Senior Back-end Engineer

Responsibilities

• Take end-to-end ownership of the backend platform, managing client-facing API schemas, servers, and database infrastructure in AWS.

• Integrate AI-powered solutions directly into core products while building and refining the agent workflows, context, and tooling that enable effective team development with AI across a large codebase.

• Contribute to architectural and design decisions, articulating trade-offs and breaking down complex features into releasable components.

• Design and implement core products within a PHP and Laravel API , building from OpenAPI specifications using domain-driven, service, and repository architectures.

• Build and enhance internal backend systems in Python , including AWS Lambda microservices, in collaboration with cross-functional business units.

• Support and maintain production AWS infrastructure using Terraform, managing services such as ECS, Lambda, API Gateway, SQS, Parameter Store, CloudWatch, and IAM.

Qualifications and Job Requirements

• 5+ years of experience building, operating, and scaling backend systems in production environments.

• Deep proficiency in PHP (ideally Laravel) along with working proficiency in Python .

• Mandatory AI Tooling: Hands-on experience developing features and building context workflows using AI coding agents (Claude Code, Cursor, Codex, or similar).

• Proven experience with event-driven and queue-based architectures, particularly utilizing AWS SQS.

• Experience running containerized services in production, ideally using Amazon ECS.

Pluses

• Experience integrating LLMs into production software, including prompt design, evaluation strategies, and handling non-deterministic outputs safely.

• Familiarity with secrets management tools such as AWS Parameter Store or HashiCorp Vault.

• Experience using large-scale static analysis and automated refactoring tools like PHPStan or Rector.

• Proficiency deploying and maintaining infrastructure using Terraform, Docker, and GitLab CI/CD pipelines.

• Strong knowledge of relational database design, query tuning, and caching platforms, specifically MySQL and Redis.

• Background in production incident management, monitoring, and backend secure design principles.