Java Backend Developer (with hands-on in kotlin) | Phoenix, AZ

Tech Mirrors; Phoenix (AZ); On-site; USD 68,880 - 71,635; Full time

Job summary

Tech Mirrors in Phoenix, AZ is seeking a Java Backend Developer (hands-on in Kotlin) for a long‑term contract. The role is onsite in Phoenix and offers an hourly rate of $50-52 on a C2C basis.

You will design, develop, and maintain high‑performance backend services, collaborate with cross‑functional teams to define API contracts, optimize for scalability, and guide code quality and deployment automation. 5-6 years of experience required.

Qualifications

• 5-6 years of backend development experience.
• Strong knowledge of Java/J2EE and Kotlin.
• Experience building RESTful APIs and web services.
• Familiarity with JSON, data structures, and relational databases.
• Experience with distributed multi‑tier systems and SQL/NoSQL databases.
• Hands-on experience with code quality, version control, and CI/CD.

Responsibilities

• Design, develop, and maintain high‑performance backend services and APIs.
• Collaborate with cross‑functional teams to gather requirements and architect solutions.
• Optimize backend systems for performance, scalability and reliability.
• Implement best practices for code quality, testing, and deployment automation.
• Conduct code reviews and mentor junior engineers.
• Troubleshoot production issues and perform root cause analysis.
• Stay updated on new tools and cloud deployment trends.
• Work with DevOps to deploy backend services in cloud environments (AWS/Azure/Google Cloud).
• Collaborate with frontend teams to define API contracts and ensure seamless integration.

Skills

Java/J2EE

Spring Boot

Kotlin

RESTful APIs

Web Services

Distributed systems

SQL/NoSQL

Git and CI/CD

Testing: Selenium

Agile tools

Tools

Jenkins

Nexus

Maven

GIT

JIRA

REST Assured

Cucumber

Selenium

Job description

Role:Java Backend Developer (with hands‑on in kotlin)

Location: Phoenix, AZ (Onsite)

Duration: Long Term Contract

Rate: $50-52/hr on C2C

Java Backend Developer (with hands‑on in Kotlin)

5-6 Years

Essential Skills

• Expertise with Java/J2EE, Springboot, Kotlin
• Expertise with building RESTful APIs
• Thorough understanding of JSON, Web Service technologies, and data structure fundamentals
• Experience with distributed (multi-tiered) systems, algorithms, and relational databases
• Confirmed experience with object‑oriented design and coding in a variety of languages
• Knowledge of Agentic AI
• Knowledge of code quality parameters and GIT branching concepts
• Knowledge of SQL and NoSQL databases (Oracle/DB2, Cassandra, Couchbase)
• Knowledge of automated testing concepts using Selenium, REST Assured, Cucumber
• CI/CD concepts with exposure to tools such as Jenkins, Nexus, Maven, GIT
• Expertise in agile life‑cycle management tools (JIRA/Rally), software testing standards, methods, and conventions

Responsibilities

• Design, develop, and maintain high‑performance backend services and APIs.
• Collaborate with cross‑functional teams to gather requirements, architect solutions, and implement features that meet business needs.
• Optimize backend systems for performance, scalability, and reliability, ensuring smooth operation under high load.
• Implement best practices for code quality, testing, and deployment automation.
• Conduct code reviews, provide constructive feedback, and mentor junior engineers to foster a culture of continuous learning and improvement.
• Troubleshoot and debug production issues, conduct root cause analysis, and implement solutions to prevent recurrence.
• Stay updated on emerging technologies and industry trends, evaluate new tools and frameworks to improve efficiency and productivity.
• Work closely with DevOps teams to deploy and manage backend services in cloud environments (AWS, Azure, Google Cloud).
• Collaborate with frontend engineers to define API contracts and ensure seamless integration between frontend and backend systems.