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Roles
Compensation
- Salary period
- unclear
Tech stack
Required
Location
Remote: North America / Europe
Work setup
- Employment
- full-time
- Level
- Senior
- Remote policy
- REMOTE: North America / Europe, UTC-8 to UTC+2 preferred
- Remote scope
- region-limited
- Timezones
- UTC-8 to UTC+2 preferred
- Travel
- None visible
- Visa
- unclear
Role details
Responsibilities
- Own and continue to scale Lokker’s scanning infrastructure
- Build backend systems for high-volume website scanning
- Develop browser automation systems
- Support distributed scanning
- Work on networking, reliability, performance, and cost optimization
- Designing and maintaining scalable backend systems that power high-volume website and public-facing infrastructure scanning
- Improving scan accuracy across complex web environments, including dynamic JavaScript-heavy sites, tag managers, consent banners, personalization platforms, and marketing/adtech stacks
- Hardening scanner behavior against bot detection, rate limiting, server-side filtering, WAFs, CDNs, fraud-prevention systems, and other mechanisms that may alter or block scan results
- Building scanning strategies that operate reliably across many geographies, network conditions, browser configurations, consent states, and infrastructure paths
- Reducing infrastructure cost while improving throughput, resilience, and data quality
- Expanding distributed scanning capabilities, including the ability to scan from many locations in parallel
- Developing new approaches for observing scripts, pixels, cookies, network calls, SDK/API activity, ingress and egress behavior, and browser-side data leakage
- Owning the quality, reliability, and future-readiness of the scanner as a core Lokker platform capability
Requirements
- Relevant experience with distributed systems
- Experience with queues/orchestration
- Experience with high-scale backend services
- Experience with HTTP/TLS/DNS
- Experience with proxies
- Experience with CDNs
- Experience with WAFs
- Experience with bot detection
- Experience with fingerprinting
- Experience with headless browsers
- Experience with crawlers
- Experience with scanners or synthetic monitoring
- Production experience in Go
- Production experience in Rust
- Production experience in TypeScript/Node.js
- Production experience in C++ or similar
Application
Apply via the provided link: https://lokker.com/careers/openings/senior-backend-engineer-scanning-infrastructure
- Portfolio
- unclear
- GitHub
- unclear
- Cover letter
- unclear
- Apply flow
- external
Company context
A privacy platform that helps organizations understand and control what is happening across public-facing infrastructure.
- Product
- Scanning infrastructure for public-facing web and browser-side activity (websites, browser apps, scripts, pixels, cookies, tags, forms, SDK/API calls, and browser-side data flows)
- Industry
- Privacy platform
Description
Lokker is a privacy platform that helps organizations understand and control what is happening across public-facing infrastructure: websites, browser-side applications, scripts, pixels, cookies, tags, forms, SDK/API calls, and browser-side data flows. We are hiring a senior backend engineer to own and continue to scale Lokker’s scanning infrastructure. This role focuses on backend systems for high-volume website scanning, browser automation, distributed scanning, networking, reliability, performance, and cost optimization. Relevant experience includes distributed systems, queues/orchestration, high-scale backend services, HTTP/TLS/DNS, proxies, CDNs, WAFs, bot detection, fingerprinting, headless browsers, crawlers, scanners, or synthetic monitoring. Production experience in Go, Rust, TypeScript/Node.js, C++, or similar. Apply: https://lokker.com/careers/openings/senior-backend-engineer-scanning-infrastructure
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