Senior Java Backend Developer (Hybrid)

Cognizant; Toronto; On-site; CAD 60,000 - 96,000; Full time

Job summary

Cognizant is seeking a Senior Java Backend Developer to design, develop, and support scalable cloud-native applications and microservices powering customer-facing platforms. You will collaborate with architects, product owners, DevOps, and stakeholders to deliver enterprise solutions.

Responsibilities include building RESTful APIs, implementing secure authentication, and driving performance and reliability through monitoring and telemetry. Hybrid work with 2 days/week in Toronto offices.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or related field.
• 5+ years of experience developing enterprise applications using Java technologies.
• Strong hands-on experience with Spring Framework, Spring Boot, and Spring Cloud.
• Experience developing and deploying cloud-native microservices and REST APIs.
• Solid understanding of OAuth 2.0 and OpenID Connect authentication/authorization.
• Knowledge of secure application development and cloud security best practices.
• Experience with CI/CD tools and DevOps practices, including Jenkins and test automation.
• Strong experience with relational databases (Oracle/SQL Server) and NoSQL (MongoDB).
• Proven ability to build highly available, low-latency, resilient distributed systems.

Responsibilities

• Design, develop, and maintain scalable Java-based applications and microservices with Spring Boot/Spring Cloud.
• Build and enhance RESTful APIs with domain-driven design and hexagonal architecture.
• Collaborate with cross-functional teams to translate requirements into secure technical solutions.
• Improve performance, availability, and reliability via observability and monitoring.
• Participate in architecture discussions, PoCs, and solution design initiatives.
• Implement and support CI/CD pipelines and DevOps-driven delivery.
• Troubleshoot production and performance issues using telemetry and log management.
• Promote learning, innovation, and knowledge sharing across the team.

Skills

Java

Spring Boot

REST APIs

OAuth 2.0 / OIDC

CI/CD / Jenkins

Observability / monitoring

Distributed systems

Cloud-native

Education

Bachelor's degree in CS/CE/IT

Tools

Jenkins

Splunk

Datadog

Dynatrace

OpenTelemetry

Job description

Senior Java Backend Developer

As a Senior Java Backend Developer, you will make an impact by designing, developing, and supporting scalable cloud-native applications and microservices that power critical customer-facing platforms. You will be a valued member of the Engineering team and collaborate closely with architects, product owners, DevOps engineers, and technology stakeholders to deliver high-quality enterprise solutions.

In this role, you will

• Design, develop, and maintain scalable Java-based applications and microservices using Spring Boot and Spring Cloud.
• Build and enhance RESTful APIs using domain-driven design and hexagonal architecture principles.
• Collaborate with cross-functional teams to translate business requirements into secure and resilient technical solutions.
• Drive application performance, availability, and reliability through observability, monitoring, and proactive troubleshooting.
• Participate in architecture discussions, proof of concepts (PoCs), and solution design initiatives that support enterprise product strategy.
• Implement and support CI/CD pipelines, automated testing practices, and DevOps-driven delivery models.
• Troubleshoot production and performance issues using telemetry, log management, and application performance monitoring tools.
• Promote a culture of continuous learning, innovation, ownership, and knowledge sharing across the team.

Work model

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring 2 days a week in a client or Cognizant office in Toronto, Ontario. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

What you need to have to be considered

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field.
• 5+ years of experience developing enterprise applications using Java technologies.
• Strong hands-on experience with Spring Framework, Spring Boot, and Spring Cloud.
• Experience developing and deploying cloud-native microservices and REST APIs.
• Solid understanding of OAuth 2.0 and OpenID Connect (OIDC) authentication and authorization frameworks.
• Knowledge of secure application development and cloud security best practices.
• Experience with CI/CD tools and DevOps practices, including Jenkins and test automation.
• Strong experience working with relational databases such as Oracle or SQL Server and NoSQL databases such as MongoDB.
• Proven ability to build highly available, low-latency, and resilient distributed systems.
• Experience with observability frameworks, telemetry solutions, and production monitoring.
• Ability to independently analyze, troubleshoot, and resolve complex technical and business challenges.

These will help you stand out

• Experience with modern front-end technologies such as Angular or React and their integration with backend services.
• Familiarity with OpenTelemetry implementation and distributed tracing practices.
• Experience applying resilience patterns, including Circuit Breaker architecture.
• Hands-on experience with log management and monitoring tools such as Splunk and Datadog.
• Experience using Dynatrace for application performance monitoring and root cause analysis.
• Exposure to cloud-native architecture patterns and enterprise-scale system design.
• Experience participating in solution design workshops, technical innovation initiatives, or proof-of-concept development.

We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role

Salary and Other Compensation

Applications will be accepted until November 14th, 2026.

We regularly assess market data to ensure we offer a competitive compensation package for our associates. The base salary for this position ranges between $60,300 – $95,500 per year. Where the successful candidate may fall within the range depends on relevant education, work and/or management experience and other business-related and job-necessary qualifications. This position is also eligible for Cognizant's discretionary annual performance-based bonus, as well as benefits that support your physical, mental and financial wellbeing.