Sr. Java/Python Full Stack Developer

Ultimate Staffing; Plano (TX); On-site; USD 69,000 - 72,000; Full time

Job summary

Ultimate Staffing in Plano, TX seeks a senior Java/Python Full Stack Developer to build and operate enterprise web applications using Java/J2EE and Spring, with AI-enabled Python features. You will deploy, troubleshoot, and optimize applications across Linux and Windows environments, working with global IT teams and CI/CD processes.

The role emphasizes production support, code quality, API design, database optimization, and collaboration with cross-functional teams, for a 1-year W2 contract with

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or related field.
• Must have web UI side technical skills: Angular5, Bootstrap, JQuery, HTML/CSS, Ajax, JSON, Java script.
• 9+ years of experience in enterprise application development, operation, and production support.

Responsibilities

• Design, develop, test, and maintain full stack applications and services using Java and Python.
• Design, develop, and maintain end-to-end solutions using J2EE technologies for both front-end and back-end components.
• Develop server-side logic using Java and J2EE frameworks (Spring, Hibernate, etc.). Design and implement RESTful APIs to facilitate seamless communication between front-end and back-end components
• Design and optimize database schemas, queries, and transactions. Strong SQL skills; work with MySQL, Oracle, PostgreSQL and NoSQL databases
• Write clean, maintainable, and efficient code; conduct unit testing and code reviews
• Support the integration and fine-tuning of AI/LLM-based features into existing and new applications

Skills

Java

Python

Spring Framework

SQL

REST APIs

Angular

Git

Jenkins

CI/CD

Linux

Education

Bachelor's degree

Tools

Maven

Gradle

Kubernetes

Docker

MySQL

PostgreSQL

Oracle

Git

Job description

Job Title: Java/Python Full Stack Developer

Pay Rate: $50-$52/hr. W2

Contract Period: 1 year

Position Summary

We are looking for a motivated senior full stack developer to join our team in Plano, TX. This position is responsible for the development, deployment, and operation support of enterprise web applications based on Java/J2EE and Spring framework. The primary responsibility includes analyzing application issues, implementing code changes, managing application releases, performing production deployments, and providing stable operation support for business-critical applications. The role will work closely with business users, development teams, infrastructure teams, and global IT organizations to ensure application availability, performance, and continuous improvement. In addition to traditional enterprise application operation responsibilities, this position will support digital transformation initiatives by developing AI-enabled solutions using Python, Large Language Models (LLM), and Agentic AI technologies. The ideal candidate will have strong Java/Spring application development and operational experience, with the ability to expand into AI application development including AI Agents, workflow automation, and intelligent application services.

Key Responsibilities

• Design, develop, test, and maintain full stack applications and services using Java and Python.
• Design, develop, and maintain end-to-end solutions using J2EE technologies for both front-end and back-end components. Collaborate with cross-functional teams to understand business requirements and translate them into technical specifications
• Develop server-side logic using Java and J2EE frameworks (Spring, Hibernate, etc.). Design and implement RESTful APIs to facilitate seamless communication between front-end and back-end components
• Design and optimize database schemas, queries, and transactions. This position especially needs strong SQL skills. Experience with relational databases (e.g., MySQL, Oracle, PostgreSQL) and NoSQL databases
• Write clean, maintainable, and efficient code. Conduct thorough unit testing and participate in code reviews to ensure high-quality deliverables
• Support the integration and fine-tuning of AI/LLM-based features into existing and new applications.
• Assist in building and maintaining CI/CD pipelines and other DevOps automation.
• Deploy, configure, and troubleshoot applications on Linux (Ubuntu) and Windows Server environments.
• Use Git for version control and participate in code reviews and pull requests.
• Participate in Agile/Scrum ceremonies, sprint planning, and cross-functional team meetings.
• Document technical processes, code changes, and system configurations.
• Troubleshoot and resolve bugs and production issues in a timely manner.

Required Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or related field.
• Must have web UI side technical skills: Angular5, Bootstrap, JQuery, HTML/CSS, Ajax, JSON, Java script
• 9+ years of experience in enterprise application development, operation, and production support.
• Experience with version control systems (Git), build tools (Maven, Gradle), and continuous integration/delivery
• Experience with DevOps practices and tools including CI/CD pipeline, Git, Jenkins, Kubernetes, or cloud-based deployment environments
• Strong experience in Java-based J2EE Web Application development and maintenance.
• Hands-on experience with Spring Framework (Spring MVC, Spring Boot, Spring Security, etc.).
• Experience in application deployment, release management, troubleshooting, and production incident resolution.
• Strong understanding of Web application architecture, REST API, database integration, and middleware technologies.
• Experience with SQL and relational databases such as Oracle, PostgreSQL, or similar databases.
• Experience with software development lifecycle (SDLC) and IT service management processes.
• Strong communication skills and the ability to effectively interact with cross-functional teams
• Foundational understanding of AI/LLM concepts and practical applications

Preferred Qualifications

• Experience supporting cloud platforms such as AWS, Azure, or Samsung Cloud Platform (SCP).
• Experience with application monitoring, logging, and performance troubleshooting.
• Experience developing Python-based applications or automation scripts.
• Knowledge or hands-on experience with Generative AI, Large Language Models (LLM), and AI Agent development.
• Experience with Agentic AI frameworks such as LangChain, LangGraph, AutoGen, CrewAI, or similar technologies.
• Experience building AI-powered workflow automation, RAG (Retrieval Augmented Generation) applications, or LLM-based services.
• Ability and willingness to combine enterprise application development skills with emerging AI technologies.

All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, Los Angeles County Fair Chance Ordinance, and San Francisco Fair Chance Ordinance.