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Added 31 mins ago
Amazon Connect Developer
BrainRidge Consulting
Toronto, ON
Full-time
We are seeking an experienced, hands-on Amazon Connect Developer to design, configure, and scale our cloud-native Contact Center as a Service (CCaaS) platform. In this role, you will be…
Added 31 mins ago
MLOps Engineer – Databricks (1896) $90-100hr
Direct IT Recruiting Inc.
Toronto, ON
$90 to $100 CAD / hour
Contract
MLOps/LLMOps, CI/CD, Infrastructure as Code, evaluation, observability, and cloud-native engineering.
Added 32 mins ago
Cloud Engineer
Scotiabank
Toronto, ON
The Cloud Engineer will be part of the “Cloud Platform Engineering” team that is responsible for the Cloud adoption strategy and developing platform components/services for the broad…
Added 47 mins ago
Principal Software Engineer, SecureAI
Okta
Toronto, ON
Drive continual evolution in the adoption of AI-native development practices, helping the team rethink how we design, review, and ship software with AI as a core part of the workflow.
Added 1 hour ago
Director of Engineering
Experis
Toronto, ON · Greater Toronto Area, Canada
$180,000 to $205,000 CAD / year
Full-time
…engineering teams responsible for building and scaling high-volume, cloud-native applications. This is an exceptional opportunity for a technical leader who enjoys solving complex…
Added 1 hour ago
Senior Integration Engineer
Altis Technology
Ottawa, ON
$140,000 to $147,000 CAD / year
Full-time
…innovative technology organization, designing and building secure, cloud-native solutions that connect critical enterprise systems and enable real-time data…
Added 1 hour ago
Cloud Developer
Forgeahead
Surrey, BC
Full-time
Minimum 10+ years of cloud developer experience
Added 1 hour ago
Security Engineer, AI Security
Amazon
Vancouver, BC
Design and develop scalable solutions using cloud-native architectures and microservices in a large distributed computing environment.
Added 2 hours ago
Oracle DBA : Toronto, ON (Hybrid) : Full time
AceStack
Toronto, ON
Full-time
Cloud Migration Experience: Strong, proven track record of migrating on-premises databases to AWS environments (using tools such as AWS DMS, SCT, or native utilities).
Added 2 hours ago
Azure Applications Architect
Mohawk Medbuy Corporation
Toronto, ON · Greater Toronto Area, Canada
Full-time
Translate business requirements into technical architecture and cloud-native application designs
Added 2 hours ago
Staff Software Developer (Pre-ID Relo)
Intuit
Toronto, ON
Full-time
The work is architecturally demanding. HCM spans a modern React front end and a large surface of cloud-native backend services, sitting on business logic that must be exactly right:…
Added 2 hours ago
AWS Developer
Dawn InfoTek
Toronto, ON
Contract
Build and deploy scalable backend services and cloud-native solutions on AWS.
Added 2 hours ago
Senior Geospatial Engineer
SkyWatch
Kitchener, ON
Full-time
Cloud-native geospatial, in production: cloud-optimized formats (COG, GeoParquet, Zarr), STAC, GDAL and rasterio or similar, containers, object storage and batch or distributed compute.
Added 3 hours ago
Data Engineer - GCP/BigQuery
York Digital Consulting Inc.
Toronto, ON
Contract
● Experience with cloud platforms (GCP BigQuery preferred) and cloud-native technologies.
Added 3 hours ago
Java Backend Developer
Dexian
Mississauga, ON
Contract
Docker, Kubernetes, CI/CD, Jenkins, GitHub Actions, AWS, Linux, Cloud-Native, Distributed Systems
Added 3 hours ago
Senior Java Low Latency Developer with experience in Payments and Trading Platforms
K&K Global Talent Solutions INC.
Mississauga, ON
Full-time
Exposure to cloud-native technologies, observability tooling, and modern DevOps practices.
Added 3 hours ago
Senior Java Low Latency Developer
K&K Global Talent Solutions INC.
Mississauga, ON
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Exposure to cloud-native technologies, observability tooling, and modern DevOps practices.
Added 4 hours ago
Data & Applications System Supervisor - Systems Supervisor
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Saint-Paul, NB · St.-Paul, NB
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This Supervisor leads a multidisciplinary technical team that maintains and modernizes cloud-hosted, web-based, and database-driven systems; guides technical roadmaps and modernization…
Added 4 hours ago
Application Developer, IT (Java / Cloud Applications)
City of Mississauga
Mississauga, ON
The City of Mississauga is seeking an experienced Application Developer to support the modernization of the Property Tax Management system. The successful candidate will design, build,…
Added 5 hours ago
Staff Software Developer (Pre-ID Relo)
Intuit
Toronto, ON
Full-time
The work is architecturally demanding. HCM spans a modern React front end and a large surface of cloud-native backend services, sitting on business logic that must be exactly right:…
Added 5 hours ago
Senior Cloud Platform Engineer (AWS), AI Infrastructure - Evinova
Evinova
Mississauga, ON
Full-time
The Machine Learning and Artificial Intelligence Operations team (ML/AI Ops) is the cloud platform engineering team responsible for building and operating the infrastructure that enables…
Added 5 hours ago
Principal CRM Developer
Condominium Authority of Ontario
Toronto, ON
Full-time
Reporting to the VP, Technology & Application Development, the Principal CRM Developer is the senior hands-on engineer for the technology that powers the CAO's digital services, the…
Added 5 hours ago
Developer Advocate
Aduna Global
Montreal, QC
Full-time
This is a unique opportunity to build and scale Developer Advocacy from the ground up. You will engage directly with cloud-native developers, hyperscaler communities, and technical…
Added 5 hours ago
Java Full Stack Engineer - Professional
HEXAWARE
Canada
Full-time
…Spring Boot Microservices frameworks, Event-Driven Services, and Cloud-Native Application Development • Strong proficiency in Java application development, encompassing a deep understanding…
Added 5 hours ago
Business Application Specialist - SQILLS
Siemens
Oakville, ON
Experience in (troubleshooting in the areas of) cloud, microservice, multi-tier and API first environments;

Dexian

Java Backend Developer

Mississauga, ON, Canada

Job type: Contract
Apply by: Nov 1, 2026
Experience: Experience: 8+ years of professional experience in application development or systems analysis, with a heavy emphasis on Java-based backend architectures.
Posting language: English
Posted: Oct 2, 2026

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Original job description

Role- Java Backend Developer

Location- Mississauga ON(3 Days/Week)

Contract to Hire

Position Overview

We are seeking a highly skilled and passionate Senior Java Backend Developer to join our engineering team as a Senior Individual Contributor. In this role, you will be responsible for designing, building, and optimizing high-performance, robust, and scalable backend applications specialized in batch and real-time data processing.

As a senior technical leader with a strong programming background, you will drive the architecture and implementation of complex distributed systems. You will play a crucial role in analyzing system requirements, designing data flows, and ensuring clean, maintainable, and highly efficient code. This role demands deep technical expertise in Core Java, concurrency, memory management, and modern distributed data frameworks, without the burden of people management responsibilities.

Category

Targeted Keywords

Languages & Core Tech

Core Java, Java 17, Java 21, JVM Tuning, Multithreading, Concurrency, Garbage Collection, OOP, SOLID Principles, Design Patterns, Data Structures, Algorithms

Frameworks & APIs

Spring Boot, Spring Cloud, Microservices, Hibernate, JPA, REST, gRPC, Event-Driven Architecture

Data Processing & Messaging

Apache Kafka, Apache Spark, Flink, Hadoop, ETL, Data Pipelines, Batch Processing, Stream Processing, Messaging Queues

Databases

SQL, PostgreSQL, Oracle, NoSQL, MongoDB, Cassandra, Redis, Database Optimization, Schema Design

DevOps & Cloud

Docker, Kubernetes, CI/CD, Jenkins, GitHub Actions, AWS, Linux, Cloud-Native, Distributed Systems

Methodologies & Quality

TDD (Test-Driven Development), Clean Code, Unit Testing, Integration Testing, Systems Analysis, Agile, SDLC

Key Responsibilities

Systems Analysis & Architecture: Analyze complex business requirements and translate them into highly scalable, reliable, and secure backend systems designs. Evaluate trade-offs between different data architecture patterns (e.g., microservices vs. event-driven).
Hands-on Programming: Write high-quality, production-ready, and performant Java code. Leverage advanced software engineering principles such as Object-Oriented Programming (OOP), SOLID design principles, and design patterns.
Technical Project Delivery: Lead the technical implementation and delivery of critical, complex backend and data-processing initiatives. Partner with cross-functional teams to ensure successful project deployment from conception through production.
Subject Matter Expertise (SME): Act as the resident Subject Matter Expert (SME) in high-throughput data processing, stream processing, or JVM performance tuning. Provide guidance on industry best practices and emerging backend technologies.
Performance Optimization: Diagnose, profile, and resolve complex performance bottlenecks, memory leaks, and concurrency issues in high-volume distributed environments.
Quality Assurance & Best Practices: Champion code quality through Test-Driven Development (TDD), comprehensive unit/integration testing, and rigid code review standards.
Mentorship: Provide technical mentorship and architectural guidance to other engineers on the team, fostering a culture of technical excellence and clean code.

Technical Skills & Qualifications

Required Qualifications:

Experience: 8+ years of professional experience in application development or systems analysis, with a heavy emphasis on Java-based backend architectures.
Core Java Mastery: Deep, expert-level understanding of Core Java (Java 11/17/21), including advanced multithreading, concurrency models, Java memory model (JVM garbage collection, heap analysis), and Collections API.
Data Processing & Streaming: Extensive hands-on experience building distributed data processing systems, ETL pipelines, and real-time streaming architectures using tools like Apache Kafka, Apache Spark, Flink, or Hadoop.
Framework Expertise: Strong experience with the Spring Ecosystem (Spring Boot, Spring Cloud, Spring Data, Spring Security) and ORM frameworks (Hibernate/JPA).
Database Management: Proficiency in designing schemas and writing optimized queries for both relational databases (e.g., PostgreSQL, MySQL, Oracle) and NoSQL stores (e.g., Cassandra, MongoDB, Redis).
Distributed Systems: Comprehensive understanding of distributed system design patterns, consensus protocols, caching strategies, and API design (RESTful APIs, gRPC).
CI/CD & DevOps: Practical experience with containerization (Docker, Kubernetes), continuous integration/continuous deployment tools (Jenkins, GitLab CI, or GitHub Actions), and infrastructure-as-code principles.
Testing: Strong advocate for testing frameworks such as JUnit, Mockito, and integration testing tools.

Preferred Qualifications:

Experience with cloud platforms (AWS, Azure, or GCP), specifically managed database and container services.
Experience in financial services, banking technology, or large-scale enterprise transaction systems.
Familiarity with Unix/Linux environments, shell scripting, and network configurations.

Apply About employer

More about this job

Responsibilities

Design, build, and optimize scalable Java backend systems for batch and real-time data processing, including distributed architectures and data pipelines. Lead technical delivery, resolve performance and concurrency issues, uphold testing and code-quality practices, and provide technical mentorship.

Requirements

Requires 8 or more years of application development or systems analysis experience, expert-level Core Java knowledge, and hands-on experience with distributed data processing and streaming technologies. Candidates should also have strong Spring, database, distributed-systems, DevOps, and testing experience; cloud, financial-services, and Linux experience are preferred.

Skills

Core Java
Java 17
Java 21
Concurrency
JVM Performance Tuning
Spring Boot
Microservices
Apache Kafka
Apache Spark
Flink
Data Pipelines
PostgreSQL
Docker
Kubernetes
CI/CD
Distributed Systems

Visa sponsorship

Not detected in the job text

Keywords

Core Java
Java 11
Java 17
Java 21
JVM Tuning
Multithreading
Concurrency
Garbage Collection
Spring Boot
Spring Cloud
Microservices
Hibernate
REST APIs
gRPC
Apache Kafka
Apache Spark
Flink
Hadoop
ETL
Stream Processing
PostgreSQL
Oracle
MongoDB
Cassandra
Redis
Docker
Kubernetes
CI/CD
AWS
Test-Driven Development

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