Senior Full Stack Engineer / ClimateTech / React + Ruby on Rails / NYC or Remote - Motion Recruitment : Job Details

Senior Full Stack Engineer / ClimateTech / React + Ruby on Rails / NYC or Remote

Join to apply for the Senior Full Stack Engineer / ClimateTech / React + Ruby on Rails / NYC or Remote role at Motion Recruitment

Senior Full Stack Engineer / ClimateTech / React + Ruby on Rails / NYC or Remote

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Join to apply for the Senior Full Stack Engineer / ClimateTech / React + Ruby on Rails / NYC or Remote role at Motion Recruitment

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Senior Full-Stack EngineerJoin a mission-driven startup at the intersection of climate and fintech, dedicated to making sustainable building upgrades—like heat pumps, batteries, and EV chargers—more affordable and accessible. We are looking for a

Senior Full-Stack EngineerJoin a mission-driven startup at the intersection of climate and fintech, dedicated to making sustainable building upgrades—like heat pumps, batteries, and EV chargers—more affordable and accessible. We are looking for a Senior Full-Stack Engineer to build products and features that empower contractor and manufacturer partners to accelerate the adoption of energy-efficient solutions.This role is ideal for engineers who thrive in fast-paced environments, enjoy working across the entire stack, and want to make a direct impact in a high-growth startup. This is a hybrid position based in NYC with flexibility on leveling from Senior to Principal Engineer.What You'll Do

• Own end-to-end feature development, from ideation and planning through execution and deployment
• Write and review code across the full stack while balancing quality and execution speed
• Make key architectural decisions, define best practices, and manage technical debt
• Work closely with the founding team to shape the product roadmap, understand customer pain points, and influence priorities
• Gain exposure to all aspects of a startup, including sales, customer discovery, and strategy

Required Skills & Experience

• 5+ years of experience in full-stack development, preferably with Ruby on Rails or similar frameworks
• Strong understanding of modern web application development practices
• Expertise in database design and management
• Excellent communication skills and ability to work cross-functionally to balance product and technical requirements
• Ownership mindset with the ability to operate in an ambiguous, fast-moving environment
• Experience designing and scaling systems from 0 to 1 and beyond
• Interest or experience in AI, ML, and LLMs is a plus

What You Will Be Doing Tech Breakdown

• 50% Back-end development (Ruby on Rails, database management)
• 50% Front-end development & full-stack architecture

Daily Responsibilities

• 70% Hands-on development, coding, and reviewing
• 20% Collaborating with product, design, and business teams
• 10% Researching and implementing new technologies and best practices

The Offer

• $140,000 - $180,000 salary (New York) + competitive equity package
• Health, dental, and vision insurance
• Unlimited PTO
• A unique opportunity to join a mission-driven, fast-growing startup at the ground level

Posted By: Henry Mills

Seniority level

• Seniority levelMid-Senior level

Employment type

• Employment typeFull-time

Job function

• Job functionEngineering and Information Technology
• IndustriesStaffing and Recruiting

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