Senior Full-Stack JavaScript Developer

Carbonhound; Toronto; On-site; CAD 80,000 - 110,000; Full time

Job summary

A climate-driven software firm in Toronto is seeking a Mid-Senior Level Developer skilled in Node.js, TypeScript, and React. The ideal candidate will build end-to-end features, mentor junior developers, and thrive in a collaborative startup environment with a focus on solving climate change challenges. Opportunities for personal growth and high autonomy are key offerings of this role.

Qualifications

• Expert-level proficiency in Node.js and TypeScript.
• Advanced knowledge of React, including hooks and context.
• Strong testing skills in unit and integration testing.

Responsibilities

• Build end-to-end features and own the full development lifecycle.
• Mentor junior developers and maintain high standards.
• Collaborate on technical solutions for business requirements.

Skills

Node.js

TypeScript

React

Problem-solving

Collaboration

Tools

Docker

Redis

Git

Job description

The Role

Our dream candidate is a lifelong learner who thrives with autonomy, ownership of their own work, a supportive team environment, and values their own growth. Opinions required! At Carbonhound, our core values are empathy, integrity, and empowerment - these values embody our commitments to our customers and to each other. Come ready with a passion to work on solutions that address climate change head-on.

Responsibilities

• Build end-to-end features from database design to user interface, owning the full development lifecycle
• Expert-level Node.js- async patterns, performance optimization, security best practices
• Advanced TypeScript- complex type systems, generics, and large codebase maintenance
• Senior React experience- hooks, context, performance optimization, testing patterns
• Testing proficiency - unit, integration, and e2e testing strategies
• Collaborate directly with team to translate business requirements into technical solutions
• Wear multiple hats - from DevOps to API design to frontend optimization
• Bug fixes and requests as needed
• Mentor junior developers and conduct code reviews to maintain high engineering standards
• Contribute actively to product ideas, improvements
• Raise the bar on system quality and developer experience

You're a good fit if you

• Are passionate about implementing and promoting high-quality code and design patterns
• Thrive on devising creative solutions to problems
• Champion the customer experience and creating real impact
• Value collaborative teamwork and clear communication
• Keep up to date with technology industry trends, best practices, and exciting opportunities - and share them with the team
• Thrive in a startup environment with high autonomy and decision-making, and equally high accountability
• Excited to use tools like cursor to help in building new features
• Are motivated to apply your skills to combat climate change

Preferred Skills

• Comfortable working in functional React, Node.js, TypeScript, and SQL
• Comfortable with Redis or other aggregation systems (Elasticsearch, Algolia, etc.)
• Confident Git and Agile software development methodologies
• Familiar with asynchronous microservice architectures
• Able to translate Figma designs into code
• Experience solutioning and delivering projects from conception to production
• Ability to pick up context quickly and adapt to frequent changes (we are a startup!)
• Driven to solve problems and collaborate with teammates across the company
• Comfortable working on Mac

Nice to have

• Experience with design and / or product development
• Experience with react-query
• Experience creating services from scratch
• Experience with managing and architecting big data systems and fast-serve aggregates
• Experience with GCP (Google Cloud Platform) or other cloud provider platforms (AWS, Azure, etc.)
• Experience with analytics, KPIs, and data-driven decision making (e.g. Tableau, Segment)
• Education or experience with environmental sustainability and / or carbon accounting

Our Stack

• Redis
• Docker

Our Tools

• Github, Figma, GDrive, Shortcut (ticket manager), Postman, Notion, Slack, Tableau, Cursor

Employment details

• Seniority level: Mid-Senior level
• Employment type: Full-time
• Job function: Engineering and Information Technology
• Industries: Software Development