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Stefan Mitrea

@stefanmitrea

I build and modernize PHP microservices, APIs, and Kubernetes-backed platforms for e-commerce, healthcare, and insurance.

Romania

Message

What I'm looking for

I'm looking to build and modernize backend platforms, microservices, APIs, and developer tooling, with ownership of reliability, security, production troubleshooting, and scalable cloud-native workflows.

At PlentyONE, I build and maintain PHP services, REST and GraphQL APIs, MySQL/Redis flows, and Kubernetes workloads for a large-scale SaaS e-commerce ecosystem. I also own Go-based developer tooling, improve local Kubernetes workflows, investigate production incidents, and harden template security.

Previously, I delivered healthcare and insurance workflows across 20+ PHP services at P4B Romania and built the white-label BizzSystems platform at Visual Concept. I modernize Laravel systems, design integrations, improve reliability with testing and observability, and use AI-assisted workflows for analysis, implementation, debugging, and review.

Experience

Work history, roles, and key accomplishments

Software Engineer

PlentyONE

Jun 2025 - Aug 2026 (1 year 2 months)

Built and maintained backend and platform components for a large-scale SaaS e-commerce ecosystem, including PHP services, REST and GraphQL APIs, MySQL/Redis data flows, and Kubernetes workloads. Extended Go developer tooling, hardened security, and drove production reliability improvements.

PHP Laravel Lumen Go Angular TerraUI GraphQL MySQL Redis REST APIs Docker Kubernetes OpenTelemetry GitLab CI CD Nginx

Software Engineer

P4B Romania

Oct 2022 - May 2025 (2 years 7 months)

Developed backend functionality across three healthcare and insurance platforms comprising 20+ PHP services built with Laravel/Lumen and Phalcon. Implemented core business workflows, partner integrations, and modernization efforts to reduce technical debt.

PHP 8+Laravel Lumen Phalcon REST APIs OpenAPI SQL Liquibase Redis Docker PHPUnit GitLab CI CD

Full-Stack Software Engineer

Visual Concept

Feb 2018 - Jul 2022 (4 years 5 months)

Developed and maintained BizzSystems, a large white-label business platform built with PHP, Laravel, Twig, JavaScript, MySQL, Redis, and Docker. Delivered business-critical workflows and strengthened security and performance.

PHP Laravel Twig JavaScript Bootstrap SASS MySQL Redis Docker Nginx Gulp

Co-Founder & Technical Lead

Silent.ro

Jan 2017 - Apr 2021 (4 years 3 months)

Co-founded and operated an online retail business, building and maintaining its PHP/Laravel platform while contributing to sales, operations, and commercial decisions. Led platform integrations and technical growth initiatives, increasing traffic by more than 200% before selling the business.

PHP Laravel Ecommerce SEO Digital Marketing Platform Integration

PHP Developer

Sens Media SRL

Jan 2015 - Dec 2015 (11 months)

Developed and customized WordPress and PrestaShop solutions, extending existing platforms with custom PHP functionality and integrations.

PHP WordPress PrestaShop Custom Development Integration

Independent PHP Consultant

Stedabi Soft

Delivered selected PHP/Laravel, web, and e-commerce projects for independent clients, including payment and third-party integrations. Managed projects end-to-end from requirements through deployment and long-term support.

PHP Laravel Web Development Ecommerce Payment Integration