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Added 4 days ago
B
Senior Integration Specialist
Bevertec
Toronto, ON
- Contract
Ability to manage database systems and query languages
Added 4 days ago
CO
Temporary Solutions Integration Specialist (up to 8 months)
City of Saint John
Saint John, NB
- Temporary
…by monitoring all essential components of the application or database, establishing effective working relationships with vendors and communicating with the IT…
Added 4 days ago
AI
PL/SQL Developer
AllianceIT Inc
Montreal, QC
- Contract
Strong expertise in Oracle PL/SQL development, including:
Added 4 days ago
IS
PL/SQL Developer (Unix & DB2)
ITMC Systems, Inc
Montreal, QC
- Contract
We are seeking an experienced PL/SQL Developer with strong Unix/Linux and DB2 database skills to join our team. The ideal candidate will be responsible for designing, developing,…
Added 4 days ago
SI
PL/SQL Developer with Unix & DB2 - Canada
Saransh Inc
Montreal, QC
- Contract
We are seeking an experienced PL/SQL Developer with strong Unix/Linux and DB2 database skills to join our team.
Added 4 days ago
C
Software Developer
Cliniconex
Ottawa, ON · Kanata, ON
- Full-time
Position: Software Developer (Agentic AI & Automation) - Entry Level/Intermediate
Added 4 days ago
DI
Senior Integration Developer - EDI & .NET Core
Delmar International Inc.
Montreal, QC
- Full-time
Solid SQL and database experience; Oracle experience is an asset.
Added 4 days ago
ET
PL/SQL Developer
Envision Technology Solutions
Montreal, QC
- Contract
We are seeking an experienced PL/SQL Developer with strong Unix/Linux and DB2 database skills to join our team. The ideal candidate will be responsible for designing, developing,…
Added 4 days ago
WT
Python & Database Engineer
Wissen Technology
Montreal, QC
- Full-time
We are seeking a Python & Database Engineer with 3–5 years of hands‑on experience in building scalable applications, optimizing databases, and developing automation solutions. The ideal…
Added 4 days ago
C
Senior Java Full Stack Developer
Citi
Mississauga, ON
- Full-time
The JAVA Full Stack Senior Developer role is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and…
Added 4 days ago
DI
Senior Integration Developer - EDI & .NET Core
Delmar International Inc.
Montreal, QC
- Full-time
Solid SQL and database experience; Oracle experience is an asset
Added 4 days ago
M
RQ11598 - Software Developer - Senior
Maarut
Toronto, ON
- Contract
Additional Skills for Oracle Software Developer:
Added 4 days ago
C
Software Developer (Agentic AI & Automation) - Entry Level/Intermediate
Cliniconex
ON · Kanata, Ontario
- Full-time
Position: Software Developer (Agentic AI & Automation) - Entry Level/Intermediate
Added 4 days ago
TC
Financial Analyst
TJX Canada – Winners, Marshalls, HomeSense
Mississauga, ON
- $61,582.5 to $86,215.5 CAD / year
- Full-time
Proven experience with inventory accounting, data analytics and database design concepts to support financial and business initiatives.
Added 4 days ago
M
RQ11556 - Software Developer - Full Stack - Senior
Maarut
Toronto, ON
- Contract
Experience with relational and hierarchical database technologies
Added 4 days ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
5+ year demonstrable experience working with modern ERP environments and related business process domains (e.g. Dynamics 365, Oracle Fusion, Workday, SAP)
Added 4 days ago
Systems Analyst II
City of Vancouver
Vancouver, BC
Stays current with developments in advanced analytics, programming languages, data modeling, integration tools, database technologies, data visualization tools, techniques, and best design…
Added 4 days ago
M
RQ11657 - Software Developer - Senior
Maarut
Toronto, ON
- Contract
3 years in a Technical Lead, Lead Developer, or Solution Lead role.
Added 4 days ago
C
Application DBA-EN
CAE
Halifax, NS
- Full-time
Install and configure database software, listeners, instances, and related components, including support for Oracle multitenant container and pluggable database environments as they are…
Added 4 days ago
SM
RQ11775 – Software Developer – Senior
S M Software Solutions Inc
Toronto, ON
- Full-time
Provide technical expertise in database systems, including Oracle, SQL Server, and PL/SQL.
Added 4 days ago
ES
Senior Java Developer
Epsilon Solutions Ltd.
Toronto, ON
- Contract
Role Name: Senior Java Developer / Technical Lead
Added 4 days ago
MI
DataOps/Cloud Data Engineer - Senior
Maarut Inc
Toronto, ON
- Contract
Relational databases (Oracle, MySQL, SQL Server), data modelling (relational & dimensional), advanced SQL, query optimization, data replication, administration.
Added 4 days ago
C
Data Application Developer
CIBC
Toronto, ON
- Full-time
…data solutions that help power the bank. As a Data Application Developer, you’ll design, develop, test, and enhance applications across a range of technology platforms, translating business…
Added 4 days ago
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Oracle DBA / Toronto, ON (Onsite) - FTE
AceStack
Toronto, ON
- Full-time
We are seeking an experienced Oracle Database Administrator (DBA) with strong expertise in Oracle Database Administration, advanced PL/SQL development, database performance tuning, and AWS…
Added 4 days ago
TT
Senior Java / J2EE Developer
Tamanna Technology
Toronto, ON · Greater Toronto Area, Canada
- Contract
Database Management: Write, optimize, and maintain complex SQL queries, stored procedures, and database schemas using relational databases (e.g., Oracle, PostgreSQL, MySQL, SQL Server).

Epsilon Solutions Ltd.

Senior Java Developer

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 20, 2026
Posting language: English
Posted: Oct 21, 2026

Original job description

Role Name: Senior Java Developer / Technical Lead

Location: Toronto / 4 days a week on site

, F2F interview required

Role Overview

We are seeking a Senior Java Developer / Technical Lead to design and deliver secure, scalable, and high-volume banking and payment applications. The role will lead the development of Java and Spring Boot microservices, REST APIs, event-driven services, batch-processing capabilities, and containerized workloads across cloud and enterprise platforms.

The selected candidate will provide technical leadership across solution design, application development, code quality, testing, releases, production support, and engineering-team coordination.

Key Responsibilities

Design and develop Java and Spring Boot microservices for banking, payments, alerts, account servicing, and customer-facing platforms.

Build secure RESTful APIs and event-driven integrations using Kafka, RabbitMQ, IBM MQ, or JMS.

Develop high-volume, low-latency, and resilient distributed services.

Design batch and sub-batch processing for large datasets, including failure handling and recoverability.

Implement data archival, restoration, synchronization, and migration capabilities.

Design and optimize MongoDB and relational-database collections, schemas, indexes, and queries.

Lead technical design, low-level design, development, testing, release, and production-support activities.

Provide technical direction, code reviews, development standards, and mentoring to engineering teams.

Migrate applications to OpenShift and Kubernetes-based container platforms.

Develop and maintain CI/CD pipelines using Jenkins, Harness, GitHub, Maven, Gradle, and artifact repositories.

Implement OAuth 2.0, TLS, encryption, and API-security controls.

Develop automated tests using JUnit, Mockito, Cucumber, Selenium, JMeter, Gatling, WireMock, or comparable tools.

Build dashboards and operational alerts using Splunk, Kibana, AppDynamics, Instana, or Datadog.

Troubleshoot production issues by analyzing application logs, performance metrics, event flows, and database behavior.

Collaborate with product owners, architects, QA, database, security, and DevOps teams.

Drive application resiliency, performance improvement, cloud adoption, and engineering automation.

Required Skills

Advanced Java and J2EE development experience.

Strong experience with Spring Boot, Spring MVC, Spring Data, Spring Batch, and REST APIs.

Experience with microservices and event-driven architecture.

Hands-on experience with Kafka and at least one enterprise messaging technology.

Strong experience with MongoDB and relational databases such as Oracle or PostgreSQL.

Experience deploying applications to OpenShift, Kubernetes, AWS, or comparable cloud platforms.

Strong understanding of API security, OAuth 2.0, TLS, and encryption.

Experience with Jenkins, Maven, Gradle, GitHub, SonarQube, and CI/CD.

Experience with automated unit, integration, behavioural, and performance testing.

Production-support experience using enterprise monitoring and logging tools.

Proven ability to lead technical delivery and coordinate engineering activities.

Preferred Skills

Banking, payments, cards, digital wallets, alerts, or account-servicing experience.

Experience with Cassandra, MariaDB, or other NoSQL platforms.

Experience with Apigee or another API-management platform.

Familiarity with AWS, Pivotal Cloud Foundry, or Google Cloud.

Knowledge of Autosys and enterprise batch scheduling.

AWS certification or another relevant cloud certification.

Experience using AI-assisted software-development tools.

Education

Bachelor’s degree in Computer Science, Engineering, Information Technology, or a related field.

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More about this job

Responsibilities

Design and deliver secure, scalable banking and payment applications, including Java and Spring Boot microservices, APIs, event-driven integrations, and batch-processing services. Lead technical design and delivery, guide engineering teams, support production systems, and drive application resiliency, performance, cloud adoption, and automation.

Requirements

Requires advanced Java and J2EE development experience, strong Spring Boot and microservices expertise, messaging and database experience, and familiarity with cloud or container platforms, API security, CI/CD, automated testing, and production monitoring. Candidates must also demonstrate technical leadership and coordination skills; a bachelor's degree in Computer Science, Engineering, Information Technology, or a related field is specified.

Skills

Java
J2EE
Spring Boot
Microservices
REST APIs
Event-Driven Architecture
Kafka
RabbitMQ
IBM MQ
MongoDB
Relational Databases
Kubernetes
OpenShift
CI/CD
API Security
Technical Leadership

Visa sponsorship

Not detected in the job text

Keywords

Java
J2EE
Spring Boot
Spring MVC
Spring Data
Spring Batch
Microservices
REST APIs
Event-Driven Architecture
Kafka
RabbitMQ
IBM MQ
JMS
MongoDB
Oracle
PostgreSQL
Kubernetes
OpenShift
AWS
OAuth 2.0
TLS
Encryption
Jenkins
Maven
Gradle
GitHub
SonarQube
CI/CD
Banking
Payments

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