Senior Software Engineer (Backend)

About the role

AppNation is seeking a Senior Software Engineer to design, build, and evolve the backend systems that power its AI‑driven mobile apps used by millions worldwide. You will own end‑to‑end delivery of reliable APIs, data‑intensive services, and asynchronous workflows.

Key responsibilities

• Design, develop, and maintain scalable backend services and APIs using Node.js and TypeScript.
• Implement distributed, event‑driven workflows with message brokers, queues, and background workers.
• Integrate AI capabilities and LLMs, and build AI‑powered product features.
• Optimize relational data models in PostgreSQL and MySQL, and leverage Redis for caching and coordination.
• Ensure production reliability through observability, testing, and incident investigation.

Required profile

• 6+ years of professional software engineering experience with strong ownership of production backend systems.
• Proven experience designing distributed, scalable, and fault‑tolerant architectures.

Required skills

• Node.js, TypeScript
• PostgreSQL, MySQL
• Redis
• Kafka, RabbitMQ or similar message brokers
• Docker, Kubernetes
• Google Cloud Platform
• AI integration (LLMs, AI APIs)

What we offer

• Competitive compensation
• Private health insurance
• Meal and commute support
• Relocation assistance
• Flexible working options