Senior Full Stack Software Engineer

We are TRADER, a Canadian leader in digital automotive solutions. Our flagship brands — AutoTrader.ca, AutoSync, Dealertrack Canada and CMS — help Canadians buy, sell, and finance vehicles with confidence. As part of AutoScout24 group, Europe’s largest online car marketplace, we’re shaping the future of automotive retail in Canada and beyond. Learn more at tradercorporation.com. This role will be within the AutoSync team. AutoSync supports over 3,500 dealerships nationwide, delivering cutting-edge software tools to simplify operations, boost marketing, and drive sales. Full Stack Software Engineer Modern Platform Engineering & AI-First Development We are looking for a Senior Full Stack Software Engineer to join our organization and help build and modernize large-scale digital platforms and customer-facing applications. This is an opportunity to work on complex modernization initiatives where modern web technologies, cloud-native architectures, and Agentic AI-powered engineering practices are reshaping how software is designed, built, tested, deployed, and operated. You will be part of a high-performing Agile team delivering scalable solutions while leveraging AI throughout the entire Software Development Lifecycle (SDLC). What You'll Be Working On Designing, building, and modernizing large-scale web applications and digital platformsDeveloping scalable frontend and backend solutions using modern full-stack technologiesBuilding and integrating APIs, services, and distributed systemsDelivering cloud-native solutions using AWS and modern platform engineering practicesImplementing observability, monitoring, reliability, and performance optimization strategiesLeveraging AI-assisted development workflows to accelerate delivery and improve qualityDriving engineering excellence through architecture, automation, and continuous improvement What To Expect Own solutions end-to-end with a "You Build It, You Run It" mindset, from architecture and development through deployment, monitoring, performance, reliability, and security.Work in an AI-first engineering environment that leverages Agentic AI for requirements analysis, design reviews, pair programming, code generation, testing, documentation, code reviews, and operational insights.Collaborate within cross-functional Agile teams, contribute to architecture discussions, share knowledge, mentor peers, and help drive engineering standards and continuous improvement. Must-Have Experience 5+ years building and operating scalable, highly available software systems in production environmentsStrong understanding of software architecture, distributed systems, design patterns, and clean code principlesExpert proficiency with Python/TypeScript, React, Next.js, Node.js, REST APIs, and modern full-stack development practicesExperience building high-performance web applications using SSR, component-based architectures, and modern frontend frameworksStrong experience with relational and NoSQL databases such as PostgreSQL, MySQL, MongoDB, and RedisExperience designing and integrating APIs, microservices, and event-driven systemsHands-on experience with AWS, Docker, Terraform, CI/CD pipelines, and modern cloud-native development practicesExperience with observability and production operations using tools such as Datadog, New Relic, logging, monitoring, tracing, and incident troubleshootingStrong testing mindset with experience in automated testing, Playwright, unit, integration, API, and end-to-end testingExperience working with Git, GitHub Actions, and modern software delivery workflowsStrong ownership mindset with a passion for quality, reliability, performance, and operational excellenceProven experience using AI-assisted development tools such as GitHub Copilot, ChatGPT, Cursor, Claude, or similar platforms to improve engineering productivityExperience leveraging AI throughout the SDLC for code generation, testing, debugging, documentation, code reviews, and technical analysisFamiliarity with modern AI frameworks and tooling such as Vercel AI SDK, LangChain, LangGraph, OpenAI SDKs, Anthropic SDKs, MCP (Model Context Protocol), or agent-based development frameworksPassion for emerging AI engineering practices including Agentic AI workflows, AI-powered SDLC automation, multi-agent systems, and intelligent developer tooling What Success Looks Like - Successful engineers on this team: Deliver high-quality software at scaleLeverage AI effectively throughout the SDLCContribute to architecture and platform evolutionContinuously improve engineering practicesHelp accelerate the organization's transition toward AI-native software developmentBuild reliable, scalable, and maintainable solutions that create measurable business impact What's In It For You? We understand that there is life at work and life outside of work. Here are a few benefits we all benefit from that support us to be our creative best. Benefits from Day 1 Gym discounts Employee and Family Assistance program Virtual wellness events Conferences & training budget Regular internal training programs Financial planning with 3% matching Pension Competitive salary Annual bonus structure Compensation Our ranges reflect the expected compensation at the time of posting. The final offer may vary and can be higher based on relevant skills, experience, location, and market conditions. Based on the role, the total rewards package may also include benefits, bonus, and other employee offerings. The base salary range for this position is: $100,000 CAD - $120,000 CAD Use of Artificial Intelligence in Hiring: We use artificial intelligence (“AI”) in our hiring process, including to screen, assess, or select applicants for this position. Vacancy Status: This job posting is for an existing vacancy.