Top Java Developer Jobs in Ottawa

Seeking a Java Back-End Engineer for enterprise applications, requiring strong Java and J2EE experience, RDBMS, and secure coding knowledge.

The Java Developer will be responsible for developing web-based applications, using Java and related technologies, while collaborating within the team.

Develop, implement, and support enterprise software using Java/Spring Boot and Angular. Collaborate with product and agile teams to design, code, test, review and deploy microservices and APIs, provide production support, document artifacts, and ensure scalability, performance and adherence to architecture and best practices.

Develop and maintain secure, scalable Java backend applications and integrations. Design RESTful services, troubleshoot production issues, improve performance and reliability, apply secure coding practices, and collaborate with UI and business stakeholders. The role includes monitoring systems, conducting code reviews, supporting incident postmortems, and mentoring junior developers within an Agile engineering team. This is a hybrid position based in Etobicoke, Ontario, requiring two office days per week.

Design, develop, test, deploy, and maintain scalable Java enterprise applications, Spring Boot microservices, REST APIs, and distributed systems. Build Kafka-based event-driven solutions, secure APIs, integrate databases, create CI/CD pipelines, containerize and deploy applications with Docker and Kubernetes, and monitor production systems. Collaborate with architecture, DevOps, QA, product, and engineering teams while contributing to system design, performance optimization, and AI-enabled application initiatives.

As a Senior Software Engineer, you will develop high-quality software applications, mentor teams, and drive project deliveries while collaborating with various stakeholders.

Design, develop, and maintain scalable Java backend services using Spring/Spring Boot and microservices. Participate across the full SDLC, implement TDD and CI/CD practices, deploy and manage software, work in Agile/Scrum, mentor engineers, and provide hands-on problem solving to meet deadlines and business requirements.

Design, develop, test, and maintain scalable web applications using Java, Spring Boot, and Angular. Build RESTful APIs and microservices, create responsive front-end interfaces, perform unit testing and debugging, participate in code reviews and Agile ceremonies, and optimize performance, security, and reliability.

Senior Java Big Data Developer with 8+ years building applications on Cloudera/Hadoop ecosystems using Spark and MapReduce. Responsible for designing performant Java (1.8+) solutions, data analysis of large datasets, unit testing (JUnit), and collaborating with/managing global technology teams. Preferred skills include Unix/Python scripting and familiarity with Hive, Impala, YARN, and Kafka.

Design, implement, and maintain Elasticsearch distributed-systems components to ensure scalable, performant, and resilient indexing, coordination, replication, and cluster communication. Diagnose and fix concurrency and performance issues, push scalability limits, and lead projects end-to-end while supporting support engineers and mentoring engineers across multi-node deployments.

Lead development of core Elasticsearch infrastructure and shared platform features. Design scalable APIs, solve performance and concurrency issues, improve observability and CI/CD, support cross-team projects, and own operational investigations end-to-end.

The Senior Java Developer will enhance Elasticsearch's distributed systems, maintain high performance, and solve complex problems related to data indexing and coordination across multiple machines.

Seeking a Senior Engineer with 5+ years in Java, familiar with Spring, microservices, and agile principles to solve client challenges.

Design, build, and maintain scalable, highly available backend services in Java. Own backend architecture, optimize performance, develop APIs and integrations, support production, conduct code reviews, and contribute to AI engineering tools and infrastructure.

Administer, monitor, and support Java applications and Genesys Cloud. Provide production troubleshooting, minor bug fixes and enhancements, and act as primary POC for Java apps. Develop/support microservices using Java and Spring Boot, perform analysis of system behavior, and apply problem-solving and diagnostics to maintain service quality.

Design, build, and maintain cloud-native microservices and scalable search/data ingestion systems. Lead architecture, optimize database performance, implement event-driven solutions, mentor engineers, and collaborate across product teams to deliver reliable, production-ready cybersecurity platform features.

Develop and maintain Java backend services for AutoOps, integrate ELK stack and third-party APIs, implement RESTful services, write tests, investigate and resolve performance, concurrency, and stability issues, and support cross-functional teams while leveraging AI tools to accelerate development and debugging.

As a Senior Software Engineer, you will build and maintain data framework integrations for ClickHouse, focusing on high-performance database and developer experience. You will manage full lifecycle integrations, ensuring scalability and reliability for real-time data processing and analytics.

Design, develop, test, and maintain scalable web applications using Java, Spring Boot, microservices, and Angular. Build REST APIs, work with SQL databases, and collaborate with cross-functional teams following Agile/Scrum practices.

Develop and maintain scalable backend applications and RESTful APIs using Java and Spring Boot. Design microservices, implement database interactions (SQL), write unit tests (JUnit), use Git and build tools (Maven/Gradle), and collaborate in Agile/Scrum teams to deliver reliable backend services.

The Senior Full Stack Developer will build features for a data security platform, focusing on microservices, code quality, and security best practices while leveraging AI tools for development efficiency.