Senior / Staff Software Engineer

@ Connections Outsourcing

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Remote in Canada

$160k–$180k/yrRemoteFull-time7+ years experience

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SIGNALS

Overview

Connections Outsourcing is hiring a Senior / Staff Software Engineer, full-time, to lead platform architecture and hands-on full-stack development. The work covers React and Node.js/PHP systems, performance optimization, REST APIs, CI/CD, cloud hosting, and mentoring engineers. The posting requires 7+ years of full-stack experience and payment processing experience.

Pay:

$160,000–$180,000 a year

Responsibilities:

Lead platform architecture evolution and scalability
Maintain React frontend and Node.js/PHP backend
Enhance REST APIs for security and performance
Manage cloud hosting environments such as AWS or DigitalOcean
Mentor junior and mid-level engineers

Requirements summary:

7+ years of full-stack development experience
Expertise in React.js, Webpack, and Node.js
Experience building payment processing systems
Hands-on experience with SQL databases and caching systems
Ability to lead code reviews and define coding standards

Tools & skills

React Node.js PHP Webpack PostgreSQL MySQL Redis Memcached Docker PM2

Source and dates

Source type not verified · dover

Employer posting date: Not provided
First seen by our source: 2026-11-04
Source record updated: 2026-11-04

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

Seniority	Senior
Department	Software development
Experience	7+ years
Hours per week	40 (estimated)
Travel	air: none · ground: none
Work setting	Office, Home
Position	Mostly sitting
Physical demands	physical low · computer high
Languages	English

Summary and details written by AI from the posting; the employer’s posting is the authority.

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Connections Outsourcing

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Field	Value
Open jobs on Jobsy	3

Job description

Job Description

Lead the evolution of the platform's architecture, ensuring scalability and maintainability.
Maintain and modernize the React-based frontend and Node.js/PHP backend.
Own the design system and component library for reusability and accessibility.
Enhance REST APIs focusing on security, flexibility, and performance.
Optimize workflows, automation, and tooling for better developer experience (DX).
Implement performance improvements such as lazy loading, caching, and server-side rendering (SSR).
Improve database query performance and reduce backend bottlenecks.
Oversee build pipeline improvements including CI/CD integrations.
Manage cloud hosting environments such as AWS or DigitalOcean.
Drive unit, integration, and functional testing adoption (Jest, Mocha, etc.).
Optimize SEO strategies and implement A/B testing strategies.
Act as the last stop on code reviews, ensuring high code quality and best practices.
Mentor and support junior and mid-level engineers.
Be a hands-on contributor, doing heavy-duty coding as needed.

Job Requirements:

7+ years of experience in full-stack development with a focus on performance and scalability.
Expertise in React.js, Webpack, and Node.js.
Strong experience with modern PHP (or willingness to maintain/refactor legacy PHP code).
Deep knowledge of performance optimization techniques and web performance audits.
Experience building payment processing systems (not just integrating Stripe or similar services).
Experience working in eCommerce platforms and handling complex payment workflows.
Proficiency with build tools, automation, and CI/CD pipelines.
Hands-on experience with SQL databases (PostgreSQL, MySQL) and caching systems (Redis, Memcached).
Strong understanding of RESTful API design with secure, fine-grained access controls.
Familiarity with containerization (Docker), process management (PM2), and cloud environments.
Passion for creating exceptional user experiences with attention to detail.
Ability to lead code reviews, define coding standards, and support team growth.
Experience with infrastructure cost management and scaling in cloud-hosted environments, is a plus.