Senior Backend Engineer

MLSE; Toronto; On-site; CAD 90,000 - 120,000; Full time

Job summary

A digital innovation team in Toronto is seeking a highly motivated Senior Backend Engineer. This role involves developing scalable applications using modern practices, mentoring junior engineers, and ensuring integration with infrastructure teams. The position is a freelance 12-month contract with responsibilities covering application development, design, and implementation of automation solutions. Ideal candidates will possess strong software engineering skills and experience with micro-services and CI/CD tools.

Qualifications

• Advocate for security standards and micro-service architecture.
• Stay informed about emerging technologies and approaches.
• Understanding of Agile methodologies.
• Proven ability to take a project from requirements to launch.
• Ability to prioritize and handle work independently in a fast-paced environment.

Responsibilities

• Develop and deploy application solutions using modern DevOps practices.
• Build high-availability applications scalable to millions of users.
• Mentor and lead junior engineers.

Skills

Security standards advocacy

Micro-service architecture

SDLC practices

Agile methodologies

Project lifecycle management

Multi-tenant architecture migration

Independent work

GitHub

RESTful services

PostgreSQL

JavaScript / Typescript

NodeJS frameworks

Azure and AWS

CI/CD tools

Tools

Azure DevOps

Jenkins

Bamboo

Chef

Maven

Spring Boot

Kubernetes

OpenShift

Job description

MLSE Digital Labs is seeking a highly motivated Senior Backend Engineer to join the Digital Labs team. This individual will primarily work on the development and management of applications and will report to the Engineering Manager for Applications.

Position Type: Freelance 12-Month Contract

1. Develop and deploy application solutions using modern DevOps practices and security standards.
2. Build performant and highly available multi-tenant applications that scale easily to millions of users.
3. Establish standards and maintain a department-wide body of knowledge on engineering.
4. Participate in planning, definition, and high-level design of solutions and exploration of alternatives.
5. Mentor and lead junior engineers throughout the application delivery process.
6. Collaborate with Infrastructure and Application Engineering teams to define metadata layers, align on technical strategy, and ensure seamless integration.
7. Provide high-level sizing estimates for new development work.
8. Design and implement test automation solutions for application testing.

Qualifications:

Note: We understand you may not meet all qualifications but may have other relevant skills and experience. Please share this in the Message to the Hiring Manager section of our online application.

• Advocate for security standards and micro-service architecture.
• Stay informed about emerging technologies and approaches.
• Knowledge of SDLC practices including coding standards, code reviews, source control, build processes, testing, and operations.
• Understanding of Agile methodologies.
• Proven ability to take a project from requirements to launch.
• Experience migrating single-tenant systems to multi-tenant architectures with minimal downtime.
• Ability to prioritize and handle work independently in a fast-paced environment.
• Experience with source control tools like GitHub.
• Understanding of RESTful, GraphQL, WebSocket services.
• Experience with relational SQL databases such as PostgreSQL and migration tools like Flyway.
• Strong software engineering skills in JavaScript / Typescript.
• Experience with NodeJS frameworks like ExpressJS and Restify.
• Proficiency with Azure and AWS platforms.
• Experience with CI/CD tools such as Azure DevOps, Jenkins, Bamboo, Chef, Maven.
• Nice to have: Spring Boot, Kubernetes, OpenShift.

Additional Information:

Apply by: July 8, 2025

We thank all applicants; only those selected for an interview will be contacted.

MLSE is committed to diversity, equity, and inclusion. We are an equal opportunity employer and do not discriminate based on race, ancestry, place of origin, colour, ethnic origin, citizenship, creed, sex, sexual orientation, gender identity/expression, age, record of offences, marital or family status, or disability. Reasonable accommodations are provided for applicants with disabilities upon request. Please note this email is for accommodation requests only; resumes sent here will not be considered.

LI-DNP

Remote Work: Employment Type:

Full-time

Key Skills:

Business Intelligence, Bidding, Accounts Assistant Credit Control, Account Development, Content Development, Lab Testing

Experience: years

Vacancy: 1