Full Stack Software Engineer II

HRB; Toronto; On-site; CAD 80,000 - 100,000; Full time

Job summary

A technology company in Toronto is seeking a Software Engineer II to enhance its payment platform. You will work with a high-trust engineering team to build core user experiences using Next.js, TypeScript, and Node.js while integrating payment APIs. Ideal candidates have over 3 years in full-stack development and are comfortable in fast-paced environments. The company offers growth opportunities and a collaborative culture.

Benefits

Growth opportunities

Collaborative culture

Meaningful impact

Qualifications

• Deep proficiency in React (Next.js), TypeScript, JavaScript, and Node.js.
• Proven track record designing and maintaining reliable APIs and backend systems.
• Hands-on experience with Firestore, PostgreSQL, and cloud platforms.

Responsibilities

• Build, maintain, and improve core user experiences using Next.js, TypeScript, and Tailwind CSS.
• Design and optimize APIs and backend services in Node and deployed on Google Cloud Platform.
• Integrate with third-party payment providers and financial APIs.

Skills

React (Next.js)

TypeScript

Node.js

JavaScript

Firestore

PostgreSQL

Education

3+ years of professional experience as a full-stack developer

Tools

Google Cloud Platform

Job description

Overview

Software Engineer II We areseeking a Software Engineer II to join our client's core team and help scale the platform. The engineer will own key features across web and mobile, integrate with payment APIs, and ensure systems remain reliable and performant. This role involves close collaboration with the CTO and a high-trust engineering team to shape a best-in-class payments experience.

What you’ll do

• Build, maintain, and improve core user experiences using Next.js, TypeScript, and Tailwind CSS

• Design and optimize APIs and backend services in Node and deployed on Google Cloud Platform

• Manage data at scale with Firestore for real-time needs and PostgreSQL for structured storage

• Integrate with third-party payment providers and financial APIs to enable seamless, secure bill payments

• Own projects end-to-end, from technical scoping through deployment and monitoring

• Collaborate cross-functionally with product, design, and other stakeholders to ship fast and iterate quickly

What you’ll bring

• 3+ years of professional experience as a full-stack developer

• Deep proficiency in React (Next.js), TypeScript, JavaScript, and Node.js

• Proven track record designing and maintaining reliable APIs and backend systems

• Hands-on experience with Firestore, PostgreSQL, and cloud platforms (GCP preferred)

• Strong sense of ownership and comfort working in a fast-paced startup environment

• Excellent communication skills, able to work with both technical and non-technical collaborators

Nice-to-haves

• Experience with financial APIs, payments integrations, or PCI-compliant systems

• Exposure to mobile development (React Native or similar)

• Familiarity with CI/CD pipelines, open-source contributions, or greenfield product work

• Prior experience at early-stage startups

Why you’ll love working there

• Meaningful impact: your work directly shapes the product roadmap and payment experience

• Collaborative culture: join a lean, high-trust team where your voice is heard

• Growth opportunities: learn new technologies and advance your career as the company scales