Mississauga, On Api developer Jobs – 324 Openings This Week

PL/SQL Developer
CMiC —Toronto, ON
- $70,000–$115,000 a year
- Full-time
- Hybrid work
- Oracle
- Java
- SQL
- Wellness program
- Dental care
Quick apply
Developer GIS
Survalent —Mississauga, ON
- $90,000–$120,000 a year
- Full-time
- Computer science
- Azure
- Computer Science
3d
Software Developer III
Moneris Solutions —Toronto, ON
- $85,000–$119,000 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- Engineering
- Profit sharing
- Paid time off
Senior Software Developer
Moneris Solutions —Toronto, ON
- $100,000–$142,000 a year
- Full-time
- Hybrid work
- Software development
- APIs
- Agile
- Profit sharing
- Paid time off
Senior Full-Stack Developer
Method Integration Inc. —Toronto, ON
- $110,000–$140,000 a year
- Full-time
- Hybrid work
- AWS
- QuickBooks
- APIs
- Dental care
- Vision care
Application Developer
YM Inc. —North York, ON
- From $60,000 a year
- Full-time
- Computer Science
- Windows
- SQL
- Store discount
- Dental care
Quick apply
Full Stack Developer
Procom —Toronto, ON
- $62.25–$83.00 an hour
- Immediate opening
- Hybrid work
- Computer Science
- Databases
- Bachelor's
Quick apply
3d
Senior Software Engineer, CMS (Modernization of Registry)
AutoTrader.ca —Toronto, ON
- $140,000–$190,000 a year
- Databases
- AWS
- APIs
- Employee assistance program
Senior Software Engineer, CMS (Modernization of Registry)
autoTRADER.ca —Toronto, ON
- $140,000–$190,000 a year
- Databases
- AWS
- APIs
- Employee assistance program
Lead Backend Developer (Java/Spring Boot, API Architecture)
Recrute Action Inc. —Toronto, ON
- $77–$93 an hour
- Temporary
- Hybrid work
- Java
- Bachelor's
- APIs
- Work from home
Quick apply
3d
iSeries Developer - ACBS
ISG Search Inc —Toronto, ON
- Full-time
- Hybrid work
- DevOps
- Java
- Databases
Quick apply
5d
Senior Java Integration Developer (REST APIs)
Recrute Action Inc. —Toronto, ON
- $70–$90 an hour
- Temporary
- Hybrid work
- Azure
- Java
- AWS
- Work from home
Quick apply
3d
.NET Developer
Rentsync —Toronto, ON
- $80,000–$90,000 a year
- Full-time
- APIs
- AI
Quick apply
Flutter Developer
SysDataTek —Toronto, ON
- APIs
software developer
Toronto Sun Wah Trading Ltd —Etobicoke, ON
- $78,000 a year
- Part-time
- Computer science
- ERP systems
- English
4d
mobile applications developer
Sai Technical Solutions Inc. —Mississauga, ON
- $48.50 an hour
- Full-time
- English
- Java
- AWS
AWS API Developer
Capgemini —Mississauga, ON
- Computer Science
- Engineering
- AWS
- Disability insurance
- Dental care
1d
.NET Developer – Healthcare IT - SJCAN
NavitasPartners —Mississauga, ON
- From $25 an hour
- APIs
- Epic
Quick apply
9d
Full-Stack E-Commerce Developer
Obsidian Glass Hardware —Mississauga, ON
- $23–$30 an hour
- Full-time
- CRM software
- Sales
- ERP systems
Quick apply
3d
Java Developer
Recutify Inc. —Mississauga, ON
- Full-time
- DevOps
- Java
- SQL
Quick apply
11d

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api developer jobs near mississauga, on

PL/SQL Developer

CMiC -
Toronto, ON

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Job details

Full-time
$70,000–$115,000 a year

Qualifications

Spring Boot
CI/CD
Authentication
Performance tuning
Oracle
XML
Database development
Git
Java
SQL
OOP
Analysis skills
REST
Scrum
GitHub
APIs
Agile
JSON
Business requirements
PL/SQL
Jenkins
Communication skills
Spring framework

Full job description

About CMiC

Headquartered in Toronto, CMiC is a software company focused on the Construction industry. We have built a comprehensive platform for construction companies to manage their most important workflows. Our customers have their choice of a SaaS or Private Hosted platform that includes industry focused modules to manage everything from Financials and Payroll to Project Management and Budgeting. Our market share is very strong in North America and rapidly expanding internationally in regions like Europe, Southeast Asia and the Middle East.

Job Overview

We are seeking a Back-End Developer with deep expertise in Oracle PL/SQL and experience in Java-based REST API development. This role will focus primarily on database development with additional responsibilities in API development and integration. Strong analytical thinking and problem-solving skills are essential to succeed in this role.

Important Information:

The overall hiring salary range for this position from Intermediate to Senior level, is $70,000 to $115,000 annually
This position is for an existing vacancy
We do not use AI to screen, assess, or select applicants

Duties & Responsibilities

Oracle / PL-SQL

Advanced PL/SQL development (packages, procedures, functions, triggers)
Strong SQL skills (complex joins, subqueries, performance tuning)
Query optimization and execution plan analysis
Data modeling (normalized/denormalized schemas)
Bulk processing and efficient data handling techniques
Use of Oracle development tools (PL-SQL Developer, TOAD, SQL*Plus)
Error handling, exception management, and logging
Working with large datasets and high-volume transactional systems

API Development

Object oriented programming
Java programming
RESTful API design and implementation
Java backend development (Java 8+ preferred)
Spring / Spring Boot framework (Nice to have)
API documentation (Swagger/OpenAPI)
JSON/XML data handling
Secure API development (OAuth2, JWT, basic authentication)

Nice to Have

IntelliJ experience
Oracle JDeveloper experience
CI/CD pipelines (Jenkins, GitHub Actions)
Database design principles and data architecture
Transaction management and concurrency control
API lifecycle management and versioning strategies
Software development lifecycle (SDLC)
Secure coding practices
Data integrity and validation techniques
Version control systems (Git)

Requirements

3–7+ years in backend development
Significant hands-on experience with Oracle database development
Proven experience developing and maintaining PL/SQL code in enterprise environments
Experience building and consuming REST APIs in Java
Exposure to system integration across multiple applications
Experience in performance tuning and troubleshooting production issues
Working in Agile/Scrum environments

Analytical Skills

Strong problem-solving and root-cause analysis abilities
Ability to analyze complex data flows and system dependencies
Debugging and troubleshooting complex database and API issues
Translating business requirements into efficient technical solutions
Identifying performance bottlenecks and optimizing solutions
Data-driven decision-making mindset

Attitudes and Aptitudes

Detail-oriented, especially with data accuracy and integrity
Ownership mindset with accountability for deliverables
Continuous learning (especially evolving database and API technologies)
Proactive in identifying issues and proposing improvements
Collaborative team player with good communication skills
Adaptable to changing priorities and requirements
Quality-focused with emphasis on maintainability and scalability
Logical reasoning and structured thinking
Strong attention to detail (critical for database work)
Ability to work with abstract data models and complex logic
Capability to manage both deep backend processing and API layers

Benefits

Competitive benefits Package (including Health & Dental benefits)
Paid vacation and personal days
Townhall meetings where all employees are encouraged to participate in open discussions
Located on York University’s campus, easily accessible by transit (TTC, GO, etc.), walking distance to shopping and restaurants
Outdoor lunch space, including picnic tables
An active Social Events Committee (past events include annual seasonal parties, pool and bowling tournaments, karaoke nights, Game nights, BBQ’s, and more)
Health and Wellness focus including virtual yoga classes and wellness webinars
RRSP Matching Program after 2 years of employment
Experience in a rapidly growing, socially responsible corporation

CMiC is an Equal Opportunity Employer. In accordance with the Accessibility for Ontarians with Disabilities Act, 2005 and the Ontario Human Rights Code, CMiC will provide accommodation to applicants with disabilities throughout the recruitment, selection and/or assessment process. If selected to participate in the recruitment, selection and/or assessment process, please inform Human Resources staff of the nature of any accommodation(s) that you may require.

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Refine Your Search

api developer jobs in mississauga, on

PL/SQL Developer

Developer GIS

Software Developer III

Senior Software Developer

Senior Full-Stack Developer

Application Developer

Full Stack Developer

Senior Software Engineer, CMS (Modernization of Registry)

Senior Software Engineer, CMS (Modernization of Registry)

Lead Backend Developer (Java/Spring Boot, API Architecture)

iSeries Developer - ACBS

Senior Java Integration Developer (REST APIs)

.NET Developer

Flutter Developer

software developer

mobile applications developer

AWS API Developer

.NET Developer – Healthcare IT - SJCAN

Full-Stack E-Commerce Developer

Java Developer

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