Patryk Lelonek
> PHP Developer
Backend · REST API · Symfony · Laravel · Vue
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Who I am
I am a PHP Developer with 10+ years of experience, running my own business. I design and build backends for web applications that stay stable under load and genuinely move the client’s business forward - from REST APIs and integrations, through business logic, to high-performance data layers. Along the way I keep the code clean and maintainable.
I work mainly in the PHP ecosystem (Symfony, Laravel), with relational and NoSQL databases and a caching layer. On the frontend I reach for Vue. I have experience in, among others, e-learning and e-commerce projects. I operate on a B2B / contract basis - solo or as part of a team.
Technologies I work with
The stack I use every day to build backends, APIs and high-performance data layers.
backend
The language I work in every day. Modern PHP (typing, OOP, SOLID), clean architecture and maintainable production code.
Building applications and REST APIs - controllers, services, Doctrine ORM, queues and reusable components in scalable projects.
Fast delivery of web applications and APIs - Eloquent, queues, authorization and a rich ecosystem of tools.
databases & cache
Designing relational schemas, optimizing queries and indexes, and ensuring data integrity in transactional applications.
Storing data in a document model (NoSQL) where a flexible schema and fast writes of large volumes matter.
Cache, sessions and queues - speeding up applications and offloading the main database under heavy traffic.
frontend & tools
Reactive interfaces and components on the frontend - panels, forms and views wired to the backend API.
AI-assisted programming - faster development, refactoring, code review and automation of repetitive tasks without losing control over the code.
Version control and teamwork - branching, code review and a clean change history.
Containerized environments for consistent development and repeatable deployments.
Hosting and deploying applications in the cloud - working knowledge of EC2, ECS, ECR, S3, SQS and Lambda, plus environment configuration.
Task and agile workflow management - tracking progress and smooth collaboration with the team.
How I work
Understand the need
I start with a conversation about the business goal and requirements, before the first line of code is written.
Clean code
I write code that is readable, testable and easy to maintain - following good practices.
Performance
I optimize queries, caching and architecture so the application stays fast at scale.
Communication
Regular contact, clear status updates and transparency at every stage of the collaboration.
Get in touch
Patryk Lelonek
Opole
NIP: 7543349472 · REGON: 521595719