Senior AI Engineer

permanent
Fully Remote

Only accepting applications from: United States

  • Own the design and evolution of core capabilities within internal AI agent platform to support high-impact business workflows and AI agents.
  • Define and improve deployment patterns, shared services, and orchestration approaches that enable complex agent use cases to run reliably.
  • Partner with business stakeholders to translate high-priority strategic goals into scalable AI agent solutions.
  • Work hands-on with builders to debug issues, answer technical questions, and unblock day-to-day development while also improving the underlying platform.
  • Investigate failing repositories, run code locally when needed, and fix infrastructure or environment issues at the root cause.
  • Build and maintain shared services—such as reusable modules, integration layers, logging patterns, and data access approaches—that multiple teams can leverage.
  • Drive decisions around observability, governance, permissions, reliability, and cost-aware usage to ensure AI transformation is sustainable and secure.
  • Help set technical direction for how new capabilities should be designed to create durable foundations rather than one-off solutions.
  • Collaborate across engineering and business functions to identify and shape new high-value opportunities for agent-led innovation.

Experience

  • 5+ years of hands-on experience in software engineering, platform engineering, solutions engineering, infrastructure engineering, or a similar technical role.
  • Strong ability to design and implement production-ready systems across APIs, services, integrations, and data flows.
  • Experience working with cloud environments and modern application deployment patterns.
  • Comfort troubleshooting complex technical issues across infrastructure, application logic, and third-party integrations.
  • Prior experience building internal platforms, shared services, developer tooling, or reusable technical foundations.
  • Strong understanding of system design, reliability, scalability, and security considerations.
  • Demonstrated ability to take ownership of ambiguous technical problems and drive them from design through implementation.
  • Experience defining technical patterns, processes, or standards that other builders rely on.
  • Practical experience working with AI-powered applications, agent architectures, LLM-based workflows, or adjacent systems.
  • Strong communication skills and the proven ability to work cross-functionally in a fast-moving environment.
  • Comfort with ambiguity and a strong builder mentality with a bias toward practical execution.

Salary and Perks

Pay range: $148K - $203K

  • Comprehensive Health & Wellness including a fully-covered High Deductible Health Plan (HDHP), telehealth services, and Calm subscription.
  • Access to LinkedIn Learning, professional development programs, and career growth opportunities.
  • Open PTO for work-life balance.
  • Generous 401(k) matching with immediate vesting, quarterly perks, and a four-week paid sabbatical with bonus after five years.

About ActiveCampaign

We help small teams power big businesses with intelligent marketing automation.

We help small teams power big businesses with intelligent marketing automation.

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