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Enrolment Services Advisor
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Blanc Labs

Full Stack Software Engineer - AI Agents

Toronto, ON, M5E 1J8, Canada

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Job details

Experience: 2 to 5 years of professional software engineering experience, with production code you’ve shipped and supported
Posting language: English
Posted: Oct 27, 2026

Original job description

Blanc Labs is a premier partner for global enterprises, leading the way in digitization, automation, and the development of next-generation digital products and services. Our expertise in digital transformation powers businesses to accelerate service delivery, drive customer engagement, and foster growth.

Alongside our client work, a small product team at Blanc Labs is building our own AI agent platform: agents that hold real conversations with customers across voice, SMS, and chat. The platform is already live in production with enterprise clients, and we operate with the pace and ownership of a startup, backed by the stability of an established firm. You’ll take features from idea to production and see them used by real clients.

The problems are real and hard, from making voice conversations feel natural to keeping them reliable in real-world conditions.

We’re looking for a Software Engineer who wants to build across the whole stack (backend services, web interfaces, and the AI agents themselves) and gets energy from solving hard problems rather than already knowing every answer.

This is a hybrid role in downtown Toronto, with 2-3 days a week in the office.

What You’ll Be Doing

Build and ship features across the platform: backend services, APIs, and the Next.js interfaces our team and clients use
Develop agent capabilities, including prompt assembly, tool and function calling, streaming responses, and conversation state
Integrate real-time voice and messaging channels (telephony, SMS, web) alongside our technical lead
Design data models and migrations with care for consistency and safe change
Build background jobs and outbound processing with clear retry and failure handling
Instrument services with logging, metrics, and tracing, and debug issues end to end, from the interface to the live conversation
Bring ideas to the roadmap and prototype new agent capabilities

What You’ll Need To Be Successful

2 to 5 years of professional software engineering experience, with production code you’ve shipped and supported
Strong Python, including asynchronous programming (asyncio, FastAPI, or similar)
Experience with React and TypeScript
Comfort with relational databases (PostgreSQL), SQL, and migrations
Hands-on experience building with LLMs, professionally or through side projects
Working knowledge of Docker and a major cloud platform (Azure preferred)
A habit of figuring things out: reading the docs, testing hypotheses, and asking good questions

Nice to Have

Experience with Next.js
Real-time media or telephony (WebRTC, SIP, programmable voice or SMS APIs)
LLM evaluation or agent frameworks
Experience working within data residency or compliance requirements

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More about this job

Responsibilities

You will build and maintain full-stack features including backend services, APIs, and Next.js interfaces for an AI agent platform. Additionally, you will develop agent capabilities such as prompt assembly, tool calling, and real-time voice and messaging integrations.

Requirements

The role requires 2 to 5 years of professional software engineering experience with strong proficiency in Python, React, and TypeScript. Candidates should have hands-on experience building with LLMs and comfort working with relational databases and cloud platforms.

Skills

Python
Asynchronous programming
FastAPI
React
TypeScript
PostgreSQL
SQL
LLMs
Docker
Azure
Next.js
WebRTC
SIP
Prompt engineering
API development

Visa sponsorship

Not detected in the job text

Keywords

Full Stack
Software Engineer
AI Agents
Python
FastAPI
React
TypeScript
PostgreSQL
LLMs
Docker
Azure
Next.js
WebRTC
SIP
API
Generative AI
Backend
Frontend
Data modeling
Cloud computing
Prompt engineering
Telephony
SMS
Asynchronous programming
Software development

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