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Added just now
Sr. Network Designer
Rogers Communications
Calgary, AB · Brampton, ON · Ottawa, ON · Montreal, QC
Collaborate with technical and non-technical teams, leveraging system expertise to develop and deliver technical solutions.
Added just now
Staff Product Designer - UI Platform
Okta
Toronto, ON
The Staff Product Designer – UI Platform is a high-impact individual contributor role, serving as a foundational design lead for Okta's global user experience infrastructure. Joining the…
Added 45 mins ago
O
Staff Product Designer - UI Platform
Okta
Toronto, ON
- Full-time
The Staff Product Designer – UI Platform is a high-impact individual contributor role, serving as a foundational design lead for Okta's global user experience infrastructure. Joining the…
Added 1 hour ago
LI
Solutions Designer
Lotus IT Solutions
Toronto, ON
- Contract
The Ministry of Public and Business Service Delivery and Procurement is seeking a Senior Solutions Designer to join the Enterprise Financial Services Division on a full-time onsite…
Added 1 hour ago
SM
RQ11736 – Software Developer – Front End – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Extensive experience as a designer and developer of large-scale, multi-client, Internet-ready web applications.
Added 1 hour ago
SM
RQ11617 – UX Designer – Junior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Junior UX Designer with experience in user experience (UX) design, user interface (UI) design, interactive design, user research, wireframing, prototyping, and designing…
Added 1 hour ago
SM
RQ11617 – UX Designer – Junior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Junior UX Designer with experience in user experience (UX) design, user interface (UI) design, interactive design, user research, wireframing, prototyping, and designing…
Added 1 hour ago
SM
RQ11617 – UX Designer – Junior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Junior UX Designer with experience in user experience (UX) design, user interface (UI) design, interactive design, user research, wireframing, prototyping, and designing…
Added 1 hour ago
SM
RQ11737 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Ten or more years of experience as a designer and developer of large-scale, multi-client web applications, or equivalent senior experience.
Added 1 hour ago
SM
RQ11738 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Ten or more years of experience as a designer and developer of large-scale, multi-client web applications, or equivalent senior experience.
Added 1 hour ago
SM
RQ11736 – Software Developer – Front End – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Extensive experience as a designer and developer of large-scale, multi-client, Internet-ready web applications.
Added 1 hour ago
SM
RQ11736 – Software Developer – Front End – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Extensive experience as a designer and developer of large-scale, multi-client, Internet-ready web applications.
Added 1 hour ago
SM
RQ11737 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Ten or more years of experience as a designer and developer of large-scale, multi-client web applications, or equivalent senior experience.
Added 1 hour ago
SM
RQ11738 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Ten or more years of experience as a designer and developer of large-scale, multi-client web applications, or equivalent senior experience.
Added 1 hour ago
LI
Senior UX Designer
Lotus IT Solutions
Toronto, ON
- Contract
The Senior UX Designer will lead user-centred and service design for enterprise platform features and onboarded government services within the Government Services Integration Cluster,…
Added 1 hour ago
AI
Intermediate Mechanical Design Engineer
Aversan Inc.
Cambridge, ON
- $76,000 to $105,000 CAD / year
- Full-time
We are currently seeking a qualified Intermediate Mechanical Designer to join our team. The ideal candidate will have experience in designing mechanical systems and components, performing…
Added 1 hour ago
SM
RQ11738 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Ten or more years of experience as a designer and developer of large-scale, multi-client web applications, or equivalent senior experience.
Added 1 hour ago
SM
RQ11618 – UX Designer – Junior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Junior UX Designer with experience designing intuitive, user-friendly, and visually appealing digital experiences for web and mobile applications. The ideal candidate will…
Added 1 hour ago
SM
RQ11737 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Ten or more years of experience as a designer and developer of large-scale, multi-client web applications, or equivalent senior experience.
Added 1 hour ago
SM
RQ11618 – UX Designer – Junior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Junior UX Designer with experience designing intuitive, user-friendly, and visually appealing digital experiences for web and mobile applications. The ideal candidate will…
Added 1 hour ago
SM
RQ11618 – UX Designer – Junior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Junior UX Designer with experience designing intuitive, user-friendly, and visually appealing digital experiences for web and mobile applications. The ideal candidate will…
Added 2 hours ago
JS
Quality Management System (QMS) Lead
JFE Shoji Power Canada Inc.
Burlington, ON
- $110,000 to $120,000 CAD / year
- Full-time
Position: Quality Management System (QMS) Lead
Added 3 hours ago
JS
Quality Management System (QMS) Lead
JFE Shoji Power Canada Inc.
Burlington, ON
- $110,000 to $120,000 CAD / year
- Full-time
Position: Quality Management System (QMS) Lead
Added 4 hours ago
PT
System Designer - AV
Paladin Technologies
Vancouver, BC
- Full-time
This position is responsible for Audio Visual system design and review of system functionality to determine proper operation of conferencing, audio processing, video distribution, control…
Added 4 hours ago
HT
Mechanical Designer (Fluidpower)
Husky Technologies
Bolton, ON
- Full-time
…product definition into high quality, reliable and cost-effective system level designs ready for detail design…

Maarut

RQ11739 - Software Developer - Full Stack - Senior

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Posting language: English
Posted: Oct 26, 2026

Original job description

Description:

Designs, develops, integrates, tests, deploys, and maintains enterprise platform capabilities across the user-interface, service, API, workflow, integration, and data-access layers. The role builds reusable platform services that can support multiple government programs, while also implementing the service-specific connections required to onboard registries, permitting, forms, payments, notifications, documents, identity, and other business-facing functions. Working with architects, product managers, analysts, UX designers, QA specialists, DevOps engineers, security and privacy teams, and ministry partners, the Senior Software Developer – Full Stack converts approved designs and requirements into secure, scalable, observable, and maintainable software. The role provides technical leadership through design input, estimation, code review, automated testing, troubleshooting, documentation, mentoring, and production support, helping ensure the platform remains stable while evolving through frequent releases and new integrations.

Experience:

Ten or more years of experience designing and developing large-scale, multi-client web applications, or an equivalent depth of senior development experience.
Extensive hands-on Java development experience with Oracle, SQL, or comparable relational database technologies.
Significant experience designing and developing REST APIs and RESTful web services.
Experience translating technical system specifications into working, tested applications, including detailed programming specifications, code development, compilation, debugging, documentation, maintenance, and unit testing.
Knowledge and experience with microservice architecture and applying core architecture principles to improve extensibility and maintainability.
Experience with object-oriented coding practices, current design patterns, refactoring, clean code, and structured development methodologies.
Experience developing Internet-ready applications and using rapid application development or Agile delivery approaches.
Experience with relational and hierarchical database technologies, query languages, SQL tuning, and data-access components.
Experience with security gateways and protocols such as JSON Web Tokens, OAuth 2.0, and SSL certificates.
Experience with middleware, gateways, communications protocols, enterprise integrations, and data migration or conversion activities.
Experience using Azure DevOps or comparable tools for work management, source control, build, testing, and deployment pipelines.
Experience conducting design walkthroughs, code reviews, impact assessments, and technical troubleshooting.
Experience eliciting and documenting information from diverse business stakeholders, subject-matter experts, architects, and other IT professionals.
Experience providing implementation, conversion, migration, and post-implementation support for complex applications.

General Skills / Duties:

Translate approved technical system specifications into working, tested, secure, and maintainable enterprise platform applications.
Develop detailed programming specifications and design, write, generate, compile, debug, document, maintain, and unit test application code.
Design and develop frontend, backend, API, integration, workflow, middleware, and data-access components using approved patterns and standards.
Build and maintain Java-based microservices, REST APIs, RESTful web services, Internet-ready applications, and reusable platform services.
Develop and maintain database objects, queries, data transformations, conversion routines, and integration components using relational or hierarchical database technologies.
Implement security gateways and protocols, including identity, access, token, certificate, and secure communications requirements.
Create and maintain automated unit, integration, API, database, and user-interface tests.
Participate in design walkthroughs, impact assessments, code reviews, estimation, backlog refinement, sprint planning, release planning, and technical decision-making.
Review, analyse, and modify build, configuration, product-installation, and deployment scripts, including coding, testing, and debugging.
Resolve and troubleshoot technical problems arising during development, implementation, conversion, migration, deployment, and operation.
Collaborate with business analysts, architects, UX designers, testers, DevOps engineers, security specialists, and other IT professionals throughout the software development lifecycle.
Provide post-implementation support, resolve production issues, and improve application performance, reliability, extensibility, and maintainability.
Prepare and maintain user, system, technical, deployment, and support documentation.
Provide technical guidance and quality oversight while meeting delivery commitments and adapting to changing priorities.

Requirements

Experience and Skill Set Requirements:

Must Haves:

Ten or more years of experience as a designer and developer of large-scale, multi-client web applications, or equivalent senior experience.
Extensive hands-on Java development experience with Oracle, SQL, or comparable relational databases.
Significant experience with REST APIs, RESTful web services, microservice architecture, and Internet-ready applications.
Experience with security gateways and protocols, including JSON Web Tokens, OAuth 2.0, SSL certificates, secure communications, and identity integration.

Skill Set Requirements:

Core Skills and Experience:

Ten or more years of experience as a designer and developer of large-scale, multi-client web applications, or equivalent senior experience.
Extensive hands-on Java development experience with Oracle, SQL, or comparable relational databases.
Significant experience with REST APIs, RESTful web services, microservice architecture, and Internet-ready applications.
Experience translating specifications into working applications using structured and Agile methods, object-oriented practices, design patterns, clean code, automated testing, and Azure DevOps.

Technical Skills and Experience:

Experience with security gateways and protocols, including JSON Web Tokens, OAuth 2.0, SSL certificates, secure communications, and identity integration.
Strong understanding of Agile methodologies, structured development methods, object-oriented design, current design patterns, refactoring, and clean code.
Experience with relational and hierarchical databases, query languages, SQL tuning, middleware, gateways, communications protocols, conversion, and migration.
Experience with application design, deployment, installation scripts, troubleshooting, post-implementation support, and technical documentation.

Soft Skills:

Strong written and verbal communication, analytical, systematic problem-solving, decision-making, interpersonal, and negotiation skills.
Ability to develop and present ideas, lead or participate in design walkthroughs, and work effectively with functional and technical teams.
Demonstrated ability to perform under pressure, adapt to change, work within aggressive timelines, and consistently meet deadlines.

Public-Sector Experience:

Knowledge of Ontario Public Service development standards, processes, governance, security, accessibility, information-management, and documentation expectations.

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More about this job

Responsibilities

The Senior Software Developer designs, develops, and maintains enterprise platform capabilities across all layers of the software stack. They provide technical leadership through code reviews, mentoring, and collaboration with cross-functional teams to ensure scalable and secure software delivery.

Requirements

Candidates must have ten or more years of experience in large-scale web application development with extensive hands-on Java and relational database expertise. Proficiency in microservice architecture, RESTful APIs, and security protocols is required, along with experience in Agile development environments.

Skills

Java
Oracle
SQL
REST APIs
Microservices
Azure DevOps
OAuth 2.0
JSON Web Tokens
Agile
Object-oriented design
System architecture
Unit testing
Database tuning
Technical documentation
Full stack development
Security protocols

Visa sponsorship

Not detected in the job text

Keywords

Java
Oracle
SQL
REST APIs
Microservices
Azure DevOps
OAuth 2.0
JSON Web Tokens
SSL
Agile
Full Stack
Software Development
Enterprise Platform
Middleware
Database Tuning
Object-Oriented Programming
Design Patterns
Clean Code
Automated Testing
System Architecture
Technical Leadership
Identity Management
Data Access
Web Applications
Ontario Public Service
Security Gateways
Deployment Pipelines
Troubleshooting
Documentation
Mentoring

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