Agentic Fullstack Engineer — AI Pipelines & UI

Subsig; San Francisco (CA); Vor Ort; USD 150.000 - 190.000; Vollzeit

Benefits dieser Stelle

Learning budget

Performance bonus

Modern tooling

Flat hierarchy

Zusammenfassung

Subsig is hiring a Fullstack Engineer to design and deploy AI-powered agentic systems on a Next.js and Laravel stack. You will build APIs, interfaces, and agent pipelines powering our core platform, bridging automation with reliable product engineering.

You will work on SSR/SSG, tool integrations, and multi-step reasoning, collaborating with ops and product teams to ship robust, scalable solutions.

Qualifikationen

• 3+ years of full‑stack development experience.
• Experience with Next.js, React, and TypeScript in production.
• Proficiency with Laravel, PHP 8.x, and SQL databases.
• Familiarity with AI/agent patterns and LLM integrations.

Aufgaben

• Design and build agentic workflows using LLM APIs integrated into Laravel backend services.
• Develop full-stack features across Next.js frontend and Laravel backend.
• Architect orchestration logic for task routing, memory, and multi-step reasoning.
• Create RESTful APIs and webhooks for agent pipelines and frontends.
• Implement SSR/SSG and App Router patterns for optimal UX.
• Build operator dashboards to monitor and configure agents.
• Collaborate with teams to translate agent use cases into working systems.
• Write clean, well-tested code and participate in reviews.

Kenntnisse

Next.js & React

TypeScript

Tailwind CSS

Laravel

PHP 8.x

MySQL/PostgreSQL

Redis

REST APIs

CI/CD

Docker

AWS/GCP

Ausbildung

Bachelor's degree

Tools

Eloquent ORM

Git

LangChain

Pinecone

Jobbeschreibung

About the Role

We are looking for an Agentic Fullstack Engineer to design, build, and deploy AI-powered agentic systems on a modern Next.js and Laravel stack. You will bridge the gap between intelligent automation and reliable product engineering crafting the APIs, interfaces, and agent pipelines that power our core platform. This role is ideal for a developer who is deeply curious about AI agents and wants to build real, production-grade agentic workflows.

Key Responsibilities

• Design and build agentic workflows using LLM APIs (OpenAI, Anthropic, etc.) integrated into Laravel backend services
• Develop full-stack features across Next.js (frontend) and Laravel PHP (backend)
• Architect agent orchestration logic: task routing, tool-calling, memory management, and multi-step reasoning
• Build and maintain RESTful APIs and webhooks consumed by agent pipelines and frontend clients
• Implement SSR, SSG, and App Router patterns in Next.js for optimal UX and performance
• Create intuitive operator-facing dashboards to monitor, manage, and configure agents
• Integrate third-party tools and APIs into agentic workflows (CRMs, communication platforms, data sources)
• Write clean, well-tested code and participate in code reviews
• Collaborate closely with operations and product teams to translate agent use cases into working systems

Required Qualifications

Frontend (Next.js & React)

• 3+ years of professional full-stack development experience
• Proficiency in React and Next.js including App Router, server components, and TypeScript
• Comfortable with Tailwind CSS and building clean, functional UIs
• Experience consuming REST APIs and streaming responses in the frontend
• Strong experience with Laravel including Eloquent ORM, queues, jobs, and service containers
• Comfortable with PHP 8.x features and writing clean, maintainable backend code
• Familiarity with MySQL or PostgreSQL, including schema design and query optimisation
• Experience with Redis for caching and queuing

Agentic & AI

• Hands-on experience building with LLM APIs (OpenAI, Anthropic, or similar)
• Familiarity with agent patterns: tool-calling, function calling, multi-step reasoning, memory
• Experience with prompt engineering and building reliable, structured AI outputs
• Understanding of agentic frameworks (LangChain, LlamaIndex, CrewAI, or equivalent) is a plus

Tooling & Practices

• Solid Git workflow and experience with CI/CD pipelines
• Comfortable with Docker for local development
• Familiarity with cloud platforms: AWS, GCP, or DigitalOcean

Nice to Have

• Experience with Inertia.js for Laravel + React integration
• Prior work on multi-agent systems or autonomous pipelines
• Exposure to vector databases (Pinecone, Weaviate, pgvector)
• Experience with streaming UIs and real-time agent output rendering

What We Offer

• Competitive salary based on experience and location
• Performance-based bonus
• Annual learning & development budget (courses, conferences, books)
• Modern tooling and a team that values excellence and ownership
• Flat hierarchy, collaborative culture, and real impact on the product
• Growth path into senior and leadership roles

This is a full-time position. We begin with a 2-month paid trial to ensure mutual alignment candidates who demonstrate the right skills and mindset will transition seamlessly into the permanent role.

Education

Bachelor's degree in a relevant field or equivalent practical experience

A strong portfolio of shipped work or demonstrated results will be equally considered