Senior Software Engineer - Ecosystem
Overview
Application Kit is an email-first operating system for creators who mean business. We help creators grow and monetize their audience with ease. For coaches, YouTubers, authors, podcasters, and other creatives, there isn't a better marketing hub to rely on to grow audiences, automate email marketing, and sell digital products — all within one platform. More importantly, there isn't a team more committed to helping creators earn a living. We're on a mission to help creators earn $1 billion using our creator marketing platform. We have always been 100% independent and 100% remote. We are proud to have built a product that our customers love, and we look for people who have enthusiasm and belief in our mission, vision, and values to join our team. We're also embracing AI thoughtfully — both in how we build and how we hire to ensure our team is adaptable, innovative, and ready for what's next.
Job Description
We're looking for a Senior Software Engineer to help build our extensibility and automation platform that powers how creators customize Kit to their unique needs. You'll be joining the Ecosystem team, which owns the Kit App Store, developer platform (APIs, plugins, webhooks, OAuth), and automation suite that enables creators to build sophisticated, automated marketing systems. We're a newly forming team tackling both legacy modernization and greenfield opportunities, so your enthusiasm for collaborative problem-solving and transforming brown-field systems into elegant solutions is essential. You're a full-stack, product-minded engineer with strong expertise in Ruby on Rails and React who thinks beyond individual features to understand system impact. You see our developer platform not as a technical requirement but as the foundation that empowers thousands of creators to extend Kit in ways we haven't imagined. You demonstrate ownership by proactively identifying and solving problems, partnering closely with Product and Design to deliver the right solutions. You thrive in ambiguity, bring ideas to life without waiting for perfect conditions, and contribute to a culture of transparency and continuous learning. Most importantly, you understand that great developer experiences create compounding value: when we make it easier for others to build on Kit, we accelerate the entire creator ecosystem.
Responsibilities
- - Dive into our codebase and extensibility and automation architecture
- - Set up your local environment and merge your first production code
- - Take part in Get To Know You's to meet our distributed team
- - Work through your personal onboarding plan
- - Begin understanding how Kit App Store supports creators from small to large, and identify opportunities for improvement
- - Join team activities for planning, building, and measuring the experiences we ship to creators
- - Actively participate in code reviews, and contribute PRs weekly
- - Lead and architect at least one significant feature from idea to launch
- - Transform our legacy codebase through strategic refactoring while applying systems thinking to enhance scalability and maintainability
- - Drive adoption of patterns and conventions that elevate team-wide technical standards
- - Ensure service reliability by participating in on-call rotations
- - Present at least one Lunch & Learn session
- - Actively mentor peers, and champion quality across our codebase
Required Skills
- - Develop full-stack web applications using Ruby on Rails and React with strong technical proficiency
- - Write high-quality, well-tested, performant, and accessible code with minimal guidance
- - Drive product outcomes by understanding how features contribute to creator success and finding simpler solutions
- - Communicate clearly across Engineering, Product, and Design to maintain alignment and momentum
- - Debug complex issues effectively across multiple domains
- - Planned, estimated, and executed complex projects independently while proactively communicating with stakeholders
- - Modernized and improved existing systems through hands-on brown-field development
- - Made data-driven decisions throughout the product development lifecycle
- - Worked transparently by sharing progress, learnings, and seeking feedback early and often
- - Delivered features that directly impacted customer success and business goals
Benefits
- - Profit Sharing
- - Kit equity
- - 401k with a 5% match
- - We cover up to $1,950 per month toward medical premiums, with dental and vision premiums fully covered
- - We offer Health Insurance plans through Aetna
- - $4,000 equipment allowance for your first two years, $3,000 budget every following two years
- - Individual learning + development budget ($3,500/year)
- - Gender affirming benefits
- - Childcare benefit up to $3,000 annually
- - Twenty (20) days of paid time off during each year of employment
- - Paid paid vacation: An after-tax bonus of $1,000 for taking five consecutive days of vacation where you’re fully unplugged from work
- - Ten (10) paid holidays a year
- - Two weeks of paid sick time each year, including mental health + well being days
- - Twelve (12) weeks paid parental leave and flexible scheduling in your child’s first year
- - Up to six weeks of paid bereavement leave, medical leave, and disaster after six months of employment, two weeks of each paid leave in your first six months
- - Winter Break Closure: Kit closes for a week at the end of December, giving everyone a collective break to enjoy the holiday season
- - Four-week, paid sabbatical after five years with the team
- - Fantastic in-person or virtual retreats with the team twice a year
About the company
Kit (formerly ConvertKit) is the email-first operating system for creators building a valuable business. Connect your favorite tools through the Kit App Store—from Squarespace to Patreon—and manage your entire creator business all in one place. Our growing ecosystem of apps lets you seamlessly integrate the platforms you already use while discovering powerful new tools to help your business thrive.
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