We are seeking a remote, full-time Senior Full Stack Software Engineer with 5+ years of software development experience. Candidates must have a strong background in React.js and either Golang, Node.js, or Java, with a strong desire to adopt Golang as the primary backend technology. In this position, you will play a foundational role in building the core platform that enables power utilities to shift from decades-old legacy systems into an AI-native future. Candidates must bring working proficiency with AI tools and APIs to ensure seamless integration of intelligent functionality into the client's products.This role requires strong coding fundamentals, system design capability, and the mindset of a builder who thrives in a startup environment. You will work in small, agile teams reporting directly to the CTO, collaborating closely with AI engineers, security leaders, and product managers. Together, you will build and deliver AI-native services delivered at startup speed.Our client is building an AI-centric operating system for utilities. It harnesses AI at the enterprise level to better orchestrate customer delight, facilitate power optimization, improve the health of the grid, and unlock flexibility at scale. Funded by a strategic industry partner and one of the founders at Groupon, the client is poised to transform how utilities run and how customers experience energy.ResponsibilitiesFront-End Development: Build, implement, and maintain front-end applicationsBack-End Architecture & Development: Design, implement, and maintain APIs, services, and distributed systems that form the backbone of the client's OSAI Integration: Collaborate with AI engineers to integrate models, embeddings, and agent services into back-end systems. Operate AI APIs, ensuring outputs are production-ready and aligned with enterprise utility requirements.System Modernization: Transform legacy workflows into modern, secure, scalable codebases using cloud-native best practicesSecurity & Compliance: Partner with security leaders to ensure all services adhere to stringent utility-sector regulations, implementing secure coding practices by defaultAgile Delivery: Deliver features and improvements in cycles measured in weeks, balancing speed with reliabilityRequired ExperienceExcellent English communication skills5+ years of software engineering experience in SaaS or enterprise environmentsStrong proficiency in React.js, Python, and either Golang, Node.js, or Java (non-Golang developers will learn and adopt Golang on the job)Demonstrated ability to deliver high-quality code in fast-moving teamsBasic proficiency with AI/ML tooling (e.g., calling APIs, integrating model outputs)Solid understanding of databases (SQL and NoSQL), message queues, and distributed architecturesCloud-native engineering experience (AWS, Azure, GCP)Clear communicator, adaptable, eager to learn and grow AI capabilities over timeStrong sense of ownership and accountability in small teamsDesired ExperienceUniversity degree or relevant industry experienceExperience working on ERP systems or within the power utilities industryAdditional InformationEnjoy a fun, fast-growing entrepreneurial companyBe part of a highly collaborative learning culture, share knowledge, be inclusive, learn, and grow together. Embrace teamwork!Knowing your ideas are heard and matter, think big!You get to own your job and be recognized for your contributionsWork with innovative and creative peopleMaking mistakes is human. Let's learn from them. Be transparent!We recognize you as an individual, with no presumptions or judgment. Be the extraordinary you!15 days Paid Time Off (PTO), one floating day, three sick days, and designated national holidaysStart: ASAP