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Senior Software Engineer - Web App & DevEx

Germany🌐 Remote💼 Full-time🗓 2026-09-02 → 2026-09-25

Core

Build and evolve internal and developer-facing APIs and services that power Runware's Web App and simplify complex AI infrastructure.

Role type

Senior Software Engineer (Backend/API)

Builds

Internal and public APIs, Admin panel, task types, validation, routing, WebSocket/REST functionality

Domain

AI Infrastructure / Developer Experience

Deliverable

production ML models | product features

Required skills

Backend system design, API design, asynchronous workloads, distributed systems, security, reliability, performance, autonomous ownership, AI-assisted development

Preferred skills

PHP, Symfony, Doctrine, WebSockets, public API development, usage-based billing, architectural decision making, mentoring

Technologies

Stripe, WebSocket, REST

Responsibilities

Build and maintain internal and developer-facing APIs; Develop public API functionality including task types and routing; Own and maintain the Admin API; Investigate and resolve production issues and security vulnerabilities; Write, test and review clean, maintainable code; Collaborate with Product and Design to define technical solutions

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