Frontier AI Engineer: Multi-Agent Systems & LLMs

Cognizant; Stockholms kommun; Hybrid; SEK 900,000 - 1,500,000; Full time

Benefits offered by this job

Hybrid work

Career development

Competitive compensation

Wellbeing programs

Job summary

Cognizant is seeking a Frontier Engineer in Sweden to join a lean, high-impact pod that designs, deploys, and continuously improves AI-native systems for leading organizations.

You will build multi-agent AI workflows, craft prompts, and deploy LLMs with guardrails and observability. The role emphasizes hybrid work, with three days per week in Cognizant offices across Sweden and strong collaboration with clients.

Qualifications

• 3–10 years of technical delivery experience with strong AI-tool fluency across the full stack.
• Hands-on experience with agentic coding and multi-agent orchestration using frameworks such as LangChain, AutoGen or LangGraph.
• Strong prompt and intent engineering skills, with the ability to validate AI-generated code for quality and correctness.
• Experience designing RAG pipelines and managing vector databases to ground and improve agent accuracy.
• LLMOps and model lifecycle management experience, including guardrail implementation, AIOps observability and CI/CD for AI systems.

Responsibilities

• Build and orchestrate multi-agent AI systems, integrating agent outputs into production environments that solve real business problems.
• Design intent-driven prompts and workflows for AI coding agents, applying human judgment to validate quality, safety and accuracy.
• Create scalable RAG architectures, vector stores and knowledge systems that enable trustworthy and context-aware AI experiences.
• Deploy, monitor and optimize LLMs and AI agents in production, implementing responsible AI guardrails and observability practices.
• Build AI-embedded applications and workflows using enterprise AI platforms, automation tools and modern engineering practices.

Skills

AI tool fluency

Agentic coding

Multi-agent orchestration

Prompt engineering

RAG pipelines

Vector databases

LLMOps

CI/CD for AI

Guardrails observability

Full-stack AI delivery

Tools

LangChain

AutoGen

LangGraph

Job description

Cognizant is seeking a Frontier Engineer in Sweden to join a lean, high-impact pod that designs, deploys, and continuously improves AI-native systems for leading organizations.

You will build multi-agent AI workflows, craft prompts, and deploy LLMs with guardrails and observability. The role emphasizes hybrid work, with three days per week in Cognizant offices across Sweden and strong collaboration with clients.