GTM Engineer, India

This is a remote position. IMPORTANT: PLEASE READ BEFORE APPLYING To be considered, you must follow the How to Apply instructions at the end of this job description and complete the Signalmash application form. Applications that do not include the completed form will not be reviewed. Automated or bulk applications that do not follow these instructions will be disregarded. About Signalmash Signalmash operates a cloud communications platform that enables businesses to manage and deliver RCS, SMS, and MMS messaging through carrier and technology-provider integrations. The platform includes customer onboarding, messaging APIs, routing, compliance, vendor integrations, usage tracking, and billing. As we scale our go-to-market motion, we are adding an India-based GTM Engineer to design, build, and operate the systems that power our outbound revenue engine. The Role The GTM Engineer will own the machinery of outbound: the systems that find the right companies, enrich and score them, reach them across email and LinkedIn with strong deliverability, and hand qualified conversations to our sales team with full context. This is an engineering role that serves sales, not a marketing role with tools. You will treat pipeline generation as a system that is instrumented, tested, and improved every week. You will work directly with US leadership, and what you build will become the operating system our SDRs run on. This is a hands-on builder position. The successful candidate must be comfortable wiring APIs and webhooks, debugging workflows at the data level, and proving with numbers that campaigns work before scaling them. Key Responsibilities Build and operate end-to-end outbound systems including ICP definition, list building, enrichment waterfalls, email verification, segmentation, and signal-based prospecting. Own cold-email infrastructure including domains, mailboxes, warmup, SPF, DKIM, DMARC, sender rotation, inbox placement monitoring, and send-volume discipline. Orchestrate m