Kamen

Team Lead & Senior Backend Engineer (11+ yrs). Writing Java/Spring Boot systems built to survive changing requirements, teams, and technologies.

Varna, Bulgaria Joined on Jul 23, 2026

Work

Team Lead at EGT Digital

Kamen

Sep 25

Management rejected three tech debt proposals. The fourth one passed because I spoke their language.

#career #management #softwareengineering

3 min read

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Kamen

Sep 23

An Engineer Left ddl-auto=update in Staging. Production Ended Up With Two Columns Instead of One.

#backend #database #devops #java

4 min read

Kamen

Sep 21

Testing the Service Layer - Part 2: Where the Shared Ancestor Ends (Chapter 10)

#java #testing #qa #architecture

10 min read

Kamen

Sep 15

Testing the Service Layer - Part 1: What the Generic Suite Owes Every Service (Chapter 10)

#java #programming #architecture #testing

13 min read

Kamen

Sep 14

Our H2 tests passed but postgres in production disagreed

3 min read

Kamen

Sep 11

One Missing Parameter Doubled Our Connection Pool Wait Time

#java #springboot #jpa #hibernate

3 min read

Kamen

Sep 7

The Core Business Logic Module (Chapter 9)

#architecture #backend #java #softwareengineering

12 min read

Kamen

Aug 31

Why almost every ‘Temporary’ Workaround is Permanent (Chapter 8)

#architecture #software #softwaredevelopment #softwareengineering

7 min read

Kamen

Aug 24

What Spring Data Tests Can Miss: Testing Beyond Hibernate’s Persistence Context (Chapter 7)

#database #java #spring #testing

11 min read

Kamen

Aug 17

The Dao Implementation Layer (Chapter 6)

#java #springboot #architecture #hibernate

11 min read

Kamen

Aug 10

The Lombok Illusion (Chapter 5)

#backend #java #softwareengineering #springboot

7 min read

Kamen

Aug 3

Mapping Strategies Without the Magic (Chapter 4)

#java #springboot #architecture

8 min read

Kamen

Jul 27

Anatomy of the Data Access Contract: Protect Your Domain from Framework Leaks (Chapter 3)

#java #springboot #architecture

5 min read

Kamen

Jul 23

Domain Module: Throw Away Anemic Models and Ban `@ManyToMany` (Chapter 2)

#java #softwareengineering #architecture #springboot

7 min read

Kamen

Jul 23

Why Package Structures Won't Save Your Spring Boot Architecture (And How Maven Enforces It) (Chapter 1)

#java #softwarearchitecure #springboot #softwareengineering

5 min read

DEV Community

Kamen

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Writing Debut

GitHub Repositories

Management rejected three tech debt proposals. The fourth one passed because I spoke their language.

Want to connect with Kamen?

An Engineer Left ddl-auto=update in Staging. Production Ended Up With Two Columns Instead of One.

Testing the Service Layer - Part 2: Where the Shared Ancestor Ends (Chapter 10)

Testing the Service Layer - Part 1: What the Generic Suite Owes Every Service (Chapter 10)

Our H2 tests passed but postgres in production disagreed

One Missing Parameter Doubled Our Connection Pool Wait Time

The Core Business Logic Module (Chapter 9)

Why almost every ‘Temporary’ Workaround is Permanent (Chapter 8)

What Spring Data Tests Can Miss: Testing Beyond Hibernate’s Persistence Context (Chapter 7)

The Dao Implementation Layer (Chapter 6)

The Lombok Illusion (Chapter 5)

Mapping Strategies Without the Magic (Chapter 4)

Anatomy of the Data Access Contract: Protect Your Domain from Framework Leaks (Chapter 3)

Domain Module: Throw Away Anemic Models and Ban `@ManyToMany` (Chapter 2)

Why Package Structures Won't Save Your Spring Boot Architecture (And How Maven Enforces It) (Chapter 1)