Principal Full-Stack Engineer

Strong ReactJS / Node.js / Bootstrap AWS and/or Azure SQL / RDBMS SQL Server, PostgreSQL NOW HIRING: Principal Full-Stack Engineer Location: Richardson, TX Work arrangement: Hybrid / Work from Office Employment Type: Contract Experience: 15+ Years Interview: Client Face-to-Face Interview Required Work Arrangement: Hybrid Role Type: Principal / Senior Individual Contributor About The Role We are seeking an experienced Principal Full-Stack Engineer to design, build, and operate scalable enterprise applications using a modern Java, Python, and ReactJS technology stack. This is a highly hands-on Principal-level individual contributor role with technical leadership responsibilities. The ideal candidate will have deep expertise across backend development, frontend engineering, cloud-native microservices, DevSecOps, and Generative AI, along with the ability to drive architecture and mentor engineering teams. Must-Have Skills 15+ years of hands-on software development experience Strong Java 17+ / Spring / Spring Boot / Hibernate Strong ReactJS / Node.js / Bootstrap Hands-on Python Microservices & Event-Driven Architecture Kafka or RabbitMQ REST APIs AWS and/or Azure SQL / RDBMS SQL Server, PostgreSQL NoSQL MongoDB, Elasticsearch Docker / Kubernetes CI/CD & DevSecOps OAuth 2.0 / OpenID Connect / JWT LLMs / Generative AI / RAG / Embeddings Agentic AI workflows Strong architecture and technical leadership experience Key Responsibilities Own architecture decisions and establish technical direction. Design and develop scalable full-stack enterprise applications. Build Java/Spring Boot microservices, Python services, and ReactJS applications. Integrate LLMs, RAG pipelines, embeddings, and agentic AI into production applications. Lead end-to-end delivery from architecture and design through deployment. Design event-driven solutions using Kafka/RabbitMQ. Develop and optimize REST APIs, database schemas, and SQL queries. Deploy and operate cloud-native applications on AWS/Azure. Drive CI/CD, DevSecOps, security, testing, and engineering best practices. Troubleshoot complex production issues and lead root-cause analysis. Mentor junior and mid-level engineers. Conduct code reviews and enforce architectural and coding standards. Collaborate with Product, Design, Data Science, ML, DevOps, and executive stakeholders. Translate business requirements into scalable technical solutions. AI / Generative AI Experience Practical experience integrating OpenAI, Anthropic Claude, Azure OpenAI, or AWS Bedrock. Experience with Prompt Engineering, RAG, Embeddings, and Vector Databases. Experience building Agentic AI workflows. Experience operationalizing AI/ML models in production. Knowledge of responsible AI, evaluation, guardrails, data privacy, and hallucination mitigation. Exposure to LangChain, LlamaIndex, or Hugging Face is a plus. Good to Have Palantir Foundry experience PySpark Transforms TypeScript Functions Palantir Workshop Enterprise data integration and analytics AI/ML frameworks and tooling Leadership Expectations Principal-level architecture and technical decision-making Strong mentoring and technical leadership Cross-functional stakeholder management End-to-end project ownership Strong communication and problem-solving skills Ability to balance delivery, scalability, security, and technical debt Strong Agile / DevOps mindset #J-18808-Ljbffr SIDRAM TECHNOLOGIES