Full-Stack Performance Engineer
You will audit and optimize full-stack web applications, eliminating bottlenecks across browser rendering, network latency, and database queries.
What you'll work with.
As a Senior Full-Stack Performance Engineer at TheWebVale, you will optimize our client applications for speed and efficiency. You will profile performance across browser render passes, API response latencies, database index efficiency, and server caching strategies. You will partner with our founder and senior engineers to establish performance budgets for projects in two-to-three week delivery cycles. You will deliver measurable speed improvements that elevate client conversion rates and search rankings.
Your day to day.
6 things, one at a time. Keep scrolling.
Conduct full-stack performance audits covering client rendering, APIs, and databases.
Profile and eliminate slow database queries, missing indexes, and N+1 query patterns.
Optimize frontend script payloads, asset delivery, and critical rendering paths.
Implement caching layers using Redis, HTTP cache headers, and edge CDNs.
Establish automated performance monitoring and alerting in CI deployment gates.
Mentor developers on writing performant code across frontend and backend layers.
What we look for.
6 things, one at a time. Keep scrolling.
Possess 5+ years of software development experience with performance specialization.
Demonstrate deep knowledge of full-stack web architectures with TypeScript, React, and Node.
Show extensive experience profiling SQL queries, execution plans, and connection pools.
Master performance profiling tools including Chrome DevTools, Lighthouse, and APMs.
Understand network protocols, HTTP/2, edge caching, and server concurrency.
Communicate empirical benchmark comparisons effectively to engineering and client teams.
What you get.
Three steps, no tricks.
- 1
Intro chat
A short call about what you want to work on and how you like to work.
- 2
Work review
Walk us through projects, code or designs you are proud of.
- 3
Paid task
A small paid task or pairing session, so both sides see the fit.
Apply for Full-Stack Performance Engineer .
Tell us about your work. We reply to every application, usually within a few days.