Senior PHP/Yii Developer – Platform Scaling, API Integrations

About the Role

We are a global fitness and e-commerce brand that has been serving Russian-speaking clients for 10 years. Our platform is built on the Yii framework and is currently undergoing a significant transition. We are looking for a professional, Russian-speaking Full-Stack Developer to join our team long-term to help stabilize our core, migrate legacy systems to 3rd party providers, and prepare for mobile expansion.

The Immediate Mission:

Our top priority is a major overhaul of our automated communication and logistics systems. We are moving away from internally handled processes to more robust, 3rd party solutions to improve reliability and deliverability.

Urgent Tasks:

Email Infrastructure Migration: We need to outsource our automated system emails (transactional, triggers, and marketing) to a 3rd party provider (e.g., SendGrid, UniSender, or similar).

You will need to audit our current PHP mail logic and migrate it to a reliable API-based system to ensure 100% deliverability.

Abandoned Cart Recovery: Refine and fix our trigger system so that every abandoned cart receives a follow-up email/notification within a strict 15-minute window.

Logistics API Integration:

Seamlessly integrate our shipping provider's API so that customer data and order details are transmitted automatically upon purchase.

Future Projects & Expansion:

• Mobile App Integration: A major upcoming task is to connect our platform with a 3rd party Apple/Android app solution. We want to offer our users a hybrid experience where they can seamlessly watch courses either via a web browser or through a dedicated mobile app, requiring synchronized progress and user data.
• Gamification: Implementing user milestones, progress tracking, and reward systems within the fitness courses.
• Internationalization (i18n): Preparing the backend and frontend to support English and Spanish versions of the site.

Requirements

• Expert Yii Knowledge: Deep experience with Yii 1.x or 2.x (please specify which you are most comfortable with).
• API Specialist: Proven experience integrating 3rd party REST/SOAP APIs and handling webhooks.
• Full-

Stack Capability:

Strong Backend (PHP/MySQL) skills are a must; proficiency in Frontend (JS/CSS) is required for UI changes.

• Language: Must be fluent in Russian for team communication.
• Availability: 30–40 hours per week. We are looking for a dedicated partner, not a "quick fix" freelancer.

Why Join Us?

This is a stable, long-term project with a high-traffic production environment. We value developers who don't just "fix bugs" but suggest better ways to build the architecture to support our 10-year legacy and future growth.

Contract duration of more than 6 months. with 40 hours per week.

Languages:

Russian.

Mandatory skills:

Yii2, API, Custom PHP, API Integration, Web Design, UX & UI, Web Development, Website Optimization, Ecommerce Website, PHP