Senior PHP Backend Engineer
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Job Description
Senior PHP Backend Engineer owning PHP backend systems for Smart Working’s telematics, GPS, DVR, and AI platform. Leading Laravel, PostgreSQL, and microservices modernization.
Responsibilities:
- Own and evolve the PHP backend ingesting GPS and telematics data, safety hardware events and DVR video
- Build and maintain APIs for the web platform, mobile application and integration partners
- Deliver the Yii2-to-Laravel migration
- Deliver the MariaDB-to-PostgreSQL migration
- Support decomposition of the monolith into microservices
- Take over systems from a retiring contractor and become productive quickly despite limited documentation
- Support the backend for the AI product line alongside the computer vision lead
- Take end-to-end ownership of production systems
- Work independently within a small senior team while collaborating on AI-related work
- Apply architectural judgement to microservices and database migrations, with attention to data integrity
- Work with Bitbucket Pipelines and PHPUnit
- Make production engineering decisions for systems used by local authorities
Requirements:
- 8+ years of commercial PHP backend development at Expert level
- 5+ years of experience with large-scale SaaS or complex production systems at Expert level
- 3+ years of PostgreSQL experience at Advanced level
- 5+ years of API design and third-party integration experience at Advanced level
- 3+ years of high-volume data processing experience at Advanced level, including event-driven systems and ingestion pipelines
- 3+ years of Laravel and/or Yii2 experience at Advanced level
- 3+ years of PHPUnit experience at Advanced level; Pest or Codeception may substitute
- 2+ years of microservices or monolith-decomposition experience at Intermediate level
- 2+ years of AWS experience at Intermediate level; Azure or GCP may substitute
- Experience in the telematics, fleet or logistics domain at Intermediate level; IoT, GPS/location technology or connected-device experience may substitute
- Experience with video, CCTV or large media file handling at Intermediate level
- Ability to take end-to-end ownership of mature production systems and work independently with limited hand-holding
- Strong complex-system exposure; backgrounds limited to simple or basic applications are not suitable
Benefits:
- Full-time, long-term employment
- Remote-first work arrangement
- Growth and well-being support
- Genuine community-oriented workplace
- Autonomy in a small senior engineering team
- Flexible working within established practices
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