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Added 16 days ago
FH
Lead, Health Informatics
Fraser Health
Surrey, BC
- Full-time
Key areas of focus include knowledge management, decision support, and the development and implementation of application architecture. The Lead, Health Informatics also provides expertise…
Added 16 days ago
T
.NET/C# Engineer, TD Securities
TD
Toronto, ON
- Full-time
Building a World-Class, Diverse and Inclusive Technology Team
Added 16 days ago
K
Manager, Governance & Controls
KPMG
Calgary, AB · AB · Lethbridge, AB · Abbotsford, BC · Burnaby, BC · Chilliwack, BC · Fort St. John, BC · Kamloops, BC · Kelowna, BC · Langley (District), BC · Prince George, BC · Quesnel, BC · Vancouver, BC · Vanderhoof, BC · Vernon, BC · Victoria, BC · Winnipeg, MB · Fredericton, NB · Moncton, NB · Saint John, NB · St. John's, NL · Halifax, NS · Hamilton, ON · Kingston, ON · London, ON · North Bay, ON · Oakville, ON · Ottawa, ON · Parry Sound, ON · Perth, ON · Sault Ste. Marie, ON · St. Catharines, ON · Sudbury, ON · Toronto, ON · Vaughan, ON · Waterloo, ON · Windsor, ON · ON · Brossard, QC · Joliette, QC · Mont-Royal, QC · Montreal, QC · Quebec, QC · Regina, SK · Saskatoon, SK · Swift Current, SK · Langley, British Columbia · Edmonton, Alberta · Kanata, Ontario · Mount Royal, Quebec · Saint-Laurent, Quebec
- Full-time
We are looking for a Manager, Governance & Controls to leads the day-to-day operation of the HR SoQM Office by planning, coordinating, and monitoring HR’s annual quality management workplan…
Added 16 days ago
SW
Portfolio Administrator
Scotia Wealth Management
Toronto, ON
- Full-time
Key point of contact for clients on behalf of assigned Relationship Manager
Added 16 days ago
N
Human Resources Generalist
NexKemia
Mansonville, QC
- Full-time
Reporting to the Canada HR Manager, you will act as the primary HR partner on-site, supporting managers and employees across a wide range of human resources activities.
Added 16 days ago
C
Trade Settlement and Private Wealth Manager
CGI
Toronto, ON
- Full-time
Identify opportunities to improve processes, controls, and operational efficiency, and lead the implementation of approved changes.
Added 16 days ago
QM
Senior Project Manager - Technology & Systems Implementation
Quantum Management Services Ltd.
Toronto, ON
- $85,000 to $100,000 CAD / year
- Full-time
Position: Senior Project Manager - Technology & Systems Implementation
Added 16 days ago
A
Concepteur logiciel Sr (Java AWS)
Astek
Montreal, QC · Greater Montreal Metropolitan Area
- Contract
XX, ton futur Manager, te proposera ensuite d’échanger autour de cette opportunité, de ton parcours et de tes attentes !
Added 16 days ago
S
AI Deployment Manager
Senpilot
Toronto, ON
- Full-time
…regular, measurable use of our AI agents. As an AI Deployment Manager for the regulatory agent, you’ll own the team’s hardest problems: getting users to useful results, turning enterprise…
Added 16 days ago
DA
ERP & Business Systems Manager
Danby Appliances
Guelph, ON
- $85,000 to $90,000 CAD / year
- Full-time
Danby is searching for an ERP & Business Systems Manager to lead business systems alignment, operational support, and delivery across NetSuite, EDI, and related integrations. Acting as the…
Added 16 days ago
Materials Coordinator
Aecon
Fort Saskatchewan, AB
The Materials Coordinator will report to the Materials Manager and will be responsible for the receipt, recording, issuance tracking and planning of critical materials and equipment. This…
Added 16 days ago
V
Project Manager, Digital Transformation and User Experience
VINCI
Brossard, QC
- Full-time
Lead change management initiatives throughout the entire lifecycle of digital projects, from planning and implementation to long term deployment, including adoption activities, satisfaction…
Added 16 days ago
D
Program Delivery & Experience Specialist, Boardroom Program (11 months Secondment)
Deloitte
Toronto, ON
- Full-time
…Boardroom Program portfolio. Working closely with the Senior Manager and other members of the team, this role provides a unique opportunity to strengthen project and event delivery…
Added 16 days ago
D
Oracle Cloud ERP Finance Manager
Deloitte
St. John's, NL · Greater St. John's Metropolitan Area
- Full-time
As an Oracle Cloud ERP Finance Manager, you will support multiple Oracle Cloud Finance engagements across various clients and finance domains.
Added 16 days ago
D
Oracle Cloud ERP Finance Manager
Deloitte
Fredericton, NB
- Full-time
As an Oracle Cloud ERP Finance Manager, you will support multiple Oracle Cloud Finance engagements across various clients and finance domains.
Added 16 days ago
Senior Product Manager - Createspace, Canada Based
D2L
Vancouver, BC · Winnipeg, MB · Kitchener, ON · Toronto, ON
The Senior Product Manager will be responsible for the success of their product features, from overall product alignment to specific product requirements through to delivery to the market…
Added 16 days ago
P
Managed Services, Service Delivery Manager (Bilingual FR/EN)
PwC
Montreal, QC · Quebec, QC
- Full-time
As a Managed Services, Service Delivery Manager (Bilingual FR/EN), unlock your potential and embrace the chance to drive meaningful outcomes that’ll elevate your career. You will be…
Added 16 days ago
R
e-Discovery Program Manager
Raise
Toronto, ON
- Contract
We at Raise are hiring an e-Discovery Program Manager for one of our top clients. After establishing themselves as an industry leader, they’re now expanding their team to meet rising…
Added 16 days ago
ET
Operations Manager
Extreme Telematics Corp.
Calgary, AB
- Full-time
Extreme Technology for Extreme Conditions. Extreme Telematics Corp. is a Calgary-based industrial technology company founded in 2001. ETC designs, manufactures, deploys and supports…
Added 16 days ago
OD
FR 62% Elem Contract, Grade 7/8, French Language / Science/Social Studies / Phys. Ed / Drama & Dance (8:45 - 12:30)
Ottawa-Carleton District School Board (OCDSB)
Ottawa, ON
- Contract
…and well-being. The school is currently looking at a deeper implementation of the Third Path to support these…
Added 16 days ago
O
Senior Backend Developer
Off2Class
Toronto, ON · Greater Toronto Area, Canada
- Full-time
…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…
Added 16 days ago
D
Oracle Cloud ERP Finance Manager
Deloitte
Saskatoon, SK
- Full-time
As an Oracle Cloud ERP Finance Manager, you will support multiple Oracle Cloud Finance engagements across various clients and finance domains.
Added 16 days ago
NC
Project Coordinator
NAV CANADA
Ottawa, ON
- Full-time
Work directly with the Program or Project Manager to oversee activities surrounding overall program and project monitoring and reporting to ensure delivery and financial performance for…
Added 16 days ago
SL
Data Scientist
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Toronto One York
- Full-time
Reporting to the Data Science Manager as a Data Scientist you will focus on supporting Canadian business units in accelerating the growth and application of advanced analytics in driving…
Added 16 days ago
SL
Senior Data Engineer
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Toronto One York
- Full-time
Reporting to the Manager of Data Engineering, the Senior Business Data Engineer will be a key member of Data Enablement Team responsible for building enriched data products that provide…

Off2Class

Senior Backend Developer

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

Full-time

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Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Apr 21, 2027
Experience: Minimum of 8+ years of professional software development experience, with significant back-end development responsibility
Posting language: English
Posted: Oct 23, 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 platform performance, security, and maintainability. Support AWS infrastructure, testing, monitoring, and deployment reliability, and collaborate with developers and product stakeholders to deliver technical solutions.

Requirements

Requires a bachelor’s degree in Computer Science, Software Engineering, or equivalent experience, plus at least 8 years of professional software development experience with significant back-end responsibility. Candidates should have strong PHP skills, experience with APIs, SQL, Redis, AWS EC2 and RDS, server management, testing, debugging, and performance optimization, and be based in the Greater Toronto Area.

Skills

PHP
Back-End Development
API Development
JavaScript
HTML
SQL
Redis
AWS
Ubuntu
Nginx
Database Optimization
Testing
Debugging
Performance Optimization
CI/CD
Production Support

Visa sponsorship

Not detected in the job text

Keywords

PHP
JavaScript
HTML
SQL
Redis
AWS
AWS EC2
AWS RDS
Ubuntu
Nginx
Back-End Development
Server-Side Architecture
APIs
Integrations
Database Schemas
Query Optimization
Background Jobs
Cloud Infrastructure
Unit Testing
Integration Testing
Regression Testing
CI/CD
GitHub
Jira
Linear
Pull Requests
Monitoring
Logging
Error Handling
Production Support

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