics

AI/MLCloud ArchitectureDevOpsKubernetesSystem Design

Articles by Filip Kralj (80)

How to Run Two Systems at Once: The Parallel-Run Playbook
14 min read

How to Run Two Systems at Once: The Parallel-Run Playbook

61% of migration projects exceed planned timelines. This playbook covers the strangler fig pattern, feature flags, data synchronization, and rollback strategies for running legacy and new systems in parallel.

The 7 Reasons Custom Software Projects Go Over Budget
13 min read

The 7 Reasons Custom Software Projects Go Over Budget

Data-driven analysis of 7 reasons custom software projects blow budgets. Root causes, real cost impact, and prevention strategies for each.

Microservices vs. Monolith: When to Split (And When Splitting Kills You)
13 min read

Microservices vs. Monolith: When to Split (And When Splitting Kills You)

Practical decision framework for microservices vs. monolith. Team size thresholds, cost data, and the modular monolith middle ground for DACH mid-market.

AI Strategy for Mid-Market: You Do Not Need a Data Science Team
13 min read

AI Strategy for Mid-Market: You Do Not Need a Data Science Team

Mid-market companies (EUR 20M-500M) do not need data scientists to deploy AI. They need AI-literate engineers and the right implementation partner. A practical AI strategy framework with the 3 opportunities every mid-market company has.

AI Data Readiness: The Assessment Your Team Skips (And Pays For Later)
13 min read

AI Data Readiness: The Assessment Your Team Skips (And Pays For Later)

A practical AI data readiness assessment framework for mid-market companies. Covers data quality checklists, infrastructure requirements, governance gaps, and the minimum viable data you actually need versus what vendors tell you.

From GPT Wrapper to Production AI: The Engineering Gap Nobody Talks About
14 min read

From GPT Wrapper to Production AI: The Engineering Gap Nobody Talks About

The engineering gap between a working ChatGPT demo and production-grade AI. Covers latency, error handling, hallucination management, cost optimization, observability, and security for enterprise LLM deployments.

The 5 AI Use Cases That Actually Pay for Themselves in Year 1
13 min read

The 5 AI Use Cases That Actually Pay for Themselves in Year 1

5 AI use cases with proven first-year ROI for mid-market enterprises. Real cost vs. savings data for document processing, predictive maintenance, customer service automation, demand forecasting, and code generation.

Why 85% of AI Projects Fail Before Production
12 min read

Why 85% of AI Projects Fail Before Production

Data-driven analysis of why 85% of AI projects fail before production. Covers organizational, data, process, and partner-selection causes with a diagnostic checklist for mid-market CTOs in the DACH region.

What Does an AI Pilot Actually Cost? (Real Numbers, Not Guesses)
11 min read

What Does an AI Pilot Actually Cost? (Real Numbers, Not Guesses)

Real cost breakdowns for AI pilots by type: chatbots (EUR 20K-55K), process automation (EUR 30K-80K), and predictive analytics (EUR 40K-120K). Includes hidden costs most budgets miss and a complete budget template.

RAG vs. Fine-Tuning vs. Prompt Engineering: When to Use What
13 min read

RAG vs. Fine-Tuning vs. Prompt Engineering: When to Use What

A practical decision framework for choosing between RAG, fine-tuning, and prompt engineering. Includes cost breakdowns, accuracy benchmarks, data requirements, and implementation timelines for mid-market CTOs.

AI Development Partners: Boutique vs. Big Consultancy vs. In-House
10 min read

AI Development Partners: Boutique vs. Big Consultancy vs. In-House

Big consultancies charge 2-5x more and staff AI projects with juniors. In-house teams cost $1M+ with 38% attrition. Real cost data for choosing your AI partner.

Headless Commerce ROI: When the Architecture Pays for Itself
13 min read

Headless Commerce ROI: When the Architecture Pays for Itself

Headless commerce costs EUR 150-400K but pays for itself in 18-24 months. Get the ROI math, 3-year TCO comparison, and decision framework.

How to Migrate From Magento to Shopware Without Losing SEO Rankings
16 min read

How to Migrate From Magento to Shopware Without Losing SEO Rankings

Step-by-step Magento to Shopware migration framework that preserves SEO rankings. URL mapping, redirect strategy, data migration, and 90-day monitoring plan.

How AI Is Reshaping Enterprise Software Development
8 min read

How AI Is Reshaping Enterprise Software Development

AI is changing how enterprise software gets built. Learn how agentic frameworks, automated QA, and AI-assisted architecture are cutting development timelines by 40%.

LLM Integration Patterns for Enterprise: RAG, Fine-Tuning, and Agents
11 min read

LLM Integration Patterns for Enterprise: RAG, Fine-Tuning, and Agents

51% of enterprises deploying LLMs use RAG. Learn the three production-proven LLM integration patterns - RAG, fine-tuning, and agentic workflows - with architecture decisions, vector database selection, and implementation timelines.

Technical Debt Is a Business Decision - Here's How to Make It
11 min read

Technical Debt Is a Business Decision - Here's How to Make It

Technical debt is not a failure of engineering discipline - it is a financial instrument. Learn the four types of tech debt, when to take it on intentionally, how to quantify it in business terms, and practical refactoring strategies that keep feature development moving.

Automated QA: How AI Changes the Economics of Testing
11 min read

Automated QA: How AI Changes the Economics of Testing

AI-powered QA reduces manual test writing by 60% and cuts testing cycles from weeks to hours. Learn how AI test generation, visual regression testing, and flaky test detection transform testing economics.

The AI Build vs. Buy Decision: Custom Models vs. API Wrappers
12 min read

The AI Build vs. Buy Decision: Custom Models vs. API Wrappers

Custom models cost $100M+ to train from scratch. API wrappers ship in days. Learn when to build, buy, or combine - with cost comparisons, data privacy implications, and vendor lock-in strategies for enterprise AI.

AI-Assisted Code Review: The 60% Time Savings Nobody Expected
10 min read

AI-Assisted Code Review: The 60% Time Savings Nobody Expected

AI-assisted code review cuts review time by 30-50% and catches 15-20% more bugs. Learn how to integrate AI into your PR workflow without replacing human reviewers.

Building AI Features Into Existing Products (Without Starting Over)
10 min read

Building AI Features Into Existing Products (Without Starting Over)

You don't need a rewrite to add AI to your product. Learn where to start - search, recommendations, content generation - plus practical integration patterns and API-based approaches that work with your existing architecture.

Cloud-Native From Day One: Kubernetes, Docker, and CI/CD for Mid-Market
10 min read

Cloud-Native From Day One: Kubernetes, Docker, and CI/CD for Mid-Market

Cloud-native architecture with Kubernetes, Docker, and CI/CD delivers 208x more frequent deployments and 2.6x higher profitability. Learn when mid-market companies need Kubernetes, when Docker Compose is enough, and how to build cloud-native infrastructure without enterprise-level budgets.

Agentic AI Frameworks: What They Are and Why Your Dev Team Needs One
10 min read

Agentic AI Frameworks: What They Are and Why Your Dev Team Needs One

Agentic AI frameworks go beyond code completion - they orchestrate entire delivery pipelines. Learn what separates agentic AI from LLM wrappers, real use cases, and how ebiCore accelerates enterprise development.

API-First Architecture: Why Your Next Platform Should Start With the API
10 min read

API-First Architecture: Why Your Next Platform Should Start With the API

API-first architecture drives 38% faster revenue growth and cuts integration costs by half. Learn how to design, implement, and scale API-first platforms with practical patterns from 100+ enterprise projects in the DACH region.

AI in Enterprise Software: What's Real, What's Hype, and What to Build First
18 min read

AI in Enterprise Software: What's Real, What's Hype, and What to Build First

55% of enterprises adopted AI, but only 22% get past pilot. Learn which LLM patterns, governance frameworks, and first-90-day strategies deliver real ROI.

Building Custom Software That Doesn't Fail: A CTO's Framework
17 min read

Building Custom Software That Doesn't Fail: A CTO's Framework

66% of custom software projects fail. This CTO's framework covers discovery, API-first architecture, tech stack selection, 14-day delivery cycles, and technical debt management to beat the odds.

How Can Team Leader Development Elevate Team Cohesion and Dynamics?
3 min read

How Can Team Leader Development Elevate Team Cohesion and Dynamics?

Enhance team leadership by mastering skills, dynamics, cohesion, and strategies for continuous improvement to drive success and productivity.

The essential elements of business software solutions
7 min read

The essential elements of business software solutions

Explore key elements of enterprise software for manufacturing and engineering success, from SaaS to cloud computing and team management.

The significance of technology in travel and transportation
7 min read

The significance of technology in travel and transportation

Discover how technology revolutionizes travel and transportation, boosting efficiency and customer satisfaction.

The significance of Agile Project Management in the Construction and Real Estate sectors
8 min read

The significance of Agile Project Management in the Construction and Real Estate sectors

Agile project management boosts construction and real estate by enhancing flexibility, collaboration, and client satisfaction.

Transforming Business Management Through the Use of Cloud Based Services.
7 min read

Transforming Business Management Through the Use of Cloud Based Services.

Cloud services enhance business innovation by improving efficiency, decision-making, and modernization, providing flexibility and cost savings.

The Most Valued Team Soft Skills in 2024
5 min read

The Most Valued Team Soft Skills in 2024

Flexibility is vital for businesses, enabling adaptation to challenges and changes, enhancing resilience, and fostering a dynamic work environment.

How can companies evolve using tools powered by intelligence?
7 min read

How can companies evolve using tools powered by intelligence?

AI tools boost business efficiency, foster innovation, and support growth, essential for staying competitive in today's market landscape.

How can updating IT systems improve efficiency, in the sports and fitness industry?
6 min read

How can updating IT systems improve efficiency, in the sports and fitness industry?

Modernizing IT in sports enhances productivity, reduces costs, and drives innovation through agile leadership and advanced technology integration.

Ensuring Business Continuity Through Effective Management; A Key Priority
6 min read

Ensuring Business Continuity Through Effective Management; A Key Priority

Boost business resilience in finance and insurance with risk assessment, CI/CD automation, and training for seamless operational continuity.

How to lead your agile team to success?
3 min read

How to lead your agile team to success?

Master agile principles by building iteratively, learning continuously, and leading teams effectively with proven best practices for success.

The significance of API integration in energy management
5 min read

The significance of API integration in energy management

API integration revolutionizes energy management by boosting efficiency, fostering innovation, and supporting sustainable practices.

How might Energy and Environmental Services gain from Optimization?
7 min read

How might Energy and Environmental Services gain from Optimization?

Optimize energy services with competitor analysis and tech for efficiency, cost savings, and sustainability.

How can online retail companies use technology to expand their business?
7 min read

How can online retail companies use technology to expand their business?

Learn how e-commerce businesses can use technology to drive growth and stay competitive in a rapidly changing market.

How could the use of data analytics solutions revolutionize the sports and fitness industry?
7 min read

How could the use of data analytics solutions revolutionize the sports and fitness industry?

Big data analytics enhances athlete performance, marketing, and efficiency in sports, increasing fan engagement and ensuring financial sustainability.

Navigating the future of travel with technology What's the optimal approach to take?
7 min read

Navigating the future of travel with technology What's the optimal approach to take?

Explore how SaaS and AI transform travel, driving growth and innovation in the industry with cutting-edge strategies and technological advancements.

How might technology improve performance and the administration of sports activities?
8 min read

How might technology improve performance and the administration of sports activities?

Explore how tech transforms sports, boosting performance and management through IT, AI, Agile, and cloud solutions.

How Can AI Transform IT Project Management?
6 min read

How Can AI Transform IT Project Management?

AI boosts IT project management efficiency, optimizes resources, and enhances collaboration, resulting in faster, smarter project outcomes.

The Importance of Team Management in Sports and Fitness
5 min read

The Importance of Team Management in Sports and Fitness

Enhance sports team performance with strategic collaboration and technology for effective management and success.

Key trends that are influencing the landscape of custom software development in the year 2023
6 min read

Key trends that are influencing the landscape of custom software development in the year 2023

Discover 2023's custom software trends: automation, agile methods, and intelligent solutions for business growth and innovation.

Key Elements for Effective Software Development in the Manufacturing Industry
7 min read

Key Elements for Effective Software Development in the Manufacturing Industry

Explore key factors for software development in manufacturing, focusing on SaaS, scalability, and innovation for success.

What new advancements have been made in the travel and transportation industry recently?
5 min read

What new advancements have been made in the travel and transportation industry recently?

AI and automation boost travel efficiency, while sustainability efforts enhance eco-friendliness in transportation, revolutionizing the industry.

How Can API-Driven Software Transform Resource Management?
7 min read

How Can API-Driven Software Transform Resource Management?

API-driven software boosts collaboration, streamlines processes, and provides real-time insights for efficient resource management and decision-making.

How might Agile methodologies impact the management of your business organization?
6 min read

How might Agile methodologies impact the management of your business organization?

Agile methods boost business management through flexibility, collaboration, and innovation, ensuring competitiveness and growth.

What Is Agile Leadership? Exploring Strategies for Agile Governance and Quality Management
3 min read

What Is Agile Leadership? Exploring Strategies for Agile Governance and Quality Management

Agile leadership enhances governance, boosts quality management, and ensures effective framework implementation, driving organizational growth and success.

What are the ways in which technology can revolutionize the construction and real estate sectors?
6 min read

What are the ways in which technology can revolutionize the construction and real estate sectors?

SaaS, AI, and cloud tools enhance productivity and sustainability in construction and real estate, driving tech innovation in these industries.

How can the construction and real estate industries utilize technology to expand their businesses?
7 min read

How can the construction and real estate industries utilize technology to expand their businesses?

Tech drives growth in construction and real estate by enhancing efficiency, productivity, and competitive advantage, transforming industry dynamics.

Ways to Improve Your Construction and Real Estate Company Using Digital Tactics
8 min read

Ways to Improve Your Construction and Real Estate Company Using Digital Tactics

Enhance construction and real estate success with digital strategies: automation, competitor analysis, SMART goals, and data analytics.

How can E-commerce companies utilize technology to enhance their efficiency further?
7 min read

How can E-commerce companies utilize technology to enhance their efficiency further?

Learn how tech boosts efficiency in retail and e-commerce by streamlining operations and enhancing productivity.

Transform Your Business with Scalable Cloud Solutions!
7 min read

Transform Your Business with Scalable Cloud Solutions!

Scalable cloud solutions enhance efficiency, flexibility, and competitiveness, transforming finance and insurance sectors for better performance.

Transform Business Management, in Construction & Real Estate, through Leadership Strategies.
6 min read

Transform Business Management, in Construction & Real Estate, through Leadership Strategies.

Enhance team performance in construction and real estate by focusing on communication, innovation, and adaptability to drive growth and success.

How does real time data processing impact the media and publishing industry?
7 min read

How does real time data processing impact the media and publishing industry?

Real-time data revolutionizes media by boosting engagement, refining strategies, and fueling growth through advanced analytics and technology integration.

What factors are driving the transformation of the construction and real estate sectors by technology advancements?
5 min read

What factors are driving the transformation of the construction and real estate sectors by technology advancements?

Digital transformation enhances construction and real estate by leveraging technology to boost efficiency, cut costs, and improve project outcomes.

What are the advantages of transformation, for logistics and supply chain operations?
6 min read

What are the advantages of transformation, for logistics and supply chain operations?

Digitalization boosts logistics efficiency via leadership, data, and automation. Staying current with trends is vital for competitive edge.

The Journey to Develop a Great Team
6 min read

The Journey to Develop a Great Team

A team is a unified group working together towards common objectives, emphasizing collaboration and shared goals for effective outcomes.

How Mobile Apps Are Revolutionizing Real Estate
10 min read

How Mobile Apps Are Revolutionizing Real Estate

Explore key factors in real estate app development, including advanced features, security, and user-friendly design for success.

10 tips on how to make your team more productive
3 min read

10 tips on how to make your team more productive

Effective teams thrive by aligning on goals, understanding roles, and valuing individual strengths and preferences for optimal collaboration.

What strategies work well for updating construction and real estate in today's world?
6 min read

What strategies work well for updating construction and real estate in today's world?

Explore modernization strategies in construction and real estate to boost efficiency and competitiveness in a digital world.

How can software powered by APIs revolutionize the world of logistics and the management of supply chains?
7 min read

How can software powered by APIs revolutionize the world of logistics and the management of supply chains?

API-driven software optimizes logistics by improving efficiency, reducing costs, and boosting customer satisfaction, ensuring long-term business success.

How can the automation of AI workflows transform the operations of businesses?
7 min read

How can the automation of AI workflows transform the operations of businesses?

AI workflow automation is transforming retail by boosting efficiency, enhancing customer experiences, and enabling strategic decisions.

The impact of technology on transforming the travel and transportation industry.
5 min read

The impact of technology on transforming the travel and transportation industry.

Tech revolutionizes travel, boosting efficiency, enhancing customer experiences, and promoting sustainability, leading to a transformed industry landscape.

How does data analysis and visualization have the power to revolutionize the media and publishing industry?
6 min read

How does data analysis and visualization have the power to revolutionize the media and publishing industry?

Data analysis and visualization boost media engagement, optimize strategies, and ensure long-term success in publishing.

Why proper time tracking is so important for a company?
3 min read

Why proper time tracking is so important for a company?

Boost productivity and gain valuable insights with time tracking, enhancing both personal and business efficiency for optimal performance.

How does Agile Project Management have the potential to revolutionize the Energy and Environmental Services sector?
7 min read

How does Agile Project Management have the potential to revolutionize the Energy and Environmental Services sector?

Agile enhances the energy sector by improving flexibility, fostering collaboration, and driving innovation, ensuring adaptability for successful results.

How Can Technology Integration Enhance Agile Project Management?
2 min read

How Can Technology Integration Enhance Agile Project Management?

Explore how technology revolutionizes Agile Development, optimizing Scrum management and workflows for improved project efficiency and outcomes.

10 Key Factors that make a Project Successful
4 min read

10 Key Factors that make a Project Successful

Clear goals, strong leadership, effective communication, and stakeholder engagement are crucial for project success, ensuring alignment and efficiency.

Why is it crucial for sports and fitness businesses to transition to the cloud?
6 min read

Why is it crucial for sports and fitness businesses to transition to the cloud?

Cloud migration boosts scalability, efficiency, and tech integration, empowering sports enterprises to optimize operations and drive innovation.

What are the effective methods for improving energy efficiency in operations?
7 min read

What are the effective methods for improving energy efficiency in operations?

Explore energy efficiency strategies for businesses, focusing on process optimization, technology, and risk management for sustainability.

How can manufacturing firms achieve process efficiency?
5 min read

How can manufacturing firms achieve process efficiency?

Boost manufacturing productivity and cost management by integrating technology, fostering leadership, and embracing continuous improvement strategies.

How does machine learning contribute to the energy and environmental sectors?
4 min read

How does machine learning contribute to the energy and environmental sectors?

Machine learning enhances energy efficiency, streamlines management, and supports renewable energy projects, driving sustainable advancements.

How can software that utilizes APIs bring about a revolution in the manufacturing and engineering sectors?
6 min read

How can software that utilizes APIs bring about a revolution in the manufacturing and engineering sectors?

API-driven software enhances manufacturing by improving integration, productivity, and agility, while cloud solutions boost data access and security.

What digital approaches yield the results in the manufacturing and engineering sectors?
7 min read

What digital approaches yield the results in the manufacturing and engineering sectors?

Explore digital strategies in manufacturing to boost innovation, efficiency, and competitiveness in a tech-driven industry.

What Are the Best Strategies for Intelligent Project Management in Today’s Digital Era?
2 min read

What Are the Best Strategies for Intelligent Project Management in Today’s Digital Era?

Explore Intelligent Project Management essentials, emphasizing leadership, tech advancements, and data-driven strategies for enhanced project success.

What makes Machine Learning so impactful in transforming the field of Logistics and Supply Chain Management?
6 min read

What makes Machine Learning so impactful in transforming the field of Logistics and Supply Chain Management?

Machine learning enhances logistics and supply chain management by improving efficiency and fostering innovation, leading to optimized operations.

How come cloud based services are transforming the travel and transportation industry?
5 min read

How come cloud based services are transforming the travel and transportation industry?

Cloud and AI boost travel efficiency, enhance customer experience, and streamline financial management, driving industry success and innovation.

How can software solutions, for businesses change the manufacturing and engineering sectors?
6 min read

How can software solutions, for businesses change the manufacturing and engineering sectors?

Enterprise software enhances manufacturing efficiency, fosters innovation, and improves market adaptability, overcoming implementation challenges.

Editorial Standards

Every article on the easy.bi blog is reviewed for technical accuracy and follows our editorial guidelines. Content is grounded in industry data, verified statistics, and hands-on experience from over 100 enterprise projects delivered across the DACH region.