Applied AI Engineer (LLM Applications)

About the role

Action1, an autonomous patch management platform used by many Fortune 500 companies, is looking for an Applied AI Engineer to build and operate LLM-powered internal solutions, tools, automations and customer-facing AI features end-to-end. The team is remote and sits in the AI Team within R&D. The company wants AI that solves real problems, with engineers able to shape technology choices and product decisions.

Key responsibilities

• Build and operate LLM-powered internal solutions, tools and automations end-to-end
• Ship customer-facing AI features
• Drive technical decisions from design through production rollout
• Own systems in production, including monitoring, reliability improvements and incident response
• Build and maintain LLM evaluation workflows, including quality/safety checks, baselines and regression detection
• Partner with R&D, product and security teams
• Evaluate emerging AI technologies and advocate adoption when justified

Required profile

• Strong software engineering fundamentals with hands-on ownership of production systems; Python required
• Solid LLM application development experience, including context design, structured outputs and orchestration
• Experience building and operating backend services and APIs in production
• Experience designing multi-service architectures and reliable integrations, including stable service contracts, retries and failure recovery
• Ability to balance output quality, latency and cost in production AI systems

Required skills

• Python, FastAPI, PydanticAI
• PostgreSQL, Docker, Docker Compose
• AWS: EC2, ECR, S3, Lambda
• LLM evaluation, experiment design, regression detection, observability
• Nice to have: agentic systems or RAG, lightweight UIs, internal developer or ops tooling, JavaScript/TypeScript, AWS deployment, runtime isolation and sandboxing, B2B SaaS, security, compliance or data governance experience

What we offer

• Fully remote work
• Flexible working hours and stable income
• Benefits and opportunities for promotion
• A collaborative environment with friendly, professional peers