> Markdown version of [/jobs/ext/3546936-java-full-stack-developer](https://www.wearedevelopers.com/jobs/ext/3546936-java-full-stack-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Full-Stack Developer - **Company:** ApTask - **Location:** New York, NY, United States - **Experience:** Expert - **Salary:** $114,400.0 - $124,800.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Applications Architecture, Data Integrity, Data Structures, IBM DB2, Database Development, Electronic Data Interchange (EDI), Design of User Interfaces, JSON, Object-Oriented Software Development, Oracle (Applications), Performance Tuning, Software Engineering, Software Systems, SQL Databases, Web Applications, Freeform SQL, ReactJS, Snowflake, Sybase, Database Performance, Data Layers, Build Management, AngularJS, Information Technology, Restful APIs, Microservices - **Published:** October 2, 2026 - **Apply:** https://www2.jobdiva.com/portal/?a=4ujdnwqsdebu7m13em5f0pt5dw80o500d7dv9cbq5ebzngb7yk0n43mjtefnbx0d&compid=0/jobs/29393829#/jobs/29393829 ## About the Role * At least 10+ years' relevant experience in Java and Full-Stack * Bachelor's degree in computer science or related field with the mentioned relevant years of professional experience as a developer in the data and analytics space. * Strong experience with object-oriented languages: Java * Strong experience with user interface design & development using Angular, React, Javascript etc. * Strong experience in database development (Snowflake, Oracle/Sybase/DB2) in designing schema, complex procedures, complex data scripts, query authoring (SQL), and performance optimization. * Strong problem-solving skills with ability to analyze and understand data * Strong knowledge of software development and the system implementation life cycle is a must. * Experience developing, testing & supporting multi-tier technology architectures. ## Description * Design and build end-to-end web applications across the full technology stack, including user interfaces, APIs, and data layers. * Develop scalable and resilient solutions using modern application architecture and microservices patterns. * Create and maintain REST APIs and data exchange services leveraging multiple data formats including JSON, flat files, and columnar data structures. * Design metadata-driven and configuration-based solutions to enable flexibility and ease of change. * Model and implement database schemas, optimize complex SQL queries, and improve database performance across large-scale platforms. * Develop and support batch and event-driven processing solutions with a focus on concurrency, data integrity, and performance. * Collaborate with agile squads to deliver high-quality software solutions and support continuous improvement initiatives. * Participate in testing, deployment, production support, and knowledge-sharing activities to ensure operational excellence.