Senior Software Engineer - Web App & DevEx

New

RunwareAI Infrastructure

United Kingdom. France. Germany. Spain. Sweden. BelgiumFull-TimeSenior

Salary not disclosed

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Job Details

Required Skills: Backend DevelopmentPHPSymfonyRESTful APIsDistributed Systems

Strong experience building backend systems and APIs
Strong programming experience in one or more backend languages
Experience building reliable, maintainable and well-tested production systems
Good understanding of API design, asynchronous workloads and distributed systems concepts
Strong engineering fundamentals around security, reliability and performance
Strong communication and collaboration skills
Strong ownership and autonomy
Comfortable using AI-assisted development tools
Experience with PHP, Symfony and/or Doctrine (nice to have)
Experience with WebSockets (nice to have)
Experience building public APIs or other developer-facing products (nice to have)
Experience with usage-based billing, credits or financial data (nice to have)

Build and maintain internal and developer-facing APIs and services that power the Web App and developer experience
Develop and evolve public API functionality, including task types, validation, routing and WebSocket/REST behaviour
Own and maintain the Admin API and panel as an internal platform used across Runware
Work with usage, billing and customer data to ensure accuracy and reliability, including Stripe
Investigate and resolve production issues and security vulnerabilities affecting the Web App and its APIs
Write, test and review clean, maintainable code, contributing to strong engineering practices and code quality
Work with Product, Design and engineering teams to clarify requirements, identify dependencies and define well-scoped technical solutions
Contribute to technical decisions, work across frontend and backend boundaries where appropriate, and collaborate with the wider Backend team

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