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Added 6 mins ago
ES
Core Java Dev + Etrade
Epsilon Solutions Ltd.
Toronto, ON
- Contract
We are seeking a highly skilled Senior Java Developer with AI experience to join the FIC Global Spread Products eTrading Technology team. The successful candidate will contribute to the…
Added 6 mins ago
HO
BI Analytics Engineer
Hydro One
Toronto, ON
- $80 to $100 CAD / hour
- Contract
…business reports. The successful candidate will work directly with Gold Lakehouse tables, Direct Lake semantic models, DAX measures, relationships, metadata, and downstream Power BI reports…
Added 8 mins ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Remote, Canada
- Full-time
- Remote
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive.
Added 8 mins ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Remote, Canada
- Full-time
- Remote
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive.
Added 8 mins ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Remote, Canada
- Full-time
- Remote
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive.
Added 8 mins ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Remote, Canada
- Full-time
- Remote
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive.
Added 8 mins ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Remote, Canada
- Full-time
- Remote
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive.
Added 22 mins ago
RB
Lead Full Stack Developer
Royal Bank of Canada
Toronto, ON
- Full-time
…continuously working to improve our Agile, Engineering, and DevOps practices and this role will be expected to actively participate in these…
Added 35 mins ago
Y
Senior Back End Developer
Yochana
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- Full-time
…developing, and maintaining scalable backend services, integrating with multiple internal and external systems, and ensuring high availability and performance of…
Added 53 mins ago
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Java API Developer
BMO
Toronto, ON · BMOPLACE
- Full-time
…managing development teams and processes, and conducting software testing and maintenance. Specific project areas of focus includes translating user requirements into technical…
Added 1 hour ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Ottawa, ON
- $96,557 to $128,743 CAD / year
- Full-time
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive
Added 1 hour ago
M(
[C] Full Stack Developer
MLSE (Maple Leaf Sports & Entertainment Partnership)
Toronto, ON · Scotiabank Arena
- Part-time
Assist with backend development tasks using Python, ensuring stability and performance.
Added 1 hour ago
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Machine Learning Engineer
TEEMA
Toronto, ON
- $115,000 to $120,000 CAD / year
- Full-time
We are looking for an experienced MLOps / DevOps Infrastructure Engineer with strong cloud, automation and software delivery experience. This role combines hands-on AWS/GCP infrastructure,…
Added 1 hour ago
C
Senior Python Engineer
Citi
Mississauga, ON
- Full-time
Collaborate with cross-functional teams (Risk, Quants, FO, DevOps, Production Support) for seamless delivery.
Added 2 hours ago
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Added 2 hours ago
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RQ11611 - Business Analyst - Senior
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Toronto, ON
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Familiarity with quality assurance methodologies and testing
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Data Engineer
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- Full-time
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Added 2 hours ago
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Senior Microsoft Dynamics CRM Developer
Veriday Inc.
Toronto, ON
- Contract
Experience with source control, automated deployments, and CI/CD using Azure DevOps or comparable tools.
Added 3 hours ago
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Analyst, System Testing
EPCOR
AB · Edmonton, Alberta
- Full-time
Deliver results aligned with performance metrics and project objectives.
Added 3 hours ago
AS
Back End Developer
Ardent SoftSol Inc.
Brampton, ON
- Contract
…developing, and maintaining scalable backend services, integrating with multiple internal and external systems, and ensuring high availability and performance of…
Added 3 hours ago
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- Full-time
…Team, responsible for developing and executing comprehensive testing strategies to ensure industrial machinery control software - particularly for injection molding machines - meets both…
Added 3 hours ago
TI
Sr. Java Backend Developer
Tekgence Inc
Brampton, ON
- Contract
…developing, and maintaining scalable backend services, integrating with multiple internal and external systems, and ensuring high availability and performance of…
Added 3 hours ago
Y
Sr. Backend Developer
Yochana
Brampton, ON
- Full-time
…developing, and maintaining scalable backend services, integrating with multiple internal and external systems, and ensuring high availability and performance of…
Added 3 hours ago
Y
Senior Backend Developer
Yochana
Toronto, ON
- Full-time
…developing, and maintaining scalable backend services, integrating with multiple internal and external systems, and ensuring high availability and performance of…
Added 3 hours ago
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EXFO

Développeur Logiciel Backend

Montreal, QC, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Posting language: English · French
Posted: Sep 9, 2026

Original job description

English section of this bilingual listing.

About Us

Our software platform is based on a containerized microservices architecture, runs primarily on Linux, and is deployed in on‑premises, cloud, and hybrid environments. Reliability, scalability, performance, and operational excellence are at the core of what we do.

The Role

We are looking for a Senior Backend Software Developer (5–10 years of experience) to design, develop, and evolve the backend services at the heart of our fiber monitoring platforms.

You will work on distributed systems, API‑driven services, and high‑throughput data pipelines in a domain where software interfaces directly with real‑world network and hardware infrastructure. This role is ideal for someone who is curious, autonomous, and detail‑oriented, and who enjoys understanding complex systems end‑to‑end and seeing their work running in production at scale.

Key Responsibilities

Design, develop, and maintain backend services and microservices with a strong focus on performance, reliability, and resilience
Develop backend services primarily using Java, Node.js, and Go (Golang)
Design, document, and maintain robust and versioned RESTful APIs
Contribute to the evolution of a microservices architecture deployed in containerized environments
Package and deploy applications using Docker
Collaborate closely with DevOps teams to operate services in production (monitoring, logging, alerting)
Participate in architecture discussions, design reviews, and code reviews
Troubleshoot and resolve complex issues in production distributed systems
Contribute to CI/CD pipelines, automated testing, and engineering best practices
Work closely with Product, QA, and other engineers to deliver reliable and valuable features

Required Technical Skills

5–10 years of professional backend software development experience
Strong experience developing backend services using Java, Node.js, and Go (Golang) in production environments
Solid understanding of microservices architectures, including:
- Service boundaries and ownership
- Inter‑service communication patterns
- API design, versioning, and governance
- Scalability, resiliency, and fault‑tolerance concepts
Proven hands‑on experience with Docker and containerized applications
Experience designing and consuming REST APIs
Comfortable working in Linux environments
Proficiency with Git and collaborative development workflows
Good understanding of concurrency, networking, and performance considerations in backend systems

Observability & Operations

Experience with logging, monitoring, and alerting in production environments
Familiarity with observability concepts and tools (metrics, distributed tracing, logs)
Ability to diagnose and analyze issues across multiple services, containers, and infrastructure layers

Assets / Nice to Have

Experience working with embedded systems or systems close to hardware
Knowledge of the C# language, particularly in system‑level tools, utilities, or backend integrations
Background in telecommunications, network monitoring, or fiber‑optic networks
Familiarity with event‑driven architectures and real‑time or near‑real‑time distributed systems
Experience with iOS and/or Android mobile development, particularly for visualization, diagnostics, or control applications, is considered an asset
Understanding or practical experience with AI coding assistants and agent‑based development tools (e.g., Cursor or similar)

Soft Skills & Mindset

Naturally curious and motivated to deeply understand how systems behave in production
Self‑driven and autonomous, able to own features from design through deployment
Strong analytical and problem‑solving skills
Clear communicator, comfortable collaborating across teams
High standards for quality and a strong sense of ownership for production systems
Team‑oriented with a proactive attitude

Requirements

Bachelor’s degree in Software Engineering, Computer Science, or equivalent professional experience
Working or fluent English required (French is a strong asset)
Legal authorization to work in Canada

What We Offer

Competitive salary and comprehensive benefits package
Hybrid and flexible work environment
Opportunity to work on real‑world infrastructure at global scale
Collaborative, pragmatic engineering culture
Long‑term product roadmap with meaningful technical challenges
Continuous learning and professional growth opportunities

EXFO is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Read the full bilingual original

Job Description:

Plateformes de surveillance de fibres optiques et de visibilité réseau

Lieu : Montréal – Hybride

À propos de nous

Nous concevons des plateformes logicielles critiques de surveillance de fibres optiques et de visibilité réseau, utilisées par des opérateurs télécoms et des fournisseurs de centres de données à travers le monde. Nos solutions permettent la surveillance en temps réel des réseaux fibre, incluant la détection et la localisation de pannes, l’analyse de dégradations de signal et l’assurance de service, tant pour les réseaux extérieurs (OSP) que pour les centres de données et les interconnexions DCI.

Notre écosystème logiciel repose sur une architecture de microservices conteneurisés, s’exécute principalement sous Linux et est déployé dans des environnements on‑premise, cloud et hybrides. La fiabilité, la performance, la scalabilité et l’excellence opérationnelle sont au cœur de notre ADN.

Le rôle

Nous recherchons un développeur backend senior (5 à 10 ans d’expérience) afin de concevoir, développer et faire évoluer les services backend au cœur de nos plateformes de surveillance de fibres optiques.

Vous travaillerez sur des systèmes distribués, des services orientés API et des pipelines de données à haut débit, dans un contexte où le logiciel interagit directement avec des infrastructures réseau et matérielles réelles. Ce rôle s’adresse à une personne curieuse, autonome et rigoureuse, qui souhaite comprendre des systèmes complexes de bout en bout et dont les livrables sont utilisés en production à grande échelle.

Responsabilités principales

Concevoir, développer et maintenir des services backend et microservices avec un fort accent sur la performance, la fiabilité et la résilience
Développer des services principalement en Java, Node.js et Go (Golang)
Concevoir, documenter et maintenir des API REST robustes et versionnées
Contribuer à l’évolution d’une architecture microservices déployée dans des environnements conteneurisés
Conteneuriser et déployer les applications à l’aide de Docker
Collaborer étroitement avec les équipes DevOps pour l’exploitation des services en production (monitoring, logs, alertes)
Participer aux décisions d’architecture, aux revues de conception et aux revues de code
Diagnostiquer et résoudre des problèmes complexes dans des systèmes distribués en production
Contribuer aux pipelines CI/CD, aux tests automatisés et aux bonnes pratiques d’ingénierie
Travailler en collaboration avec les équipes Produit, QA et d’autres développeurs afin de livrer des fonctionnalités de grande valeur

Compétences techniques requises

5 à 10 ans d’expérience professionnelle en développement backend
Solide expérience en Java, Node.js et Go (Golang) pour le développement de services backend en production
Très bonne compréhension des architectures microservices, incluant :
- La définition et la responsabilité des frontières de services
- Les patterns de communication inter‑services
- La conception, le versionnement et la gouvernance des API
- Les notions de scalabilité, de résilience et de tolérance aux pannes
Expérience pratique confirmée avec Docker et les applications conteneurisées
Expérience dans le développement et la consommation d’API REST
À l’aise dans des environnements Linux
Maîtrise de Git et des flux de développement collaboratif
Bonne compréhension des enjeux de concurrence, réseau et performance des systèmes backend

Observabilité et exploitation

Expérience avec la journalisation, la surveillance et les alertes en environnement de production
Familiarité avec les concepts et outils d’observabilité (métriques, traces distribuées, logs)
Capacité à analyser et diagnostiquer des problèmes impliquant plusieurs services, conteneurs et couches d’infrastructure

Atouts appréciés

Expérience avec des systèmes embarqués (embedded systems) ou des environnements proches du matériel
Connaissance du langage C#, notamment dans des contextes orientés systèmes, outils ou intégrations backend
Expérience dans les domaines des télécommunications, de la surveillance réseau ou des réseaux à fibres optiques
Familiarité avec les architectures événementielles et les systèmes distribués temps réel ou quasi temps réel
Expérience en développement mobile iOS et/ou Android, notamment pour des applications de visualisation, de diagnostic ou de contrôle, est considérée comme un atout
Compréhension ou expérience pratique avec des assistants de programmation basés sur l’IA et des outils de développement pilotés par agents (ex. Cursor ou équivalent)

Compétences humaines et état d’esprit

Curieux(se) et motivé(e) par la compréhension approfondie de systèmes complexes en production
Autonome, capable de prendre en charge des fonctionnalités de la conception jusqu’au déploiement
Excellentes capacités d’analyse et de résolution de problèmes
Bonnes aptitudes en communication et en collaboration interdisciplinaire
Sens élevé de la qualité et de la responsabilité vis‑à‑vis des systèmes critiques
Esprit d’équipe et attitude proactive

Exigences minimales

Baccalauréat en génie logiciel, informatique ou expérience équivalente
Anglais fonctionnel ou avancé requis (le français est un atout important)
Autorisation légale de travailler au Canada

Ce que nous offrons

Salaire concurrentiel et programme complet d’avantages sociaux
Environnement de travail hybride et flexible
Opportunité de travailler sur des produits utilisés sur des réseaux réels à l’échelle mondiale
Culture d’ingénierie pragmatique, collaborative et orientée qualité
Vision produit à long terme avec des défis techniques stimulants
Opportunités continues d’apprentissage et de développement professionnel

----------------------------------------

Fiber Monitoring & Network Visibility Platforms

Location: Montreal – Hybrid

About Us

We build mission‑critical fiber monitoring and network visibility platforms used by leading telecommunications operators and data center providers worldwide. Our solutions enable real‑time monitoring of fiber networks, including fault detection and localization, signal degradation analysis, and service assurance, across outside plant (OSP), data centers, and DCI environments.

The Role

We are looking for a Senior Backend Software Developer (5–10 years of experience) to design, develop, and evolve the backend services at the heart of our fiber monitoring platforms.

Key Responsibilities

Design, develop, and maintain backend services and microservices with a strong focus on performance, reliability, and resilience
Develop backend services primarily using Java, Node.js, and Go (Golang)
Design, document, and maintain robust and versioned RESTful APIs
Contribute to the evolution of a microservices architecture deployed in containerized environments
Package and deploy applications using Docker
Collaborate closely with DevOps teams to operate services in production (monitoring, logging, alerting)
Participate in architecture discussions, design reviews, and code reviews
Troubleshoot and resolve complex issues in production distributed systems
Contribute to CI/CD pipelines, automated testing, and engineering best practices
Work closely with Product, QA, and other engineers to deliver reliable and valuable features

Required Technical Skills

5–10 years of professional backend software development experience
Strong experience developing backend services using Java, Node.js, and Go (Golang) in production environments
Solid understanding of microservices architectures, including:
- Service boundaries and ownership
- Inter‑service communication patterns
- API design, versioning, and governance
- Scalability, resiliency, and fault‑tolerance concepts
Proven hands‑on experience with Docker and containerized applications
Experience designing and consuming REST APIs
Comfortable working in Linux environments
Proficiency with Git and collaborative development workflows
Good understanding of concurrency, networking, and performance considerations in backend systems

Observability & Operations

Experience with logging, monitoring, and alerting in production environments
Familiarity with observability concepts and tools (metrics, distributed tracing, logs)
Ability to diagnose and analyze issues across multiple services, containers, and infrastructure layers

Assets / Nice to Have

Experience working with embedded systems or systems close to hardware
Knowledge of the C# language, particularly in system‑level tools, utilities, or backend integrations
Background in telecommunications, network monitoring, or fiber‑optic networks
Familiarity with event‑driven architectures and real‑time or near‑real‑time distributed systems
Experience with iOS and/or Android mobile development, particularly for visualization, diagnostics, or control applications, is considered an asset
Understanding or practical experience with AI coding assistants and agent‑based development tools (e.g., Cursor or similar)

Soft Skills & Mindset

Naturally curious and motivated to deeply understand how systems behave in production
Self‑driven and autonomous, able to own features from design through deployment
Strong analytical and problem‑solving skills
Clear communicator, comfortable collaborating across teams
High standards for quality and a strong sense of ownership for production systems
Team‑oriented with a proactive attitude

Requirements

Bachelor’s degree in Software Engineering, Computer Science, or equivalent professional experience
Working or fluent English required (French is a strong asset)
Legal authorization to work in Canada

What We Offer

Competitive salary and comprehensive benefits package
Hybrid and flexible work environment
Opportunity to work on real‑world infrastructure at global scale
Collaborative, pragmatic engineering culture
Long‑term product roadmap with meaningful technical challenges
Continuous learning and professional growth opportunities

EXFO is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Apply About employer

More about this job

Responsibilities

Design, develop, and maintain backend microservices with a focus on performance, reliability, and scalability. Collaborate with DevOps and cross-functional teams to deploy and operate high-throughput data pipelines in production environments.

Requirements

Requires 5-10 years of professional backend development experience with proficiency in Java, Node.js, and Go. Candidates must hold a bachelor's degree in Software Engineering or Computer Science and possess legal authorization to work in Canada.

Skills

Java
Node.js
Go
Microservices
Docker
REST APIs
Linux
Git
Distributed systems
CI/CD
Observability
Network monitoring
Fiber optics
System performance
Troubleshooting

Benefits

Competitive salary
Hybrid and flexible work environment
Professional development opportunities

Visa sponsorship

Not detected in the job text

Keywords

Backend Development
Microservices
Java
Node.js
Golang
Docker
RESTful APIs
Linux
Git
CI/CD
Distributed Systems
Fiber Optics
Network Monitoring
Observability
Scalability
Resilience
Telecommunications
Data Centers
Embedded Systems
C#
Event-driven Architecture
Performance Tuning
Software Engineering
Cloud
On-premise
Hybrid Environment
API Governance
Fault Detection
Infrastructure
Automation

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