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Member of Technical Staff (Fullstack) (Toronto)

solsticeTorontoEngineering
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Salary
$155K–$230K
Job type
Full-time
Posted
3 Oct 2026
Status
Open · checked 7d ago

About this role

This founding full-stack engineering role suits an independent builder with strong backend and LLM experience who wants to establish the first engineering office for Solstice in Toronto, Canada. The position involves owning a complete product roadmap, designing APIs, and deploying production-grade artificial intelligence agents.

Role Overview

Solstice is hiring a Member of Technical Staff (Fullstack) for its new location in Toronto. As an early engineer in this office, the candidate will own a product area end-to-end, collaborate closely with co-founders Yiwen and Aris, and spend the first month working in person in New York with travel and accommodation covered. The position begins remotely with a WeWork stipend, transitioning to an on-site office setting in Toronto by the end of the year for a five-day workweek.

Key Responsibilities

Build and harden FastAPI services, designing clean interfaces for ingestion, retrieval, annotation, and compliance checks.
Implement a reliable background job platform using Celery and Redis to handle scheduling, retries, idempotency, backoff, and result stores.
Package LLM and RAG agents, such as LangGraph and LangChain, into production services.
Deploy applications to AWS while managing secrets, networking, autoscaling, and cost controls.
Build enterprise integrations with cloud platforms including Veeva Promomats, Adobe, and Figma.
Orchestrate file processing for PDFs and images, OCR, embedding pipelines, and metadata enrichment at scale using an S3-first design.
Model clean database schemas and access patterns for Postgres, utilize Redis for caching and rate-limiting, and integrate vector databases like Pinecone.
Contribute to the Next.js frontend as needed.

Requirements

Relevant experience building systems and deploying enterprise-grade products.
Strong proficiency in full-stack web development technologies including Python, FastAPI, Docker, and AWS.
Experience working with large language models such as GPT, Claude, and Gemini to create workflows, RAG pipelines, and agentic solutions.
Ability to make decisions and drive results independently.
Superb communication and collaboration skills with a willingness to provide and accept criticism.
Legal entitlement to work in Canada.

Skills and Tools

Python
FastAPI
Docker
AWS
Celery
Redis
Next.js
Postgres
Pinecone
LangChain
LangGraph
GPT, Claude, Gemini
Veeva Promomats, Adobe, Figma

Salary and Benefits

Salary range of CAD $155,000 to $230,000, calibrated to experience and seniority
Ground-floor equity
Supplemental health, dental, and vision coverage in addition to OHIP
RRSP matching
Unlimited paid time off
First month in New York with covered travel and accommodation
Professional growth stipend
WeWork stipend during the initial remote period

About the Company

Solstice is redefining how life sciences organizations commercialize therapeutics by building a commercial engine that allows pharmaceutical marketers to launch campaigns at high speeds. The company has partnered with over 50 pharmaceutical brands and top manufacturers, experimenting with LLMs and new frameworks at the frontiers of technology. Financial backing includes investors such as Transformation Capital, Twelve Below, Virtue, and the founders of Datavant, Commure, and Paradigm.

How to Apply

Visit the official company careers page to submit an application for this position.

Skills and tech stack

PythonFastAPIDockerAWSCeleryRedisNext.jsPostgresPineconeLangChainLangGraphGPTClaudeGeminiLLMLLMsRAG

Questions candidates ask

Where is this job located?

This role is based in Toronto. It begins remotely for the first few months with a WeWork stipend, and transitions to an on-site office in Toronto by the end of the year.

What is the salary range for this position?

The salary ranges from CAD $155,000 to $230,000, supplemented by ground-floor equity.

Does Solstice provide visa sponsorship for this role?

No, candidates must be legally entitled to work in Canada as work permits cannot be sponsored at this time.

Will I need to travel during the onboarding process?

Yes, the first month is spent working in person with the team in New York, with travel and accommodation fully covered.

What technology stack is used in this role?

The stack includes Python, FastAPI, Docker, AWS, Celery, Redis, Next.js, Postgres, Pinecone, and frameworks like LangChain and LangGraph for LLM deployment.

Ready to apply?

The application is on the official solstice careers page.

Apply on company site