Senior PHP/Symfony Backend Engineer with over 10 years of experience delivering scalable and reliable solutions for enterprise-level systems.
Aktualisiert am 27.10.2025
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 27.10.2025
Verfügbar zu: 100%
davon vor Ort: 100%
Symfony
PHP
React
JavaScript
TypeScript
SQL
Docker
AWS
Terrraform
PostgreSQL
Redis
RabbitMQ
GitHubActions
PHPUnit
Pest
CleanArchitecture
DomainDrivenDesign
DependencyInjection
TestDrivenDevelopment
DockerCompose
GitLabCI
TechnicalLeadership
ContinuousImprovement
Spanish
Muttersprache
English
Full Professional Proficiency (C1)
German
Basic / Conversational (A2?B1)

Einsatzorte

Einsatzorte

Munich (+500km) Cologne (+50km) Berlin (+50km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

2 Jahre 2 Monate
2023-06 - 2025-07

Directed backend development of an in-house Ad Manager platform

Senior PHP Developer / Backend Engineer (Symfony)
Senior PHP Developer / Backend Engineer (Symfony)
  • Directed backend development of an in-house Ad Manager platform (PHP 8, Symfony, Redis, RabbitMQ, MySQL, AWS), supporting multi-platform ad delivery.
  • Optimized ad delivery performance, improving fill rate by 15?25% and reducing latency by approximately 20%.
  • Built and maintained CI/CD pipelines with GitLab CI and Docker, shortening release cycles from weekly to daily and reducing change failure rates below 5%.
  • Introduced observability and alerting for ad services, cutting mean time to recovery (MTTR).
  • Collaborated with cross-functional teams to deliver AI-based features that enhanced user engagement by 10%.
BurdaForward / BCN
Munich, Germany (Hybrid/Remote)
3 Jahre 9 Monate
2019-06 - 2023-02

Developed and maintained high-performance backend services

Senior Software Engineer
Senior Software Engineer
  • Developed and maintained high-performance backend services for CHECK24?s e-commerce and comparison platform, processing millions of records daily.
  • Refactored legacy modules with Symfony and Doctrine, improving throughput by 30% and maintainability across distributed systems.
  • Worked closely with an 8-member engineering team to define scalable architecture and enforce quality standards (testing, CI/CD).
  • Reduced production incidents through consistent test coverage and deployment automation.
CHECK24 Vergleichsportal GmbH
Munich Area, Germany
7 Monate
2018-11 - 2019-05

Defined architecture and best practices that reduced development time

Tech Team Lead / Senior PHP Developer
Tech Team Lead / Senior PHP Developer
  • Led a 5-person development team in designing and delivering PHP/Symfony-based enterprise solutions.
  • Defined architecture and best practices that reduced development time for new features by 25%.
  • Acted as primary liaison between business stakeholders and engineering, aligning delivery goals with client objectives.
Task Force Consulting SAS
Bogotá, Colombia
4 Jahre 8 Monate
2014-03 - 2018-10

Delivered custom web solutions

Web Developer
Web Developer
  • Delivered custom web solutions using PHP, Symfony, MySQL, JavaScript, and Node.js for B2B and public-sector clients.
  • Enhanced application scalability by optimizing database queries and caching layers.
ITO-Software
Bogotá, Colombia
7 Monate
2013-07 - 2014-01

Developed internal administration modules to automate manual processes

Information Systems Developer ?
Information Systems Developer ?
  • Developed internal administration modules to automate manual processes, increasing operational efficiency.
Fundación San Antonio
Bogotá, Colombia

Aus- und Weiterbildung

Aus- und Weiterbildung

2022

Bachelor of Engineering (B.E.) ? Computer Software Engineering (completed part-time alongside professional work)

Fundación Universitaria Panamericana, Bogotá, Colombia


2012 ? 2014

Information Systems Analyst and Developer

SENA, Bogotá, Colombia


Certifications

  • AWS Certified Developer ? Associate (Planned)
  • Symfony Certification (Planned)

Kompetenzen

Kompetenzen

Top-Skills

Symfony PHP React JavaScript TypeScript SQL Docker AWS Terrraform PostgreSQL Redis RabbitMQ GitHubActions PHPUnit Pest CleanArchitecture DomainDrivenDesign DependencyInjection TestDrivenDevelopment DockerCompose GitLabCI TechnicalLeadership ContinuousImprovement

Produkte / Standards / Erfahrungen / Methoden

Professional Summary

Senior PHP/Symfony Backend Engineer with over 8 years of experience delivering scalable and reliable solutions for enterprise-level adtech and e-commerce systems. Proven success in optimizing backend performance and delivery systems. Strong expertise in PHP 8, Symfony, AWS, and CI/CD automation with a focus on system stability, clean architecture, and collaboration across multidisciplinary teams. Recognized for driving operational efficiency and mentoring peers to achieve business and engineering excellence.


Core Skills

Cloud & DevOps:

  • AWS (EC2, S3, Lambda)
  • Docker
  • GitLab CI/CD
  • Nginx
  • Linux
  • Git


Data & Messaging:

  • MySQL
  • Redis
  • RabbitMQ
  • NoSQL
  • Caching Strategies
  • Message Queues


Testing & Quality:

  • PHPUnit
  • TDD
  • PHPCS
  • Xdebug
  • Code Reviews
  • CI/CD pipelines


Architecture & Methodologies:

  • Microservices
  • REST APIs
  • DDD
  • SOLID
  • Event-Driven Systems
  • Clean Architecture


Collaboration & Tools:

  • GitHub
  • Jira
  • Agile/Scrum
  • UML
  • Documentation


Soft Skills:

  • Leadership
  • Mentoring
  • Performance Optimization
  • Analytical Problem Solving


Key Projects

2024 - 2024

Role: Ad Manager Optimization 

Customer: BurdaForward 


Tasks:

Refactored delivery pipelines and caching layers, reducing ad response times.


2021 - 2021

Role: CI/CD Transformation 

Customer: CHECK24


Tasks:

Migrated legacy manual deployments to GitLab CI/CD with Docker.

Programmiersprachen

PHP 8
Symfony
JavaScript
TypeScript
Node.js
Python
Composer
PSR Standards

Einsatzorte

Einsatzorte

Munich (+500km) Cologne (+50km) Berlin (+50km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

2 Jahre 2 Monate
2023-06 - 2025-07

Directed backend development of an in-house Ad Manager platform

Senior PHP Developer / Backend Engineer (Symfony)
Senior PHP Developer / Backend Engineer (Symfony)
  • Directed backend development of an in-house Ad Manager platform (PHP 8, Symfony, Redis, RabbitMQ, MySQL, AWS), supporting multi-platform ad delivery.
  • Optimized ad delivery performance, improving fill rate by 15?25% and reducing latency by approximately 20%.
  • Built and maintained CI/CD pipelines with GitLab CI and Docker, shortening release cycles from weekly to daily and reducing change failure rates below 5%.
  • Introduced observability and alerting for ad services, cutting mean time to recovery (MTTR).
  • Collaborated with cross-functional teams to deliver AI-based features that enhanced user engagement by 10%.
BurdaForward / BCN
Munich, Germany (Hybrid/Remote)
3 Jahre 9 Monate
2019-06 - 2023-02

Developed and maintained high-performance backend services

Senior Software Engineer
Senior Software Engineer
  • Developed and maintained high-performance backend services for CHECK24?s e-commerce and comparison platform, processing millions of records daily.
  • Refactored legacy modules with Symfony and Doctrine, improving throughput by 30% and maintainability across distributed systems.
  • Worked closely with an 8-member engineering team to define scalable architecture and enforce quality standards (testing, CI/CD).
  • Reduced production incidents through consistent test coverage and deployment automation.
CHECK24 Vergleichsportal GmbH
Munich Area, Germany
7 Monate
2018-11 - 2019-05

Defined architecture and best practices that reduced development time

Tech Team Lead / Senior PHP Developer
Tech Team Lead / Senior PHP Developer
  • Led a 5-person development team in designing and delivering PHP/Symfony-based enterprise solutions.
  • Defined architecture and best practices that reduced development time for new features by 25%.
  • Acted as primary liaison between business stakeholders and engineering, aligning delivery goals with client objectives.
Task Force Consulting SAS
Bogotá, Colombia
4 Jahre 8 Monate
2014-03 - 2018-10

Delivered custom web solutions

Web Developer
Web Developer
  • Delivered custom web solutions using PHP, Symfony, MySQL, JavaScript, and Node.js for B2B and public-sector clients.
  • Enhanced application scalability by optimizing database queries and caching layers.
ITO-Software
Bogotá, Colombia
7 Monate
2013-07 - 2014-01

Developed internal administration modules to automate manual processes

Information Systems Developer ?
Information Systems Developer ?
  • Developed internal administration modules to automate manual processes, increasing operational efficiency.
Fundación San Antonio
Bogotá, Colombia

Aus- und Weiterbildung

Aus- und Weiterbildung

2022

Bachelor of Engineering (B.E.) ? Computer Software Engineering (completed part-time alongside professional work)

Fundación Universitaria Panamericana, Bogotá, Colombia


2012 ? 2014

Information Systems Analyst and Developer

SENA, Bogotá, Colombia


Certifications

  • AWS Certified Developer ? Associate (Planned)
  • Symfony Certification (Planned)

Kompetenzen

Kompetenzen

Top-Skills

Symfony PHP React JavaScript TypeScript SQL Docker AWS Terrraform PostgreSQL Redis RabbitMQ GitHubActions PHPUnit Pest CleanArchitecture DomainDrivenDesign DependencyInjection TestDrivenDevelopment DockerCompose GitLabCI TechnicalLeadership ContinuousImprovement

Produkte / Standards / Erfahrungen / Methoden

Professional Summary

Senior PHP/Symfony Backend Engineer with over 8 years of experience delivering scalable and reliable solutions for enterprise-level adtech and e-commerce systems. Proven success in optimizing backend performance and delivery systems. Strong expertise in PHP 8, Symfony, AWS, and CI/CD automation with a focus on system stability, clean architecture, and collaboration across multidisciplinary teams. Recognized for driving operational efficiency and mentoring peers to achieve business and engineering excellence.


Core Skills

Cloud & DevOps:

  • AWS (EC2, S3, Lambda)
  • Docker
  • GitLab CI/CD
  • Nginx
  • Linux
  • Git


Data & Messaging:

  • MySQL
  • Redis
  • RabbitMQ
  • NoSQL
  • Caching Strategies
  • Message Queues


Testing & Quality:

  • PHPUnit
  • TDD
  • PHPCS
  • Xdebug
  • Code Reviews
  • CI/CD pipelines


Architecture & Methodologies:

  • Microservices
  • REST APIs
  • DDD
  • SOLID
  • Event-Driven Systems
  • Clean Architecture


Collaboration & Tools:

  • GitHub
  • Jira
  • Agile/Scrum
  • UML
  • Documentation


Soft Skills:

  • Leadership
  • Mentoring
  • Performance Optimization
  • Analytical Problem Solving


Key Projects

2024 - 2024

Role: Ad Manager Optimization 

Customer: BurdaForward 


Tasks:

Refactored delivery pipelines and caching layers, reducing ad response times.


2021 - 2021

Role: CI/CD Transformation 

Customer: CHECK24


Tasks:

Migrated legacy manual deployments to GitLab CI/CD with Docker.

Programmiersprachen

PHP 8
Symfony
JavaScript
TypeScript
Node.js
Python
Composer
PSR Standards

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