Note: The job is a remote job and is open to candidates in USA. Enexus Global Inc. is seeking an autonomous, entrepreneurial Senior MarTech Engineer / AI Web Builder for a dedicated contract engagement to accelerate their B2B SaaS pipeline. The role involves taking ownership of high-performance marketing web properties, focusing on mobile-first optimization and engineering web-to-lead pipelines using advanced technologies.
Responsibilities
- Execute Mobile-First Web Builds: Rapidly build, optimize, and maintain responsive marketing sites, product feature matrices, and interactive tools using Astro’s island architecture and Contentful headless CMS, prioritizing mobile layouts and fluid viewport adaptation
- Optimize Mobile Performance & UX: Ensure perfect mobile Core Web Vitals (LCP, INP, CLS) by minimizing Javascript payloads on mobile devices, optimizing mobile asset loading, and designing touch-friendly, intuitive UI controls for AI conversational elements. [1]
- Drive B2B AI Visibility (LLMO/GEO): Structure and optimize site metadata, technical schemas, and product content to maximize our inclusion in mobile enterprise AI tool evaluations and conversational LLM queries
- Deploy MCP Server Architecture: Design and deploy an operational Model Context Protocol (MCP) server ecosystem to securely expose our API schemas and product documentation directly to developer-facing AI agents (e.g., Cursor, Claude Desktop)
- Integrate Cloud AI Features: Program and implement intelligent user experiences (such as dynamic, mobile-optimized ROI calculators and chat modules) using the AWS ecosystem (Lambda, Bedrock, OpenSearch)
- Maintain Cross-Device Enterprise Testing: Author and run robust end-to-end integration test suites with Playwright, mimicking both mobile and desktop viewports to prevent regressions in mobile signup flows, multi-step pricing layouts, and third-party webhooks
- Optimize Revenue Operations (RevOps): Connect mobile and web intent data directly to our revenue engine, building smooth, automated API connections into HubSpot CRM and triggering immediate sales engagement sequences via Outreach
Skills
- Must be fully available to work during North American business hours (overlapping at least 6 hours daily with EST/CST/PST teams) and join standups/Slack channels in real-time
- 4+ years of professional full-stack experience building scalable sites using Astro and advanced content modeling within Contentful, with a proven portfolio showcasing high-performance mobile web designs
- Direct, hands-on experience constructing or deploying MCP servers to facilitate context-sharing between web architectures and AI applications
- Production experience managing serverless components on AWS (Lambda, Gateway, S3, IAM) for full-stack frontend-to-AI orchestration
- Deep familiarity writing and executing integration tests with Playwright, specifically targeting mobile viewport emulation and touch interaction behaviors across complex, dynamic checkout or pricing pages
- Must have a dedicated home office setup, reliable high-speed internet, and a proven history of shipping code independently without micro-management
- Strong production knowledge of the HubSpot API (Custom Objects, lifecycle staging, and marketing attribution models)
- Experience with the Outreach API/Webhooks to auto-enroll hot leads based on high-intent AI web behaviors
Company Overview