Constantin P.
Laravel / PHP Developer | Upgrades, Maintenance & Stripe
I keep Laravel applications healthy: version upgrades, bug fixing, performance and the integrations that tend to break. What clients usually hire me for: - Upgrading older Laravel apps to the latest version, with PHP 8.x - Taking over and stabilising an existing codebase someone else wrote - Stripe payments, webhooks and subscription billing - Queues and background jobs (Horizon, Redis) that fail silently - Slow pages and heavy database queries Recent work: - E-commerce features for a US client: cart, checkout with Stripe, transactional email via API. 5-star review: "Technically sharp, exceptionally reliable... He respected scope, worked efficiently." - Security scoping review of a multi-tenant SaaS handling sensitive GDPR data, for a UK agency - Two years as the backend developer of two SaaS products at Redwall Media (a cognitive-testing platform and a browser-based PDF editor) - Backend work on a high-traffic real-money gaming platform, where data integrity was non-negotiable - NexVoice: an AI phone receptionist I built myself on Laravel, Twilio and Retell AI How I work: clear written updates, I flag risks early, and I don't touch production without your approval. I use AI tools (Claude Code) to move faster, and I review everything that ships. Stack: PHP 8, Laravel, Livewire, Alpine.js, Inertia, MySQL, PostgreSQL, Redis, Docker, Stripe.
Earnings and projects
Last 6 months ÷ 5.6 months active (since May 2026)
Last 6 months: $3.8k
Billed in all: $3,884$3.9k
$1.9k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 13% in GitHub
Ranked by MRR among everyone on Upwork with the skill.
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