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Added 22 hours ago
RC
Material Handler - Stayner
Randstad Canada
Stayner, ON
- $18 to $18.5 CAD / hour
- Contract
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Receptionist - Weekend Support - contract position
Randstad Canada
Victoria, BC
- $23 CAD / hour
- Contract
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Electrical Project Manager Substations
Randstad Canada
Toronto, ON
- $100 to $125 CAD / hour
- Full-time
Must hold valid Class “G” Drivers License
Added 22 hours ago
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Plant manager
Randstad Canada
Gatineau, QC
- $120,000 to $135,000 CAD / year
- Full-time
Added 22 hours ago
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Picker/Packer
Randstad Canada
Guelph, ON
- $21.5 CAD / hour
- Contract
Choice of steady shift options, including straight day shifts and dedicated afternoon shifts
Added 22 hours ago
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Contract Conformance Specialist IV
Randstad Canada
Calgary, AB
- Contract
Added 22 hours ago
SS
Systems Integration Developer
SIR solutions
Montréal, QC
- Full-time
Added 22 hours ago
RC
Office clerk
Randstad Canada
Saint-Laurent, QC
- $23 to $25 CAD / hour
- Contract
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Senior Project Manager/Leader
Randstad Canada
Toronto, ON
- Contract
Assignment Type: Hybrid (Up to 3 days per week onsite)
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310J Mechanic | Oshawa | Day Shift
Randstad Canada
Oshawa, ON
- $45 to $55 CAD / hour
- Full-time
310J Trailer Technician / Mechanic – Custom Builds (Day Shift) · Work-Life Balance: Straight day shift with an early leave every Friday at 2:30 PM
Added 22 hours ago
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Customer order management specialist
Randstad Canada
Saint-Hubert, QC
- $25 to $30 CAD / hour
- Contract
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Customer service Representative - B2B
Randstad Canada
Sainte-Catherine, QC
- $24 to $30 CAD / hour
- Contract
Stable day shift from 8:00 a.m · Must have a vehicle to commute to the office in Sainte-Catherine (site not accessible by public transit)
Added 22 hours ago
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Sales coordinator
Randstad Canada
Saint-Laurent, QC
- $25 to $28 CAD / hour
- Contract
Added 22 hours ago
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IT Analyst V - Technical Support
Randstad Canada
Toronto, ON
- $39.31 to $46.52 CAD / hour
- Contract
Assignment Type: Hybrid (2 days per week onsite)
Added 22 hours ago
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Sandblaster - Industrial Painter
Randstad Canada
Winnipeg, MB
- $24 CAD / hour
- Full-time
Excellent work-life balance with a set day shift from 6:00 AM to 2:30 PM · Excellent time-management skills to thrive in an early morning day shift routine
Added 22 hours ago
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Laser Machine Operator - North York
Randstad Canada
ON
- $20 CAD / hour
- Contract
-Competitive Earning Potential: Make up to $20/hr with our evening shift premium
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Senior Solutions Designer
Randstad Canada
Toronto, ON
- Contract
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Inside Sales Representative
Randstad Canada
Remote, Canada
- $60,000 CAD / year
- Full-time
- Remote
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Senior Software Developer
Randstad Canada
Toronto, ON
- Contract
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Senior Systems Testing/QA Specialist
Randstad Canada
Toronto, ON
- Contract
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Senior Business Analyst
Randstad Canada
Toronto, ON
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Senior Data Scientist
Randstad Canada
Toronto, ON
- Contract
Assignment Type: Onsite (5 days per week)
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Senior UX Designer
Randstad Canada
Toronto, ON
- Contract
Assignment Type: Onsite (5 days per week)
Added 22 hours ago
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Ingénieur.e d'application, Support aux ventes
Randstad Canada
Boisbriand, QC
- Full-time
Added 22 hours ago
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Bilingual Claims Examiner
Randstad Canada
Winnipeg, MB
- Contract
Work Mode: Hybrid – 2 days per week in-office – Winnipeg, MB

SIR solutions

Systems Integration Developer

Montréal, QC, Canada

Full-time

Apply on workforcenow.adp.com About employer

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Job details

Job type: Full-time
Experience: 5+ years of software development experience.
Posting language: English
Posted: Oct 15, 2026

Original job description

Position Overview

The Software Developer (Systems Integration Developer) is responsible for designing, building, and maintaining integration flows between the SMS POS platform and third-party systems (ERP, eCommerce, BI, and others), ensuring reliable data exchange across retail operations. You contribute to the performance of the entire application stack, .NET, SQL, Sencha UI layer and internal scripts within an Agile team, ensuring robustness, efficiency, and scalability.

Key Responsibilities

Act as technical bridge between the POS team and third-party system stakeholders, translating business requirements into integration specifications.
Design and implement integration solutions between SMS POS and third-party systems (ERP, eCommerce, BI, and others), using APIs, middleware connectors, and file-based (EDI / flat file) exchanges.
Develop and maintain custom logic within the SMS POS application (including the Sencha ExtJS UI layer) to support integration touchpoints and operational workflows.
Investigate and resolve integration incidents in production, working closely with infrastructure, third-party vendors, and retail operations teams.
Produce and maintain integration technical documentation: data mappings, sequence diagrams, API contracts, and operational runbooks.
Contribute to internal projects focused on designing and building reusable integration layers, shared middleware components, and common API gateway patterns used across systems.
Develop and maintain internal integration libraries, connectors, and adapters that standardize how retail systems communicate, reducing duplication across integration projects.

Required Skills & Qualifications

Integration: REST API’s, SOAP/Web Services, EDI, middleware/ESC basics
Strong understanding of SQL, stored procedures, triggers, and relational databases.
Java or C#, JavaScript and interest in Sencha Ext JS.
Degree in Computer Science or related field.
Bilingual in French and English (written and spoken).
5+ years of software development experience.

Preferred Qualifications

Familiarity with .NET (C#) and REST APIs, Experience with modern JS frameworks.
Experience or willingness to learn Sencha Ext JS.
Bilingual English/French.

Personal Attributes

Curious, adaptable, and collaborative.
Comfortably operating in environments where legacy constraints coexist with modern ambitions. Adjust priorities, approaches, and tooling to match project realities without losing sight of quality or long-term goals.
Picks up new technologies, platforms, and integration patterns quickly and independently. Does not wait to be taught; seeks out documentation, prototypes, and peer knowledge to get up to speed fast.
Able to anticipate where technologies are heading and help the team navigate transitions, from legacy systems toward modern platforms, by sharing knowledge, proposing migration paths.
Actively interested in how AI and automation tools can improve integration workflows, developer productivity, and data quality. Willing to experiment with AI-assisted development or intelligent monitoring.

Apply on workforcenow.adp.com About employer

More about this job

Responsibilities

The Systems Integration Developer at SIR solutions will design and maintain links between the POS system and other business software. The role also fixes live problems, writes technical documentation and builds shared integration tools for reuse.

Requirements

Candidates need 5+ years of software development experience, a Computer Science or related degree, and fluency in French and English. Working knowledge of REST APIs, SOAP, EDI, SQL and Java, C# or JavaScript is also required.

Skills

REST APIs
SOAP
Web Services
EDI
Middleware
ESB
SQL
Stored procedures
Triggers
Relational databases
.NET
C#
Java
JavaScript
Sencha ExtJS
API design
Integration architecture
Flat file exchange
Technical documentation
Incident troubleshooting
Agile
Modern JS frameworks
Bilingual French and English

Keywords

Systems Integration
integration developer
REST API
SOAP
Web Services
EDI
middleware
ESB
SQL
stored procedures
triggers
relational databases
.NET
C#
Sencha ExtJS
JavaScript
POS
ERP integration
eCommerce integration
Agile

Seniority

Senior

Tools

SMS POS
Sencha ExtJS
.NET
SQL

Languages

English
French

Fields of study

Computer Science

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Jobs in Canada