Senior Software Engineer - Collaborative Web Platform

The Role
As a Senior Software Engineer on this team, you will be a technical anchor and a hands-on builder. You will own significant pieces of the platform end-to-end — from API design and backend services to frontend systems and browser-side experiences. You will partner closely with the Staff Engineer and Director of Engineering to make architectural decisions, set quality standards, and accelerate the team toward meaningful milestones.

This role requires both breadth and depth. You are comfortable owning a problem from design through delivery, writing the code and the tests, and helping less experienced engineers do the same. You understand that great infrastructure and great product experience are not in tension — they are the same problem viewed from different angles.

What You Need to Succeed
Own significant features and platform components end-to-end — from technical design through production delivery
Build backend services, APIs, and frontend systems that power a real-time collaborative content platform
Contribute meaningfully to architectural decisions — your opinion matters and will be sought
Write clean, well-tested code and help establish quality standards for the team — there is no dedicated QA on this team
Mentor and support SE II engineers through code review, pairing, and technical guidance
Collaborate with product and design to translate ambiguous requirements into concrete technical plans
Integrate AI tooling concretely into your development workflow and into the product
Help define how the team works — process, standards, and engineering culture are all being built right now
What You Bring to the Table
5–8 years of professional software engineering experience
Genuine full-stack capability — you have shipped production systems on both backend (APIs, cloud infrastructure, data services) and frontend (component systems, browser performance, interactive UIs)
Strong API design experience: REST, GraphQL, and webhooks — with opinions about when to use each
Cloud-native fluency: you have designed and operated services in GCP, AWS, or Azure, not just deployed to them
Experience with real-time or collaborative systems is a meaningful plus — live data sync, multiplayer state, event-driven architectures
Frontend architecture depth: component modeling, state management, rendering performance
Bachelor's degree in Computer Science or equivalent practical experience
You are actively and concretely building with AI — integrating it into products you own or creating tooling that makes AI more effective.
What We Offer
We have all the usual perks and benefits but what we can really offer you is a fantastic work environment powered by an amazing team.

Industry competitive compensation and equity plan
Flexible time off, sick days, and 13 paid holidays
Comprehensive medical insurance including Health, Dental and Vision
Paid parental leave (plus fertility, adoption and other family planning benefits)
In-office workspace (San Francisco & Chicago)
Monthly allowance for wellness, reading and access to LinkedIn Learning for continued development
Events and activities both team-based and company wide that inspire, educate and cultivate