Senior Fullstack Engineer

Bree

. Own the full lifecycle of features, including discovery, technical design, implementation, testing, rollout, monitoring, and follow-up.

Posted 9/19/2026full-timeToronto • CanadaSenior💰 CA$170,000 - CA$230,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in full lifecycle feature development, including technical design, implementation, and testing, with a strong focus on TypeScript, Node.js, and serverless architecture. Proven ability to mentor engineers and collaborate across teams to deliver customer-facing products with architectural ownership.

Highest-signal resume keywords

Expert-Level TypeScriptNode.js Serverless ExperienceReact/React Native DevelopmentAI-Native Development ToolsPragmatic Testing with Jest

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

TypeScriptNode.jsReact NativeRESTGraphQLAWS LambdaAWS SQSJestRNTLDetox

Soft Skills

Strong Product JudgmentClear Communication

Tools & Technologies

Claude CodeCursorCodexPulumiTerraform

Industry Keywords

Customer-Facing ProductsFinancial ProductsPayment SystemsRegulated SoftwareInfrastructure as Code

Tech Stack

Tools & technologies

AWSGraphQLJavaScriptJestNode.jsReactReact NativeTerraformTypeScript

About the role

Key responsibilities & impact

Own the full lifecycle of features, including discovery, technical design, implementation, testing, rollout, monitoring, and follow-up.
Work across the TypeScript and Node.js serverless backend, including Lambda, API Gateway, and SQS, as well as the React Native application.
Make architectural decisions about service boundaries, data ownership, and when to refactor versus extend existing systems.
Instrument shipped features and maintain stability without slowing releases.
Use Codex, Cursor, and Claude Code to accelerate development while maintaining correctness, testing, and quality.
Mentor engineers through technical design, code review, and cross-stack collaboration.
Collaborate directly with Product, Design, CX, Operations, and other engineers to understand problems, shape solutions, make technical decisions, and own outcomes after release.

Requirements

What you’ll need

Proven experience shipping customer-facing products end to end, with meaningful technical and architectural ownership.
An AI-native development approach using tools such as Claude Code and Cursor throughout planning, implementation, debugging, testing, and review, while validating and owning the result.
Expert-level TypeScript.
Fluency in Node, React/React Native, REST/GraphQL.
Real AWS serverless experience with Lambda and SQS, or equivalent event-driven systems.
Track record refactoring or modernizing existing systems, not just greenfield.
Pragmatic testing with Jest, RNTL, and Detox wired into CI.
Strong product judgment and clear, even-keeled communication.
Nice to have: experience building financial products, payment systems, or other regulated software.
Nice to have: Infrastructure as Code experience with Pulumi or Terraform.
Nice to have: mobile release experience, including TestFlight, Google Play, or over-the-air updates.

Benefits

Comp & perks

Comprehensive health, dental, and vision benefits plan
$1,500 annual learning & home-office stipend
$1,000 annual wellness stipend
Monthly Lunch Stipend
Commuter Benefits
Paid Parental leave
20 annual PTO days + unlimited sick days
Quarterly Team Gatherings
In Office Amenities
Bonus offered