Senior Backend Developer (PHP / Laravel) Offline

VANTREXIS is an engineering agency that builds dedicated remote teams for high-growth SaaS companies in the US, UK, and EU. We are looking for a Senior Backend Engineer to develop new features in a complex, integration-heavy product environment.

The Role

You will join a team where AI-augmented development (Cursor, Claude, Copilot) is a daily standard, not a bonus. Your focus will be on delivering clean, typed code within established architectural patterns — and raising the quality bar as you go.

Tech Stack

• Core: PHP 8.2 + Laravel 12.
• Database: MySQL 8 + Redis.
• ORM: Eloquent.
• Auth: Laravel Passport (OAuth 2.0), Spatie Permission (RBAC).
• Queue: Laravel Queue with multiple named workers.
• Cloud: AWS S3, SES, SNS.
• Payments: Mollie.
• Real-time: Pusher, Firebase FCM.
• Integrations: Microsoft Graph, Google API, BIG Register (SOAP).

• Testing: PHPUnit 11.

   

   

What You'll Do

• Build & Architect: Deliver new API endpoints following the Controller → Service → Repository pattern.
• Ownership: Take full responsibility for features from analysis to production deployment.
• Quality First: Write feature tests alongside every new feature to raise current coverage.
• Integrate: Extend and maintain external integrations (Mollie, AWS, Firebase, healthcare APIs).

• Proactive Improvement: Identify architectural bottlenecks and edge cases before they become problems.

   

   

Requirements

• Expert PHP/Laravel: Deep knowledge of Eloquent, Passport, Policies, Events, and Jobs.
• RBAC Patterns: Experience with complex authorization flows and company-scoped roles.
• Database Mastery: MySQL 8 optimization and writing safe, backwards-compatible migrations.
• Mindset: You think like an owner, not just a task-executor; you communicate risks early.
• AI-Tooling: Proficiency in using AI-powered tools to maximize engineering efficiency.

• Testing Culture: A "craftsmanship" approach where untested code is not considered "done".

   

   

Nice to Have

• Experience with Mollie or equivalent payment lifecycles.
• Familiarity with AWS IVS (live streaming) or Pusher.
• Experience using PHPStan / Larastan for static analysis.
• An active GitHub profile or technical pet-projects.

What We Offer

• Remote-first: Work from any safe location in Ukraine.
• Stability: VANTREXIS is an official Diia City resident.
• Cooperation format: We cooperate with specialists under a gig contract model within the Diia City legal framework.
• Paid Time Off: Fully paid vacation days and sick leave policy.
• Health: Corporate medical insurance and mental health support.

• Culture: A small, agile team with a flat structure and zero unnecessary bureaucracy.
   

   

Hiring Process

1. HR Screen: Intro call to discuss your experience, expectations, and salary range.
2. Technical Interview: Deep dive into your engineering skills and architectural thinking.
3. Client Technical Challenge: If the technical interview goes well, the client will provide a time-limited technical assignment to assess your practical skills and decision-making.
4. Challenge Review Interview: If the assignment is successful, you will have a short follow-up interview with the client to discuss your code, technical decisions, and overall approach.
5. Final Decision.