Principal Full-Stack Engineer

NOW HIRING: Principal Full-Stack EngineerLocation: Richardson, TX Hybrid / Work from OfficeEmployment Type: ContractExperience: 15+ YearsInterview: Client Face-to-Face Interview RequiredWork Arrangement: HybridRole Type: Principal / Senior Individual ContributorAbout The RoleWe 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 Skills15+ years of hands-on software development experienceStrong Java 17+ / Spring / Spring Boot / HibernateStrong ReactJS / Node.js / BootstrapHands-on PythonMicroservices & Event-Driven ArchitectureKafka or RabbitMQREST APIsAWS and/or AzureSQL / RDBMS SQL Server, PostgreSQLNoSQL MongoDB, ElasticsearchDocker / KubernetesCI/CD & DevSecOpsOAuth 2.0 / OpenID Connect / JWTLLMs / Generative AI / RAG / EmbeddingsAgentic AI workflowsStrong architecture and technical leadership experienceKey ResponsibilitiesOwn 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 ExperiencePractical 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 HavePalantir Foundry experiencePySpark TransformsTypeScript FunctionsPalantir WorkshopEnterprise data integration and analyticsAI/ML frameworks and toolingLeadership ExpectationsPrincipal-level architecture and technical decision-makingStrong mentoring and technical leadershipCross-functional stakeholder managementEnd-to-end project ownershipStrong communication and problem-solving skillsAbility to balance delivery, scalability, security, and technical debtStrong Agile / DevOps mindsetSEND RESUMErachael@sidramtech.comPlease Share YourUpdated ResumeWork AuthorizationCurrent LocationAvailabilityContact DetailsHashtags#PrincipalEngineer #PrincipalFullStackEngineer #FullStackEngineer #JavaDeveloper #Java17 #SpringBoot #ReactJS #Python #Microservices #Kafka #AWS #Azure #GenerativeAI #GenAI #LLM #RAG #AgenticAI #DevSecOps #CloudNative #AIJobs #TexasJobs #RichardsonTX #DallasJobs #HybridJobs #ContractJobs #TechJobs #HiringNow #SidramTechnologies