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Sr. Application Developer Bilingual; EnglishKorean

Job in Ridgefield Park, Bergen County, New Jersey, 07660, USA
Listing for: Woongjin, Inc
Full Time position
Listed on 2026-01-05
Job specializations:
  • Software Development
    Java Developer, Software Engineer
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below
Position: Sr. Application Developer Bilingual (English Korean)

Responsibilities

  • Design develop and maintain robust scalable applications and modules writing clean efficient and well-documented code
  • Manage the entire software development lifecycle including planning prioritizing testing and releases often using Agile methodologies
  • Lead guide and mentor junior developers conducting code reviews and ensuring adherence to best practices
  • Work closely with project managers business analysts designers and other engineers to define requirements and deliver innovative solutions
  • Implement automated testing debug issues troubleshoot complex problems and ensure application security and performance
  • Contribute to high-level application design and database architecture
  • Participate in internal and external meetings to gather the business requirements and suggest solutions
  • Analyze the business requirements and suggest the best practice to apply to the business requirements
  • Write clean code to produce fully functional backend processes and frontend UI modules
  • Develop a new or existing system of frontend UI and APIs
  • Write unit integration and production test scenarios
  • Troubleshoot and debug to optimize application performance
  • Liaise with the development team to identify and plan new features
  • Research and suggest new technologies applications and protocols
  • Be an individual contributor when it comes to designing and developing frameworks and critical pieces of code that have a wider impact
  • Create detailed technical plans for the execution and implementation of projects
  • Be available to answer technical questions clarifications and clear obstacles for the team
  • Being transparent with the team about challenges failures and successes
  • Writing development progress reports
Qualifications
  • 10 years of application development experience
  • Bilingual (English / Korean)
  • Bachelors degree in computer science engineering or a related field
  • Extensive knowledge of Java development. This includes the whole process from the first line of code to implementation in the production environment
  • Deep knowledge of operating systems including but not limited to
  • Proficiency with writing automated tests in JUnit Espresso Mocha Jest Enzyme XCTest etc.
  • Proficiency in Java with a good understanding of its ecosystems
  • Sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts
  • Familiarity with different design and architectural patterns
  • Skill for writing reusable Java libraries
  • Know-how of Java concurrency patterns
  • Good understanding of the concepts of MVC (Model-View-Controller) Pattern JDBC (Java Database Connectivity) and RESTful web services
  • Experience in working with popular web application frameworks like Play and Spark
  • Relevant Knowledge of Java GUI frameworks like Swing SWT and AWT according to project requirements
  • Extensive knowledge of the class loading mechanism in Java
  • Experience in handling external and embedded databases such as Oracle MS SQL etc.
  • Understanding basic design principles behind a scalable application
  • Skilled at creating database schemas that characterize and support business processes
  • Basic knowledge of JVM (Java Virtual Machine) its drawbacks weaknesses and workarounds
  • Implementing automated testing platforms and unit tests
  • In-depth knowledge of code versioning tools for instance Git
  • Expertise in continuous integration
  • Experience in Java Server Pages (JSP) and servlets Web frameworks like Struts and Spring
  • Web Technologies like HTML JavaScript CSS JQuery
  • Abstract classes and interfaces
  • Constructors lists maps sets
  • File IO and serialization Exceptions and Generics
  • Java Keywords like static volatile synchronized transient etc
  • Multithreading and Synchronization
  • Experience with profiling and debugging Java-based applications and products
  • Experience integrating with backend systems preferred such as ERPs WMS OMS etc.
  • Solid knowledge of performance Improvement best practices
  • Experience in a similar role would be advantageous
  • Willingness to build professional relationships with staff and clients
  • Excellent communication motivational and interpersonal skills
Additional Information

All your information will be kept confidential according to EEO guidelines.

NO C2C

Remote Work:
No

Employment Type:

Contract

Key Skills

APIs,MVC,SQL,Spring,.NET,ASP.NET,Microsoft SQL Server,C#,Angular,Application Development,JavaScript,Java

Experience:

years

Vacancy: 1

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