javascript

Own technical direction and architecture evolution of a live, revenue-generating platform Scale throughput and reliability while customers onboard, including zero-downtime changes to running systems Harden the platform: tenant isolation, rate limiting, security, data integrity Establish observability, SLOs, and incident practices as the customer base...

Audit and remediate existing stateful scaling logic. Implement graceful shutdown protocols and dirty-cache synchronization to prevent data loss during scaling events. Take ownership of partially implemented systems and complete them by connecting backend logic to frontend RPC calls. Decouple database versioning and configuration from the codebase. ...

LDML’s DX Studio is hiring a Front-End Developer on a 18‑month parental leave contract in Downtown Toronto. You’ll join a collaborative team building reliable, engaging web experiences using JavaScript and React. You’ll work with designers, PMs, and other developers across the full SDLC, ensuring accessibility and high design quality. You’ll...

A technology company is seeking a Front End Developer in Toronto to work 4 days in the office. The ideal candidate should have proficiency in Angular (preferably Angular 8), strong knowledge of HTML5, CSS3, and JavaScript/TypeScript, and experience with responsive design frameworks. Skills in RESTful APIs, Git, and SQL Server are also desirable. This...

A leading technology firm is seeking a Senior Application Consultant to enhance marketing automation for global brands. You will bridge technology and marketing, ensuring seamless product delivery and successful tool adoption. This role requires a deep understanding of marketing operations, customer journeys, and strong technical skills in JavaScript. The...

Become a key player with a partner company as a Remote Senior Software Development Engineer in Canada. Focus on crafting impactful search experiences for millions of users worldwide.In this fully remote role, you'll play a vital part of a fast-moving team dedicated to building effective web applications. With over 7 years of experience required, you'll...

Aviva Canada is seeking a Senior Pricing Developer on the TIMR team to modernize actuarial tooling. You will own UI design and implementation, using R Shiny, JavaScript, HTML and CSS to deliver maintainable interfaces.You’ll work with actuaries and stakeholders to shape practical, scalable solutions, respecting established software engineering practices....

2K is seeking a Lead Developer focused on Tools in a Montreal area role. You will lead engineers across data systems, pipelines, DCC and web tools, driving AI-enabled solutions to reduce bottlenecks and improve workflows.You will partner with Directors and Product Managers to plan, estimate and deliver complex initiatives. Ideal candidates bring extensive...

Partner Company in Canada seeks a Ruby Script Developer to build and maintain web apps using Ruby on Rails, Vue.js, and SASS. You’ll collaborate with product managers and cross-functional teams to translate business requirements into reliable technical solutions.This role combines backend development with frontend work, giving you exposure to technologies...

YO AI Labs is seeking a Software Engineer for a contract role focused on training and evaluating next-generation AI systems. The job suits developers who can reason through unfamiliar codebases, explain engineering decisions clearly, and solve practical backend, full-stack, or systems problems.Required: 3+ years of hands-on software engineering experience...

Supership in Toronto, ON is seeking a Software Developer to join our growing tech team. You will design, develop, and maintain web applications powering our logistics operations and enhance the customer experience.Ideal candidates have 3–5 years in full-stack development, strong knowledge of JavaScript/TypeScript, Node.js, and RESTful APIs, plus experience...

A technology staffing company is seeking a skilled UI Developer specializing in React to join their hybrid team in Toronto. You will be responsible for creating robust user interfaces using React.js and modern JavaScript, with a focus on frontend performance and optimizing user experiences. Ideal candidates will have hands-on experience with React Hooks,...

A technology staffing company is seeking a skilled UI Developer specializing in React to join their hybrid team in Toronto. You will be responsible for creating robust user interfaces using React.js and modern JavaScript, with a focus on frontend performance and optimizing user experiences. Ideal candidates will have hands-on experience with React Hooks,...

United States Digital Space LLC seeks a highly skilled WordPress developer for a part-time role. Primary work is WordPress and WPML (~80%), with 20% across Next.js, Ruby on Rails, and Express/Node.js projects. Maintain several WordPress sites in maintenance mode and contribute to modern JavaScript and Ruby projects.The position is client-facing, so excellent...

A leading furniture technology company is seeking a Senior Software Engineer (Full Stack + Data) in Vancouver, British Columbia. The role involves designing, developing, and maintaining scalable web and data applications, with responsibilities spanning full-stack application development, data engineering, and cloud infrastructure management. Candidates...

A leading incident management platform based in Toronto is seeking an experienced engineer to shape product development from end-to-end. This role requires over 5 years in Ruby on Rails and JavaScript, with an emphasis on delivering outstanding user experiences. Ideal candidates thrive in a fast-paced environment, demonstrating strong collaboration and...

Ontario Teachers' Pension Plan's Capital Markets Investment Analytics (CMIA) team in Toronto is seeking an 8-month winter interns to join January 2027 to August 2027. You will work on our proprietary investment strategy codebase, support automated trading and portfolio analytics, and collaborate with portfolio managers in a collaborative, performance-driven...

BrokerLink is seeking an AI Developer II to join our team in Canada. The role focuses on designing, building, testing, and deploying AI-powered applications and workflows using Generative AI, LLMs, RAG, and intelligent document processing. You will work closely with stakeholders to translate business needs into scalable, production-ready AI solutions. The...

Reality Solutions Ltd. is seeking a motivated Junior Software Developer to join our Hull-based development team. This role is ideal for those beginning their software development journey and eager to tackle business challenges with technology. You will grow your skills in a supportive environment while contributing to meaningful projects.Hybrid role with a...

A technology staffing company is seeking a skilled UI Developer specializing in React to join their hybrid team in Toronto. You will be responsible for creating robust user interfaces using React.js and modern JavaScript, with a focus on frontend performance and optimizing user experiences. Ideal candidates will have hands-on experience with React Hooks,...