Senior Software Engineer, Givebutter

• 4+ years shipping production backend services, ideally on a modern web framework
• Strong proficiency in PHP / Laravel, or the kind of adjacent framework fluency that ramps quickly (we won't rule you out for having lived in Rails, Django, or Spring)
• Deep familiarity with REST API design, HTTP semantics, and the patterns that make an API worth building against
• Solid SQL, MySQL specifically or comfortable enough with another relational database to speak to the trade-offs you've made
• Experience building against real-world third-party APIs, not just the pristine documented examples
• Comfortable designing async job workflows, queued work, and observable failure paths
• Strong instincts around OAuth, webhooks, and the trust-boundary decisions that keep a public API safe and honest
• Active use of terminal-based AI development tools (Claude Code, Cursor, or similar) with a clear review discipline for what the agent produces
• Experience contributing to on-call rotation for production services
• Comfortable navigating an existing monorepo (ours is real, and PHP / Laravel is most of the backend)

Desirable

• Givebutter is hiring a Senior Software Engineer, Integrations, to join our Growth pod
• Nonprofits live inside dozens of tools they already love: CRMs, accounting, volunteer platforms, AI assistants
• This role decides how well Givebutter meets them there
• You'll shape our public API into something builders and their AI agents actually want to reach for, and hold the partner surfaces we care about most as they grow with us
• Most of this work happens in the space between two systems: reading partner docs, spiking to see what breaks, sitting on calls with external engineers, closing the ambiguity that turns "maybe we could" into "here's how."
• Own one or more of our partner integration surfaces end-to-end, and hold them coherent as sales, success, and product shape them further
• Shape our public API as its audience grows to include AI agents building on behalf of nonprofits who don't code themselves
• Spike, prototype, and de-risk new partnerships, including the ones we don't yet know how to build, and the ones that only ship because someone had an aha moment
• Design and defend API contracts, webhook shapes, and data flows that other engineers (and other agents) will build against for years
• Partner with an existing integrations lead on the surfaces they hold today, and grow into shared ownership over time
• Partner with Product, Growth, Marketing, and occasionally an external partner engineer, as a natural translator between what each group needs

• Deadline to Apply October 2, 2026 at 7:00 AM UTC
• Recruiter Screen: A 30-minute conversation to learn more about your background, walk through the role, and ensure mutual alignment on expectations, values, and logistics
• Hiring Manager Interview: A deeper dive into your relevant experience, skillset, and working style. This is your first opportunity to connect directly with the person who may be your future manager
• Assessment (technical or non-technical): This stage will vary based on the role. It could involve a live coding session, case study, or take-home project. Some roles may include two parts to this stage to evaluate both practical skills and problem-solving approaches
• Values Interview: A conversation with team members focused on how you align with our core values and leadership principles
• References: We connect with a few folks you’ve worked closely with to get a better picture of your working style and impact
• Offer: If all goes well, we’ll move to the offer stage!
• Please note, we will have an AI note-taking tool join most of our interviews