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Added 2 hours ago
P
Supply Chain Manager
Pontosense
Toronto, ON
- Full-time
Build the supply chain at a fast-growing senior care technology company shipping hardware to 24 countries.
Added 4 hours ago
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Production Operations Manager
BMO
Toronto, ON · SCC
- Full-time
The Senior Manager, Production Operations Transformation will lead the evolution of production support capabilities across CorpFinFCU and Engineering portfolios, driving the organization's…
Added 4 hours ago
B
Development Manager
BMO
Toronto, ON · FCP
- Full-time
Applies development expertise to front and back-end systems coding combined with project management experience with systems administration skills. Designs the strategy for continuous…
Added 4 hours ago
B
Development Manager
BMO
Toronto, ON · FCP
- Full-time
Demonstrated ability to apply development expertise in both front-end and back-end systems coding, combined with project management and systems administration skills.
Added 9 hours ago
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Quality Engineer - 6-month contract
OTIP (Ontario Teachers Insurance Plan)
Waterloo, ON
- Contract
Reporting to the Senior Manager, DevOps & System Integration, the Quality Engineer is responsible for creating, reviewing, executing, and documenting the tests necessary to ensure that…
Added 10 hours ago
CO
Principal Associate, Product Management
Capital One
Toronto, ON
- Full-time
Create easy digital solutions that help customers address fraud and easily get back to using their card.
Added 11 hours ago
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Supervisor, Business Accounting
Co-op
Saskatoon, SK
- Full-time
Lead a team of Senior Accountants, Accounting Technicians and Accounting clerks responsible for providing full cycle accounting services to local co-ops retails; this includes participating…
Added 12 hours ago
FC
Supervisor, Business Accounting
Federated Co-operatives Limited
Saskatoon, SK
- Full-time
Lead a team of Senior Accountants, Accounting Technicians and Accounting clerks responsible for providing full cycle accounting services to local co-ops retails; this includes participating…
Added 13 hours ago
P
Senior Software Engineer
Pebl
Remote, Canada
- $122,835 to $180,000 CAD / year
- Full-time
- Remote
This is a true full-stack role. You’ll own features end to end: the APIs, data models, and services behind our LLM-based product, and the conversational interface people actually use.…
Added 13 hours ago
GL
Senior Financial Analyst
goeasy Ltd.
Mississauga, ON
- Full-time
The Senior Financial Analyst is responsible for supporting the Company's accounting, financial reporting, analysis, budgeting, and forecasting activities. Reporting to the Senior Manager,…
Added 13 hours ago
GL
Senior Manager, Brand & Integrated Marketing
goeasy Ltd.
Mississauga, ON
- Full-time
The Senior Manager, Brand & Integrated Marketing will lead the evolution and activation of our brand strategy, ensuring our brands are distinctive, relevant, and consistently expressed…
Added 14 hours ago
T
Senior Product Manager (KYC - Fraud & Risk)
Trulioo
Remote, Canada
- Full-time
- Remote
We are looking for a highly driven, intellectually curious Senior Product Manager to lead Trulioo's KYC Fraud & Risk product line. This is a high-visibility individual contributor role at…
Added 14 hours ago
PH
Estimator & Senior Estimator, ICI Buildings - Permanent - 4299
Parker Huggett - A Division of LRO Staffing
Vaughan, ON
- Full-time
…pre-construction capacity at two levels, so they are adding one Senior Estimator and one Estimator. Both are additions. Neither is a…
Added 18 hours ago
C
Senior Project Manager | Commercial Interiors
Clearspace
Toronto, ON
- Full-time
This is a senior, hands-on leadership role. As a Senior Project Manager you are both a project leader and a people leader.
Added 1 day ago
SI
Registered Nurse
Shannex Incorporated
Halifax, NS
- Full-time
…healthcare sector, Shannex offers opportunities for growth, development and advancement. And at the end of every day, you will know you’ve made a measured difference in the lives of our…
Added 1 day ago
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Senior Product Manager, Fund Management
Purpose
Toronto, ON
- Full-time
…management business. This cross-functional team is accountable, end to end, for transforming how Purpose runs its investment fund operations – moving fund accounting, performance, trading…
Added 1 day ago
T
Elevated Support Senior Specialist
Teleperformance
Toronto, ON · TPCA Toronto
- $23.43 CAD / hour
- Full-time
As a Senior Specialist, Elevated Support, you will be on the front lines of the client's Community Support team, handling the most sensitive, urgent, and/or high-stakes cases for our valued…
Added 1 day ago
B
Senior Product Manager, Intelligence
Braze
Toronto, ON
- Part-time
We’re hiring a Senior Product Manager for Braze’s Intelligence team.
Added 1 day ago
TB
Senior Manager, Supply Chain Analytics
The Beer Store
Bolton, ON
- Full-time
We are currently searching for a Senior Manager, Supply Chain Analytics, reporting to the Senior Director, Supply Chain. This vacancy is a full-time, permanent opportunity. The Sr. Manager,…
Added 1 day ago
MU
Associate Director Operations and Systems
McGill University
Brown Student Serv.
- Full-time
Provide senior professional expertise and support to teams with diverse expertise, ensures high-quality staff recruitment and professional development standards. Participates in the hiring…
Added 1 day ago
GT
Access Governance Coordinator
Global Technical Talent, an Inc. 5000 Company
Toronto, ON
- Contract
The contractor will support the team's business-as-usual access governance activities, particularly the back-end coordination and execution of access certification and attestation…
Added 1 day ago
Senior Product Manager, Intelligence
Braze
Toronto, ON
We’re hiring a Senior Product Manager for Braze’s Intelligence team.
Added 1 day ago
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Senior Backend Developer
Off2Class
Toronto, ON · Greater Toronto Area, Canada
- Full-time
The Senior Back-End Developer is responsible for strengthening and extending the Off2Class software platform through reliable, scalable, and maintainable back-end development. This role…
Added 1 day ago
W
Senior Data Migration Specialist
WELLSTAR
Remote, Canada
- Full-time
- Remote
…is to support providers and patients, shifting the emphasis back to quality, timeliness, and positive outcomes. With a comprehensive suite of technology solutions, we have successfully…
Added 1 day ago
GO
Senior Research and Data Analyst
Government of New Brunswick
Fredericton, NB
- Full-time
Contribute to the ongoing development and maintenance of the tool, front end and back end, including intake forms, validation rules, calculation logic, data preparation, and report…

Off2Class

Senior Backend Developer

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Apr 6, 2027
Experience: Minimum of 8+ years of professional software development experience, with significant back-end development responsibility
Posting language: English
Posted: Oct 8, 2026

Original job description

Company Description

Off2Class has been supporting English as a Second Language (ESL) teachers since 2014 with tools and curriculum that simplify lesson planning and address diverse language learning needs. The company collaborates closely with educators worldwide to save time, reduce frustration, and help them focus on teaching. Off2Class provides ready-to-use lesson content, tools for tracking learner progress, and teacher training to support varied implementation models. Its solutions are designed to be practical, user-friendly, and impactful, empowering teachers in different educational settings. Prospective team members join a mission-driven organization dedicated to improving language education through thoughtful technology and content.

Role Description

The Senior Back-End Developer is responsible for strengthening and extending the Off2Class software platform through reliable, scalable, and maintainable back-end development. This role focuses on server-side architecture, APIs, database performance, infrastructure reliability, integrations, testing, and deployment quality.

The Senior Back-End Developer will work closely with the Lead Developer and Technical Project Manager to deliver high-quality back-end solutions that support product growth, platform stability, and a smooth experience for schools, teachers, and learners.

Job Duties

Back-End Development

Design, build, and maintain reliable server-side application logic, APIs, services, and integrations.
Develop scalable back-end features from technical planning through deployment.
Improve existing back-end systems for performance, maintainability, security, and reliability.
Collaborate with front-end developers to ensure APIs and data flows support product requirements effectively.

Architecture & Code Quality

Contribute to back-end architecture decisions and help evolve the platform’s technical foundations.
Write clean, maintainable, well-documented code that follows established engineering standards.
Review pull requests with attention to performance, security, reliability, and long-term maintainability.
Identify and reduce technical debt in core systems.

Database & Performance Management

Design, optimize, and maintain database queries, schemas, and data access patterns.
Monitor and improve the performance of SQL databases, Redis, background jobs, and other back-end services.
Investigate bottlenecks, failed jobs, production errors, and performance spikes.
Support reliable data processing and system availability across the platform.

Infrastructure & Dependency Management

Maintain and update back-end dependencies, software packages, server components, and plugins.
Support cloud infrastructure and services, including AWS EC2 and RDS.
Monitor server environments, resource usage, and application health.
Contribute to secure and reliable deployment practices.

Quality Assurance & Testing

Write comprehensive tests for new back-end code, including unit, integration, and regression tests where appropriate.
Support debugging and root-cause analysis for production issues.
Improve error handling, logging, monitoring, and alerting.
Ensure back-end changes are delivered with a strong focus on stability and reliability.

Continuous Integration/Continuous Deployment (CI/CD)

Create, update, and review Pull Requests (PRs).
Support smooth deployment processes using CI/CD best practices.
Help maintain reliable release processes and reduce deployment risk.
Collaborate with the development team to improve build, test, and deployment workflows.

Collaboration & Technical Planning

Work with the Lead Developer, Technical Project Manager, product team, and other developers to clarify requirements and define technical solutions.
Break down technical work into clear, manageable tasks.
Communicate trade-offs, risks, dependencies, and implementation options clearly.
Proactively suggest technical improvements that strengthen the platform.

Competencies

Back-End Engineering: Strong ability to design, build, and maintain robust server-side systems.
System Reliability: Focused on uptime, stability, monitoring, and production readiness.
Database Expertise: Skilled at working with SQL databases, query optimization, and data integrity.
Problem-Solving: Able to diagnose complex technical issues and resolve them efficiently.
Code Quality: Committed to clean, testable, maintainable code and thoughtful peer review.
Security Awareness: Understands secure coding practices and infrastructure considerations.
Communication: Able to explain technical issues, risks, and solutions clearly to technical and non-technical colleagues.
Adaptability: Comfortable learning new tools, frameworks, and technologies as platform needs evolve.
Teamwork: Works collaboratively with developers, product, and project stakeholders to achieve shared goals.

Job Qualifications

Bachelor’s degree in Computer Science, Software Engineering, or equivalent experience
Minimum of 8+ years of professional software development experience, with significant back-end development responsibility
Strong proficiency in PHP and server-side application development
Experience with JavaScript, HTML, and Frontend framworks, sufficient to collaborate effectively with front-end development work
Experience with server management: Ubuntu, Nginx, SQL, Redis
Experience managing AWS infrastructure and services, including EC2 and RDS
Experience designing, building, and maintaining APIs and integrations
Strong experience with testing, debugging, performance optimization, and production support
Experience using project management and development tools, such as Jira, GitHub, or Linear
Based in the Greater Toronto Area

Key Performance Indicators (KPIs)

Back-End Delivery: Number and quality of back-end features, services, APIs, and improvements delivered within planned timeframes.
System Stability: Reduction in production bugs, failed jobs, downtime, and recurring technical issues.
Bug Resolution Time: Average time taken to identify, address, and resolve back-end defects.
Code Quality: Frequency of critical issues found in code after deployment.
Performance Improvements: Measurable improvements in application speed, query efficiency, background job reliability, or infrastructure utilization.
Pull Request Cycle Time: Time from PR creation to merge, indicating efficiency in development and review processes.
Deployment Reliability: Frequency of successful deployments and reduction in deployment-related incidents.
Technical Debt Reduction: Progress on refactoring, dependency updates, and maintainability improvements.

What Success Looks Like

30 Days

Complete architecture and codebase onboarding across core PHP services, databases, and AWS environments.
Ship first bug fixes and minor backend feature PRs through standard CI/CD and review workflows.
Establish smooth collaboration rhythms with the Lead Developer, TPM, and frontend team.

60 Days

Independently build, test, and deploy new backend features and APIs aligned with product roadmap priorities.
Optimize database queries, Redis caching, or background job performance to resolve bottlenecks.
Actively review peer PRs and expand automated unit and integration test coverage.

90 Days

Own end-to-end technical delivery of complex backend epics from architectural planning to production release.
Drive platform reliability, technical debt reduction, and AWS infrastructure maintenance (EC2/RDS).
Ensure high deployment reliability, low PR cycle times, and proactive error monitoring.

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More about this job

Responsibilities

Design, build, and maintain reliable back-end services, APIs, integrations, and database systems, while improving performance, security, code quality, and platform reliability. Collaborate with technical and product stakeholders to plan and deliver features, support AWS infrastructure, test and deploy changes, and diagnose production issues.

Requirements

Requires at least eight years of professional software development experience with significant back-end responsibility, strong PHP skills, and experience with APIs, SQL, Redis, Ubuntu, Nginx, and AWS EC2 and RDS. A bachelor's degree in Computer Science or Software Engineering, or equivalent experience, is required; candidates should also have experience with JavaScript, HTML, testing, debugging, performance optimization, production support, and development tools such as Jira, GitHub, or Linear.

Skills

PHP
Back-End Development
API Development
SQL
Redis
AWS
Amazon EC2
Amazon RDS
Ubuntu
Nginx
JavaScript
HTML
Database Optimization
Automated Testing
CI/CD
Production Support

Visa sponsorship

Not detected in the job text

Keywords

PHP
JavaScript
HTML
APIs
SQL
Redis
Ubuntu
Nginx
AWS
Amazon EC2
Amazon RDS
Back-End Architecture
Server-Side Development
Database Optimization
Integrations
Background Jobs
Automated Testing
Unit Testing
Integration Testing
Regression Testing
CI/CD
Pull Requests
Production Support
Performance Optimization
Monitoring
Logging
Alerting
Security
Jira
GitHub

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