> Markdown version of [/jobs/ext/1989866-principal-software-engineer-ai-llm-applications](https://www.wearedevelopers.com/jobs/ext/1989866-principal-software-engineer-ai-llm-applications). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer AI/LLM Applications - **Company:** Cystems Logic Inc. - **Location:** Bothell, WA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, Amazon Web Services, Data Analysis, Microsoft Azure, BigQuery, Cloud Computing, Databases, Continuous Integration, Software Debugging, Github, Junit, Python (Programming Language), Apache Maven, MongoDB, Cisco Nexus Switches, Node.Js, OpenStack, Mockito, Ansible, Selenium, SoapUI, Software Engineering, SONAR (Symantec), Google Cloud, Postman, ReactJS, Large Language Models, Caching, Jmock, Backend, Git, Containerization, Information Technology, Cassandra, React Native, Front End Software Development, Virtual Agents, Software Coding, Restful APIs, Streamlit Framework, Terraform, Cucumber (Software), Software Version Control, Docker, Jenkins, Programming Languages, Microservices - **Published:** August 8, 2026 - **Apply:** https://www.dice.com/job-detail/27b06dae-c588-4151-a7ec-f10655f20f5b ## About the Role * We need a solid line of JavaScript based full stack candidates. Not Java based full stack. * 5 to 10 years of experience, ideally 7 to 10 years. * Who has a detailed understanding of software development, design, and architecture. * Have expertise in JavaScript, Node JS, React JS and React Native. Experience with Python is added value. * Experience working with cloud technologies, Google Cloud Platform, and Azure. * AI skills. * Onsite and need locals only * We will have hands-on coding interviews at client location, * 7+ years of experience in full stack software development, including front-end, back-end, and database technologies * Bachelor's degree in computer science, software engineering, or a related field preferred * Proficiency in modern programming languages and frameworks such as Python, JavaScript, Java, Next JS, Node.js, React js * Strong working experience with GenAI, LLM Models, MCP, Vector DB, RAG, Vertex AI, Agentic AI frameworks like NGA, ADK or LangChain/LangGraph, creating AI agents. * Strong experience with Cloud platforms like Google Cloud Platform, Azure or AWS and cloud technologies like OpenStack, Terraform, Ansible or Chef * Experience working with LLM observability, analytics, evaluations, testing and annotation using tools like LangSmith, LangFuse, Streamlit, Arize or similar tools. * Strong experience working with AI/ML development * Strong experience working with Databases like Cassandra, MongoDB or similar. * Strong understanding and working experience of microservices architecture, RESTful APIs, Caching and related technologies * Familiarity with containerization and orchestration tools such as Docker and Kubernetes * Proficiency in version control systems like Git, and experience with CI/CD tools such as Jenkins, GitHub, Maven, Nexus, JFrog or Sonar * Strong experience in Unit and Function testing using Junit, Mockito/JMock, Selenium, Robot, Cucumber, SoapUI or Postman * Strong problem-solving, analytical, and debugging skills. * Excellent written and verbal communication skills, with the ability to effectively communicate complex technical concepts to both technical and non-technical audiences. * Demonstrated experience in mentoring and providing technical leadership to other engineers. Nice to have skills: Google CCAI platform (DialogFlow), Vertex AI, Graph QL, BigQuery, Conversation Graph, LLM as Judge. ## Related Videos - [Building AI Applications with LangChain and Node.js](https://www.wearedevelopers.com/videos/1512-building-ai-applications-with-langchain-and-node-js) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [How to Avoid LLM Pitfalls - Mete Atamel and Guillaume Laforge](https://www.wearedevelopers.com/videos/1328-how-to-avoid-llm-pitfalls-mete-atamel-and-guillaume-laforge) - [From boy scouting to redrawing the landscape](https://www.wearedevelopers.com/videos/1140-from-boy-scouting-to-redrawing-the-landscape) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development)