Remote Senior Backend Engineer - Java/Kotlin APIs

Cognizant; Honolulu (HI); Remote; USD 63,000 - 100,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Life Insurance

Paid Holidays

Paid Time Off

401(k)

Disability Insurance

Parental Leave

Employee Stock Purchase Plan

Job summary

Cognizant seeks a Senior Backend Engineer (Java/Kotlin) to design, build, and support scalable backend platforms and APIs powering critical business applications. You will work with engineering, product, security, and partner teams to deliver secure, cloud-native solutions while serving as a technical advisor for integration initiatives.

In this role, you will design, develop, and maintain backend services, collaborate on REST APIs/GraphQL, implement OAuth-based security, and drive CI/CD

Qualifications

• 8+ years of software engineering experience with strong Java and Kotlin.
• Hands-on experience building RESTful APIs, GraphQL services, and microservice-based architectures.
• Strong proficiency with Spring Boot and modern backend development practices.
• Experience implementing OAuth 2.0, authentication, authorization, and API security controls.
• Experience with cloud platforms such as AWS or GCP.
• Proficiency with containerization and orchestration technologies, including Docker and Kubernetes.
• Experience building and maintaining CI/CD pipelines and working in Git-based development environments.
• Hands-on experience with automated testing frameworks such as JUnit, Mockito, or similar tools.
• Strong understanding of distributed systems and API integrations.
• Demonstrated ability to troubleshoot and resolve complex production issues.
• Excellent communication, collaboration, and stakeholder management skills.

Responsibilities

• Design, develop, and maintain scalable backend services and microservices using Java and/or Kotlin.
• Serve as a technical consultant to internal and external stakeholders, providing guidance on API capabilities and integration best practices.
• Collaborate with partner teams to onboard, troubleshoot, and resolve integration challenges involving REST APIs, GraphQL services, and OAuth-based authentication.
• Gather and analyze business and technical requirements and translate them into secure, scalable technology solutions.
• Create and maintain technical documentation, integration guides, and sample applications to support developers and partners.
• Enhance application performance, reliability, monitoring, and observability in cloud-native environments.
• Implement and support automated testing frameworks, CI/CD pipelines, and deployment processes.
• Partner with product, engineering, and security teams to ensure solutions meet compliance, security, and operational standards.
• Troubleshoot and resolve complex production issues within distributed systems and microservice architectures.
• Contribute to continuous improvement initiatives, driving engineering excellence and operational efficiency.

Skills

Java/Kotlin development

REST API design

GraphQL

Spring Boot

Cloud platforms

Tools

Spring Boot

Docker

Kubernetes

Git

JUnit/Mockito

OAuth 2.0

Job description

Cognizant seeks a Senior Backend Engineer (Java/Kotlin) to design, build, and support scalable backend platforms and APIs powering critical business applications. You will work with engineering, product, security, and partner teams to deliver secure, cloud-native solutions while serving as a technical advisor for integration initiatives.

In this role, you will design, develop, and maintain backend services, collaborate on REST APIs/GraphQL, implement OAuth-based security, and drive CI/CD