Senior AI Systems Engineer - Production LLMs & Agents

Permute; Chicago (IL); On-site; USD 120,000 - 150,000; Full time

Job summary

A tech startup is seeking a Senior Software Engineer to design, build, and deploy production-grade AI systems. This role involves working in a fast-moving environment, taking ownership of ideas, and developing AI features. Candidates should have a solid background in software engineering and system design, as well as experience with AI agents and AWS infrastructure. The position emphasizes collaboration with cross-functional teams and the ability to operate effectively in ambiguous situations.

Qualifications

• Strong background in software engineering and system design.
• Solid foundation in algorithms, statistics, and optimization.
• Experience building AI agents, LLM systems, or ML-driven products.
• 5+ years building in/around AWS infrastructure.

Responsibilities

• Design and implement production AI systems and agent architectures end-to-end.
• Build and maintain LLM-powered agents and tool-integration pipelines.
• Develop infrastructure for model evaluation, benchmarking, and monitoring.
• Collaborate with product, research, and engineering teams to deliver AI features.
• Prototype and productionize new approaches in reinforcement learning and agent orchestration.
• Optimize system reliability, performance, and scalability in deployed environments.
• Operate effectively in ambiguous, rapidly evolving startup environments.

Skills

Software engineering

System design

Algorithms

Statistics

Optimization

AI agents

LLM systems

AWS infrastructure

Education

Degree in Mathematics, Physics, Computer Science, or related field

Job description

A tech startup is seeking a Senior Software Engineer to design, build, and deploy production-grade AI systems. This role involves working in a fast-moving environment, taking ownership of ideas, and developing AI features. Candidates should have a solid background in software engineering and system design, as well as experience with AI agents and AWS infrastructure. The position emphasizes collaboration with cross-functional teams and the ability to operate effectively in ambiguous situations.