On-demand webinar: Moving Forward From Legacy Systems

Want to end legacy codebase misery and learn how to reignite your old IT system? Join our on-demand webinar hosted by our CTO - Jerzy Zawadzki.

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What will you learn?

In this webinar, our CTO will help you understand how to deal with legacy IT systems. Such systems often resemble a black box that everyone is afraid to touch. Here are 5 key takeaways:

Maintain your sanity, not legacy systems

Instead of feeling bad about not delivering on time, learn how to take a proactive approach towards diagnosing legacy systems, the issues, and how to strategize ahead.

Learn all the warning signs of old code killing business

Are you building up technical debt? Symptoms like bugs, slow feature releases, incompatibility and missed opportunities are all signs that you need to perform an upgrade.

Know how to convince others of legacy upgrades

Jerzy will walk you through how to measure the efficiency gain from refactoring older systems, allowing you to convince others to upgrade or migrate from legacy systems.

See why you should refactor over a complete rewrite

Your legacy code is the treasure chest of knowledge and ideas, so throwing it away completely is almost never the right idea. Refactoring lets you incrementally get out of legacy hell.

Plan, make progress and track results

Learn the tried and tested steps of the good refactoring process and make sure you have good benchmarks to measure your progress against.


  • What does the legacy system mean?
  • Why do development teams allow the code to become legacy code?
Approaching legacy code
  • What are the symptoms of having a legacy codebase?
  • How can legacy code affect you as a Product Owner?
  • Why rewriting from scratch is (almost) never a good idea?
  • Why would you like to work on the legacy system? What can happen if you leave it as is?
Working effectively with legacy code
  • Peek into a typical refactoring process
  • How to handle the cost of refactoring?
  • How to mitigate refactoring risk?
  • How to avoid software rot in the future?
  • Final thoughts
Jerzy Zawadzki CTO at Polcode

Jerzy Zawadzki

Chief Technology Officer

I’ve got 18 years of commercial experience in web development (with full stack background and main focus on PHP).

Over 14 years at Polcode, of which 6 years as a CTO. I always keep up with the latest tech trends to ensure my team remains competitive. I focus on fostering teamwork and innovation to deliver efficient software solutions.

I align technology with our clients’ needs, develop our Technological Pillars, and support clients on the strategy-technology front. You might see me both offline on important tech events and online on our social media profiles—commenting on tech trends and sharing my knowledge.