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Added 8 mins ago
Program Manager, Public Works
Regional Municipality of Wood Buffalo
Fort McMurray, AB
We strive to make our hiring process accessible to all candidates. If you require accommodation for the interview or any other part of the application process, please let us know.
Added 23 mins ago
Senior AI Applied Value Architect
Celonis
Canada
The Role: As a Senior AI Applied Value Architect, you will spearhead AI and data-driven business transformation supporting customers in North America, by contributing to your customer’s…
Added 23 mins ago
M
Senior Software Engineer - Credit Commercial Engineering
Marqeta
Remote, Canada
- Full-time
- Remote
Marqeta is seeking a skilled Senior Software Engineer to contribute to the design and delivery of software solutions on our Credit Commercial Engineering Team. In this role, you will take…
Added 1 hour ago
ST
Senior IT Systems Specialist
Saltworks Technologies
Richmond, BC
- $110,000 to $140,000 CAD / year
- Full-time
Saltworks Technologies has an immediate opening for a Senior IT Systems Specialist. You will own our technology infrastructure, from on-premises servers and cloud platforms to enterprise…
Added 2 hours ago
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IT Operations Lead
Giatec Scientific Inc.
Ottawa, ON
- Full-time
We're looking for an IT Operations Lead who believes great IT is invisible: people get what they need, it just works, and it's secure without getting in anyone's way. You'll lead IT at a…
Added 3 hours ago
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Finance Director
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- $70 to $75 CAD / hour
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Lead and support monthly, quarterly, and annual financial close processes, ensuring timely and accurate completion.
Added 4 hours ago
LI
Software Developer - API
Lotus IT Solutions
Toronto, ON
- Contract
…and Business Service Delivery and Procurement) is seeking a Senior Software Developer – API to join their team onsite in Toronto. In this role, you will design, develop, and maintain…
Added 4 hours ago
OT
Principal Systems Architect (Copilot Architect)
Open Text Corporation
Mississauga, ON · Richmond Hill, ON · Waterloo, ON
- Other
…architecture, development, and deployment direction of sustainable technical and application solutions. You will translate complex business requirements into target architectures, lead…
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Senior DevOps Engineer
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Lead significant platform improvements with a high degree of ownership, from understanding the problem and evaluating options through implementation, rollout, adoption, and ongoing…
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Advisor, Water and Wastewater Strategic Infrastructure Planning
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Lead the development of various asset management improvement initiatives identified in the maturity road map, presenting recommendations to senior leadership and Council for approval.
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We are seeking an experienced Director, FinOps (Cloud Financial Management) to build, lead, and mature an enterprise FinOps program focused on delivering measurable and sustainable cloud…
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Senior Consultant - Cybersecurity, Strategy & Transformation
KPMG
Vancouver, BC · Victoria, BC
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Our Vancouver/Victoria team is looking for a highly motivated Cyber Security professionals at the Senior Consultant level to join our team! As a member of KPMG Canada’s cross-functional…
Added 6 hours ago
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DevOps Team Lead
Pixieset
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- Full-time
We’re hiring a DevOps Team Lead to lead our DevOps team's day-to-day planning and delivery while staying hands-on in the engineering work. You'll bring clarity to priorities and ownership,…
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Senior Engineering and Delivery Lead
Citi
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We are seeking a seasoned, highly experienced, and motivated Senior Engineering and Delivery Lead to spearhead the end-to-end execution and technology delivery of regulatory reporting…
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Director, Measurement & Analytics
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- Full-time
We are seeking a director to support and contribute to our Measurement & Analytics (M&A) team. Reporting to the Senior Director of the M&A consulting practice within Flywheel’s Commerce…
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Financial Services Regulatory Authority of Ontario (FSRA)
Toronto, ON
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To lead and provide oversight of FSRA’s Fraud Reporting Service (FRS), advances fraud supervision initiatives, and acts as FSRA’s lead regulatory liaison on fraud issues. Collaborating with…
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Senior Enterprise Information Data Architect (35902)
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Communicate complex information and data architecture concepts clearly to both technical and senior stakeholders.
Added 7 hours ago
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Senior/Staff Software Engineer - Tech Lead
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Remote, Canada
- $126,000 to $188,000 USD / year
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We're looking for a Senior / Staff Software Engineer to join OpenMined, a nonprofit building open-source infrastructure for federated AI.
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Senior Research Associate, Cardiac Sciences
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…Investigator to determine the course of the group. They will provide technical expertise and lead research projects to support research work in the group. The associate will perform complex…
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Senior Cybersecurity Test Engineer (35651)
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We are seeking a Senior Cybersecurity Test Engineer to lead and execute security testing activities across applications, infrastructure, cloud environments, APIs, and system integrations.…
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Senior Dynamics 365 F&O Functional Advisor Architect (36149)
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…to operate at an architecture and advisory level, present to senior executives, lead functional workshops, configure the platform, and translate business requirements into scalable D365…
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Division Manager – Environmental Services, Site Assessment & Remediation
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As a senior professional, you will continue to build and lead a team of skilled professionals while working with technical staff on a variety of environmental projects across several…

Lotus IT Solutions

Software Developer - API

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 29, 2026
Posting language: English
Posted: Oct 30, 2026

Original job description

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Ref: RQ11528 Contract – 12 Months (Extension Possible) Onsite – Toronto (222 Jarvis St.)

Posted Date: 2026-10-30

Location: Onsite – Toronto (222 Jarvis St.)

Public Sector Experience: Required – OPS / Public Sector

Contract End Date: 2027-10-01 *

Rate: $99/hour

Overview

The Government Services Integration Cluster (Ministry of Public and Business Service Delivery and Procurement) is seeking a Senior Software Developer – API to join their team onsite in Toronto. In this role, you will design, develop, and maintain enterprise-grade REST API platforms and integration solutions that connect critical government systems. You will play a key role in translating technical specifications into robust, tested applications across complex multi-client environments.

Key Responsibilities

Translate technical systems specifications into working, tested applications including developing detailed programming specifications, writing and generating code, and conducting unit tests
Design and develop REST API platforms using tools such as Apigee, IBM API Connect, IBM App Connect Enterprise (ACE), MuleSoft, or Azure API Management (APIM)
Convert web services between SOAP and REST formats as required by project needs
Implement API gateway policies including rate limiting, throttling, transformation, caching, logging, and request/response modifications
Integrate APIs with enterprise platforms such as Microsoft SharePoint, Microsoft Dynamics CRM, Siebel, and Curam
Apply API security best practices including OAuth 2.0, JWT, API keys, and TLS across all integration layers
Manage the full API lifecycle including versioning, testing, deployment, and monitoring
Create and maintain REST API documentation using Swagger, OpenAPI specifications, and YAML
Troubleshoot and resolve technical problems arising during software operation, implementation, conversion, and migrations
Collaborate with cross-functional teams including business analysts, QA, developers, and product owners throughout the Software Development Life Cycle
Facilitate technical discussions, lead design walkthrough sessions, and provide knowledge transfer to internal staff
Support applications through system integration, test planning, scripting, and troubleshooting activities

Must-Have Requirements

10+ years of experience as a designer and developer in large-scale multi-client web applications
10+ years of hands-on Java development experience with Oracle or SQL databases
5+ years of hands-on experience with REST APIs and RESTful Web Services
5+ years of experience in API development, integration design, and implementation in complex enterprise environments
Solid knowledge of security gateways and protocols including JWT, OAuth 2.0, and SSL Certificates
Proven experience delivering solutions using IBM API Connect, IBM App Connect Enterprise (ACE), MuleSoft, or Azure API Management (APIM)
Strong understanding of RESTful API design, event-driven architecture, and microservices
Experience implementing API gateway policies (rate limiting, throttling, transformation, logging)
Deep understanding of OpenAPI (Swagger) specifications and API documentation standards
Solid understanding of Agile methodologies
Excellent analytical, problem-solving, and decision-making skills with strong verbal and written communication abilities

Nice-to-Have Skills

Experience creating REST API documentation using Swagger and YAML or similar tools
Experience with integration frameworks such as MuleSoft or Apache Camel
Familiarity with containerization technologies (Docker) and orchestration tools (Kubernetes)
Knowledge and experience with programming Internet-ready applications
Experience with middleware, ESBs, and enterprise integration patterns including synchronous/asynchronous messaging, pub/sub, and message queues
Knowledge and understanding of Accessibility for Ontarians with Disabilities Act (AODA) and related regulations and standards
Experience with OPS IT project and architectural governance
Knowledge of OPS Digital, accessibility, and cybersecurity standards
Experience in rapid application development (RAD) methodologies

Work Environment

This is a fully onsite role based at 222 Jarvis St., Toronto, Ontario, five days per week. The team operates using Agile methodologies and collaborates closely with cross-functional stakeholders across the Ministry of Public and Business Service Delivery and Procurement. No security clearance is required for this engagement.

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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, and maintain enterprise REST API platforms and integrations connecting government systems, including implementing gateway policies, security, and API documentation. Manage the API lifecycle and troubleshoot integrations while collaborating with cross-functional teams on design, testing, deployment, and knowledge transfer.

Requirements

Requires 10+ years of experience developing large-scale multi-client web applications and hands-on Java development with Oracle or SQL databases, plus at least five years of REST API and enterprise integration experience. Candidates must have experience with an API management platform such as IBM API Connect, IBM App Connect Enterprise, MuleSoft, or Azure API Management, and strong knowledge of API security, design, documentation, and Agile methods.

Skills

Java
REST APIs
API Development
API Integration
IBM API Connect
IBM App Connect Enterprise
MuleSoft
Azure API Management
OAuth 2.0
JWT
OpenAPI
Swagger
Oracle
SQL
Microservices
Agile Methodologies

Visa sponsorship

Not detected in the job text

Keywords

Java
Oracle
SQL
REST APIs
RESTful Web Services
SOAP
IBM API Connect
IBM App Connect Enterprise
MuleSoft
Azure API Management
Apigee
OAuth 2.0
JWT
TLS
SSL Certificates
API Gateway Policies
OpenAPI
Swagger
YAML
Microservices
Event-Driven Architecture
SharePoint
Microsoft Dynamics CRM
Siebel
Curam
Docker
Kubernetes
Apache Camel
Agile
AODA

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