> Markdown version of [/jobs/ext/4627112-principal-software-engineer-ai-engineering](https://www.wearedevelopers.com/jobs/ext/4627112-principal-software-engineer-ai-engineering). 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 Engineering - **Company:** Context Labs - **Location:** Somerville, MA, United States - **Experience:** Expert - **Salary:** $170,000 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Java Virtual Machine (JVM), Spring Framework, PostgreSQL, Language Modeling, MySQL, NoSQL, OpenAI, Software Systems, Systems Integration, Chatbots, Large Language Models, Kubernetes, Information Technology, Software Coding, Docker, Microservices - **Published:** November 7, 2026 - **Apply:** https://www.juju.com/job/7_3DFA4B9FA1E320F7255C05453F5E20C4 ## About the Role (LLMs) to improve performance on specific tasks.Proficiency in designing and optimizing prompts to elicit desired responses from language models.Experience with integrating API services.Proficiency in unit and functional testingHands-on experience in building and deploying conversational AI systems, including chatbots and virtual assistants.Strong coding skills in Java or other JVM languages (e.g., Scala) for developing scalable AI solutions.Experience with disparate Java frameworks such as Spring/Quarkus/Helidon etc.Proficiency with Docker based microservice architectures and the Kubernetes platform.Proficiency with MySQL, PostgreSQL, or equivalent RDBMSExperience with NoSQL/NewSQL databases.Proficiency in source code managementPreferred Experience:Experience with functional programmingExperience with OpenAI APIA bachelor's degree in computer science or related fieldAnnual Base Compensation Range: $170,000 - $235,000Why you'll like it here:Context Labs is collaborative at its core. You'll work within your team and across the organization allowing for continuous learning and discovery.We set goals that matter and provide value in all that we do, from building meaningful products to positively impacting carbon reduction and climate change.Context Labs' mission is to transform complex data into continuously proven information. ## Description Working as an integral leader within the development team, the engineer will lead many aspects of developing our AI engineering systems; as well as provide thought leadership, upskilling of less senior engineers, and taking part in defining strategic linkages across the company's products., Conduct code reviewsLead technical talks on topics relating to building, scaling, and performance of AI systems.Oversee the ongoing maintenance of related AI based systems.Collaborate as a member of an agile team to get products developed and completed with best-in-class software development.Coach and mentor members of your team through the variety of technological, and methodological challenges they face day-today.Coordinate across a distributed team spanning multiple time zones.Anything else as may reasonably be required by the company.Experience & Skills:10+ years of experience in professional software systems developmentGreat communication skillsBig picture orientation with strong attention to detailComfort in dealing with highly abstract concepts and complex architectures is critical for this role.Proven experience in integrating and utilizing LLM APIs for building conversational AI and machine-driven insight systems.Demonstrated ability to fine-tune pre-trained language models