Senior Software Engineer, Kit (Formerly ConvertKit)
Ecosystem
$181k
Offers $50K Equity, profit sharing
React
Ruby on Rails
REST API
Senior and Expert level
Remote from Canada, Europe, UK, US
More information about location
Email-first operating system for creators
Be an early applicant
Email-first operating system for creators
21-100 employees
B2BMarketingContentCommunicationDigital MediaSaaSeCommerce
Be an early applicant
$181k
Offers $50K Equity, profit sharing
React
Ruby on Rails
REST API
Senior and Expert level
Remote from Canada, Europe, UK, US
More information about location
21-100 employees
B2BMarketingContentCommunicationDigital MediaSaaSeCommerce
Company mission
To help creators grow and earn a living.
Role
Who you are
- Deep expertise developing full-stack web applications using both Ruby on Rails and React, with a track record of owning features end to end
- Ability to write high-quality, well-tested, performant, and accessible code that balances speed of delivery with long term maintainability with minimal guidance
- Support strategic product decisions by anticipating business needs and translating them into technical solutions
- Communicate highly effectively across Engineering, Product, and Design to maintain alignment and momentum across complex initiatives
- Champion technical health through proactive monitoring, creating dashboards and alerting systems that identify issues early and drive systematic improvements
- Ability to lead without authority, aligning teams on goals, trade-offs, and success criteria
- Led major cross-team initiatives from ambiguous requirements to successful delivery with measurable business impact
- 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
- Model continuous growth while developing others through mentorship, code reviews, and deliberate knowledge sharing
- Balance pragmatism with strategic thinking, creating clarity and momentum for teams in uncertainty
- Champion creative execution by breaking down complex challenges into achievable steps others want to follow
- Pioneer AI adoption strategies that thoughtfully balance experimentation with practical team enablement
- Act as a force multiplier by building systems, tools, and knowledge-sharing practices that make the entire team more effective
- Shape and champion solutions that deeply align with user needs, balancing technical excellence with product impact
Desirable
- Designed and scaled frameworks used by developers, like RESTful API platforms with versioning or OAuth app scopes
- Established thought leadership through conference talks, technical blogs, or significant OSS contributions
- Built successful products or partnerships within the creator economy ecosystem
What the job involves
- We're looking for a Senior Software Engineer II to lead the evolution of 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 building resilient teams and transforming brown-field systems into elegant solutions is essential
- You're a full-stack, product-minded engineer with deep expertise in Ruby on Rails and React, not content with just shipping features but playing the long game
- 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 combine technical depth with leadership and extreme ownership, partnering closely with Product and Design to shape both the "what" and the "how"
- You thrive in ambiguity, take initiative without waiting for permission, and elevate everyone around you through your generosity and optimism
- 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
- You'll report to the Engineering Manager who leads the Ecosystem team, a cross-functional product team at Kit. You'll collaborate closely with a Product Manager, Product Designer, and peer Software Engineers
- You’ll also have access to a group of Engineers across Kit for support and mentorship, and will start with a peer onboarding buddy who will help you navigate our systems and codebase
- First Week: 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
- First Month: 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
- First Six Months: Lead and architect at least one major feature from ambiguous 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
Application process
- Deadline to Apply: 31 October 2025 at 04:00 GMT
- A phone screen with our recruiter
- Hiring manager interview
- Work sample
- A technical interview
- Technical execution and leadership interview
- We’ll keep you informed through every step. To get started, complete this application, including a cover letter and answers to the questions
- We read every single application, and your cover letter and responses help put your experience into context
Our take
Kit, formerly ConvertiKit was founded in 2013 to help online creators and bloggers make money through email marketing. The company has amassed more than 550,000 creators that reach 590+ million fans.
Following a boost to email marketing engagement rates, Kit’s strong existing network put it in a good position to take advantage of it. Add to that the increasing shift towards eCommerce, and the company’s offering is increasingly looking like a smart solution for content creators looking to monetize.
Kit’s acquisition of musician marketing platform FanBridge sees the platform scooping up musicians looking to explore alternative revenue streams online following the pandemic throttling of tours and live gigs. With plans to add Spotify and BandsInTown integrations, as well as ‘tip jars’, this is an interesting direction to see the email marketing company expand into.
Freddie
Company Specialist at Welcome to the Jungle
Insights
19% employee growth in 12 months
Company
Company benefits
- Vacation time: 4 weeks of paid vacation plus 10 paid holidays a year
- Health: Excellent health, vision, and dental benefits. 2 weeks of paid sick leave per year, including mental health days
- Profit sharing bonus: We celebrate our hard work and success with twice yearly profit sharing distributions
- Parental leave: 12 weeks paid leave for all caregivers, plus flexible scheduling in your child's first year
- Supportive leave: We're here to support you when life takes a turn. You'll have up to 6 weeks (each) of paid bereavement leave, medical leave and natural disaster leave
- 401K: 401k match of up to 5% of your salary to help you save for the future
- Vacation bonus: We'll help pay for your trip with a $1,000 yearly "paid paid vacation" bonus
- Learning budget: Use your annual Learning & Development budget to buy books and courses to keep your skills sharp
- Yearly conference: We'll pay for your registration and travel expenses to the conference of your choice each year
- Team retreats: The team gathers twice a year in-person for fantastic team retreats where we strategize, connect and bond
- Equipment: $4,000 equipment allowance upon joining the team and then $3,000 every two years after that 🇺🇸
Company values
- Teach everything you know – We teach everything we know for the benefit of creators and the broader tech industry. We encourage our community to do the same
- Create every day – Our best days are the ones when we create. Every person on the team is a creator and can roll up their sleeves to help build a better product and company. We believe consistent progress every day leads to incredible results
- Work in public – We share everything from our soaring successes to our epic failures because it helps us learn together. Besides, if we aren’t willing to sign our names to our work and put it into the world, we’ll never truly reach our potential
- Default to generosity – We make an impact by generously serving others. We’re a team of people who care deeply about one another, the creator community, and the wider world around us
- Creator success is our success – Every project we choose, every feature we build, every story we tell — they should all tie back to helping creators succeed. When creators grow their audiences, earn a living, and support their families, we all win
- Do it with excellence – When we choose to do something, we set the bar high. We iterate our way to excellence. When we can’t, we say no. When we say yes, we go all in to reach our potential. We have fun while doing the best work of our lives
Company HQ
Downtown, Boise, ID
Leadership
Nathan Barry
(Founder & CEO)Studied Marketing and Graphic Design at Boise State University and worked as a freelance software designer. Worked as Senior UX Designer at Unity Media Group. Also founded iOS and web applications design company Legend.
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