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Added 1 hour ago
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L2 Duty Technical Support Engineer
Sippy Software, Inc.
Canada
- Contract
Sippy Software, Inc. is a leading developer of carrier grade (class 4 / 5) softswitch technology for next generation Internet Telephony (VoIP) providers.
Added 3 hours ago
MD
Artificial Intelligence (AI) Support Developer - Information Technology Spec 3
Minnesota Direct Care and Treatment
Saint-Paul, NB · St.-Paul, NB
- Full-time
Working Title: Artificial Intelligence (AI) Support Developer
Added 3 hours ago
PH
Intermediate Software Developer
Propel Holdings
Toronto, ON
- Full-time
5-7 years of hands-on experience as a software developer (Java + Spring Boot + Hibernate/JPA + REST)
Added 3 hours ago
PH
Analytics Engineer, Risk
Propel Holdings
Toronto, ON
- Full-time
…stable production data. You’ll work primarily in Python and SQL with tabular, time-series, and, as we grow, graph-structured data such as…
Added 3 hours ago
BI
Business Analyst
BALLY’S INTRALOT SA
Sault Ste. Marie, ON
- Full-time
Understanding of databases, SQL concepts, application testing, and operational readiness activities.
Added 4 hours ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Database querying and transformation: dbt, SQL (writing queries, joins, stored procedures)
Added 5 hours ago
AS
Full Stack Designer /Developer
Apex Systems
Toronto, ON
- $55 to $80 USD / hour
- Contract
We are seeking an Expert Full Stack Developer to design, build, and maintain both front-end interfaces and back-end systems, including APIs, microservices, databases, and cloud deployments.…
Added 5 hours ago
C
Java Azure Developer (Supply Chain Applications)
Cognizant
Mississauga, ON
- $57,600 to $105,000 CAD / year
- Full-time
We are seeking a Java Azure Developer (Supply Chain Applications) to join our team in Mississauga, Ontario. In this hybrid role, you will design, develop, and optimize enterprise…
Added 5 hours ago
ST
Senior IT Systems Specialist
Saltworks Technologies
Richmond, BC
- $110,000 to $140,000 CAD / year
- Full-time
Administer enterprise software, including SQL/PostgreSQL, SYSPRO, EPLAN, ARAS PLM, GitLab, and other business-critical systems.
Added 5 hours ago
BT
Full-Stack Developer (1-Year Contract)
Baker Tilly Canada
Vancouver, BC
- Contract
We are seeking a Full-Stack Developer with a strong passion for user experience, modern interface design, and application development. The successful candidate will be responsible for…
Added 5 hours ago
S
Application Support Engineer (Front Office)
Synechron
Mississauga, ON
- Full-time
Diagnose and validate data issues using SQL (reconciliation, break analysis, anomaly identification) to isolate root symptoms and accelerate resolution.
Added 5 hours ago
EI
Software Engineer
Ecolab Inc.
Calgary, AB
- Full-time
Work with databases, write SQL queries, and verify data accuracy across connected systems.
Added 7 hours ago
LI
Systems Testing/QA Specialist
Lotus IT Solutions
Toronto, ON
- Contract
Strong understanding of relational databases such as SQL and Oracle, including ability to write queries for data validation and backend testing.
Added 7 hours ago
LI
Software Developer
Lotus IT Solutions
Toronto, ON
- Contract
…Service Delivery and Procurement, is seeking a Senior Software Developer to join their team onsite in Toronto. The successful candidate will be responsible for designing, developing, and…
Added 7 hours ago
LI
Software Developer - API
Lotus IT Solutions
Toronto, ON
- Contract
…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…
Added 7 hours ago
LI
Software Developer - Back End
Lotus IT Solutions
Toronto, ON
- Contract
…Delivery and Procurement) is seeking a Senior Back End Software Developer for an onsite engagement in Toronto. The successful candidate will be responsible for designing, developing, and…
Added 8 hours ago
TA
Sr. Analytics Consultant
Tiger Analytics
Canada
- Full-time
Perform hands-on data exploration, feature analysis, and data profiling using SQL and Python
Added 8 hours ago
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Oracle Fusion Financial Engineer - Subscriptions, Billing & Revenue
Lime
Remote, Canada
- $102,000 to $143,000 CAD / year
- Full-time
- Remote
Strong SQL or PL-SQL skills and experience bu

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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