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Senior Backend Engineer - Checkout

Salla
Remote, KSA
Full-time
Senior · 6+ years experience
Remote
Discovered 2 weeks ago
PHPGoJavaC#LaravelSQL
Free

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Responsibilities

  • Design, build, and operate scalable backend services supporting Fintech, Checkout, Promotions, Loyalty, and Payment systems.
  • Develop clean, maintainable, and high-performance production code with readability and long-term ownership in mind.
  • Design and evolve RESTful APIs and integrations with internal platforms, payment gateways, and third-party services.
  • Build reliable distributed systems capable of handling high traffic, failures, and asynchronous workloads.
  • Drive architectural decisions with scalability, resilience, maintainability, and operational excellence in mind.
  • Optimize application performance across services, databases, caching layers, queues, and background workers.
  • Participate in architecture discussions, technical design reviews, RFCs, and engineering planning.
  • Ensure services are production-ready through monitoring, logging, alerting, testing, and observability best practices.
  • Write comprehensive unit and integration tests while maintaining high engineering standards through code reviews.
  • Leverage AI-assisted engineering tools responsibly to accelerate development, debugging, testing, documentation, and code quality.
  • Mentor junior and mid-level engineers through technical leadership, design discussions, and engineering best practices.
  • Contribute throughout the full software development lifecycle, from design through deployment and production support.
  • Continuously improve system reliability, developer experience, and engineering standards across the team.

Requirements

  • 6+ years of professional software engineering experience building production backend systems.
  • Strong experience building scalable backend services in at least one modern language such as PHP, Go, Java, or C#.
  • Experience with PHP and Laravel is preferred but not required.
  • Strong understanding of distributed systems fundamentals, including consistency, availability, concurrency, fault tolerance, idempotency, asynchronous processing, messaging, and caching.
  • Experience designing and operating high-scale, highly available backend systems.
  • Proven ability to write clean, maintainable, efficient, and high-performance production code.
  • Strong understanding of software engineering principles, including SOLID, design patterns, clean architecture, and domain-driven design concepts.
  • Experience designing RESTful APIs and integrating with third-party platforms and payment providers.
  • Strong SQL knowledge with experience designing and optimizing MySQL or PostgreSQL databases.
  • Experience with caching technologies, queues, background workers, and performance optimization.
  • Experience writing automated tests, participating in code reviews, and working within modern CI/CD pipelines.
  • Comfortable using AI-assisted development tools to improve productivity, software design, implementation, testing, debugging, documentation, and code reviews.

Preferred Qualifications

  • Experience building Fintech, Payments, Checkout, Loyalty, Pricing, Promotions, or other high-volume transactional systems.
  • Experience with event-driven architectures and distributed messaging systems.
  • Experience with Docker, Kubernetes, cloud platforms (AWS, GCP, or Azure), and Infrastructure as Code.
  • Experience with observability platforms, distributed tracing, metrics, and production monitoring.
  • Experience working within microservices or service-oriented architectures.
  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field is a plus.

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