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Refactoring-Strategien: Technische Schulden systematisch reduzieren - Groenewold IT Solutions

Refactoring strategies: systematically reduce technical debt

Software development • 9 January 2026

As of: 23 September 2026 · Reading time: 4 min

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Key takeaways

  • The term "technical debt" is ubiquitous in software development.
  • Like financial debt, technical debt can also accumulate interest and paralyze a project in the long term.

The term "technical debt" is ubiquitous in software development. Like financial debt, technical debt can also accumulate interest and paralyze a project in the long term. But wa...

“Good software is not an accident—it comes from a structured development process with clear quality standards.”

– Björn Groenewold, Managing Director, Groenewold IT Solutions
In short

Refactoring reduces technical debt through targeted code improvements without changing features. Proven strategies.

Extract Method for overly long functions, Dependency Injection for better testability, micro-refactorings in the ongoing development process. And dedicated refactoring sprints for larger architectural improvements.


The term "technical debt" is ubiquitous in software development. Like financial debt, technical debt can also accumulate interest and paralyze a project in the long term.

But what exactly hides behind it and how can companies reduce their technical debt to remain new and competitive?

This article highlights practical refactoring strategies that systematically improve your code base and set the course for a future-oriented software.

What are technical debts and why are they a problem?

The term "technical debt" is ubiquitous in software development.

When planning Refactoring strategies: systematically reduce technical debt from idea to delivery, Legacy Modernisation, Cost Calculator: Legacy Modernisation, Solution: Legacy Reduction sowie Monolith vs. Microservices offer practical next steps on our site.

Technical debts arise when developers consciously or unconsciously compromise code quality to achieve short-term goals.

This can be the quick rollout of a new feature for which there is no time for a clean architecture, or the use of outdated technologies whose modernization is postponed.

At first sight this may seem harmless. However, in the long term technical debt leads to a number of problems:

  • Sustainable development: An unclean code base is difficult to understand and expand. New features require more time because developers only have to fight through spaghetti code.
  • Increased error susceptibility: Complex and poorly structured software is more susceptible to bugs. The troubleshooting and troubleshooting becomes a time-consuming and frustrating process.
  • Demotivated developer teams: Nobody likes to work on a project that is plagued by technical debt. Continuous confrontation with old loads and laborious maintenance can significantly reduce motivation and productivity.
  • Slower new power: If a large part of the resources need to be used for maintenance and troubleshooting, little space remains for innovation and the development of new value-creating functions.

Raw signs of technical debt

Technical debts are not always obvious, but there are some typical signs indicating a burdened code base:

  • Active regressions: After implementing new functions unexpected errors occur elsewhere.
  • Lange integration times: New team members need a lot of time above average to get involved in the project.
  • "Code Smells": Skilled developers recognize problematic areas in the code that indicate structural deficiencies (e.g. duplicate code, too long methods).
  • Distinct test cover: There are only a few or no automated tests, which makes changes to the code risky.
  • Old dependencies: The project uses libraries and frameworks that are no longer up-to-date and may have vulnerabilities.

Strategies for reducing technical debt

The reduction of technical

References and further reading

The following separate references complement the topics in this article:

Frequently Asked Questions (FAQ)

What is this article about: “Refactoring strategies: systematically reduce technical debt”?

Here we cover Refactoring strategies. Systematically reduce technical debt — focused on architecture, process, and business outcomes. In short: The term "technical debt" is ubiquitous in software development.

Like financial debt, technical debt can also accumulate interest and paralyze a project in the long term. But wa...

Who benefits most from the content described here?

Typical readers are business and IT leaders in Software development who want to secure quality, security, and ease of upkeep over the long term.

How does this topic fit into an IT or digital strategy?

In a digital strategy, prioritize stable core processes first, then extensions. See also professional software development and consulting.

For multi-system landscapes, IT consulting and architecture helps align vendors and internal teams.

What are sensible next steps if we need support?

If you need support with design, delivery, or modernization: schedule an appointment or outline your project via contact.

About the author

Björn Groenewold
Björn Groenewold(Dipl.-Inf.)

Managing Director of Groenewold IT Solutions GmbH and Hyperspace GmbH

Since 2009 Björn Groenewold has been developing software solutions for the mid-market. He is Managing Director of Groenewold IT Solutions GmbH (founded 2010) and Hyperspace GmbH. As founder of Groenewold IT Solutions he has successfully supported more than 250 projects – from legacy modernisation to AI integration.

Software ArchitectureAI IntegrationLegacy ModernisationProject Management

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Practical next steps after Refactoring strategies: systematically reduce technical debt

Refactoring strategies: systematically reduce technical debt addresses a practical choice for product and IT teams. Start with one clear goal: align software scope, technical risk, and business value before the next investment.

Check the current process, the data involved, and the result users need. Then record the main risks and define a small first step. This keeps the decision easy to review and gives your team a shared basis.

For implementation support, our custom software development connects the article's guidance with architecture, delivery, and stable operations. Engineering and project ownership stay with our team in Leer, Germany.

This post belongs to Software development. Browse the related Software development articles or use the English software blog for other topics.

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