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I am a Senior PHP Developer based in London with a strong focus on API design, TDD, and clean architectural practices. I enjoy building modular PHP features that integrate with complex legacy systems, improving extensibility while preserving stability, and I mentor teams to embrace SOLID principles and design patterns. Over the years I have delivered high-availability APIs, implemented robust testing and static analysis, and collaborated across diverse tech stacks (PHP, Python, Go). I thrive on turning challenging requirements into reliable, scalable software using Laravel, Laminas/Zend, Symfony, and related tools, while staying aligned with product goals and quality standards.…I am a Senior PHP Developer based in London with a strong focus on API design, TDD, and clean architectural practices. I enjoy building modular PHP features that integrate with complex legacy systems, improving extensibility while preserving stability, and I mentor teams to embrace SOLID principles and design patterns. Over the years I have delivered high-availability APIs, implemented robust testing and static analysis, and collaborated across diverse tech stacks (PHP, Python, Go). I thrive on turning challenging requirements into reliable, scalable software using Laravel, Laminas/Zend, Symfony, and related tools, while staying aligned with product goals and quality standards.

Igor Olejar

Web Developer, Full Stack Developer, Back-End Developer, +2

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I am a Senior PHP Developer based in London with a strong focus on API design, TDD, and clean architectural practices. I enjoy building modular PHP features that integrate with complex legacy systems, improving extensibility while preserving stability, and I mentor teams to embrace SOLID principles and design patterns. Over the years I have delivered high-availability APIs, implemented robust testing and static analysis, and collaborated across diverse tech stacks (PHP, Python, Go). I thrive on turning challenging requirements into reliable, scalable software using Laravel, Laminas/Zend, Symfony, and related tools, while staying aligned with product goals and quality standards.…I am a Senior PHP Developer based in London with a strong focus on API design, TDD, and clean architectural practices. I enjoy building modular PHP features that integrate with complex legacy systems, improving extensibility while preserving stability, and I mentor teams to embrace SOLID principles and design patterns. Over the years I have delivered high-availability APIs, implemented robust testing and static analysis, and collaborated across diverse tech stacks (PHP, Python, Go). I thrive on turning challenging requirements into reliable, scalable software using Laravel, Laminas/Zend, Symfony, and related tools, while staying aligned with product goals and quality standards.

Available to hire

I am a Senior PHP Developer based in London with a strong focus on API design, TDD, and clean architectural practices. I enjoy building modular PHP features that integrate with complex legacy systems, improving extensibility while preserving stability, and I mentor teams to embrace SOLID principles and design patterns.

Over the years I have delivered high-availability APIs, implemented robust testing and static analysis, and collaborated across diverse tech stacks (PHP, Python, Go). I thrive on turning challenging requirements into reliable, scalable software using Laravel, Laminas/Zend, Symfony, and related tools, while staying aligned with product goals and quality standards.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Aragonese

Intermediate

Work Experience

Senior PHP and Python Developer at BRE Group

May 1, 2025 - December 1, 2025

Wrote modular PHP features integrated into a complex legacy codebase, improved system extensibility without disrupting core services; optimised existing PHP systems for simplicity and security, reducing technical debt; standardised QA processes by designing Python unit test templates, accelerating the development lifecycle for junior team members; mentored the engineering team in SOLID principles, Design Patterns, and TDD.

Senior Developer at Digital Ventures

February 1, 2024 - March 1, 2025

Resolved critical bugs within the legacy codebase using native PHP to ensure system stability and continuity for core business operations; engineered new features in Laravel to modernise the application architecture; enhanced codebase reliability by implementing comprehensive unit tests and static analysis tools; extensively used 3rd-party authentication APIs to ensure legal compliance; assisted the development of high-performance features in Go.

Senior PHP Developer at Ticket Tailor

May 1, 2022 - April 1, 2023

Architected and deployed high-availability API endpoints utilising the Laminas framework; authored comprehensive OpenAPI (Swagger) documentation, providing clear technical specifications for internal and external engineering teams; developed bespoke validation logic for Laminas forms, strengthening data integrity and enhancing the security of user-submitted content; refactored legacy Zend queries to the latest Doctrine DBAL, modernising the database abstraction layer and improving query performance across the application.

Senior PHP Developer at Eseye

October 1, 2021 - January 1, 2022

Optimised and documented a series of complex PHP scripts, increasing system transparency and easing future maintenance; consulted on architectural improvements and established rigorous coding standards to ensure consistency and scalability across the development team; mentored junior developers in advanced debugging techniques and modern PHP development.

Senior PHP Developer at Quickbit

April 1, 2021 - July 1, 2021

Delivered high-impact features and resolved complex defects within PHP and Laravel environments to support evolving business requirements; championed the adoption of automated unit testing using PHPUnit; consulted the DevOps team on the installation and usage of Elasticsearch and the ELK stack; implemented modern coding standards and integrating static analysis tools to enhance system reliability and maintainability.

Senior PHP Developer at Regatta

September 1, 2020 - January 1, 2021

Engineered automated procedures using native PHP within a TDD framework, ensuring all features were built for testability and long-term stability; achieved 100% code coverage by implementing rigorous unit and mutation testing, significantly enhancing the resilience of the application against edge-case failures.