“Core Java” jobs in Canada – Page 27

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• 27d

  Senior Software Developer - Performance Tuning - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Candidates need deep Java internals and JVM memory management knowledge, plus experience profiling and benchmarking distributed systems with tools such as JMH and Rally. They also need an understanding of distributed systems architecture and a track record of using AI or advanced tooling to speed up optimization.

  JMH, Rally, Elasticsearch, Java

  27d

  Senior Java Developer - Distributed Systems, Serverless - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Candidates need deep distributed systems and consensus knowledge, strong core Java and algorithms skills, and proven experience building features across many machines. Experience using AI tools to speed development and debugging, and working autonomously in a distributed team, is also required.

  Elasticsearch, Java, Lucene, Netty

  27d

  Senior Java Developer - Core/Infra - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Candidates need strong core Java skills, API design experience and knowledge of JDK internals such as concurrency, memory and garbage collection. They also need a proven record of leading large projects and of using AI to accelerate development and debugging.

  Java, Gradle, Maven, Buildkite, Argo CD, OpenTelemetry

  27d

  Principal Software Developer - Vector Search - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Candidates need experience implementing vector similarity techniques (such as HNSW or IVF) on large-scale search platforms, strong core Java skills, and the ability to work autonomously. Strong written and verbal communication for distributed, asynchronous collaboration is also required.

  Elasticsearch, Lucene, Java, GitHub, Slack, Zoom

  27d

  Principal Software Developer - Storage Engine - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Candidates need a proven record of building high-performance database or search systems, strong core Java skills including concurrency, and experience with data storage technologies such as Elasticsearch, Solr, PostgreSQL, MongoDB or Prometheus. They must work autonomously and communicate clearly across distributed teams, and use AI tools to speed up development while owning the results.

  Elasticsearch, ES|QL, GitHub, Slack, Zoom

  27d

  Principal Software Developer - Security - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Elastic needs deep Java and JVM expertise, scalable authorization design (RBAC/ABAC), distributed systems security and OAuth 2.0 or SAML knowledge. Candidates should be able to lead distributed teams autonomously.

  Elasticsearch

  27d

  Principal Software Developer - Search Infra - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Candidates need proven experience leading technical projects in search infrastructure and distributed systems, plus strong core Java skills. Hands-on experience with Elasticsearch, Lucene or Solr and clear written and verbal communication are also required.

  Elasticsearch, Lucene, Solr, GitHub, Zoom, Slack

  27d

  Principal Software Developer - Search Algorithms - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Candidates need professional experience with vector similarity search and vector databases, such as HNSW or IVF, at scale. Strong core Java skills, autonomy, and clear written and verbal communication for distributed work are also required.

  Elasticsearch, Java, Lucene, Git, Zoom, Slack

  27d

  Principal Software Developer - Query Engine, Database Internals - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Candidates need several years leading technical projects in data and analytics systems, strong core Java skills, and experience with search or analytics APIs and data stores. They also need mentoring experience, a track record of working autonomously in distributed teams, and strong written and verbal communication.

  Elasticsearch, ES|QL, Java, GitHub, Slack, Zoom

  27d

  Principal Software Developer - Performance Tuning - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Candidates need deep Java and JVM knowledge, experience profiling and optimizing distributed systems, and an understanding of distributed architecture. Experience using AI or advanced tooling for optimization and the ability to work autonomously across teams are also required.

  Elasticsearch, JMH, Rally, flamegraphs

  27d

  Principal Java Developer - Distributed Systems, Serverless - Elasticsearch

  Canada

  

  Elastic: Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.

  Candidates need deep distributed systems and consensus expertise, strong core Java and algorithms skills, and experience building large-scale distributed systems. Experience leading projects with multiple engineers and using AI to accelerate development and debugging is required.

  Elasticsearch, Lucene, Netty, Java

• 27d

  AWS + Node Js Java Developer

  Toronto, ON

  AN

  Astra North Infoteck Inc.

  5+ YOECandidates need 5 years of full stack development on large projects, with hands-on work in Node.js, Java, J2EE, JavaScript and AWS services. Experience with CI/CD tools, Agile teams, cloud architecture and strong communication skills is also required.

  AWS Lambda, AWS S3, AWS CDK, API Gateway, Aurora DB, Jenkins

  27d

  Full Stack Java Developer - AWS, Microservices, Node.js

  Toronto, ON

  AN

  Astra North Infoteck Inc.

  6+ YOECandidates need five years of full stack development on large projects, hands-on AWS and microservices experience, and strong Java, Node.js and JavaScript skills. Experience with CI/CD tools, containers and clear communication is also required.

  AWS, Java, JavaScript, Jenkins, Bamboo, Ansible

  27d

  Adobe Experience Manager (AEM) Architect – AEM Architecture, Java & Enterprise Digital Experience Solutions

  Toronto, ON

  AN

  Astra North Infoteck Inc.

  8+ YOEAstra North Infoteck Inc. needs candidates with 8+ years of IT experience, at least three large-scale AEM implementations, and deep knowledge of AEM architecture and Java. Strong REST API, CI/CD and AWS experience is also required, along with excellent problem-solving and communication skills.

  Adobe Experience Manager, Java, AWS, CI/CD pipelines, Apache Sling, OSGi

  27d

  Senior Spark Scala Developer – Java & Spring Boot

  Toronto, ON

  AN

  Astra North Infoteck Inc.

  6+ YOEAstra North Infoteck needs candidates with 6 to 8 years of hands-on Apache Spark and Scala experience, strong Java skills, and familiarity with Hadoop, Maven, Git, CI/CD, Helios, Spring Boot and SQL.

  Apache Spark, Scala, Java, Hadoop, Maven, Git

  27d

  Senior Java Application Support Engineer – Java, Spring, SOAP, SSL/TLS & Production Support

  Toronto, ON

  AN

  Astra North Infoteck Inc.

  12+ YOECandidates need 12+ years of enterprise Java development and production support experience. They must know SSL/TLS certificates and keystores, Java 8 and 17, Spring, SOAP, REST, SQL, stored procedures, and Unix/Linux shell scripting.

  Java, Spring, SOAP, Jersey, JAX-RS, Unix

  27d

  Senior Java Microservices Developer – Java, Spring Boot, Kafka, MongoDB, OpenShift/AWS

  Mississauga, ON

  AN

  Astra North Infoteck Inc.

  9+ YOECandidates need 9 to 12 years of experience with Java (8, 11 or 17) and Spring Boot, plus microservices and REST API design. Hands-on work with MongoDB, Kafka and OpenShift or AWS is also required.

  Java, Spring Boot, Kafka, MongoDB, OpenShift, AWS

  27d

  Senior Java Backend Developer – Java, Distributed Systems, Agentic AI

  Montréal, QC

  AN

  Astra North Infoteck Inc.

  5+ YOECandidates need 5+ years of building large-scale Java backend systems, strong knowledge of data structures, algorithms, and design patterns, and solid Linux/Unix and scripting skills. Experience with relational and document databases, Agentic AI, Agile, and DevOps is also expected.

  Java, Linux, Unix

  27d

  Guidewire Integration Developer – Java, Spring Boot, Apigee, REST APIs

  Toronto, ON

  AN

  Astra North Infoteck Inc.

  Candidates need hands-on Java and Spring Boot experience, familiarity with Guidewire PolicyCenter integration and Apigee API management, and knowledge of REST, SOAP, OAuth 2.0 and JWT security.

  Guidewire PolicyCenter, Apigee, Postman, Gosu

  27d

  Senior Java Developer – Spring Boot | TDD | CI/CD | AWS

  Toronto, ON

  Contract

  AN

  Astra North Infoteck Inc.

  5+ YOECandidates need 5+ years of Java or Node.js development experience, hands-on JUnit and Mockito testing, and experience building Spring Boot REST APIs and microservices. Knowledge of secure coding, OWASP Top 10, SonarQube, JaCoCo and CI/CD tools such as Jenkins is expected.

  Spring Boot, JUnit, Mockito, SonarQube, JaCoCo, Jenkins

  27d

  Senior Java Developer – TDD, JUnit, CI/CD & Code Quality

  Toronto, ON

  Contract

  AN

  Astra North Infoteck Inc.

  5+ YOECandidates need 5+ years of Java development experience, strong core Java skills and hands-on unit testing with JUnit and Mockito. Experience with Spring Boot REST APIs, Maven or Gradle, Git, and CI/CD pipelines such as Jenkins is also required.

  Java, JUnit, Mockito, SonarQube, JaCoCo, Spring Boot

  27d

  QE Technical Lead – Contact Center Platforms

  Toronto, ON

  AN

  Astra North Infoteck Inc.

  Candidates need expertise in quality engineering for contact center platforms, automation testing experience with tools such as Selenium, Postman or Karate, and Java skills. Experience in a scaled Agile environment and familiarity with Git, JIRA and Confluence are also needed.

  Cyara, Hammer, Selenium, Postman, Karate, Bitbucket

  27d

  Bilingual QE Engineer – Contact Center Tools

  Toronto, ON

  AN

  Astra North Infoteck Inc.

  Candidates need quality engineering experience with contact center platforms and test automation skills using tools such as Selenium, Postman or Karate. Java, Git-based workflows, Agile practices and French speaking ability are required, and Amazon Connect experience is a plus.

  Amazon Connect, Cyara, Hammer, Selenium, Postman, Karate

• 27d

  Senior Backend Engineer - App

  Quebec

  

  Groupe Dynamite, Inc Garage: (TSX: GRGD) is a growth-oriented company striving for excellence in the fashion industry.

  5+ YOEGroupe Dynamite needs candidates with a bachelor's degree in a technical field, 5+ years of software development experience including .NET or Java, 4+ years building RESTful integrations, and strong Node.js/TypeScript and cloud skills. Strong communication and AI-assisted development experience are expected.

  Node.js, TypeScript, .NET Framework, React Native, NestJS, GraphQL

3 companies