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Added 5 days ago
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Senior Java Developer (with LLM expertise)
Miratech
Toronto, ON
- Full-time
We are looking for a Senior Java Developer with LLM expertise to lead the technical design, development and integration of core banking application systems for a major financial services…
Added 5 days ago
M
Senior Java Developer (with LLM expertise)
Miratech
Toronto, ON
- Full-time
We are looking for a Senior Java Developer with LLM expertise to lead the technical design, development and integration of core banking application systems for a major financial services…
Added 5 days ago
T
Engineer I
TD
Toronto, ON
- Full-time
We are looking for a motivated Senior Java Developer (Engineer I) to join our Trading Risk Warehouse platform team within TD Securities. The successful candidate will contribute to the…
Added 5 days ago
JG
Springboot Java Developer
J&M Group
Toronto, ON
- Full-time
5+ years of experience developing enterprise applications using Java and Spring Boot.
Added 5 days ago
LI
Software Developer - Senior
Lotus IT Solutions
Toronto, ON
- Contract
The Government Services Integration Cluster, Ministry of Public and Business Service Delivery and Procurement, is seeking a Senior Software Developer to join a multidisciplinary delivery…
Added 5 days ago
LI
Senior Software Developer - Full Stack
Lotus IT Solutions
Toronto, ON
- Contract
The Government Services Integration Cluster (Ministry of Public and Business Service Delivery and Procurement) is seeking a Senior Software Developer – Full Stack to design, develop,…
Added 5 days ago
RB
Senior Manager, Engineer & Build
Royal Bank of Canada
Toronto, ON
- Full-time
Technology focus: Snowflake, Spark, dbt, Airflow, Python/Scala/Java, OpenShift/Kubernetes, and public cloud (e.g., AWS).
Added 5 days ago
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Software Engineer II
Microsoft
Vancouver, BC
- Full-time
Develop and execute feature test strategies, including unit, integration, regression, security, and AI evaluation tests. Use telemetry and evaluation results to help confirm that features…
Added 5 days ago
M
Software Engineer II
Microsoft
Vancouver, BC
- Full-time
Develop and execute feature test strategies, including unit, integration, regression, security, and AI evaluation tests. Use telemetry and evaluation results to help confirm that features…
Added 5 days ago
M
Senior Software Engineer
Microsoft
Vancouver, BC
- Full-time
Define and execute testing strategies for assigned areas, including unit, integration, regression, and security testing, and use automation to improve coverage and prevent regressions.
Added 5 days ago
SM
RQ11657 – Software Developer – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Software Developer / Technical Lead with extensive experience in enterprise application development, Microsoft Dynamics 365, Power Platform, Azure, Dataverse, Java,…
Added 5 days ago
MI
Senior Software Developer (Healthcare)
Maarut Inc
Toronto, ON
- Contract
Hands-on experience with NextGen Connect (Mirth), HL7 v2 message processing, transformation, validation, routing, acknowledgements, and integration with Java services.
Added 5 days ago
MI
DevOPS/Cloud Engineer (Healthcare) 7+ years of experience
Maarut Inc
Toronto, ON
- Contract
Develop and maintain AWS CDK applications in Java for repeatable provisioning of OCRE cloud infrastructure, configuration, permissions, monitoring, and deployment dependencies.
Added 5 days ago
AR
Senior Quality Assurance Analyst
Atlas-Apex Roofing Inc.
Toronto, ON · Greater Toronto Area, Canada
- $85,000 to $105,000 CAD / year
- Full-time
Perform functional, regression, integration, system, and user acceptance testing (UAT).
Added 5 days ago
DW
Maximo Functional Analyst
DP World
Burnaby, BC
- Full-time
Understanding of Maximo integrations and data flows; experience with Oracle Fusion, Maximo Integration Framework, Maximo Mobile, or IoT meter integrations is an asset.
Added 5 days ago
E
MuleSoft Integration Developer
Experis
Calgary, AB
- Contract
We are looking for an experienced MuleSoft Integration Developer with strong expertise in MuleSoft Anypoint Platform, API development, and ESB-based integrations to design, develop, and…
Added 5 days ago
RA
Software Engineering Intern - Connected Systems (Summer 2027)
Rivian and Volkswagen Group Technologies
Remote, Canada
- $30 to $33.75 CAD / hour
- Internship
- Remote
Software Engineering Intern - Software Integration
Added 5 days ago
RA
Software Engineering Intern - Applications (Summer 2027)
Rivian and Volkswagen Group Technologies
Remote, Canada
- $30 to $33.75 CAD / hour
- Internship
- Remote
Software Engineering Intern - Android Developer
Added 5 days ago
SS
DevOps III, FME Flow
Safe Software
Canada
- Full-time
Experience with Web Application Development (e.g. Java, Javascript)
Added 5 days ago
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Quality Engineer II
TD
Toronto, ON
- Full-time
Strong working knowledge of Java – Ability to write code/ functions for complex scenarios, integration points and supporting multiple technologies (legacy and digital) (5 years)
Added 5 days ago
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AI Data Engineer
Citi
Mississauga, ON
- Full-time
Data Engineering & Integration: Design and develop data pipelines supporting AI and machine learning workloads. Ensure data quality, lineage, governance, and security requirements are met.
Added 5 days ago
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Software Engineer II (Backend _ Java)
Mastercard
Vancouver, BC
- Full-time
Software Engineer II (Backend _ Java)Who is Mastercard?
Added 5 days ago
M
Software Engineer II (Backend - Java)
Mastercard
Vancouver, BC
- Full-time
Software Engineer II (Backend - Java)Who is Mastercard?
Added 5 days ago
BS
Lead Java Developer
BULL-IT SOLUTIONS LTD
Mississauga, ON
- Full-time
We are seeking an experienced Java Developer with strong expertise in enterprise application development, microservices architecture, API development, and distributed systems. The candidate…
Added 5 days ago
AI
Site Reliability Engineer (SRE) – Java, Spring Boot & Guidewire (GW)
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
API Design, Integration, and Security: OpenAPI/Swagger, JSON Schema, Apigee or another API gateway, API Developer Portal, OAuth 2.0, JWT, mTLS, or certificate-based security.

Lotus IT Solutions

Senior Software Developer - Full Stack

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 21, 2026
Experience: 10+ years of experience designing and developing large-scale, multi-client web applications, or equivalent depth of senior development experience.
Posting language: English
Posted: Oct 22, 2026

Original job description

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Ref: RQ11737 Contract – 11 Months (Extension Possible) Onsite – Toronto (222 Jarvis St. 5th Floor)

Posted Date: 2026-10-22

Location: Onsite – Toronto (222 Jarvis St. 5th Floor)

Public Sector Experience: Required – OPS / Public Sector

Contract End Date: 2027-09-28 *

Rate: $103/hour

Overview

The Government Services Integration Cluster (Ministry of Public and Business Service Delivery and Procurement) is seeking a Senior Software Developer – Full Stack to design, develop, integrate, test, deploy, and maintain enterprise platform capabilities across the full technology stack. Working alongside architects, product managers, UX designers, QA specialists, DevOps engineers, and ministry partners, the successful consultant will build secure, scalable, and maintainable platform services that support multiple government programs and enable the onboarding of registries, permitting, payments, notifications, identity, and other business-facing functions.

Key Responsibilities

Translate approved technical system specifications into working, tested, secure, and maintainable enterprise platform applications.
Design, write, compile, debug, document, and unit test application code; develop detailed programming and design specifications.
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 management, JSON Web Tokens, OAuth 2.0, SSL certificates, and secure communications.
Create and maintain automated unit, integration, API, database, and user-interface tests.
Participate in design walkthroughs, code reviews, impact assessments, estimation, backlog refinement, sprint planning, and technical decision-making.
Review, analyse, and modify build, configuration, and deployment scripts, including coding, testing, and debugging.
Resolve and troubleshoot technical problems arising during development, implementation, deployment, and production operations.
Collaborate with business analysts, architects, UX designers, testers, DevOps engineers, and security specialists throughout the software development lifecycle.
Prepare and maintain user, system, technical, deployment, and support documentation, and provide post-implementation and production support.

Must-Have Requirements

10+ years of experience designing and developing large-scale, multi-client web applications, or 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, RESTful web services, and microservice architecture.
Experience developing Internet-ready applications using Agile delivery approaches and structured development methodologies.
Experience with object-oriented coding practices, current design patterns, refactoring, and clean code principles.
Experience translating technical system specifications into working applications, including programming, compilation, debugging, documentation, and unit testing.
Experience with relational and hierarchical database technologies, SQL tuning, and data-access components.
Experience with security gateways and protocols including JSON Web Tokens, OAuth 2.0, and SSL certificates.
Experience with middleware, 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.

Nice-to-Have Skills

Experience eliciting and documenting requirements from diverse business stakeholders, subject-matter experts, architects, and IT professionals.
Experience providing implementation, conversion, migration, and post-implementation support for complex enterprise applications.
Strong written and verbal communication, analytical, problem-solving, and interpersonal skills with the ability to lead or participate in design walkthroughs.

Work Environment

This is a fully onsite role based at 222 Jarvis St., 5th Floor, Toronto, Ontario (5 days per week onsite). No security clearance is required. The team follows Agile delivery practices and collaborates closely across development, architecture, QA, DevOps, and ministry stakeholder groups throughout the software development lifecycle.

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Final role details, responsibilities, and terms will be confirmed with shortlisted candidates. Compensation may vary based on experience. Errors and omissions excepted.

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More about this job

Responsibilities

Design, develop, test, deploy, and maintain secure, scalable full-stack enterprise platform applications, including Java microservices, REST APIs, integrations, and database components. Collaborate across development and ministry teams on technical design, code reviews, troubleshooting, documentation, and production support.

Requirements

Requires 10+ years of senior development experience, extensive hands-on Java and relational database experience, and strong expertise in REST APIs, microservices, security protocols, and enterprise integrations. Candidates must also have experience with Agile delivery, automated testing, Azure DevOps or comparable tools, technical reviews, and troubleshooting.

Skills

Java
Oracle
SQL
REST APIs
Microservices
Relational Databases
Hierarchical Databases
JSON Web Tokens
OAuth 2.0
SSL Certificates
Azure DevOps
Agile Delivery
Object-Oriented Programming
Enterprise Integration
Automated Testing
CI/CD Pipelines

Visa sponsorship

Not detected in the job text

Keywords

Java
Oracle
SQL
REST APIs
RESTful Web Services
Microservices
Enterprise Applications
Full-Stack Development
Frontend Development
Backend Development
Relational Databases
Hierarchical Databases
SQL Tuning
JSON Web Tokens
OAuth 2.0
SSL Certificates
Azure DevOps
Agile
Object-Oriented Programming
Design Patterns
Clean Code
Automated Testing
CI/CD Pipelines
Middleware
Enterprise Integration
Data Migration
Data Conversion
Government Services
Public Sector
Production Support

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