Growth Engineer

Summary

Join Instrumentl, a mission-driven startup revolutionizing grant management for nonprofits, as a Growth Engineer. You will collaborate with cross-functional teams to design, build, and deploy experiments and features using Ruby on Rails, enhancing user experience and driving key growth metrics. Responsibilities include A/B testing, maintaining the growth experimentation platform, and owning problems end-to-end. The ideal candidate possesses 3+ years of software engineering experience with a strong Ruby on Rails background, is technically adaptable, customer-focused, and highly analytical. Instrumentl offers competitive compensation, including a salary range of $120,000-$160,000/year + equity for US-based candidates, comprehensive benefits, and a fully distributed work environment.

Requirements

• Experienced: you’ve been a software engineer for 3+ years, with a strong emphasis on Ruby on Rails development
• Technically adaptable: you’re familiar with front-end technologies (HTML, CSS, JavaScript) and their integration with Rails applications, and you’re open to learning new tools or frameworks to move faster and build better
• Customer-focused: you take pride in delivering exceptional user experiences—from first touch to deep engagement—and love being part of projects that help users quickly realize value
• Collaborative: you thrive in a cross-functional environment involving product managers, designers, marketers, and data analysts, and you value the unique perspective each person brings to the table
• Experimental: You’re comfortable with rapid iteration, feature flagging, and A/B testing
• You have experience (or are excited by the idea of) running experiments at different points in the funnel - from onboarding to activation - and using those results to drive decisions
• Highly analytical: you approach problem-solving with a data-first mindset and can readily interpret experiment results, behavioral analytics, and product telemetry to guide next steps
• Hungry: you’re on a mission to make an impact
• You’re motivated by fast learning cycles, continuous improvement, and seeing your work move the needle
• Results-Driven: you’ve demonstrated the ability to ship value in fast-paced environments and are energized by getting things out the door and into users’ hands
• Passionate: you’re excited about Instrumentl’s mission to propel nonprofits into a bigger, brighter future—and you’re particularly energized by our early bets on AI and LLM-powered experiences to help users onboard and find value faster

Responsibilities

• Design, build, and deploy experiments and features, using Ruby on Rails to enhance user experiences and drive key growth metrics
• Work side by side with our Product, Marketing, Design, and Data teams to ensure that our best-in-class product retains its crown
• Maintain and improve our growth experimentation platform, ensuring robust and reliable experiment tracking and analysis
• Implement and analyze A/B tests to validate hypotheses and inform product decisions
• Own problems from end to end, managing complexity and engaging directly with stakeholders to develop short-term and long-term solutions
• Apply a product-focused mindset, balancing speed, quality, and user experience in all deliverables
• Uphold Instrumentl’s high standards for product quality and mentor newer team members to do the same

Preferred Qualifications

• Startup experience and comfort operating in fast, scrappy environments is a huge plus!
• Experience working on growth-focused teams or in growth engineering roles
• Proficiency with analytics tools (e.g., Amplitude, Segment, Mixpanel) and languages like SQL
• Familiarity with product-led growth (PLG) principles and how they apply across onboarding, activation, and engagement
• Experience with email marketing tools, SEO, or other acquisition/retention channels
• Knowledge of Tailwind and/or the Hotwire stack
• Familiarity or hands-on experience with building or integrating LLM-powered features to support user onboarding, product education, or self-service flows

Benefits

• 100% covered health, dental, and vision insurance for employees, 50% for dependents
• Generous PTO policy, including parental leave
• 401(k)
• Company laptop + stipend to set up your home workstation
• Company retreats for in-person time with your colleagues
• Work with awesome nonprofits around the US
• We partner with incredible organizations doing meaningful work, and you get to help power their success