Senior Software Engineer – AI

Full-stack EngineerSoftware EngineerFull TimeRemoteSeniorTeam 1,001-5,000Since 2021H1B SponsorCompany SiteLinkedIn

Location

Canada

Posted

15 days ago

Salary

0

Seniority

Senior

Job Description

Senior Software Engineer – AI

Newfold Digital

• Design & scale async REST/WebSocket APIs with Python 3.11+ + FastAPI • Implement multi-agent workflows with Semantic Kernel • Integrate LLM providers behind a provider-agnostic layer for A/B and cost-aware routing • Deliver Retrieval-Augmented Generation with vector stores • Expose tool-using agents via OpenAI Assistants for data-analysis / file-manipulation tasks • Evolve schemas with SQLModel / SQLAlchemy 2 & Alembic; tune Postgres for high concurrency async access • Maintain robust CI/CD that lint, type-check, test, package, and deploy • Instrument services with structlog JSON logs, OpenTelemetry traces, and cost/latency metrics • Champion AI-assisted development and share pragmatic problem-solving practices with the team

Job Requirements

  • 5 + yrs building production APIs in Python
  • 2 + yrs with FastAPI (or similar async stack)
  • Deep knowledge of async I/O, Pydantic v2, DI, and observability
  • Hands-on with Semantic Kernel or comparable agent frameworks
  • Practical RAG implementations using Azure AI Search, pgvector, or Chroma
  • Strong Postgres skills, including SQLModel/SQLAlchemy 2 and Alembic migrations
  • Proven integrations or Side Projects with LLM APIs (OpenAI, Gemini) and structured-output design
  • Dependency management via Poetry and virtual-env isolation
  • End-to-end CI/CD ownership (build → scan → test → deploy)
  • Excellent analytical and problem-solving ability
  • Remote work readiness with daily overlap of at least 09:00 – 13:00 EST
  • Nice to have: Event/message queues (RabbitMQ, Azure Service Bus, Kafka)
  • Nice to have: Observability stacks (Grafana, LangFuse) for LLM cost governance

Benefits

  • Flexible work arrangements

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