💻 GTM Engineer

📍 This role can be based in Paris, France or Brussels, Belgium

✦ SQL, APIs & AI agents | Cross-BU scope

Build what’s next with us

efficy Group is the European home for Tribe CRM, efficy CRM, and Apsis. For years, our brands have earned trust across European markets by building systems that are sovereign, compliant, and now AI-native. Today, we’re bringing that story together under one roof, as your European partner for AI-powered CRM.

We help organisations navigate the agentic era of customer intelligence, automating smarter decisions, building stronger relationships, and growing sustainably over time. Over 330,000 users across 60+ countries rely on us to grow smarter, move faster, and build lasting business relationships.

Job Overview

We’re looking for a GTM Engineer to build the technical backbone of our go-to-market stack: data pipelines, integrations, automations and AI agents that give our Marketing, Sales and Customer Success teams cleaner data and sharper targeting. You’ll combine engineering rigour with business judgement, and report to the Head of RevOps. You’ll support business units across efficy Group wherever the stack needs you.

What’s in it for you?

✓ Real ownership of the GTM tech stack, from data models to integrations and automation

✓ Hands-on work with SQL, APIs, LLMs, Clay, Lemlist and API-based workflows

✓ Your own Claude licence, weekly AI training and shared best practices

✓ European SaaS Group exposure

✓ Team events & people experience program

💡 Good to know

Paris: CDI, temps plein, avantages standard efficy France (titres-restaurant, mutuelle, transport...)

Brussels: permanent, 38h/week, avantages standard efficy Belgium (lunch vouchers, health insurance...)

What you’ll be doing

Data pipelines: build and maintain SQL queries and data pipelines that unify CRM, marketing and sales data, and own the data model behind dashboards and segmentation

Integrations: connect CRM, marketing automation (HubSpot, Marketo, Pardot) and outreach tools through native integrations, middleware or direct APIs, including webhooks and event-driven flows

Automation: design and deploy workflows that trigger lead nurturing, follow-up and campaign actions for the SDR and BDR teams, with proper error handling and monitoring

AI agents: design and ship LLM-based workflows and agents, and get Sales and Customer Success to adopt them

Campaign engineering: build multi-channel outbound campaigns in Lemlist, Outreach and Clay, with A/B testing and persona-driven segmentation

Data quality: own deduplication, enrichment and suppression, in line with GDPR and CAN-SPAM

Reporting: define KPIs and build the dashboards and queries that measure them

Who you are

Experience: 2 to 5 years in GTM engineering, RevOps or automation at a B2B SaaS company

SQL: write complex queries confidently, model data for analysis and reporting

APIs and data: hands-on with REST APIs, webhooks and data pipelines

Tools: advanced use of Clay, Lemlist, Outreach or HubSpot

AI: hands-on experience with LLMs and AI workflows, with concrete projects to show

Collaboration: you translate business needs into technical solutions and get your tools adopted

Language proficiency: full professional fluency in English

French is a plus

Hybrid policy: you can come to the Paris or Brussels office three days a week

✦ Ready to make an impact with us? Apply today. Please submit your application in English.

efficy Group is a people-first employer committed to equal opportunities. We welcome you exactly as you are, whatever your gender identity, sexual orientation, religion, ethnicity, age or disability status.

Our recruitment team uses an AI assistant for search, summaries and administrative tasks. No decision about you is taken solely by automated means: every application is assessed by a member of our team.

efficy Group does not accept unsolicited assistance from search firms. Résumés sent to any efficy Group employee without a written search agreement become the property of efficy Group, and no fees are paid for unsolicited referrals.