Senior Back-end Product (PHP, Symfony) - Fluix Team

Accountabilities

• • Own backend features end-to-end, from understanding customer problems and designing solutions through production release and continuous improvement.
  • Design scalable, reliable, and maintainable backend services, APIs, and data models.
  • Scope and decompose work independently, make architectural decisions, and present technical solutions to the team.
  • Challenge requirements and technical approaches when simpler, more effective solutions are possible.
  • Develop new functionality while refactoring existing systems, improving code quality and expanding test coverage.
  • Use customer feedback, data, logs, and production insights to investigate issues and guide product and technical decisions.
  • Incorporate AI tools into daily development for coding, refactoring, code reviews, testing, documentation, and technical investigations, while helping strengthen AI practices across the team.
  • Improve development workflows through automation, stronger observability and alerting, and more effective release processes.
  • Participate in shared on-call and support rotations, investigating production incidents and customer-reported issues, identifying root causes, and implementing long-term solutions.
  • Prepare release plans and coordinate deployments.
  • Collaborate with Backend, Frontend, iOS, Android, Support, and other teams to deliver reliable product experiences.
  • Proactively propose engineering initiatives, improve development practices, and share technical knowledge with colleagues.

  Requirements:

  • 5+ years of backend engineering experience, including ownership of complex features or services from solution design through production.
  • Strong proficiency in PHP and Symfony, with solid knowledge of system and API design, design patterns, clean code practices, and Domain-Driven Design (DDD).
  • Hands-on experience with AWS services such as EC2, S3, SQS, Lambda, DynamoDB, RDS, and IAM, plus familiarity with Kubernetes and serverless architectures.
  • Strong debugging and profiling capabilities, including experience with tools such as Xdebug and Blackfire.
  • Experience with CI/CD, automated testing, and application observability.
  • Familiarity with JavaScript/TypeScript, Node.js, and frameworks such as ExpressJS or NestJS.
  • Demonstrated daily use of AI in software development, with the ability to explain how AI is used, what tasks are delegated, and how outputs are validated; experience building AI/LLM-powered product features is a plus.
  • Good understanding of application security and OWASP principles; familiarity with ISO 27001, SOC 2, or comparable security standards is advantageous.
  • Strong product mindset and autonomy, with the ability to start from a problem, design a solution, make sound technical decisions, and drive delivery through production.
  • Strong communication and collaboration skills, with the ability to contribute to technical discussions and work effectively across multidisciplinary teams.

  Benefits:

  • Opportunity to work on a mature B2B workflow automation product used by customers worldwide.
  • End-to-end ownership across product discovery, backend engineering, production operations, and continuous improvement.
  • Hands-on exposure to workflow automation, document processing, e-signatures, enterprise integrations, offline synchronization, AWS, Kubernetes, and serverless technologies.
  • Daily use and exploration of AI-powered engineering practices.
  • Collaborative environment spanning backend, frontend, mobile, support, and other disciplines.
  • Strong focus on technical mastery, ownership, innovation, and continuous learning.
  • Opportunity to directly influence engineering practices, product improvements, and customer experiences.
  • Culture that encourages fresh ideas, autonomy, knowledge sharing, and meaningful technical initiatives.