Full stack developer

job summary: We are looking for an experienced Java Developer with a strong focus on AI driven and data enabled solutions. This role is ideal for a senior engineer who wants to remain hands on while also having a real influence on technical direction, quality, and team growth. As a Senior Java Developer, you will play a key role in building and evolving applications, contributing to architectural decisions, and supporting less experienced engineers through mentoring and technical guidance. location: Boston, Massachusetts job type: Contract to Perm salary: $70 - 75 per hour work hours: 8am to 5pm education: Bachelors responsibilities: Design, develop, and maintain high quality Java based applications in a complex, distributed environment. Proficiency in modern front-end frameworks (React, Angular) and back-end technologies (Python, Java/Spring Boot, Node.js) to build scalable, end-to-end applications. Contribute to AI enabled and data driven solutions, working closely with data and product teams. Take ownership of features from requirements analysis through implementation, deployment, and production support. Participate in technical design and architecture discussions, influencing solutions and best practices. Perform code reviews and promote clean code, scalability, and maintainability. Act as a technical mentor for less experienced developers, sharing knowledge and setting development standards. Support application evolution by driving feature enhancements and technical improvements. Work with CI/CD pipelines and deployment processes to ensure reliable delivery. Troubleshoot, debug, and resolve complex issues in existing applications. Collaborate effectively in Agile, distributed teams (Scrum / Kanban). Familiarity with Retrieval-Augmented Generation patterns, embedding models, vector databases, and semantic search techniques to ground AI outputs in enterprise content. Experience working with large language models and exposure to agentic AI frameworks (e.g., LangChain, LangGraph, CrewAI) for building multi-step, tool-augmented workflows and autonomous AI agents Communicate clearly with stakeholders, helping translate technical topics into understandable outcomes and impacts. Technical Scope Core Java development Spring ecosystem: Spring MVC, Spring Data, Spring Security Web applications using Angular, TypeScript, RxJS, HTML, CSS SQL and NoSQL databases, with a strong focus on data modeling and performance Messaging queues and asynchronous processing Cloud development on OpenShift CI/CD pipelines and deployment automation Unix/Linux environments Agentic Frameworks (langchain, Langgraph, etc) qualifications: 5+ years of hands on Java development experience Strong experience with Spring and enterprise grade backend systems Solid understanding of design patterns and scalable architecture principles Experience with SQL and NoSQL databases and optimization techniques Experience with messaging systems Hands on experience with Azure cloud services Experience working in Agile environments Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status. At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact . Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility). This posting is open for thirty (30) days. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.