Sr Java Developer (Langchain) at Cognisol in Phenix, Virginia, United States
- Company: Cognisol
- Location: Phenix, Virginia, United States
- Posted: Sep 18, 2026
- Type: Full-time
- Salary: $60/ Hr on W2 / 1099
- Experience: 8+ years
Overview
Job Title :Sr Java Developer (Langchain) client : Compunnel Duration: 12 Months Location :Charlotte, NC Or Phoenix, AZ (Day 1 Onsite) Rate : $60/ Hr on W2 / 1099 Years of Exp- 8+ years Notice: Immediate to 15 days Inperson Client Interview
Job description
- Job Title :Sr Java Developer (Langchain)
- client : Compunnel
- Duration: 12 Months
- Location :Charlotte, NC Or Phoenix, AZ (Day 1 Onsite)
- Rate : $60/ Hr on W2 / 1099
- Years of Exp- 8+ years
- Notice: Immediate to 15 days
- Inperson Client Interview
Responsibilities
- Work with stakeholder to gather the requirements
- Develop, test and deploy APIs
- Writing tested, idiomatic, and documented Java Code
- Cooperating with the front-end developer in the process of integrating the RESTful API
- Communicating with external web services
- Producing, maintaining, and modifying REST APIs
- Ensuring APIS are developed using industry standard best practices
- Fixing any issues or bugs that arise
Requirements
- 8+ years of hands-on experience in development of RESTful APIs and Microservices using technology stack: Java/J2EE, Spring framework, Spring Batch, Kubernetes Services, Oracle DB, Apigee/API Gateway
- Strong microservices and Spring Boot experience. (Mandatory)
- Experience in implementing and integrating AI models, including Large Language Models (LLMs), into applications. (Recommended)
- Experience utilizing Langchain frameworks to enhance AI capabilities and performance. (Recommended)
Skills
Required
- Java/J2EE
- Spring framework
- Spring Batch
- Kubernetes Services
- Oracle DB
- Apigee/API Gateway
- Microservices
- Spring Boot
- Cloud experience (Google/Azure/AWS)
- Python
- BDD and TDD
- Test-driven design & development
Preferred
- AI models integration
- Large Language Models (LLMs)
- Langchain frameworks