Full Stack Engineer

Ampstek; Brampton; On-site; CAD 90,000 - 120,000; Full time

Job summary

Ampstek is seeking a frontend engineer in Brampton, Canada, to design and implement AI-native interfaces with streaming tokens, tool-use visualizations, and real-time feedback. The role emphasizes robust state handling for multi-turn conversations and agent workflows, plus secure API design and scalable microservices.

You will optimize performance for low-latency rendering, work with React/Vue on dashboards, and ensure accessibility and security across the stack.

Qualifications

• Expertise in modern frontend frameworks (React, Vue) and backend runtimes (Java, Python).
• Experience building chat interfaces or state-heavy dashboards.
• Strong understanding of web security and API design.

Responsibilities

• AI-Native Interfaces: Build responsive UIs supporting streaming tokens (SSE), agent tool-use visualization, and real-time reasoning feedback.
• API & Middle-Tier Development: Implement secure microservices that orchestrate requests across RAG, agents, and evaluation layers.
• State Management: Handle complex frontend state for multi-turn conversations, agent workflows, and partial-completion tasks.
• Performance Optimization: Ensure low-latency rendering and smooth UX across varied AI response times.

Skills

React

Vue

Java

Python

Chat interfaces

State-heavy dashboards

Web security

API design

Streaming UI patterns

SSE/WebSockets

Tools

Redux

Zustand

Vuex

OWASP

Job description

• AI-Native Interfaces: Build responsive UIs supporting streaming tokens (SSE), agent tool-use visualization, and real-time reasoning feedback.
• API & Middle-Tier Development: Implement secure microservices that orchestrate requests across RAG, agents, and evaluation layers.
• State Management: Handle complex frontend state for multi-turn conversations, agent workflows, and partial-completion tasks.
• Performance Optimization: Ensure low-latency rendering and smooth UX across varied AI response times.

Required Qualifications:

• Expertise in modern frontend frameworks (React, Vue) and backend runtimes (Java, Python).
• Experience building chat interfaces or state-heavy dashboards.
• Strong understanding of web security and API design.

Skillset Requirements:

• Frontend Engineering: React/Vue, component architecture, state management, and streaming UI patterns.
• AI-Native UX: Designing interfaces for streaming tokens, agent tool-use visualization, and multi-turn reasoning.
• Backend Microservices: Java/Python runtimes, secure routing, and API orchestration.
• State Management: Redux, Zustand, Vuex, or equivalent for long-running agent tasks.
• Web Security: OWASP, secure API design, auth flows, and safe AI request routing.
• Performance Optimization: Low‑latency rendering, concurrency handling, and streaming UI performance.
• Event‑Driven UI: SSE, WebSockets, and real‑time agent feedback loops.
• Integration with AI Backends: Handling varied response times, partial outputs, and agent state transitions.
• Accessibility & Design Systems: WCAG‑compliant, reusable component libraries for consistent