Senior Full Stack Engineer

Nada Holdings, Inc.; Canada; On-site; CAD 130,000 - 160,000; Full time

Job summary

A technology-driven company in Canada is seeking a Senior Full Stack Engineer to build and support core purchase and payment functionality. The ideal candidate has over 7 years of experience, proficiency in TypeScript, React, and Node.js, along with solid SQL skills. You will collaborate across systems, develop automated tests, and maintain user-facing applications. This full-time, permanent role offers a salary range of $130K to $160K per year, alongside health benefits and work-from-home flexibility.

Benefits

Health Spending Account

Disability insurance

Life insurance

Paid time off

Work-from-home flexibility

Qualifications

• 7+ years of full stack engineering experience developing production web systems.
• Strong proficiency in TypeScript, React, and Node.js.
• Experience designing and integrating RESTful services.
• Solid SQL fundamentals with hands-on PostgreSQL experience.

Responsibilities

• Build and maintain user-facing purchase and payment flows in React and TypeScript.
• Develop backend capabilities in Node.js, including routing, controllers, API integration, and business logic.
• Write and maintain automated tests for both frontend and backend code.
• Design, optimize, and query PostgreSQL schemas and data models.

Skills

TypeScript

React

Node.js

SQL fundamentals

Kubernetes

Docker

AWS or GCP

Redis

DynamoDB

MongoDB

Job description

About Us!

We are a technology-driven team focused on delivering high-quality, high-scale commerce experiences for millions of players worldwide. Our work powers critical purchase and payment flows behind one of the largest gaming ecosystems, and we value engineers who take ownership, collaborate deeply, and care about reliability, security, and exceptional user experience. You’ll join a group that thrives on solving complex problems, shipping impactful features, and maintaining the systems that keep global transactions running smoothly.

About the Role!

We are seeking a Senior Full Stack Engineer to build and support core purchase and payment functionality across both frontend and backend systems. You will work across React + TypeScript applications and Node.js services that drive checkout, payment processing, admin tooling, and operational workflows. This role requires strong technical ownership, comfort with distributed systems, and the ability to deliver secure, reliable features in a fast-moving environment.

You Will:

Feature Development & System Ownership

• Build and maintain user-facing purchase and payment flows in React and TypeScript.

• Develop backend capabilities in Node.js, including routing, controllers, API integration, and business logic.

• Implement and support internal/admin features such as role-based access controls and operational tools.

• Integrate with downstream services including payment gateways, risk/fraud systems, identity, and compliance providers.

• Design, optimize, and query PostgreSQL schemas and data models.

Quality, Reliability & Collaboration

• Write and maintain automated tests for both frontend and backend code.

• Improve performance, observability, and resilience for high-traffic events.

• Participate in code reviews and contribute to engineering quality standards.

• Work closely with cross-functional partners to deliver secure, regression-free changes.

• Support deployment workflows in a Kubernetes-based environment and contribute to operational runbooks.

You Have:

Required Technical Expertise

• 7+ years of full stack engineering experience developing production web systems.

• Strong proficiency in TypeScript, React, and Node.js.

• Experience designing and integrating RESTful services.

• Solid SQL fundamentals with hands-on PostgreSQL experience.

• Familiarity with AWS or GCP, Docker, Kubernetes, and Helm.

• Experience with scalable system components such as SQS, Redis, DynamoDB, or MongoDB.

• Ability to read or modify adjacent services built in Java or Grails/Groovy.

• Strong communication skills and comfort operating in high-security, high-reliability environments.

Nice to Haves:

• Fluent in Mandarin, with strong verbal and written communication skills in English.

• Background in payments, checkout flows, or wallet integrations (e.g., Apple Pay).

• Experience with OAuth, token exchange, or SSO patterns.

• Familiarity with edge/web infrastructure tools such as Nginx or Lua.

• Exposure to monorepo workflows, build tooling improvements, or module federation.

• Experience with Go services and gRPC/event-driven architectures.

How to Apply:

Please submit your PDF resume and any relevant technical profiles (e.g., GitHub).

Note: Employment may require a background check.

Job Type:

Full-time, Permanent

Schedule:

Monday to Friday

Pay Range:

$130K to $160K per year

We Offer:

• Health Spending Account

• Disability insurance

• Life insurance

• Paid time off

• Work-from-home flexibility