Grammarly
Engineering Manager, Calc Engine — Superhuman Docs
$240K–$320K
Hub - San Francisco · Hybrid · Manager · Full-time · Posted Sep 15, 2026
- Experience
- 2-3+ years as an EM or tech lead.
About the job
Leads a small team building and scaling Superhuman Docs’ calculation engine, while contributing hands-on to database internals, query planning, execution, and performance.
What you'll do
- Own invalidation, execution, and query planning for the calculation engine.
- Set technical direction and make architectural decisions to scale infrastructure as usage and document complexity grow.
- Review code and designs, write code, profile and benchmark performance, and coordinate with teams building on the engine.
What they ask for
- Experience working on database internals, such as query optimization or planning, SQL execution, storage-engine internals, or HTAP systems.
- 2-3+ years as an engineering manager or tech lead managing a small team (~5) while staying hands-on in code.
- Interest in building a real product, not only infrastructure.
Nice to have
- TypeScript, SQLite, Operational Transforms, WebSockets, OPFS, or React.
Pay
$240K – $320K (USD, base salary)
Tools
SQL, B-Trees, LSM Trees, TypeScript, SQLite, Operational Transforms, WebSockets, OPFS
Model-written summary · the original posting is authoritative