Markham, On Back end platform developer Jobs – 138 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
Full Stack Developer - (Java, NodeJS, SQL, noSQL), Cloud
Procom —Toronto, ON
- $75–$100 an hour
- Immediate opening
- Hybrid work
- Azure
- Java
- SQL
Quick apply
4d
Developer
Robert Half —Toronto, ON
- $39.59–$45.84 an hour
- Temporary
- JavaScript
- AI
- Communication skills
Quick apply
5d
Back-End Python Developer
Adastra Corporation —Markham, ON
- SQL
- APIs
- Agile
Front-End Developer
Cloud 3D Print —Markham, ON
- Full-time
- Computer Science
- Java
- Bachelor's
Clinical Trial Web Application Developer
Everest Clinical Research —Markham, ON
- $90,000–$125,000 a year
- Computer Science
- Java
- Bachelor's
- Disability insurance
- Dental care
Quick apply
Back End Full Stack Developer
UST Global —Toronto, ON
- $104,000–$130,000 a year
- Temporary
- Azure
- DevOps
- Java
- Life insurance
- Paid sick leave
Consultant, Back End Developer
CIBC —Toronto, ON
- Full-time
- Azure
- Oracle
- Java
4d
Web Developer
Focus Communications —Richmond Hill, ON
- Marketing
- English
- JavaScript
Sr. iOS Developer
KOTEITSP —North York, ON
- $71,401.90–$95,260.32 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- Bachelor's
- Dental care
- Life insurance
Quick apply
Senior Full-Stack Developer
Method Integration Inc. —Toronto, ON
- $100,000–$135,000 a year
- Full-time
- Hybrid work
- Computer Science
- Java
- SQL
- Dental care
- Vision care
Staff Software Engineer - International Card Tech - Full-stack
Capital One - CA —Toronto, ON
- Full-time
- Hybrid work
- Azure
- Computer Science
- Engineering
Senior Mobile Engineer, Agentic Payments
Snaplii —Markham, ON
- $150,000–$200,000 a year
- Full-time
- Azure
- Java
- AWS
- Dental care
- Paid time off
Quick apply
4h
Technical Product Manager
Method Integration Inc. —Toronto, ON
- $90,000–$130,000 a year
- Full-time
- Hybrid work
- ERP systems
- Analysis skills
- Product management
- Dental care
- Vision care
Intermediate Full-Stack Developer
Method Integration Inc. —Toronto, ON
- $70,000–$110,000 a year
- Full-time
- Hybrid work
- Computer Science
- Java
- SQL
- Dental care
- Vision care
Senior iOS Engineer
Apexon —Toronto, ON
- $90,000–$110,000 a year
- Full-time
- Computer Science
- Engineering
- APIs
Quick apply
Staff Back End Engineer (Data Platform)
Forma.ai —Toronto, ON
- Java
- Databases
- SQL
- Disability insurance
- Dental care
Senior Front End Web Developer, GBSG
Intuit —Toronto, ON
- $132,000–$155,200 a year
- JavaScript
- Organizational skills
- Agile
Microsoft Developer-Full-Time-Toronto
Serco North America —Toronto, ON
- Part-time
- Oracle
- Computer Science
- Customer service
12d
Backend Developer
Novasoft Webservices —Toronto, ON
- $60–$65 an hour
- Full-time
- Azure
- DevOps
- Java
Quick apply
6d

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back end platform developer jobs near markham, 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

back end platform developer jobs in markham, on

PL/SQL Developer

Full Stack Developer - (Java, NodeJS, SQL, noSQL), Cloud

Developer

Back-End Python Developer

Front-End Developer

Clinical Trial Web Application Developer

Back End Full Stack Developer

Consultant, Back End Developer

Web Developer

Sr. iOS Developer

Senior Full-Stack Developer

Staff Software Engineer - International Card Tech - Full-stack

Senior Mobile Engineer, Agentic Payments

Technical Product Manager

Intermediate Full-Stack Developer

Senior iOS Engineer

Staff Back End Engineer (Data Platform)

Senior Front End Web Developer, GBSG

Microsoft Developer-Full-Time-Toronto

Backend Developer

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