Coperniq (YC W23) - Full Stack Engineer (Node/React)

Coperniq 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