Web Infrastructure Engineer — Real-Time Performance & Equity

Methodfi; United Kingdom; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading tech company in the UK is seeking a Web Infrastructure Engineer to enhance performance across their AI-native CRM stack. In this role, you will lead initiatives improving both frontend and backend performance, integrating metrics and performance dashboards. The ideal candidate has deep expertise in JavaScript and TypeScript, with a strong understanding of performance tooling. You will enjoy a supportive work environment, equity options, and generous holiday leave.

Benefits

Equity in an early-stage company

25 days holiday plus local public holidays

Team off-site events in various locations

Qualifications

• Deep expertise in JavaScript and TypeScript performance, especially event-loop behavior and memory management.
• Proven experience in designing and optimizing internal API and service-layer architecture.
• Strong familiarity with performance tooling such as Chrome DevTools, Node profiler, and APM platforms.

Responsibilities

• Lead initiatives to improve performance in the frontend and backend.
• Build and integrate metrics, tracing, and performance dashboards.
• Define internal best practices and tooling for web infrastructure.

Skills

JavaScript performance

TypeScript performance

Frontend performance patterns

Performance tooling

Excellent communication skills

Tools

Chrome DevTools

Node profiler/inspector

Datadog

Sentry

Job description

A leading tech company in the UK is seeking a Web Infrastructure Engineer to enhance performance across their AI-native CRM stack. In this role, you will lead initiatives improving both frontend and backend performance, integrating metrics and performance dashboards. The ideal candidate has deep expertise in JavaScript and TypeScript, with a strong understanding of performance tooling. You will enjoy a supportive work environment, equity options, and generous holiday leave.