Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future. With a belief that consumers can have it all, we are an uncompromising energy company that makes coming clean a no brainer. Our award-winning technology platform empowers homeowners, businesses, and entrepreneurs to adopt renewable energy through simple, scalable, and innovative solutions. Operating at the intersection of B2B and D2C, we offer software, financial products, and services that drive real environmental impact—without compromising value. We deliver end‑to‑end solutions for whole home electrification that put clean energy within reach for all. Our employees are our most valuable resource. We foster a promote‑from‑within culture that prioritizes talent development, career growth, and purpose‑driven work. Palmetto offers a comprehensive benefits package—including unlimited PTO, medical, dental, and vision coverage, paid parental leave, retirement plans, and more—so you can have it all personally and professionally. Palmetto prioritizes people, planet, and profit—backed by a culture that values collaboration, impact, and balance. Join us in building a brighter, cleaner world. Location: This position is based onsite in Mexico City, MX. Summary of Role: As a Software Development Engineer III at Palmetto, you will play a key role in designing, building, and scaling critical platform services using the MERN stack (MongoDB, Express, React.js, Node.js). You’ll work hands‑on across the stack, with a stronger emphasis on server‑side architecture and API development, while collaborating closely with product, design, and engineering teammates. This role is ideal for a passionate, growth‑minded engineer who thrives in an Agile environment, brings ideas to the table, and has the technical depth to contribute to platform evolution and system scalability. You’ll work alongside, not for, other team members – contributing your ideas, code, and energy to shape solutions that drive business outcomes and customer satisfaction. Strategic & Tactical Responsibilities Design and implement scalable client‑ and server‑side solutions, with an emphasis on APIs, backend services, and database integration. Write high‑quality, testable, and maintainable code across the full stack. Develop and maintain comprehensive unit, integration, and end‑to‑end tests. Diagnose and troubleshoot production issues and propose robust solutions. Participate in Agile ceremonies (planning, grooming, retrospectives) and contribute to meaningful story estimations. Engage in architectural discussions, technical design reviews, and contribute to Palmetto's engineering standards. Identify and advocate for opportunities to improve system performance, reliability, and developer productivity. Partner cross‑functionally with product managers, designers, and QA to deliver well‑rounded user‑centric solutions. Team & Culture Actively participate in peer code reviews with a focus on knowledge sharing, mentorship, and maintaining high‑quality code standards. Collaborate openly with others to help cultivate a culture of learning, innovation, and continuous improvement. Demonstrate an ownership mindset by anticipating future needs and contributing to long‑term technical roadmap discussions. Minimum Qualifications 5+ years of professional software engineering experience. Proficiency with Node.js, Express, and experience designing/consuming RESTful APIs. Experience building and maintaining Single Page Applications (SPAs) with React.js. Hands‑on experience working with NoSQL/document‑based databases (e.g., MongoDB). Solid understanding of core web fundamentals (HTML, CSS, security, performance). Strong unit and integration testing discipline; TDD experience a plus. Familiarity with CI/CD pipelines, code versioning (Git), and modern development workflows. Excellent written and verbal communication skills. Strong problem‑solving skills, a continuous learner mentality, and a commitment to team success. Preferred Qualifications Experience with NestJS or other Node.js frameworks beyond Express. Familiarity with server‑side rendering concepts and isomorphic React applications. Knowledge of authentication and authorization patterns (e.g., OAuth, JWT). Experience with front‑end build tools (Webpack, Vite, Babel, etc.). Exposure to containerization (Docker) and cloud platforms (AWS, GCP, Azure). Interest or experience in microservice architecture and event‑driven systems. Practical knowledge of Agile methodologies, pair programming, and code review practices. Enthusiasm for building clean, scalable, and maintainable code. At Palmetto, you’ll have the opportunity to contribute meaningfully to the transition to renewable energy, grow your career alongside talented peers, and make a real impact on the products we deliver. Our engineering team is scaling rapidly, and we’re seeking strong, thoughtful builders to help shape our future. Employment is contingent upon the successful completion of a background check. Palmetto embraces diversity and is an Equal Employment Opportunity employer. Employment is decided based on qualifications, merit, and business need. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or any other status protected under federal, state, or local law. Voluntary Self‑Identification of Disability We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress toward this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years. Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) /ofccp. How do you know if you have a disability? 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