Senior Agentic Systems Engineer

Join Our Team as Senior Agentic Systems Engineer

At Hyperion360, we believe in empowering our engineers to shape the future of technology from the comfort of their own homes. We are a premier software outsourcing company, partnering with some of the world’s most successful businesses to build and manage dedicated, remote teams of top-tier software engineers and other technical talent.

We are looking for a talented Senior Agentic Systems Engineer to join our global team.

About This Role

a backend ownership role with meaningful architectural scope

Job Description

About the Company

Our client is building an AI-powered marketing SaaS for law firms and professional services teams, automating content generation, research, and multichannel publishing in a domain where quality, accuracy, and compliance matter. The product sits at the intersection of agentic AI systems, workflow automation, and legal-content governance, with a growing platform that now needs stronger backend foundations for reliability, tenant isolation, and operational visibility.

About the Role

This is a backend ownership role with meaningful architectural scope. You’ll lead the evolution from a fragmented ECS/N8N setup to a cleaner Next.js monolith with native async workers, while designing the AI pipelines, job systems, and multi-tenant data model that support the product end to end. It’s a strong fit for an engineer who has built production AI workflows, cares about observability and failure handling, and can translate complex requirements—like legal-content compliance, publishing reliability, and billing accuracy—into durable systems.

What You’ll Build

  • Migrate a Node.js/Express ECS backend into a Next.js monolith with API routes
  • Replace N8N with native BullMQ async workers for all content generation pipelines
  • Implement AI observability (Langfuse or LangSmith) across Claude, Perplexity, Gemini, and DALL-E call sites
  • Design and enforce Supabase RLS policies for strict tenant isolation
  • Build dead-letter queues, retry strategies, and alerting for async AI job failures
  • Implement Stripe Checkout, tier gating, webhooks, and customer portal end-to-end
  • Architect the compliance layer: CourtListener API integration, bar-rule checks by state, audit trail per published piece
  • Add per-client token cost tracking across all AI providers
  • Instrument WordPress REST API publishing with retry logic and per-client health monitoring

Required Experience

  • 5+ years full-stack engineering; 2+ years building multi-tenant SaaS
  •  Next.js (App Router, API routes, server components)
  • TypeScript, Node.js, PostgreSQL / Supabase - BullMQ or equivalent async job queue architecture in production
  • Supabase RLS: designed and enforced tenant isolation, not just read the docs
  • Agentic AI systems: prompt chaining, fallback logic, output validation, non-deterministic testing
  • AI observability tooling (Langfuse, LangSmith, or Helicone)
  • Stripe billing end-to-end: Checkout, webhooks, customer portal, metered billing
  • OAuth integrations (Google, LinkedIn) - AWS (EC2, S3, ECS familiarity)

Nice to Have

  • Experience with Claude API tool use / extended thinking
  • Compliance or legal tech background - Prisma ORM

Not a Fit If

  • You treat AI API calls as just another fetch request
  • You’ve only built single-tenant apps
  • Observability and evals aren’t part of your default workflow

Engagement: Full-time contract, remote

Why Choose Hyperion360?

  • Remote-First Culture: Work from anywhere with flexible hours
  • Top-Tier Clients: Partner with Fortune 500 companies and top startups
  • Professional Growth: Continuous learning and development opportunities
  • Competitive Compensation: Market-leading salaries and benefits
  • Global Team: Collaborate with talented professionals worldwide

Ready to take your career to the next level? Apply today and become part of Hyperion360’s elite team!