Senior Platform Engineer, Sprig
$180-260k
Offers Equity
Research platform for UX teams
Be an early applicant
Research platform for UX teams
201-500 employees
Be an early applicant
$180-260k
Offers Equity
201-500 employees
Company mission
To help product managers, user researchers, and growth marketers uncover customer insights in real time so they can make informed product decisions, faster.
Role
Who you are
- Build systems depth: 6+ years owning a monorepo build system at scale (Bazel strongly preferred; Buck2, Pants, Nx, or Turborepo also considered). You understand hermeticity, sandboxing, action graphs, and cache invalidation from first principles
- CI/CD as a platform: Experience owning incremental builds, test sharding, self-hosted runner fleets, presubmit/postsubmit design, and merge queues, knowing that services and UI need different feedback loops
- Frontend build ownership: Deep experience with production bundler pipelines (webpack, Vite, esbuild, or Turbopack), shared UI packages, and test suites (Jest, Playwright, Cypress) and their interaction with hermetic builds
- TypeScript/Node fluency: Strong expertise in Node.js module resolution and packaging (CJS/ESM, exports) and comfortable operating in a polyglot repository alongside Go
- Build trust: Experience eliminating hidden network calls, machine-dependent toolchains, and undeclared inputs to ensure reproducible results and prevent cache/sandbox poisoning
- Test infrastructure and impact: Proven ownership of flake detection/quarantine, balanced sharding, and merge signals, with measurable results in build times, CI spend, and artifact or bundle sizes
What the job involves
- Agents pay off when engineers hand them whole changes, not incremental changes
- That makes the build-and-test loop the safety gate for the entire org: when CI is slow or flaky, teams lose time twice, once waiting and once re-running to sort noise from real failures
- Add a dozen agents validating against the same shared environment, and a workflow annoyance becomes an organization-wide bottleneck
- This role owns that loop
- You will be responsible for how quickly a change becomes a signal people trust, whether a human or an agent wrote it: incremental CI on a large TypeScript, React, and Go monorepo, test automation that is fast and meaningful from unit through browser and visual, and short-lived environments created and torn down per branch instead of queued
- We are not looking for someone to inherit a ticket queue
- We want a builder who can help set a direction for how development should work in an agent-heavy world, then deliver it
- If you have experience making a development loop people complain about faster and more predictable, this is the next iteration of that same problem, with tighter constraints
- You will do this on the Platform team, which runs the systems that support over a billion visitors a month and processes nearly a billion events a day
- Modernize the JavaScript and TypeScript build: Lead the migration from our current Node Bazel rules to a maintained successor, complete the move of the JS toolchain to Bazel modules, and replace accumulated image and packaging workarounds with proper module linking and incremental compilation
- Cut CI time and cost, measurably: Establish p50 and p95 PR build and test times as tracked metrics, then drive them down through better cache hit rates, incremental builds, and balanced test parallelism. Own the remote cache fleet's sizing, eviction behavior, and cost
- Make the build observable: Ship telemetry for per-target timing, cache hit rate, flake rate, and cost, so build decisions are data-driven rather than anecdotal
- Make test automation a first-class developer experience: Own how engineers and agents write, run, and trust tests across unit, integration, browser end-to-end, and visual layers. Make the local command match CI, make it trivial to run either a single file or the affected graph, and detect and quarantine flakes instead of asking people to rerun. Close the gaps so lint, static analysis, and coverage are real gates rather than noise
- Move from shared environments to ephemeral ones: Replace a handful of long-lived, contended environments with short-lived isolated stacks that a human or a cloud agent can create per branch or per task. Fast spin-up, real isolation, and cost control are first-class requirements
- Build the agent-ready development platform: Deliver hermetic, sandboxed, reproducible build and test environments that agents can invoke safely and in parallel, plus the automated review and presubmit signals they need to validate their own changes
Our take
Designed to make product research and qualitative data analysis both faster and more thorough, Sprig is an AI-powered UX research platform. Its tools are trusted by teams of 1 to 10,000, included a whole host of innovative companies such as Square, Dropbox and Adobe.
Initially founded as "UserLeap", the company was conceived after a product manager found it difficult to obtain customer insights at a quick enough pace to influence development. What makes Sprig unique is that its research is continuous and in-the-moment, meaning product managers can see their customer insights at all times.
Sprig has backing from top investors like az16 and Accel, which has allowed it to accelerate its roadmap and invest in more integrations and partnerships. This puts the company in a great position moving forwards as it seeks to further grow its revenue and reach.
Steph
Company Specialist at Welcome to the Jungle
Insights
115% employee growth in 12 months
Company
Funding (last 2 of 3 rounds)
Jun 2021
$38m
SERIES B
Dec 2020
$16m
SERIES A
Total funding: $58m
Company benefits
- Competitive Employee Equity
- 401K Program
- Medical, Dental, and Vision Benefits
- Additional Wellbeing Benefits
- Generous Paid Time Off
- Paid Parental Leave
- Hardware & Software
- Work from Home Equipment Stipend
- Professional Development Stipend
- Flexible Work Options
- Access to Sprig Offices
- Company Events
Company HQ
Financial District, San Francisco, CA
Leadership
Ryan Glasgow
(CEO & Founder)Ryan has deep experience scaling companies from early stage to successful exit having been a team member at Weebly (acquired by Square) and Vurb (acquired by Snapchat).
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