Senior Back-end Engineer (Node.js) We're looking for a backend-focused engineer to join our lean, high-leverage engineering team building the infrastructure that powers our energy marketplace. You'll work across our platform—from rate monitoring systems that track complex utility pricing across deregulated markets, to the marketplace orchestration that matches customers with optimal suppliers. This is a high-ownership role where you'll ship production systems, not just features, and where AI-augmented development practices are the norm. What You'll Do Design and build scalable backend services that power our core marketplace platform Develop and maintain cloud infrastructure on GCP using Terraform, ensuring reliability and cost efficiency as we scale Build integrations with utility data sources, supplier APIs, and third-party services across multiple energy markets Create robust data pipelines for real-time rate monitoring and market intelligence Partner with product and cross-functional partners to translate system and supplier needs into high-performing, resilient experiences. Take product ownership on select features and projects when necessary Collaborate closely with a small team where your code ships fast (multiple daily prod deploys) and your architectural decisions matter Leverage AI tools and workflows and uplevel the team around you What You Bring 5+ years of backend engineering experience with production systems at scale Strong JavaScript/TypeScript expertise: Node.js for backend services, familiarity with Nest.js a plus Hands-on experience managing cloud environments including serverless and event driven systems built on native cloud tooling (GCP experience preferred) Terraform proficiency for infrastructure-as-code; you've managed real cloud environments, not just tutorials Comfort with databases (SQL, ideally Postgres), API design, and async processing patterns AI fluency: you actively use AI coding tools and are eager to push the boundaries of AI-augmented development Bias toward shipping; you thrive in environments with ambiguity and move fast without sacrificing quality Interest in energy, climate tech, or marketplace products is a strong plus About RYZ Labs: RYZ Labs is a startup studio founded in 2021 by two lifelong entrepreneurs. The founders of RYZ have worked at some of the world's largest tech companies and some of the most iconic consumer brands. They have lived and worked in Argentina for many years and have decades of experience in Latam. What brought them together was their passion for the early phases of company creation and the idea of attracting the brightest talents in order to build industry-defining companies in a post-pandemic world. Our teams are remote and distributed throughout the US and Latam. They use the latest cutting-edge cloud computing technologies to create scalable and resilient applications. We aim to provide diverse product solutions for different industries and plan to build a large number of startups in the upcoming years. At RYZ, you will find yourself working with autonomy and efficiency, owning every step of your development. We provide an environment of opportunities, learning, growth, expansion, and challenging projects. You will deepen your experience while sharing and learning from a team of great professionals and specialists. Our values and what to expect: - Customer First Mentality - Every decision we make should be made through the lens of the customer. - Bias for Action - urgency is critical, expect that the timeline to get something done is accelerated. - Ownership - Step up if you see an opportunity to help, even if it's not your core responsibility. - Humility and Respect - Be willing to learn, be vulnerable, and treat everyone who interacts with RYZ with respect. - Frugality - being frugal and cost-conscious helps us do more with less - Deliver Impact - get things done most efficiently. - Raise our Standards - always be looking to improve our processes, our team, and our expectations. The status quo is not good enough and never should be.\n\n