Senior Full Stack Engineer

Plastics.com is harnessing the power of artificial intelligence to revolutionize the plastic and plastic compounding industries, bridging the gap between engineers using plastics and manufacturers creating them. At the core of our platform is Herman, an advanced AI agent designed to match product requirements with ideal plastic compounds. Herman leverages a combination of public and proprietary data to enable rapid and precise material recommendations, which can be easily ordered within a marketplace. We are looking for a skilled Senior Full-stack Software Engineer to play a key role in building the AI infrastructure for content engineering, tools, and interfaces that drive Herman's user experience. In this role, you will mainly drive and implement the features, architecture, and testing capabilities for LLM systems. Our ideal candidate has more experience with back-end development but is interested in productionizing the LLM system across the entire stack for rapid feature deployment. We see a combination of these skills as crucial for helping us meld our novel user experiences with AI Agents to enable easy plastic selection, sourcing, and logistics. This transformative approach unlocks new possibilities in plastics innovation, enabling faster, smarter, and more efficient product development and material discovery. As part of our cross-disciplinary team, you will work alongside MIT-trained engineers, scientists, and business professionals to build a groundbreaking AI platform for the plastics industry. Join us in transforming how the world approaches plastic materials through cutting‑edge technology and innovation. Job Responsibilities Collaborate with software, the executive team, and engineers to automate business‑critical workflows. Software development and integration – Integrating our application with various third‑party applications, systems, and APIs to ensure seamless data flow and process automation. Project management and leadership – Collaborating with cross‑functional teams, including business analysts, project managers, and quality assurance, to gather requirements, provide technical insights, and ensure successful project delivery. Data & Analytics – Develop custom dashboards, automate reports, and provide insights for data‑driven decision‑making. Write automated tests for the continuous delivery pipeline and meet development quality objectives. Troubleshooting and support – Identifying, diagnosing, and resolving technical issues and bugs within our applications to ensure a smooth user experience. Creating and maintaining technical documentation for our custom modules, and integrations for future reference and knowledge sharing. Participating in code reviews to ensure best practices, coding standards, and quality assurance. Qualifications Bachelor’s or Master’s degree in Mathematics, Physics, Computer Science, or related fields, or equivalent professional experience. 5+ years of experience as a full stack software engineer. Experience building APIs, databases, and back‑end development. Experience with IT security, cloud hosting, CI/CD, and DevOps best practices. Excellent communication skills and ability to collaborate in a fast‑paced environment. What We Offer Competitive salary and equity options. Health insurance and other benefits. A collaborative and innovative work environment with opportunities for professional growth. The chance to work on transformative technologies in the plastics and AI space. Location: Boston, MA Seniority level: Mid‑Senior level Employment type: Full‑time Job function: Design and Engineering Industries: Software Development #J-18808-Ljbffr