Senior AI Engineer: Production-Grade Multi-Agent Systems

Remote Crew; Porto; On-site; EUR 60,000 - 80,000; Full time

Job summary

Remote Crew is seeking a Senior AI Engineer to own data pipelines, context systems, and multi-agent infrastructure powering real-time identity verification for banks and fintechs. You’ll productionize AI features and help set engineering standards across the team.

The role focuses on building robust ML-backed backend services, integrating LLMs, and driving MLOps practices with a strong emphasis on security and reliability.

Qualifications

• 5+ years of experience as software, data, or ML engineer in product-centric settings.
• Production-level Python experience building backend services and APIs.
• Hands-on experience integrating LLMs in production, including handling context windows, cost, latency.
• Experience building agent harnesses or multi-agent, autonomous, agent-to-agent systems in production.
• Experience setting up evaluation and metrics for AI systems, and using them to drive real decisions.
• Familiarity with MLOps practices, containers, CI/CD, and at least one major cloud platform.

Responsibilities

• Own the data pipelines that turn register data and web content into structured, audited data with strong quality checks.
• Build the context management layer that decides what your agents and LLMs see, balancing relevance, token budgets, memory, and cost.
• Build agent harnesses: the agent loop, tool calling, context assembly, guardrails, and tracing.
• Design multi-agent and autonomous agent systems, including agent-to-agent interfaces.
• Develop evaluation pipelines and production metrics for LLM and data quality.
• Harden LLM integrations in production with fallbacks, rate limiting, caching, cost tracking, and observability.
• Set up MLOps practices: CI/CD for ML components, versioning of prompts, models, and datasets, safe rollouts.
• Work closely with ML and backend engineers to turn prototypes into reliable production services.
• Define standards, processes, and tooling for AI and data practices across the team.
• Ship code frequently and iterate based on feedback while meeting strict security and uptime requirements.

Skills

Python backend

LLMs in production

MLOps

Containers

Cloud platforms

APIs

Education

CS degree

Tools

CI/CD tooling

Job description

Remote Crew is seeking a Senior AI Engineer to own data pipelines, context systems, and multi-agent infrastructure powering real-time identity verification for banks and fintechs. You’ll productionize AI features and help set engineering standards across the team.

The role focuses on building robust ML-backed backend services, integrating LLMs, and driving MLOps practices with a strong emphasis on security and reliability.