Senior Software Engineer (Agentic Search) – Web Rendering Engineer

Jobgether; France; Sur place; EUR 120 000 - 180 000; Plein temps

Avantages offerts par ce poste

Remote UK

Ownership of rendering infra

Internet-scale challenges

Multi-region infra

AI agentic rendering

Résumé du poste

Jobgether is seeking a Senior Software Engineer (Agentic Search) – Web Rendering Engineer based in France. You will design and operate rendering infrastructure that powers agentic search and AI systems, transforming modern web apps into high-quality content for search and real-time reasoning.

You will tackle challenges at the intersection of browser tech, distributed infra, JS execution, and large-scale content processing, owning critical rendering systems and collaborating across teams.

Qualifications

• Minimum 5+ years in production backend, infra, or distributed systems.
• Deep expertise in browser rendering and modern web infra.
• Strong understanding of Chromium rendering pipeline (DOM/Layout/Paint/Compositing).
• Experience with JavaScript execution, rendering lifecycles, page readiness.
• Hands-on with Playwright, Puppeteer, Selenium, or similar tools.
• Experience with React, Vue, Angular, or Svelte in production apps.
• Knowledge of SSR/CSR/SPA/PWA delivery and resource loading.

Responsabilités

• Design and build large-scale rendering systems for internet-scale applications.
• Develop browser-based infrastructure to run complex JavaScript and render content.
• Research how frontend frameworks render across architectures and environments.
• Improve rendering quality, reliability, and performance across sites.
• Optimize infrastructure for cost, latency, throughput and scalability.
• Investigate browser rendering behavior, page readiness, and dynamic loading.
• Translate research into reliable, production-grade systems.
• Take end-to-end ownership of rendering infra and contribute to tech decisions.
• Collaborate with teams to support agentic search and AI workloads.

Connaissances

5+ years experience

Browser rendering

Chromium pipeline

JavaScript in browsers

Headless browser tooling

Modern frontend frameworks

Distributed systems

CDP / DevTools

Outils

Playwright

Puppeteer

Selenium

Chrome DevTools Protocol

Browser automation

Description du poste

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer (Agentic Search) – Web Rendering Engineer based in France.

This is a senior engineering opportunity focused on building the rendering infrastructure that powers next-generation agentic search and AI systems. You will design and operate systems that transform modern, dynamic web applications into high-quality structured content for search and real-time reasoning. The role sits at the intersection of browser technology, distributed infrastructure, JavaScript execution, and large-scale content processing. You will tackle challenges involving billions of pages while balancing rendering quality, throughput, latency, resource utilization, and cost. Your work will directly enable AI agents to reliably access and understand information from the modern web. This role offers significant ownership within a small, highly technical, AI-native engineering environment.

Accountabilities:

• Design and build large-scale rendering systems capable of processing modern web applications at internet scale.
• Develop reliable browser-based infrastructure capable of executing complex JavaScript applications and accurately capturing rendered content.
• Research how modern frontend frameworks render and deliver content across different architectures and execution environments.
• Improve rendering quality, completeness, reliability, and performance across a wide range of websites.
• Optimize rendering infrastructure for cost, latency, resource utilization, throughput, and scalability.
• Investigate browser rendering behavior, page readiness, resource loading, and dynamic content execution.
• Translate research and experimentation into reliable, maintainable production systems.
• Help address large-scale infrastructure challenges including bursty workloads, caching, multi-region systems, and millions of daily requests.
• Take end-to-end ownership of rendering infrastructure and contribute to technical decisions across the system.
• Collaborate with engineering teams to ensure rendering capabilities reliably support agentic search and AI workloads.

Requirements:

• 5+ years of professional software engineering experience working on production backend, infrastructure, or distributed systems.
• Deep expertise in several areas of browser rendering and modern web infrastructure.
• Strong understanding of the Chromium rendering pipeline, including DOM, Layout, Paint, and Compositing.
• Strong knowledge of JavaScript execution within browsers, rendering lifecycles, and page readiness mechanisms.
• Experience with headless browser execution, browser instrumentation, and Chrome DevTools Protocol (CDP).
• Hands-on experience with Playwright, Puppeteer, Selenium, or comparable browser automation frameworks.
• Strong understanding of modern frontend architectures and frameworks such as React, Vue, Angular, or Svelte.
• Experience with server-side rendering, client-side rendering, streaming rendering, single-page applications, or progressive web applications.
• Understanding of resource loading, lazy loading, modern JavaScript bundles, and dynamic data delivery.
• Experience designing and operating high-throughput content processing pipelines at internet scale is highly valuable.
• Strong knowledge of distributed systems design and performance optimization.
• Open-source contributions, engineering community involvement, conference presentations, or technical publications are a plus.
• Strong problem-solving skills and the ability to work independently on complex infrastructure challenges.
• Willingness to participate in coding interviews as part of the hiring process.

Benefits:

• Remote opportunity for candidates based in the United Kingdom.
• High degree of ownership over critical rendering infrastructure.
• Opportunity to work on real-world internet-scale challenges involving millions of daily requests and bursty workloads.
• Exposure to multi-region infrastructure, caching, performance optimization, and large-scale content processing.
• Opportunity to build infrastructure directly powering AI agents and agentic search applications.
• Small, highly technical engineering environment with broad responsibility and impact.
• Opportunity to work at the intersection of AI, browser technology, distributed systems, and modern web infrastructure.

How Jobgether works:

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.