Senior PHP Backend Engineer — Remote, Large-Scale SaaS

Openkrill; United States; Remote; USD 140,000 - 210,000; Full time

Job summary

Smart Working is seeking a Senior Backend Engineer to own mature production systems, ingest GPS and telematics data, and drive a Yii2-to-Laravel migration in a remote-first setup. You will collaborate with a small team on AI-related work while ensuring data integrity and scalable architecture.

The role emphasizes end-to-end ownership, security and GDPR considerations, and hands-on leadership without management duties. Start date targeted for November 2026.

Qualifications

• ,

Responsibilities

• Own and evolve the PHP backend handling GPS, telematics data, safety events, and DVR video.
• Build and maintain APIs for web, mobile, and partner integrations.
• Lead migrations: Yii2 to Laravel; MariaDB to PostgreSQL; move towards microservices.
• Support backend for AI/vision work in collaboration with the CV lead.
• Take end-to-end ownership of production systems with strong technical judgement.
• Work in a small senior team with flexible processes and safe autonomy.

Skills

PHP expertise

Large-scale systems

API design

Security/compliance

Performance optimization

Remote collaboration

Laravel/Yii2

Testing & QA

Tools

Laravel

Yii2

PostgreSQL

PHP

AWS

Bitbucket Pipelines

PHPUnit

Job description

Smart Working is seeking a Senior Backend Engineer to own mature production systems, ingest GPS and telematics data, and drive a Yii2-to-Laravel migration in a remote-first setup. You will collaborate with a small team on AI-related work while ensuring data integrity and scalable architecture.

The role emphasizes end-to-end ownership, security and GDPR considerations, and hands-on leadership without management duties. Start date targeted for November 2026.