Senior GTM Engineer

Join the GTM Revolution at Sales Captain - Where B2B Growth Happens

Since our beginnings in 2021, Sales Captain has grown into a global force, working with fast-growing B2B brands, YC & Techstars startups, and Series B/C companies, helping them go to market through predictable, scalable outbound systems.

We're looking for a Senior GTM Engineer to own and evolve our outbound revenue infrastructure across client accounts.

This is a hands-on senior role sitting at the intersection of data, automation, AI, deliverability, intent signals, and outbound strategy
. Beyond building systems yourself, you'll help set technical standards, introduce new GTM technologies, and mentor other team members.

This is a full-time, remote role, working EU hours.

You'll work closely with GTM Strategists, Campaign Managers, and other GTM Engineers to architect scalable outbound systems from ICP definition through campaign execution and reporting.

You'll own complex Clay workflows, data infrastructure, intent and signal-based targeting, automation, and deliverability, while continuously testing new AI and GTM tools that can improve our results.

We're looking for someone who can not only build great systems, but also lead technically, challenge existing processes, and help raise the standard of the wider team.

• Architect end-to-end outbound systems, from ICP and TAM definition through enrichment, sequencing, CRM sync, and performance reporting
• Build and optimize advanced Clay workflows, including enrichment waterfalls, Claygent, AI columns, conditional logic, and custom API integrations
• Own and improve email deliverability infrastructure, including domains, inbox health, sending infrastructure, authentication, reputation, and scaling best practices
• Design intent and signal-based outbound systems using signals such as job changes, funding, hiring activity, website intent, technology adoption, social activity, and other buying signals
• Build automation workflows with n8n, Make, Zapier, APIs, and webhooks
• Use AI and LLMs to improve prospect research, qualification, personalization, data processing, and campaign workflows
• Continuously explore and test new AI and GTM technologies, identifying tools and approaches that can give Sales Captain and our clients an advantage
• Write lightweight Python or JavaScript and work directly with APIs when no-code tools aren't enough
• Partner with GTM Strategists to improve targeting, campaign architecture, and outbound performance
• Establish best practices and documentation for GTM engineering workflows
• Mentor junior and mid-level GTM Engineers, review workflows, troubleshoot complex problems, and help the team develop technically
• Proactively identify inefficient processes and design better, more scalable solutions

You should have:

• 3+ years of experience in GTM Engineering, Rev Ops, outbound operations, growth engineering, or a closely related role
• Strong hands-on experience building outbound systems in a B2B SaaS, GTM agency, consultancy, or fast-moving technology environment
• Advanced experience with Clay, including complex enrichment workflows, Claygent, AI columns, waterfalls, and APIs
• Strong understanding of email deliverability, sending infrastructure, domain reputation, authentication, and inbox health
• Experience designing campaigns around intent data and buying signals, rather than relying only on static prospect lists
• Strong knowledge of the modern GTM tooling ecosystem and genuine curiosity around emerging AI and automation tools
• Comfort working with APIs, webhooks, JSON, automation platforms, and basic Python or Java Script
• A strong commercial mindset - you understand ICPs, messaging, outbound performance, pipeline, and why targeting decisions matter
• Strong problem-solving skills and the ability to design systems rather than simply execute predefined tasks
• Experience mentoring, supporting, or reviewing the work of other team members
• Excellent English communication skills (C1-C2), with the ability to explain technical concepts clearly to non-technical stakeholders
• Experience working with Tech, SaaS, or B2B software companies

We're also open to candidates coming from Rev Ops, growth engineering, Clay consulting, outbound operations, or highly technical SDR/BDR backgrounds who have transitioned into systems building.

You are successful in this role if:

• GTM Strategists trust the systems and data you build without needing to recheck everything
• Our outbound infrastructure…