Krakow, Poland, 11 - 13 June 2025
Stability vs Change - Crash Course: Maintaining Reliability with Continuous Feature Delivery.
Conference (INTERMEDIATE level)
Room 4A
Everyone expects stability from software systems. At the same time we expect to be able to deploy features frequently.
Every such deployment - by definition - introduces instability while the change is being deployed. Is this a conflict that can be solved?
In this talk we will guide you through our team journey towards maintaining Reliability and Stability of a ever changing system built from dozens of micro services supporting critical Tier 0 Tesco Identity Service.
We will present how we tackled this problem relying on our Team Culture involving processes and procedures, as well as solutions like Observability, Alerts, Deployment Automation and Certificate Management. We will not offer a silver bullet to kill a chaos daemon. Instead we will present pros and cons of the solutions we carefully selected to improve stability in our system.
Every such deployment - by definition - introduces instability while the change is being deployed. Is this a conflict that can be solved?
In this talk we will guide you through our team journey towards maintaining Reliability and Stability of a ever changing system built from dozens of micro services supporting critical Tier 0 Tesco Identity Service.
We will present how we tackled this problem relying on our Team Culture involving processes and procedures, as well as solutions like Observability, Alerts, Deployment Automation and Certificate Management. We will not offer a silver bullet to kill a chaos daemon. Instead we will present pros and cons of the solutions we carefully selected to improve stability in our system.
Efthymia Moutopoulou
Tesco Technology
Efi is a software engineer with a background in electrical and computer engineering. With a decade of experience in different aspects of software engineering, such as testing, coding and cloud engineering, she is focused on designing and building software and infrastructure to serve customers at scale.
Kamil Sajdok
Tesco Technology
Kamil has been navigating the stormy seas of software development for over 15 years. For 13 of those, he was deeply immersed in the Java world, writing code, wrangling frameworks, and occasionally questioning reality during dependency injection mishaps. Two years ago, he traded his public static void main for YAML files and shell scripts to become a DevOps engineer — and hasn’t looked back (except when debugging CI/CD pipelines at 3 AM).
When he's not automating all the things, Kamil enjoys real-life navigation as a passionate sailor. Whether it’s cloud-native systems or open waters, he’s always looking for the most efficient course.
When he's not automating all the things, Kamil enjoys real-life navigation as a passionate sailor. Whether it’s cloud-native systems or open waters, he’s always looking for the most efficient course.
Rafał Sontowski
Tesco Technology
Rafał is an Engineer, Architect, Manager (in this order), remembering times when Java 1.3 was a thing ;-). Working on solving non-functional requirements for complex systems. Switching focus between Application Design and Infrastructure. Nowadays leading a DevOps team, learning a lot about new technologies from teammates, sharing the experience about solving ever occurring issues impacting Reliability, High Availability and Stability. Privately surprised about many things there are in common between Photography and Sailing and Software Design.
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25
Days
:
14
Hours
:
10
Minutes
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42
Seconds
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Venue address
ICE Krakow, ul. Marii Konopnickiej 17
Phone
+48 691 793 877
info@devoxx.pl