Toronto, On Core backend java developer Jobs – 86 Openings This Week

Full Stack Developer
Kumaran Systems —Toronto, ON
- Full-time
- SQL
- Analysis skills
- Machine learning
3h
Senior Quality Assurance Manager – QE Automation
Royal Bank of Canada —Toronto, ON
- Full-time
- Java
- Team management
- Mentoring
Senior Engineering Manager, Advanced Product Designer (APD)
Guidewire Software —Toronto, ON
- $163,000–$204,000 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- Java
- Dental care
- Paid time off
Technical Lead
Fidelity Investments —Toronto, ON
- $135,000–$152,000 a year
- Full-time
- Computer Science
- Java
- Bachelor's
- Tuition reimbursement
- Paid time off
Lead Security Engineer (Fraud)
US Mobile —Toronto, ON
- $150,000–$220,000 a year
- Hybrid work
- Computer Science
- DevOps
- Engineering
- Flexible schedule
Quick apply
SubLedger QE Strategy Lead
Royal Bank of Canada —Toronto, ON
- Full-time
- Oracle
- DevOps
- Engineering
Sr. Software Engineer, Backend
Pinterest —Toronto, ON
- Hybrid work
- Computer science
- Computer Science
- Java

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Full Stack Developer
Kumaran Systems —Toronto, ON
Design, develop, test, and deploy scalable full-stack applications. Write clean, maintainable, and secure code while adhering to enterprise development…
3h

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core backend java developer jobs near toronto, on

Full Stack Developer

Kumaran Systems -
Toronto, ON

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Job details

Full-time
3 hours ago

Qualifications

Spring Boot
Responsive design
Performance tuning
React
RESTful API
Relational databases
Git
Microservices
SQL
Analysis skills
Machine learning
Containerization
Decision making
Version control systems
Back-end development
Django
Scrum
Financial services
React.js
Unit testing
Flask
AI
Cross-functional collaboration
TypeScript
Communication skills
Debugging
Cross-functional communication

Full job description

Job Information

Department Name

Banking

Date Opened

06/30/2026

Industry

IT Services

Job Type

Full time

Work Experience

5+ years

Required Skills

java

reactjs

+16

City

Toronto

State/Province

Ontario

Country

Canada

Zip/Postal Code

M4C

About Us

Kumaran Systems: Engineering Future-Ready Transformations Since 1992, Kumaran Systems has been helping enterprises bridge the past and the future, reimagining legacy systems and embracing AI-led possibilities. With over 34 years of delivery excellence, we specialise in re-engineering core applications, driving cloud transformation, and building automation-first, GenAI-enabled ecosystems across the Banking and Financial Services, Insurance, Telecom, and Automotive sectors. We help organisations not just upgrade their systems but reimagine what’s possible.

Why Kumaran?

We blend engineering discipline with AI innovation, helping clients modernise with confidence, automate with clarity, and scale with purpose. Our global delivery model ensures agility, responsiveness, and seamless collaboration, with clients always at the heart of every engagement. At Kumaran, we don’t just solve problems, we engineer future-ready transformations.

Job Description

About the Role

Seeking a talented and motivated Full Stack Developer to join our technology team. The ideal candidate will be responsible for designing, developing, and maintaining scalable web applications and enterprise solutions that support the bank's digital transformation initiatives. This role requires strong expertise in both backend and frontend technologies, along with a passion for building high-quality software solutions.

Key Responsibilities

Design, develop, test, and deploy scalable full-stack applications.

Build and maintain RESTful APIs and microservices using Java Spring Boot and Python frameworks.

Develop responsive and user-friendly web interfaces using ReactJS and modern JavaScript/TypeScript.

Collaborate with product owners, architects, business stakeholders, and cross-functional teams to deliver innovative banking solutions.

Write clean, maintainable, and secure code while adhering to enterprise development standards.

Integrate applications with databases and third-party systems.

Participate in code reviews, unit testing, debugging, and performance optimization activities.

Support CI/CD pipelines and DevOps practices to ensure seamless application delivery.

Contribute to solution design discussions and technical decision-making.

Stay current with emerging technologies and recommend improvements to existing systems.

Required Qualifications

Backend Development

Strong hands-on experience in:

Java

Spring Boot

SQL and relational databases

Experience developing REST APIs, microservices, and distributed applications.

Python Development

Experience with one or more Python frameworks:

Fast API

Flask

Django

Ability to build scalable backend services and integrations.

Frontend Development

Strong experience with:

JavaScript

TypeScript

ReactJS

Experience building modern, responsive, and reusable UI components.

Understanding of frontend performance optimization and state management.

Additional Skills

Knowledge of Git and version control best practices.

Experience with Agile/Scrum development methodologies.

Understanding of cloud platforms, containerization, and CI/CD practices.

Strong analytical, problem-solving, and communication skills.

Nice to Have

Exposure to Artificial Intelligence (AI), Machine Learning (ML), or Generative AI technologies.

Willingness and enthusiasm to work on AI-led transformation initiatives.

Experience integrating AI services, LLMs, chatbots, or intelligent automation solutions.

Familiarity with Azure AI, OpenAI, LangChain, vector databases, or related AI ecosystems.

Experience within Banking, Financial Services, or FinTech domains.

Kumaran Systems is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran disability or genetic information or any other reason prohibited by law in employment.

Apply Now

Refine Your Search

core backend java developer jobs in toronto, on

Full Stack Developer

Senior Quality Assurance Manager – QE Automation

Senior Engineering Manager, Advanced Product Designer (APD)

Technical Lead

Lead Security Engineer (Fraud)

SubLedger QE Strategy Lead

Sr. Software Engineer, Backend

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