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Senior Software Engineer, Platform & Infrastructure

SpellbookRemote - OntarioEngineering
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Posted
24 Feb 2026
Status
Open · checked 7d ago

About this role

Spellbook seeks a remote Senior Software Engineer, Platform and Infrastructure based in Ontario to design foundational cloud systems and enhance developer velocity. This position suits a generalist software professional who thrives in a fast-paced startup environment and enjoys tackling complex backend and infrastructure challenges.

Role Overview

As a Senior Software Engineer focused on Platform and Infrastructure, the individual joins an expanding engineering group of twenty developers. The mandate centers on three primary pillars: establishing robust technology foundations, driving exceptional quality toward high service reliability, and boosting developer productivity. The professional operates across a diverse technical stack, removing bottlenecks to support rapid product scaling.

Key Responsibilities

Manage and optimize cloud infrastructure utilizing AWS, MongoDB, and infrastructure as code methodologies.
Build and maintain critical platform capabilities such as authentication, authorization, entitlements, and AI inference integrations.
Improve continuous integration and continuous deployment pipelines alongside advanced build tooling.
Oversee worker queue management with BullMQ and develop robust APIs using tRPC.
Enhance developer experience and introduce productivity metrics for the engineering group.
Implement comprehensive monitoring and observability measures through Datadog.
Optimize service performance and ensure high system reliability.

Requirements

Strong practical background managing cloud infrastructure, preferably within Amazon Web Services.
Direct experience utilizing infrastructure as code principles and continuous deployment systems.
Proficiency working with NoSQL databases, specifically MongoDB or comparable database technologies.
Demonstrated familiarity with monitoring, logging, and observability platforms.
Solid comprehension of security best practices, user authentication, and authorization models.
Extensive development experience building backend systems using Node.js and TypeScript.
A proven history of elevating developer productivity and refining operational workflows.
Availability to work remotely from the province of Ontario.

Nice to Have

Familiarity with modern JavaScript and TypeScript build tooling including Vite, esbuild, and swc.
Previous exposure to job queue systems like BullMQ.
Hands-on background utilizing type-safe API frameworks such as tRPC.
Prior employment history within rapidly expanding technology scale-ups or early-stage startups.

Skills and Tools

Cloud Infrastructure and AWS
Node.js and TypeScript
MongoDB and NoSQL databases
Infrastructure as Code and CI/CD pipelines
Datadog for Monitoring and Observability
BullMQ and tRPC

Salary and Benefits

Flexible work environment emphasizing autonomy, accountability, and outcome-based results.
Company-paid group benefits covering the employee and family, including dedicated funds for mental health support.
Generous paid time off policies alongside an annual company holiday closure.
Regular monthly paid meals and an annual wellness allowance to promote personal well-being.
Parental leave top-up programs and competitive stock option grants.

About the Company

Spellbook provides an advanced artificial intelligence copilot designed specifically for transactional lawyers, integrating directly into Microsoft Word to streamline contract review and negotiation. Thousands of legal teams and solo practitioners utilize the platform globally. Backed by prominent venture capital firms including Khosla Ventures and Thomson Reuters Ventures, the organization recently secured significant funding to expand its operations.

How to Apply

Interested candidates should visit the official company careers page to submit an application for this remote opportunity in Ontario.

Skills and tech stack

AWSNode.jsTypeScriptJavaScript

Questions candidates ask

Where is this job located?

This position is fully remote, but applicants must reside in Ontario.

What technologies will I work with?

The role utilizes AWS, Node.js, TypeScript, MongoDB, Datadog, BullMQ, tRPC, and infrastructure as code tools.

What are the main areas of focus for this role?

The focus areas include building technology foundations, maintaining world-class quality and service reliability, and enabling high development velocity.

What benefits are included?

Benefits include company-paid group health coverage with mental health support, stock options, wellness allowances, paid meals, parental leave top-ups, and flexible paid time off.

How do I apply for the position?

Candidates should apply directly through the official Spellbook careers page.

Ready to apply?

The application is on the official Spellbook careers page.

Apply on company site