# Coperniq \(YC W23\) - Full Stack Engineer \(Node/React\) - Company: [Silver]() - Location: Argentina · Colombia - Remote: Yes - Team: Engineering - Employment type: Full Time - Salary: $60K – $90K - Posted: August 3, 2026 ## Job description # [Coperniq](https://www.coperniq.io) ## About us Coperniq is on a mission to revolutionize the renewable energy industry with cutting-edge software solutions. As a Y Combinator-backed startup, funded by Initialized Capital, we’re building the infrastructure for clean energy contractors to succeed. We’re looking for top-tier talent to scale with us. ## Role Overview We’re looking for a Senior Full Stack Engineer to lead the development and scaling of our platform. As a key member of our small, dynamic team, you’ll collaborate across functions to deliver a seamless and powerful experience for our users. This role requires deep expertise in both frontend and backend technologies, as well as a passion for building robust, scalable systems. If you thrive in fast-paced environments and are excited about making a significant impact in renewable energy, we want to hear from you. **What You’ll Do:** * Design, develop, and maintain scalable and secure full-stack solutions. * Build and enhance web applications, ensuring a seamless user experience. * Collaborate closely with product, design, and QA teams to align on requirements and deliver high-quality features. * Define and implement best practices for software development and deployment. * Optimize application performance and scalability for growing user demands. * Mentor junior engineers and contribute to a culture of technical excellence. * Take ownership of technical decisions and contribute to the product roadmap. **What We’re Looking For:** * Bachelor’s degree in Computer Science, or a related field, with a deep understanding of software engineering principles. * **7+ years of full-stack development experience, with a balanced skill set across frontend and backend. We are looking for profiles that are not purely frontend or backend — typically a 60/40 split in real project work in either direction.** * Proficient in our tech stack: AWS, React, GraphQL, TypeScript, Node.js, NestJS, MikroORM, PostgreSQL; experience with GitLab for CI/CD, Docker, and Kubernetes. * Demonstrated experience in designing user interactions on websites, writing server-side API calls, and integrating front-end and back-end aspects of an application. * Strong problem-solving skills, with a track record of working effectively in a dynamic environment. * Excellent English skills and the ability to work as part of a team. * Experience in leading projects, from conception to implementation to feedback integration. **Nice to Have:** * Experience in the renewable energy or SaaS industry. * Knowledge of geolocation technologies and real-time data integration. * Familiarity with SOC II compliance and secure development practices. * Implementing voice agents * Implementing docs/images editing/annotating with AI **What We Offer:** * A flexible work environment with opportunities for remote work. * The chance to shape the future of clean energy. * A collaborative, high-performance team culture. **Interview Process** * Silver Recruiter Screen * Silver Technical Screen * Behavioral Screen * System Design Screen * CEO Final Round ## Apply [Apply on Silver]() Canonical job page: