Senior Java Full Stack Developer
All IT Solutions
United States · O Fallon, MO
Workplace Type — Hybrid
Employment Type — Contract
We are currently seeking a qualified Senior Java Full Stack Developer to support this engagement. Please review the complete requirements, work location, employment type, and screening questions before applying. Candidates whose experience closely matches the position will be contacted directly by the AIS recruiting team.
Job Summary
All IT Solutions is seeking a Senior Java Full Stack Developer to join a client engagement.
Responsibilities
- Develop enterprise applications using a Java technology stack with Angular or React as front-end technologies
- Participate in gathering and refining business requirements
- Ensure software designs align with Client Enterprise Architecture and leverage enterprise services
- Ensure product development meets Client business needs
- Apply Client standard development methodologies, follow technology standards, and ensure projects are appropriately documented
- Ensure software and system design support the goal of zero downtime in production
- Work closely with business partners on product definition, roadmaps, business case development, and overall team direction
- Respond to operational and business concerns related to future programs, projects, or enhancements to ensure consistent delivery of quality services
- Support appropriate certifications and compliance requirements, including PCI, GLBA, Safe Harbor, and others
- Drive performance engineering of the enterprise software architecture and provide guidance, advice, or training to other application developers
- Improve and expand the existing platform by ensuring it is resilient, secure, and scalable
- Use AI tools effectively as part of daily development work, including tools such as Claude Code, Copilot, or similar platforms
- Apply AI-assisted coding, testing, documentation, and troubleshooting
- You will design and build the next-generation Decision Management Platform, the real-time system that scores and approves billions of payment transactions. This is a hands-on role where you will write code, run prototypes, and use AI coding tools every day to ship faster and at higher quality. You will be joining a high-growth team that is actively expanding to meet increasing scale and impact. You will work directly with senior engineers, architects, and product managers to deliver features that make the platform faster, more reliable, and more cost-efficient to run
Required Qualifications
- Bachelor’s degree in information systems, Information Technology, Computer Science, Engineering, or equivalent work experience
- More than 7 years of industry experience
- Excellent communication skills, with the ability to interact across multiple organizational levels and with internal and external customer our client Strong analytical and problem-solving abilities, with the ability to quickly adapt to new technologies, methodologies, and systems
- High energy, strong attention to detail, and the ability to function independently under pressure with a high degree of initiative and self-motivation
- Strong interpersonal and relationship-building skills, with a solid track record of developing internal and external partnerships
- Proficiency with J2EE, Java 8 or higher, JSP, Servlets, Spring 5, Hibernate, and databases such as Oracle and SQL Server
- Experience with SQL and NoSQL databases such as MySQL, PostgreSQL, and MongoDB
- Experience with tools such as Maven, Gradle, Jenkins, Chef, and Sonar, as well as methodologies such as Waterfall and Agile
- Experience with LLM integration, prompt engineering, and agentic patterns
- Java 8+, J2EE, Spring, Hibernate
- Angular/React front-end development
- REST/SOAP APIs and enterprise application development
- Cloud-Native / AWS or Other Cloud Platforms
- CI/CD and engineering tools like Jenkins, Maven, Gradle, Chef, and Sonar
- GenAI / AI-Enabled Engineering
- Ability to leverage GenAI tools to improve developer productivity
- Explore practical GenAI use cases for modernization, automation, and platform efficiency
Preferred Qualifications
- Experience with web services (SOAP/RESTful), servers (WebSphere, JBoss, Tomcat), HTML, JavaScript, jQuery, React or Angular, and IDEs such as Microsoft Visual Studio or Eclipse is a plus
ABOUT ALL IT SOLUTIONS LLC
Headquartered in Mount Laurel, New Jersey, All IT Solutions LLC is a technology and workforce solutions company serving government and commercial organizations throughout the United States. AIS provides IT staffing and staff augmentation, cybersecurity, IT consulting, custom software development, cloud services, data engineering, artificial intelligence, application development, and related technology solutions.
AIS is an NMSDC/EMSDC-certified Minority Business Enterprise and an NYC Department of Small Business Services-certified M/WBE. We participate in E-Verify and are committed to maintaining professional, transparent, and compliant hiring practices.
EQUAL EMPLOYMENT OPPORTUNITY
All IT Solutions LLC is an equal opportunity employer. Employment decisions are made based on qualifications, merit, performance, and legitimate business requirements without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity or expression, national origin, age, disability, genetic information, military or veteran status, or any other characteristic protected by applicable federal, state, or local law.
Reasonable accommodations are available to qualified applicants with disabilities during the application and interview process.
RECRUITMENT NOTICE
All IT Solutions LLC is a staffing and technology services company and may receive fees or compensation from client organizations for recruiting, staffing, placement, or workforce services. Candidates are never charged an application, recruitment, placement, or interview fee by All IT Solutions LLC.
Any commercial rates, fees, or staffing arrangements are between All IT Solutions LLC and its clients and do not require payment from the candidate.
Official recruiting communications will come from an authorized All IT Solutions representative or an @allitsolutions.us email address.
Apply
Apply Now: https://careers.allitsolutions.net/jobs/senior-java-full-stack-developer-2026-d94d40ed/apply
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