Sr. Software Engineer, Java Full Stack - Agentic ERP Platform

The Senior Software Engineer (Full Stack) is a core member of the Product Delivery engineering team building Rimini Street’s Agentic ERP Platform—a strategic product that enables AI agents to interact with legacy ERP systems including SAP, Oracle E-Business Suite, and JD Edwards. This role contributes across the full technology stack, from backend platform services and MCP (Model Context Protocol) servers to AI agent integration and frontend user interfaces.

Reporting to the Sr. Director, Engineering, this engineer will design, develop, and deliver production-quality software in a modern tech stack spanning Java, Python, and Angular. The ideal candidate is a versatile engineer who thrives working across layers of the stack, takes ownership of features end-to-end, and is energized by building a new platform from the ground up.

Design and develop backend services using Java 21 and Quarkus, including MCP servers, REST APIs, and platform services.

Build and maintain integration components that connect AI agents to enterprise ERP systems (SAP, Oracle EBS, JD Edwards).

Develop data access layers using PostgreSQL, including working with pgvector for vector storage and similarity search.

Implement resilience patterns (circuit breakers, retries, bulkheads) using Resilience4j for production reliability.

Write clean, testable, well-documented code following established engineering standards and architectural patterns.

Develop AI agent components using Python and frameworks such as Pydantic AI or LangChain4j.

Integrate with LLM services through LiteLLM gateway, implementing prompt templates, tool calling, and response handling.

Build and maintain RAG (Retrieval-Augmented Generation) pipelines for contextual knowledge retrieval.

Implement orchestration workflows using Restate for multi-step agent processes with human-in-the-loop checkpoints.

Build user interfaces using Angular and TypeScript, contributing to the platform’s component library and design system.

Develop human-in-the-loop interfaces that allow users to supervise, approve, and intervene in agent actions.

Implement responsive, modern layouts using CSS3, Tailwind CSS, and Angular Material or similar component frameworks.

Create dashboards, admin panels, and monitoring views for agent performance and system health.

Build reusable UI components with clean HTML5 semantics, SCSS/CSS architecture, and consistent styling patterns.

Ensure accessible (WCAG compliant), performant frontend experiences across browsers and devices.

Work with design specifications and wireframes to translate UX designs into pixel-accurate implementations.

Participate in code reviews, design discussions, and technical design reviews.

Write unit tests, integration tests, and contribute to automated testing frameworks.

Contribute to CI/CD pipeline development and deployment automation.

Instrument code with OpenTelemetry for distributed tracing, metrics, and logging.

Collaborate with team members across time zones in a virtual team environment.

Contribute to technical documentation, architecture decision records, and knowledge sharing.

9+ years of professional software engineering experience in full stack development.

Strong backend development experience with Java (Java 11+); experience with Quarkus or Spring Boot.

Working proficiency in Python; experience building services or scripts in Python.

Frontend development experience with Angular (v14+), TypeScript, and modern CSS (Tailwind, SCSS, or CSS-in-JS).

Experience building component libraries or contributing to design systems.

Experience with relational databases, particularly PostgreSQL.

Familiarity with RESTful API design and microservices architecture.

Experience with Git, CI/CD pipelines, and modern development workflows.

Experience working in agile teams with iterative delivery practices.

Java 11+ (Java 17/21 preferred) with strong understanding of modern Java features.

Experience with Quarkus or Spring Boot for building microservices and REST APIs.

Python proficiency for AI/ML integration work and scripting.

Angular (v14+) and TypeScript for frontend development; strong component architecture skills.

Solid CSS3/SCSS skills including responsive design, flexbox, and grid layouts.

Experience with Tailwind CSS or similar utility-first CSS frameworks.

Proficiency with HTML5 semantics and modern web standards.

PostgreSQL and SQL; experience with data modeling and query optimization.

RESTful API design and implementation; familiarity with OpenAPI/Swagger.

Git version control and collaborative development practices.

Understanding of containerization (Docker) and basic Kubernetes concepts.

Experience with AI/ML frameworks: Pydantic AI, LangChain, or LangChain4j.

Familiarity with LLM integration patterns, prompt engineering, and tool calling.

Experience with vector databases (pgvector, Qdrant) and embedding models.

Experience with Angular Material, PrimeNG, or similar Angular component libraries.

Knowledge of web accessibility standards (WCAG 2.1) and cross-browser compatibility.

Experience with frontend testing frameworks (Jasmine, Karma, Cypress, or Playwright).

Knowledge of MCP (Model Context Protocol) or similar agent-tool integration patterns.

Experience with Restate, Temporal, or similar workflow orchestration frameworks.

Familiarity with OpenTelemetry, Jaeger, or Prometheus for observability.

Experience with enterprise integration patterns: messaging, event-driven architecture, RFC/BAPI.

Knowledge of SAP or Oracle EBS integration technologies.

Experience with Resilience4j or similar resilience libraries.

Familiarity with LiteLLM or similar LLM gateway tools.

We are looking for talented, passionate people to help us build our future at Rimini Street . We hire only the best, the most extraordinary professionals and provide compensation, bonuses, and benefits to match the skills of our top-performing team members. Do you thrive in a fast-paced environment, enjoy growing together, and get excited about learning new skills? Are you looking for an opportunity to make a true impact as part of a team of extraordinary professionals? This is the place for you.

Our work is challenging and meaningful. We start and end each day with a sense of achievement and purpose guided by our core values, the Four Cs:

Company We dream big and innovate boldly.

We dream big and innovate boldly.

Colleagues We work with extraordinary people who create a culture of mutual respect and collaboration.

We work with extraordinary people who create a culture of mutual respect and collaboration.

Clients We relentlessly pursue solutions that help clients achieve their goals. Our unmatched client care is rooted in our passion for exceptional service.

We relentlessly pursue solutions that help clients achieve their goals. Our unmatched client care is rooted in our passion for exceptional service.

Community We believe in leaving the world a better place than we found it. With the Rimini Street Foundation, we’ve made positive impacts in six continents for over 425 charities.

We believe in leaving the world a better place than we found it. With the Rimini Street Foundation, we’ve made positive impacts in six continents for over 425 charities.

Nasdaq-listed under ticker symbol RMNI since October 2017

Over 6,300+ signed contracts to date, including Fortune 500 and Global 100 companies

Over 2,000 team members in 23 countries

US and international recognition for industry leadership and philanthropic efforts. See all of our awards and recognitions here: https://www.riministreet.com/company/awards/

Rimini Street is committed to creating a diverse and inclusive environment and is proud to be an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to age, race, color, religion, national origin, sexual orientation, gender or gender identity, disability, protected veteran status, or any other characteristic protected by law.

To learn more about how Rimini Street is redefining the enterprise software support industry, visit http://www.riministreet.com

Please Note: Rimini Street does not accept resumes submitted by recruiting/staffing firms unless specifically requested by Human Resources. Unsolicited resumes will be ineligible for referral fees.