Senior Java Developer

Kumaran Systems; Toronto; On-site; CAD 140,000 - 190,000; Full time

Job summary

Kumaran Systems, a long‑standing engineering partner, seeks senior Java leaders to drive architecture for enterprise-scale projects. The role demands deep Java expertise, Spring Boot, REST services, and strong experience with asynchronous messaging and cloud platforms.

Responsibilities include design leadership, code sample demonstrations, and DevOps discipline using GitHub, Jenkins, JIRA, and Confluence. Banking domain exposure is a plus for this Toronto‑area opportunity.

Qualifications

• 12+ years of IT experience, Banking domain experience preferred.
• Minimum 5 years of lead experience in a large-scale enterprise.
• Application design experience with low-level design artefacts.
• Proficiency in Java 11/17/21 features and sample code.
• Experience with Spring v5, Spring Boot 3.x, REST frameworks.

Responsibilities

• Lead design and architectural discussions for enterprise solutions.
• Develop and review Java-based applications across services.
• Explain Java features clearly and provide code samples.
• Align APIs with asynchronous messaging using MQ/Kafka.
• Work with Azure Cloud and OpenShift platforms when needed.
• Ensure database integrity with SQL/Oracle and complex queries.
• Apply DevOps practices and tools (GitHub, Jenkins, JIRA, Confluence).
• Define and enforce code branching policies and lifecycle.

Skills

Java

Spring framework

REST APIs

JPA / Hibernate

Async programming

MQ / Kafka

SQL / Oracle

DevOps

Tools

GitHub

Jenkins

Jfrog

JIRA

Confluence

Job description

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.

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.

Roles & Responsibilities

• Minimum 12+ years of IT experience, Banking domain experience is nice to have
• Minimum 5 years of Lead experience in a large‑scale enterprise.
• Have Application design experience, well-versed with low-level design artefacts.
• Java v8, v11 and v21 hand on experience required.
• Should be able to clearly explain Java 11/17/21 features and able to write sample code snippets.
• Spring v5, Spring boot 3.x, Rest API frameworks
• JPA / Hibernate annotations
• Async APIs, Async App development using queuing system (MQ, Kafka, Solace, etc.,)
• MQ or Kafka queue/implementation knowledge
• Async Programming features / Implementation and troubleshooting knowledge
• SQL Database, Oracle Database experience
• Experience in writing complex queries, joins, Views, and Procedures
• Query optimisation knowledge
• Azure Cloud experience (Openshift Platform is nice to have)
• DevOps experience is required
• Basic understanding of DevOps tools like GitHub, Jenkins, Jfrog, JIRA, Confluence etc.,
• Able to clearly explain the Code branching policy/lifecycle.