Founding Engineer at Appnigma AI

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Job Title

Founding Engineer (Platform)

Salary

Not Disclosed

Company Description

Appnigma AI is an early-stage, founder-led platform enabling ISVs and product teams to build complex Salesforce and HubSpot managed packages using production-grade AI agents.

Job Description

Join Appnigma AI as a Founding Engineer to lead our platform’s core architecture. You will own everything from AWS infrastructure and multi-tenant security to LLM agent runtimes. This is a high-autonomy role for a distributed systems expert who thrives in "founder-mode," shipping mission-critical code without the need for extensive ticket queues or rituals.

Location

Remote

Why this role is remarkable

• True founding influence: Work as a technical peer to the founders, owning major workstreams like self-serve shared infrastructure and encryption-at-rest design without needing a second opinion.
• Cutting-edge AI at scale: Ship production LLM agents using tool-use loops and sandboxed execution, moving beyond simple RAG demos into real agentic workflows using the Claude Agent SDK.
• High-stakes engineering: Tackle complex multi-tenant isolation and security challenges where protecting secrets between ISV tenants is a core engineering concern, not a hypothetical.

• Architect and maintain robust AWS infrastructure using Terraform, managing ECS Fargate, RDS, Secrets Manager, and KMS to ensure total tenant isolation.
• Develop and optimize the LLM agent runtime, implementing tool-use loops and sandboxed execution environments to power intelligent Salesforce and HubSpot integrations.
• Lead end-to-end feature delivery, spanning from complex backend OAuth2/webhook integrations to shipping frontend React features that enable a seamless developer experience.

• At least 5 years of production TypeScript/Node experience in distributed systems, with deep knowledge of idempotency, retries, and comparing queue workers like pg-boss versus SQS.
• Proven expertise in multi-tenant SaaS security, specifically managing secret isolation and encryption-at-rest in environments where cross-tenant data leaks are a zero-tolerance risk.
• Fluent in AWS and Terraform with a "founder-mode" mindset, capable of turning high-level plans into production code independently while writing concise, decision-shaped design documentation.

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