Core Java Developer - Onsite Backend in Columbus

Valiant Technologies LLC; Columbus (OH); On-site; USD 110,000 - 150,000; Full time

Job summary

Valiant Technologies LLC in Columbus, Ohio is seeking an experienced Core Java Developer for an onsite role. You will work on high-performance backend applications using Core Java, multithreading, and concurrency, with a strong emphasis on data structures, algorithms, and scalable design.

Responsibilities include building REST APIs with Spring Boot, optimizing performance, writing efficient SQL, participating in code reviews and Agile practices, and collaborating with cross-functional teams to

Qualifications

• Strong hands-on experience with Core Java, preferably Java 8 or later.
• Excellent knowledge of OOP, collections, exception handling, generics, and concurrency.
• Experience with multithreading, synchronization, and JVM performance tuning.
• Strong understanding of data structures, algorithms, and design patterns.
• Experience with Spring Framework, Spring Boot, and REST APIs.
• SQL and relational database experience.
• Familiarity with Git, Maven/Gradle, and unit testing frameworks.
• Strong analytical and problem-solving skills.

Responsibilities

• Develop and maintain high-performance backend applications using Core Java.
• Apply object-oriented programming, collections, multithreading, concurrency, and design patterns.
• Build and maintain REST APIs and microservices using Spring Boot.
• Optimize application performance, troubleshoot issues, and support production systems.
• Work with relational databases and write efficient SQL queries.
• Participate in code reviews, unit testing, debugging, and Agile development activities.
• Collaborate with cross-functional teams to deliver reliable enterprise applications.

Skills

Core Java

Multithreading

Concurrency

Data structures

Algorithms

OOP

Exception handling

Generics

Spring Framework

Spring Boot

REST APIs

SQL

Relational DB

Maven/Gradle

Tools

Git

Maven/Gradle

Job description

Valiant Technologies LLC in Columbus, Ohio is seeking an experienced Core Java Developer for an onsite role. You will work on high-performance backend applications using Core Java, multithreading, and concurrency, with a strong emphasis on data structures, algorithms, and scalable design.

Responsibilities include building REST APIs with Spring Boot, optimizing performance, writing efficient SQL, participating in code reviews and Agile practices, and collaborating with cross-functional teams to