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Ten years developing dependable web applications, backend APIs, and developer tools with PHP, Laravel, TypeScript, and React.
Over the course of more than ten years in software engineering, the core objective has remained clear: writing code that solves real problems cleanly, runs reliably under load, and remains straightforward for other engineers to understand and evolve.
As a software engineer at Interpub Limited in London, my daily work centers on backend APIs and modern web applications using PHP, Laravel, TypeScript, React, and PostgreSQL. Alongside my production work, this journal hosts nineteen technical articles and an interactive in-browser Git DAG simulator.
Practical guides on web development, backend engineering, and software craftsmanship.
Feb 4, 2026 —Discover how to train custom AI models locally without breaking the bank using LoRA, and deploy them serverless with Cloudflare Workers AI.
Feb 4, 2026 —As artificial intelligence reshapes software architecture, explore the foundational differences between vector databases and traditional SQL/NoSQL storage engines.
Feb 2, 2026 —RAG (Retrieval-Augmented Generation) is changing how AI models interact with private data. Learn how it bridges the gap between static training weights and real-world facts.
A catalogue of interactive software tools, web platforms, and open-source packages designed and built from first principles.
An in-browser interactive terminal and visual Directed Acyclic Graph (DAG) commit visualizer. Simulates branching, staging, rebasing, stashing, and merging with real-time reactive graph animations.
Full-scale web and mobile preparation platform for UK learner drivers, featuring mock exam engines, real-time analytics, question banks, and subscription management.
Identity document scanning and validation tool combining AWS Textract and Tesseract OCR to assist document validation and entry operations.
A lightweight, modular MVC framework developed from first principles in PHP, implementing an expressive routing layer, ORM with database abstraction, and an extensible authentication pipeline.
A classified index of programming languages, frameworks, databases, and tooling employed in daily engineering practice.
Languages used for web applications, scripting, and backend services.
Frameworks, RESTful API design, and server-side runtimes.
Component libraries, responsive layouts, and interactive user interfaces.
Relational databases, key-value caches, and indexing engines.
Cloud infrastructure, server environments, and content delivery.
Version control, automated testing, containerization, and CI/CD.
“Good software engineering is about solving problems with clarity, writing dependable code, and keeping things simple.”
I'm Ersin Demirtas, a software engineer based in London, UK. Over the past decade, I have worked across the full stack building web applications, APIs, and developer tooling.
My day-to-day work focuses on PHP and Laravel on the backend, alongside TypeScript, React, and Next.js on the frontend. I enjoy practical engineering, clean code, thorough testing, and building useful tools for the web.
Exploring systems programming in Rust and local AI tools
Inquiries regarding software engineering roles, backend systems, or web platforms are welcomed.
I am based in London, United Kingdom. Whether you want to discuss a new software engineering opportunity, exchange thoughts on Laravel and React architectures, or ask about any of my technical articles, please reach out via email.