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

    ~$73,920 - $137,280Market Estimate
    Argentina
    Full-Time
    Mid (3-6 yrs)
    Engineering & Development
    Posted on August 3, 2026

    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 (System Design Interview)

    • Client Technical Screen

    • System Design Screen

    • CEO Final Round

    Company:  Silver.dev

    Talent agency connecting LatAm engineering talent with U.S. startups.
    2-10 employees
    Human Resources & Recruiting
    HQ: United States