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Cosuno is a digital platform for construction tendering in the German-speaking market, connecting general contractors who publish bid packages with subcontractors who bid on them. As GTM & Growth Engineer, you will be the first engineer embedded in a lean marketing team, building automation and data infrastructure that powers marketing and growth operations.
You will own the full growth stack architecture and automation across multiple domains:
**Marketing & Lifecycle Operations**: Design and implement triggers, segments, workflows and personalization in ActiveCampaign and Salesforce so customer journeys react dynamically to behavior. Automate lifecycle campaigns and customer engagement at scale.
**Paid Marketing Automation**: Build audience syncs and suppression logic from CRM and product data. Implement conversion tracking feedback loops to ad platforms. Create campaign feeds and adaptive landing pages that respond to marketplace bid gaps. Work closely with the Demand Generation Manager on strategy execution.
**Data & Signal Infrastructure**: Connect product events, Salesforce, ActiveCampaign, enrichment services, transaction history and BigQuery warehouse into a clean, usable data layer. Ensure data quality and accessibility across the stack.
**Creative Production Automation**: Build systems to generate ad, email and landing-page variants within brand templates, with human review gates before launch.
**Reusable Capabilities**: Design solutions that work in one area (paid, lifecycle, sales, content) and can be repurposed across others, multiplying impact.
**Manual Work Elimination**: Identify and automate repetitive tasks like reporting, list building, call transcripts and enrichment. Integrate LLM-based tools including a content engine for SEO and AI search.
**Experimentation Infrastructure**: Build reusable test frameworks with holdouts and measurement so the team can launch experiments in days, not weeks.
**Launch Discipline**: Implement human checks in every automation, proof-of-concept against controls before scaling, and structured launch plans with rollback capability.
You will work closely with the Senior Lifecycle & Customer Growth Manager, Demand Generation Manager and Marketing Lead. The role emphasizes shipping outcomes over infrastructure, measuring impact, and maintaining rigor in what goes to production.
**Requirements**
- Proven track record building marketing or growth automation in production: paid media integrations, CRM and lifecycle workflows, data pipelines. Experience in B2B SaaS or two-sided marketplaces preferred.
- Hands-on expertise with APIs, webhooks and automation tools (n8n, Make, Zapier, Clay). Python or TypeScript and SQL are strong pluses.
- Deep knowledge of ad platform and CRM data: audiences, conversion tracking, attribution limitations.
- Shipped LLM-based or agentic automation into real workflows (not just AI-assisted copywriting).
- Outcomes-focused mindset: prioritize working solutions over perfect infrastructure; measure what you build.
- Quality discipline: manual output verification, control testing before trusting results, step-by-step launch planning with rollback paths.
- Ability to communicate clearly with marketers and explain technical trade-offs plainly.
- Fluent English; German is a plus.
