Senior Backend Developer

You will work closely with Product, Architecture, and cross-functional engineering teams to plan and deliver new features, lead development efforts, and ensure seamless integration across internal and external systems. This includes buildingrobust APIs, event-driven services, and third-party integrations, while also contributing to emergingAI-powered capabilities within our platforms.

The ideal candidate combines strong backend and frontend engineering skills with experience indistributed systems, integrations, and scalable architectures. JavaScript, TypeScript, Node.js, and GraphQL remain core requirements for this role.

What You'll Do

• Design and development ofscalable, service-based architectures (front-end and back-end), while remaining hands-on in coding and delivery

• Architect and implementsystem integrations across internal services and third-party platforms (REST, GraphQL, event streams, webhooks, ETL pipelines)

• Collaborate with Product to translate business requirements intotechnical solutions, defining scope, complexity, and dependencies

• Drive development across teams for services built inNode.js, TypeScript, JavaScript, and Python

• Design and maintainAPI contracts, data models, and integration patterns to ensure consistency and reliability across systems

• Build and optimizesecure, high-performance, and highly available systems

• Contribute toAI-enabled features and workflows, including integration of ML models, LLM APIs, or intelligent automation pipelines

• Partner with architects to definesystem design, integration strategies, and reusable frameworks

• Produce clear technical documentation (architecture diagrams, data flows, API specs, integration patterns)

• Establish and enforcebest practices in code quality, testing, and deployment

• Lead code reviews, approve merges, and mentor engineers across teams

• Troubleshoot complex production issues and drive resolution across distributed systems

• Oversee theend-to-end lifecycle of feature development—from design through deployment and monitoring

What You Bring

• • 5+ years of experience buildingscalable, production-grade software systems across front-end and back-end

  • Bachelor’s degree in Computer Science or a related field

  • Strong expertise inJavaScript and TypeScript

  • Proven experience withNode.js and GraphQL (required)

  • Deep experience building and consumingRESTful APIs and distributed services

  • Strong proficiency with tools and technologies such asPython, Docker, Git, SQL, and cloud-native architectures

  • Hands-on experience withGCP orAWS services (e.g., S3, CloudFront, EC2, RDS, Lambda, Batch)

  • Experience designing and implementingsystem integrations (microservices, third-party APIs, event-driven architectures, messaging systems like Kafka/SQS)

  • Ability to lead and deliverlarge, complex technical initiatives

  • Strong understanding ofsoftware design patterns, system architecture, and data flow design

  • Excellent communication skills, with the ability to articulate complex technical concepts clearly

  • Experience working inAgile/Kanban environments and a strong understanding of the SDLC

  • Adaptability and a proactive mindset in fast-paced, evolving environments

Nice to Have

• Experience working on or buildingtax, fintech, or compliance-related products (e.g., tax calculation engines, filing systems, regulatory platforms)

• Exposure toAI/ML engineering, including integrating LLM APIs, building data pipelines for ML workflows, or deploying AI-driven features

• Experience withdata platforms, data pipelines, or analytics systems

• Familiarity withevent-driven architectures and real-time data processing

• Experience designingmulti-tenant or enterprise-grade SaaS platforms

• Background inintegration-heavy environments (e.g., ERP, financial systems, external data providers)

Salary Range

• $100,000 - $140,000 (CAD)