[Remote] AI Platform Engineer- Virtual

Note: The job is a remote job and is open to candidates in USA. Alight Solutions helps clients build healthier and more financially secure workforces through benefits, wellbeing, and absence management solutions. The AI Platform Engineer will build and operate the engineering platform powering production AI assistants, including agent patterns, retrieval systems, evaluation platforms, deployment automation, observability, governance, and developer tooling.

Responsibilities

• The agent patterns, retrieval, and guardrails behind the agentic assistants that answer participant questions and carry out transactions on their behalf
• An MCP server that serves a skills registry to AI coding agents right in the IDE
• Reusable agent patterns in LangGraph: multi-agent orchestration, memory, tool-use safety, and guardrails
• An agent evaluation platform (DeepEval, Ragas) with quality gates that block a bad deployment in CI/CD
• Document ingestion and retrieval pipelines: chunking, embedding, vector search, reranking, and citations
• CI/CD and deployment automation for AI agents on AWS (ECS, Fargate, Agent Core)
• AI-enabled devcontainers with tooling, validation, and testing built in
• OpenTelemetry instrumentation, dashboards, and LLM cost and token tracking for production workloads
• Governance controls turned into pipeline checks, with evidence collected automatically
• Semantic caching, rate limiting, and graceful degradation for agent workloads under load
• Reference implementations, SDK and CLI tooling, and the docs other engineers build on

Skills

• * Python. proficiency (3.10+). This is the primary language across the team
• * AWS. Working knowledge of core services (IAM, ECS/Fargate, networking) and comfort in cloud-native environments
• * Software engineering discipline. Version control (Git/GitHub), code review, testing, documentation, and clean code
• * Security awareness. You build things that handle sensitive data, and you think about secrets, permissions, and data protection by default
• * AI agent development. LangGraph or similar, multi-agent orchestration, memory, tool use, guardrails, prompt and workflow design
• * Data and retrieval engineering. Chunking, embeddings and vector search, RAG, hybrid search, reranking, retrieval evaluation
• * Quality and evaluation. Agent eval frameworks (DeepEval, Ragas), CI/CD quality gates, groundedness and safety metrics, test automation for AI systems
• * Platform and infrastructure. CI/CD, Terraform, container orchestration on AWS (ECS, Fargate), secrets and IAM, progressive deployment
• * Observability and operations. OpenTelemetry tracing, dashboards and alerting, LLM cost and token tracking, feedback loops
• * Developer experience. MCP servers, devcontainers, CLI and SDK tooling, prompt libraries, the docs and reference implementations others build on
• Applicants for employment in the country in which they are applying (Employing Country) must have work authorization that does not, now or in the future, require sponsorship of a visa for employment authorization in the Employing Country and with Alight

Benefits

• Health, dental and vision coverages starting Day One.
• Wellbeing programs.
• Retirement plans with contribution matching.
• Generous time off.
• Parental leave.
• Continuing education.
• Career growth opportunities.
• Flexible working arrangements wherever possible.
• Continuing education & training.

Company Overview