Senior Backend Engineer: Real-Time AI Agent Runtime (Remote)

FDE Times; Cresta; Remote; CHF 123,000 - 189,000; Full time

Benefits offered by this job

Medical, dental & vision plans

Paid parental leave

Health & Wellness allowance

Remote work stipend

Lunch reimbursement

Job summary

Cresta is hiring a senior software engineer to build real-time AI agent infrastructure and a serverless-style function platform. You will solve distributed session management and own developer tooling, CLIs, and test environments, while driving observability and incident response.

You will work with AI-native workflows, leveraging LLMs to accelerate development. The role emphasizes production ownership, high code quality, and mentorship, with a remote-friendly environment and ongoing emphasis on

Qualifications

• 5+ years of software engineering experience in infrastructure, platform, or systems.
• Strong Python and Go required.
• Deep understanding of distributed systems and state management.
• Experience with Kubernetes and cloud-native infrastructure.
• Experience building developer-facing tooling (CLIs, SDKs, local dev environments).
• Excellent communication and ability to mentor others.

Responsibilities

• Build real-time AI agent infrastructure with low-latency runtime.
• Solve distributed session management across scaled-out workers.
• Build a serverless-style function platform and orchestration.
• Own developer tooling, CLI, in-house dev envs, test frameworks.
• Improve production quality with observability and incident response.

Skills

Python

Go

Distributed systems

Kubernetes

Developer tooling

Technical communication

On-call ownership

Job description

Cresta is hiring a senior software engineer to build real-time AI agent infrastructure and a serverless-style function platform. You will solve distributed session management and own developer tooling, CLIs, and test environments, while driving observability and incident response.

You will work with AI-native workflows, leveraging LLMs to accelerate development. The role emphasizes production ownership, high code quality, and mentorship, with a remote-friendly environment and ongoing emphasis on