Top Java Developer Jobs in Ottawa

Develop and enhance the Findur financial trading and risk management application. Responsibilities include Java development, system integration, data transformation and reconciliation, cloud modernization, root-cause analysis, performance testing, automation, DevOps, and second-line application support. The role requires enterprise financial systems experience, strong SQL and Oracle skills, secure cloud architecture expertise, and eligibility for Secret Security Clearance in Canada.

Develop and support Java applications for fixed-income trading technology. Responsibilities include requirements analysis, system design, development, testing, implementation, production support, risk assessment, security measures, user consultation, and process definition. The role requires expertise in distributed web applications, Spring-based frameworks, containers, virtualization, real-time messaging, and database technologies, while serving as a subject matter expert and coach to junior analysts.

Develop and support large-scale enterprise applications across the full SDLC. Responsibilities include Java and Oracle development, REST API and microservices implementation, application design, testing, debugging, deployment, migration support, documentation, troubleshooting, and Oracle E-Business Suite customization. The role also involves database performance tuning, ETL and data warehousing, security protocols, impact assessments, stakeholder collaboration, and post-implementation support.

Lead architecture and technical direction across product and platform teams. Design scalable, reliable cloud systems, establish engineering standards, solve complex modernization and distributed-systems challenges, support FedRAMP readiness, and mentor engineers. Guide multi-region deployments, disaster recovery, observability, data migrations, performance tuning, and production incident resolution while influencing roadmaps and driving cross-team execution.

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.

Design, develop, and maintain high-performance, secure Java backend services and APIs. Ensure reliability, scalability, and cost-efficiency across microservices, databases, messaging systems, and capacity planning. Troubleshoot, profile, benchmark, and optimize systems (including ML applications) and collaborate with Kazakhstan stakeholders.

Lead development of internal tools and platforms that improve engineering productivity and developer experience. Design, build, deploy, and optimize scalable web applications and cloud services using Java, Spring, Angular, React, and OpenShift. Collaborate with stakeholders, implement microservices and REST solutions, establish automated testing and deployment practices, and provide technical leadership for platform improvements. The role also involves monitoring, debugging, tuning, and maintaining highly reliable enterprise applications.

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.

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.

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, 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.

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.

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.