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Added 27 mins ago
B
Facility Manager III - Future Opportunities
BGIS
Vancouver, BC
- Full-time
Derive a project plan for future maintenance activities and input into Capital Planning.
Added 57 mins ago
RB
Manager, Enterprise Hedge Accounting, NIH
Royal Bank of Canada
Toronto, ON
- Full-time
The Manager, Enterprise Hedge Accounting will manage the financial control responsibilities in the Enterprise Hedge Accounting with the objective of delivering timely, accurate and reliable…
Added 57 mins ago
A
Project engineer, Rolling stock vehicules
AtkinsRéalis
Montreal, QC
- Full-time
…Acting on behalf of the client, you will use your technical and system integration expertise to analyze technical documentation, develop system specifications, lead design reviews, develop…
Added 1 hour ago
C
Electrical Engineer / System Integrator
Canal
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- Full-time
Reporting to a Discipline Lead, Engineers / System Integrators participate in the design, development, implementation and documentation of marine systems and solutions. This role is…
Added 1 hour ago
Senior Manager of Operations
New Age Services Inc.
Calgary, AB
New Age Services Inc. (NAS) is seeking an experienced and collaborative Senior Manager of Operations to provide leadership across key corporate support functions, including Information…
Added 1 hour ago
Human Resources Coordinator E049-26
Legal Aid BC
Vancouver, BC
…position provides administrative services and human resources support services to the Manager and Human Resources Advisors in the areas of recruitment, HRIS, compensation and benefits,…
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TS
Relief Cook
The Salvation Army Canada and Bermuda Territory
Aurora, ON · Newmarket, ON · York Housing & Supportive Services - Belinda's Place
- Part-time
Ensure the proper maintenance and usage of a computer system, and proper record keeping of the same in accordance with the Territorial Computer Usage Policy.
Added 1 hour ago
B
Workplace Ambassador II
BGIS
Laval, QC
- Full-time
Learn HR technology tools and provide HR and communications support (i.e. Yammer). Assist with minor event planning and meeting space set up. Provide local amenities maps.
Added 1 hour ago
CT
Store Manager, 48th Ave
Canadian Tire Corporation
Taber, AB
- Full-time
Demonstrates and follows up on execution of Mark’s visual compliance standards, store maintenance and pricing standards.
Added 1 hour ago
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Manager, Special Operations
Factor_
Toronto, ON
- Full-time
We are seeking a highly skilled and versatile Manager (Ops Tech), Special Operations, to join Factor (factormeals.ca), a healthy, ready-to-heat meal delivery service under HelloFresh. This…
Added 1 hour ago
PS
Inventory Control Specialist
PRIDE Seeds
Chatham-Kent, ON
- Full-time
The Inventory Control Specialist is responsible for the execution of inventory transactions and maintenance of inventory accuracy across internal locations and third-party processors. This…
Added 2 hours ago
TO
Transit Supervisor - St. Thomas, ON
Transdev Ontario Manitoba
St. Thomas, ON
- Full-time
This individual will work closely with Human Resources and Maintenance to support operations while managing the individuals within the operation
Added 2 hours ago
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Maintenance Supervisor, Keephills
TransAlta
AB · Alberta, Canada
- Full-time
Reporting to the Maintenance Manager, this position is responsible for supervising maintenance employees and contractors, supporting the work management process, and ensuring maintenance…
Added 2 hours ago
TU
Manager, HRIS & Technology Analyst
The Universal Group
Langley (District), BC · Langley, British Columbia
- Full-time
…opportunity for a the Team Lead, HRIS & Technology that serves as the system owner for the organization’s HRIS and peripheral technology ecosystem and subject matter expert for systems…
Added 2 hours ago
Manager, Capital Planning & Systems
Amrize
Edmonton, AB
Reporting to the Director, WCan Capital and Industrial Systems, the Manager, Capital Planning & Systems oversees all capital activity across Western Canada, supporting growth and…
Added 2 hours ago
GM
Facility Area Manager (FAM)
General Motors
Oshawa, ON
- Full-time
General Motors is seeking a Facility Area Manager (FAM) to lead the effective operation, maintenance, improvement, and sustainment of facilities supporting Oshawa Assembly and the broader…
Added 2 hours ago
BC
MEP Field Specialist
Bechtel Corporation
Toronto, ON
- Other
As an MEP Field Specialist, you will provide on-site expertise and support for the delivery of Ontario Line’s South Civil works, focusing on a designated project section. Reporting to the…
Added 3 hours ago
T
Sr, Mainframe Engineer, TD Securities
TD
Toronto, ON
- Full-time
…amongst many areas of focus: innovation, design, execution, maintenance, strategy, portfolio management. We call all of these things incredible learning opportunities, and no two…
Added 3 hours ago
O
Senior Backend Developer
Off2Class
Toronto, ON · Greater Toronto Area, Canada
- Full-time
…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…
Added 3 hours ago
Tunneling Project Manager (Construction)
PACT
ON · Mississauga, Ontario
The Tunneling Project Manager will oversee design, construction and technical coordination across the Spring Creek Culvert Tunnels, which will function as a relief system to the existing…
Added 3 hours ago
SI
Senior Manager, Corporate Administration / Gestionnaire principal, administration corporative
Sport Integrity Canada/ Sport Intégrité Canada
Ottawa, ON
- Full-time
Reporting to the Director, Finance, Human Resources and Administration, the Senior Manager, Corporate Administration provides leadership in the implementation of corporate priorities and…
Added 3 hours ago
GO
Senior Research and Data Analyst
Government of New Brunswick
Fredericton, NB
- Full-time
…receive compensation data from employers across the province, support those employers in reporting accurately, and publish what the data shows about wage gaps in New…
Added 3 hours ago
Production Manager
Amrize
Saint-Constant, QC · St-Constant, Queb
Join Amrize as a Production Manager and help construct what's next. If you're ready to put your skills to work on projects that matter - and build a career with a company that’s building…
Added 3 hours ago
Manager, Special Operations
HelloFresh
Toronto, ON
We are seeking a highly skilled and versatile Manager (Ops Tech), Special Operations, to join Factor (factormeals.ca), a healthy, ready-to-heat meal delivery service under HelloFresh. This…
Added 4 hours ago
CO
Analyst, WFM Business Systems (Workforce Management Business Systems Analyst)
City of Brampton
Brampton, ON
- Full-time
Once this application is live and in production, this position will be responsible for the support and on-going maintenance of the application as well as recommend solutions to leverage the…

Off2Class

Senior Backend Developer

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

Full-time

Apply About employer

Applications open in a new tab.

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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