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Sr. Software Developer (Java Backend) - 1 Year Contract

DCI Group of Companies - Discover Communications Brampton, Ontario, Canada · CA$146K–CA$166K/yr

Transportation, Logistics, Supply Chain and Storage · 51-200 employees

9 h ago
java Senior (5-10 yrs) Temporary Canada
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About the role

The role involves designing, developing, and maintaining scalable backend applications and microservices within a cloud-native environment. Responsibilities also include troubleshooting production issues, managing database models, and collaborating with cross-functional teams to ensure system reliability.

What they look for

Java Spring Boot Microservices REST APIs Cassandra Kubernetes Helm Git Distributed Systems Kafka Dynatrace CI/CD Cloud-native Production Troubleshooting Data Modeling Agile

Requirements

Candidates must have at least 5 years of hands-on Java development experience and expertise in Spring Boot, microservices, and distributed systems. A bachelor's degree in a relevant field or equivalent practical experience is required.

Full description

Position Summary

We are seeking a highly skilled and motivated Senior Software Developer with strong expertise in Java, Spring Boot, Microservices, and Distributed Systems. The ideal candidate will play a key role in designing, developing, deploying, and supporting scalable backend applications and APIs within a cloud-native environment. This role requires hands-on experience with modern software development practices, production troubleshooting, and collaboration across cross-functional teams to deliver high-quality solutions.

Key Responsibilities

  • Design, develop, test, deploy, and maintain enterprise-grade backend applications using Java and Spring Boot.
  • Build and support scalable microservices and RESTful APIs in a distributed systems architecture.
  • Design and implement service-to-service communication patterns, error handling mechanisms, and resilient application architectures.
  • Develop, integrate, and troubleshoot REST APIs for internal and external system integrations.
  • Work with Kafka-based event-driven architectures, including publishing and consuming events, monitoring message processing, and troubleshooting integration issues.
  • Design and optimize Cassandra data models, queries, and database structures to ensure high performance and scalability.
  • Deploy, configure, and support applications running in Kubernetes environments using Helm charts and deployment configurations.
  • Monitor application health, analyze logs, and troubleshoot production and non-production issues across multiple services and environments.
  • Perform root cause analysis and implement corrective actions to improve system reliability and performance.
  • Participate in code reviews and ensure adherence to established coding standards, design principles, and development best practices.
  • Collaborate with product owners, architects, and development teams to deliver high-quality software solutions.
  • Manage application configurations and environment-specific deployments across development, testing, and production environments.
  • Support continuous improvement initiatives related to performance, scalability, reliability, and maintainability.

Required Qualifications

  • Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related discipline, or equivalent practical experience.
  • 5+ years of hands-on software development experience using Java.
  • Strong expertise in:• Java (Object-Oriented Programming, Collections Framework, Streams, Exception Handling)
  • Spring Boot
  • Microservices Architecture
  • RESTful API Design and Development
  • Distributed Systems
  • Git-Based Source Control
  • Experience with Cassandra, including:• Data Modeling
  • Partition Keys and Clustering Columns
  • Query Optimization
  • TTL Management
  • Distributed Database Concepts
  • Experience working with Kubernetes, including:• Deployments
  • Services
  • Pods
  • Configuration Management
  • Helm Charts
  • Strong understanding of software design patterns and development best practices.
  • Experience troubleshooting complex application and integration issues in multi-service environments.
  • Strong analytical, problem-solving, and communication skills.

Preferred Qualifications

  • Experience with Apache Kafka and event-driven architectures.
  • Experience with Dynatrace or similar application performance monitoring and troubleshooting tools.
  • Experience supporting cloud-native and containerized applications.
  • Exposure to CI/CD pipelines and DevOps practices.
  • Experience working in Agile/Scrum development environments.

Technical Skills

Mandatory

  • Java
  • Spring Boot
  • Microservices
  • REST APIs
  • Cassandra
  • Kubernetes
  • Helm
  • Git
  • Design Patterns
  • Distributed Systems
  • Production Support & Troubleshooting

Preferred

  • Apache Kafka
  • Dynatrace
  • Event-Driven Architecture
  • CI/CD Pipelines
  • Cloud Technologies

Core Competencies

  • Strong problem-solving and debugging capabilities
  • Ownership and accountability
  • Collaboration and teamwork
  • Ability to work effectively in fast-paced environments
  • Continuous learning mindset
  • Attention to detail and commitment to quality
  • Excellent communication and stakeholder management skills

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