CareerPlan

Senior Platform Software Engineer (AI Specialist)

TST Main Office (901 N. Stuart St) - Arlington, VAFull-time$140k2026-09-30 → 2026-11-10
HybridNo visa sponsorshipCitizens onlySecurity clearance required

Core

Architect and maintain the internal AI orchestration ecosystem, enabling full-stack developers to integrate agentic AI capabilities into their codebases.

Role type

Senior Platform Software Engineer (AI Specialist)

Builds

Internal AI orchestration layer, self-service developer tools, client libraries, and shared services for agentic AI.

Domain

AI Infrastructure / Agentic Orchestration / Platform Engineering

Deliverable

production ML models

Required skills

AI agent frameworks, agentic orchestration (LangGraph/LangChain/PydanticAI), prompt management, token optimization, full-stack application engineering, Infrastructure as Code, container orchestration

Preferred skills

Advanced prompt engineering, database migration patterns, automated testing guardrails

Technologies

LangGraph, LangChain, PydanticAI

Responsibilities

Design and maintain the AI orchestrator layer for LLM interactions and tool execution; Build shared utilities and standardized abstractions for feature teams; Optimize prompt engineering guardrails and embedding stores; Ensure platform components are version-controlled and independently hosted; Act as a technical consultant for architectural decisions across UI, API, and data layers.

Seniority

Senior, hands-on IC