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Get AI-powered advice on this job and more exclusive features. Full-Stack Developer Position: Senior Full-Stack JavaScript Developer Company: Carbonhound Location: Toronto ON (in person 4 days at Yonge/Wellesley, 1 day WFH) Apply through our website! Apply here. Please mention you saw this at GoodWork.ca . What is Carbonhound? We are a software platform that helps small businesses measure and reduce their impact on the climate. We believe that in order to stop the climate crisis, we need to enable every business to do their part. Our product helps reduce barriers for companies by making easy-to-use tools and providing access to affordable expertise to help them transition to their low-carbon future. We are the operating system for decarbonization (and one of the most promising startups in Canada according to FoundersBeta). Why Carbonhound? Values Led: We fiercely protect our values of integrity, Empathy and Empowerment and ensure that these values are true both inside the company and how we work with our clients. This alignment ensures that we limit the tension between ourselves and what our clients want. Impact: We are a small(but growing) team working on a huge and important problem with over 200 customers and millions of tons of emissions managed. Come work at a company where you can make a real impact on the most important issue of our generation. Amazing team: We have an incredible team of passionate, hilarious and intelligent people. Come build the culture of the business with us and help co-create the company you have always wanted to work at. Strong Backing: From Verdexus, to Starforge and Highline beta, we are backed by some of the smartest pre-seed investors in Canada. The Role Were looking for a Senior Full-stack JavaScript Developer to join our 8-person team in the fight against climate change who wants to make a meaningful difference with their work. This role involves wearing many hats - such as working across our system stack, contributing directly to design and product decisions, defining our culture, and making critical code decisions that will impact the codebase for years to come. This role involves working directly with our CTO and in partnership with our staff developer to deliver meaningful value to our customers and the climate, and grow the foundations of our technical operations and systems. 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. Our tech stack is modern JavaScript - functional React, node.js, TypeScript, PostgreSQL, Docker, GCP. As an early developer for our team, youll have the opportunity to contribute and learn across the entire stack. This is a hybrid role in downtown Toronto (Yonge and Wellesley) that expects 4 days a week in office with flexibility as needed - we all work from home every Friday. 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 Strong SQL - DB architecture, flexible patterns, performance focused 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 5+ years of professional experience in JavaScript fullstack development Comfortable working in functional React, node.js, TypeScript, and SQL Comfortable with Redis or other aggregation systems (Elasticsearch, Algoria, 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 React/JavaScript/TypeScript node.js/JavaScript/TypeScript PostgresSQL Redis Google Cloud Platform (GCP) Docker Our Tools Github, Figma, GDrive, Shortcut (ticket manager), Postman, Notion, Slack, Tableau, Cursor Apply through our website: Apply here. Please mention you saw this at GoodWork.ca . Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Engineering and Information Technology Referrals increase your chances of interviewing at GoodWork Environmental Jobs by 2x Get notified about new Full Stack Engineer jobs in Toronto, Ontario, Canada . Software Engineer, Backend (All Levels / All Teams) Software Engineer I, Entry Level (Fall 2024-Spring 2025) - Toronto Mississauga, Ontario, Canada CA$65,000.00-CA$80,000.00 4 weeks ago Frontend Software Engineer (Remote - Canada) Software Engineer, Full Stack (In-Person - Toronto) Were unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. #J-18808-Ljbffr