At H2Ok Innovations, we're leading the charge in cleantech innovation, reshaping process industrials and manufacturing to drive operational efficiency and sustainability for our world’s most foundational industries. Powered by our H2Ok AI Co-pilot models and state-of-the-art sensors, our solutions optimize facility performance across various processes, including process manufacturing, production, water management, energy reduction, and waste minimization. Based at Greentown Labs, North America's premier cleantech innovation community, we're a woman-founded startup backed by renowned investors like Construct Capital, 2048 Ventures, and Flybridge Capital. Our groundbreaking technologies have earned accolades and adoption from industry giants like Unilever, The Coca-Cola Company, ABinBev, and Mitsubishi Electric. We're committed to unlocking untapped data for our customers, empowering them to gain a competitive edge and create Industry 4.0. Transforming our most foundational sectors of society is hard. Very hard. But we’re building an empire. And empire building is not easy. It’s deeply fulfilling, and you will learn and grow tremendously while driving sustainable impact globally with some of the largest players that make everything we eat, use, and wear. Our culture is to foster extraordinary growth within our teammates. We believe in autonomy, ownership, empowerment, demanding excellence, being mission-driven. We believe in creativity, authenticity, and extraordinary growth. We’re looking for relentless, ambitious, creative, and exceptional people to join our team and build the factory of the future. As our company scales, we're in search of an experienced Senior Backend Engineer to lead the design and implementation of our cloud‑backend systems powering real-time industrial data insights that advances sustainability at scale. Since we are a small team, we’re constantly picking up new challenges and really value engineers who can spot a problem and just get it done. We do not expect you to know everything we use, but you should have a solid backend foundation, a knack for scalable systems, and a hunger to learn whatever the next challenge throws your way. Title and scope will depend on experience. * API Design: Design & build APIs and services to support our core product features * Product Performance: Improve database and infrastructure performance by optimizing relational schemas and building robust, high-efficiency data pipelines * Monitoring Infrastructure: Improve observability, monitoring, and alerting of our cloud infrastructure to identify bottlenecks and minimize downtime * Architecture Planning: Contribute to our technical direction and help evolve & scale our service via infrastructure changes across hundreds of factories * Security Design: Make security a first-class priority by integrating secure data practices throughout everything we build * Over 5 years of experience in software development * Quick learner with the ability to adapt to new technologies and unfamiliar domains * Designed applications using multiple modern web programming languages * Strong proficiency in contemporary web application frameworks * Solid understanding of cybersecurity principles and best practices * Advanced skills in SQL and database optimization * Over 2 years of hands-on experience working with big data technologies * Extensive experience with cloud platforms such as AWS and Azure * Excellent communication skills to articulate technical issues, solutions, and progress effectively * Strong team player mindset, comfortable sharing knowledge and collaborating within a team environment * Direct impact on product and culture * Comprehensive benefits package including Medical, Dental, Vision, Life Insurance, Disability, Transportation benefit, Health and Wellness benefit, and more * Competitive salary and bonus opportunities * 401k plan with employer matching * Equity * Dynamic and inclusive work environment * Opportunities for growth and professional development * Access to Greentown Labs' extensive network of cleantech startups * Learn about our startup journey: Our Journey * How we're combating climate change: AI-Powered Climate Tech * A customer story: Ben & Jerry's uses H2Ok's precision automation to cut time & water usage Work on cutting-edge AI and sensor tech that’s already transforming how factories use water, energy, and chemicals. Join a tight-knit, ambitious team where your contributions can reshape the industry. Join a fast-growing startup where you’ll have the opportunity to shape our content strategy. We value fostering extraordinary growth in our teammates. Work in a high-performance environment that values empowerment, creativity, ownership, autonomy, innovation, excellence, passion, and continuous growth. Play a key role in promoting sustainability and Industry 4.0 advancements in manufacturing. Build the intelligence layer powering the next generation of industrial efficiency – with a team that moves fast and delivers real impact. Phone screen with H2Ok Recruiter (15-20 minutes) Intro call with Hiring Manager (30 minutes) Depending on the role, a skills exercise that should take no longer than an hour to prep On-site interview, including short tour of GTL, overview of tech, and interview/presentation with the Hiring Manager and a few team members Two professional references Background check