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 1 week ago Be among the first 25 applicants Join to apply for the Senior Full Stack Engineer / ClimateTech / React + Ruby on Rails / NYC or Remote role at Motion Recruitment Get AI-powered advice on this job and more exclusive features. Senior Full-Stack Engineer

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Join 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

Join 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 MillsSeniority level Seniority levelMid-Senior level Employment type Employment typeFull-time Job function Job functionEngineering and Information Technology IndustriesStaffing and Recruiting Referrals increase your chances of interviewing at Motion Recruitment by 2x Get notified about new Full Stack Engineer jobs in New York, NY . New York, NY $140,000.00-$180,000.00 3 months ago Software Engineer, Full Stack (Product Engineering) New York, NY $130,000.00-$175,000.00 1 year ago New York, NY $115,000.00-$185,000.00 2 weeks ago New York, NY $180,000.00-$240,000.00 5 months ago Full Stack Engineer - Payments (Contractor)Full Stack Software Engineer at Fintech Company (Remote, PH-based only)Full Stack Engineer (NYC, Austin or Remote US) New York, NY $120,000.00-$190,000.00 1 year ago New York, NY $162,000.00-$234,000.00 2 months ago New York, NY $197,000.00-$227,000.00 2 months ago Full-Stack Engineer - Help Us Build the Future of AI Team Development Jersey City, NJ $155,000.00-$180,000.00 1 month ago New York, NY $150,000.00-$180,000.00 2 months ago Engineering Manager – Full Stack (Ruby, Next.js) New York, NY $150,000.00-$200,000.00 10 months ago New York, NY $197,000.00-$227,000.00 2 months ago New York, NY $130,000.00-$200,000.00 11 months ago New York City Metropolitan Area 1 week ago Senior Front-End Software Engineer (Remote) We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

#J-18808-Ljbffr Remote working/work at home options are available for this role.