Summation

Staff Product Engineer

Bellevue, WA; Remote · Staff+

Sponsorship not specifiedDetected 43 days ago

JavaScriptTypeScriptPythonRESTData VisualizationLLMsPerformance ManagementCommunicationProblem SolvingMentoring

About the role

As a Staff Product Engineer at Summation, you'll be the senior front-end leader on our team, reporting directly to our CTO and owning the front-end architecture and experience of our product end to end.
Our product is analytics-rich and highly interactive, which makes the front end one of the hardest and most important parts of what we do: dense, data-heavy interfaces that still need to feel fast, clear, and effortless.
As a Series A company approaching product-market fit with our first customers, we're at the point where the front-end foundations you lay will define how well we scale.

Own the front-end architecture and user experience of our product end-to-end from concept through shipping and iteration
Set the bar for front-end quality, patterns, and performance, and help establish the standards the team builds against
Partner directly with the CTO, Founding Designer, and product team to shape direction and translate ambitious ideas into polished, performant interfaces
Build responsive, scalable, data-dense interfaces for analytics and AI-driven workflows
60 days: You've identified the highest-leverage gaps in the existing front-end architecture and started addressing them, sharpening the patterns the team builds against while shipping polished, customer-facing features alongside the CTO and Founding Designer.
Summation is building the future of business planning and analytics by bridging the gap between data and decision-making.
We empower organizations to transform complex data into clear, actionable insights that drive business outcomes.

A track record of shipping to internal or external users and iterating based on their feedback
Strong communication and problem-solving skills, ability to work with cross-functional teams
Proficiency in Python, TypeScript, JavaScript, or similar languages
8+ years of software engineering experience, including 4+ years of dedicated, hands-on front-end product development - building products, not solely platform or library work.
Experience building and shipping a product from zero to one with end-to-end ownership, as a founding or early engineer at a startup or with equivalent ownership inside a larger company

Background in analytics, data visualization, or AI-driven products
Familiarity with financial software, models, or data
Experience leading or mentoring engineers (not required for this role)
We use AI pragmatically in our work, and we welcome you to do the same during interviews.
You're free to use AI tools for syntax, semantics, or general API questions.
We ask that you not use AI to solve interview problems or generate substantive code or logic
we're interested in how you think, communicate, and incorporate feedback.
A collaborative environment where your voice matters

90 days: The quality and performance bar you've raised is visible in the product, interfaces feel faster and more cohesive, and your refined patterns are becoming how the team builds by default.
6 months: You're the clear owner of the front end. You've meaningfully leveled up the architecture you inherited, shipped ambitious data-dense features customers rely on, and influenced product direction beyond just the front end.
You'll have influence over both architecture and product direction, the autonomy to make consequential decisions, and direct access to the people setting company strategy.
First 30 days: You've ramped on the codebase, product, and customers, shipped your first meaningful improvements, and formed a clear point of view on the state of the front end and where it needs to go.
Our AI-native platform pairs advanced data models with intuitive workflows to make enterprise performance management simple, collaborative, and effective.

This listing is sourced directly from Summation's careers page and normalized into a canonical job model.