Cosuno seeks a Senior Lifecycle & Retention Manager to build growth programs that turn new users into active, paying, and retained customers from Berlin or remotely. This role suits an experienced B2B growth professional passionate about building AI-native CRM systems and scaling marketplace liquidity.
Role Overview
Cosuno operates a B2B marketplace linking general contractors and subcontractors across the construction sector. As the Senior Lifecycle & Retention Manager, the candidate will join the marketing lead within a compact team to shape how the department scales. The mission centers on developing the growth engine that transitions users toward an automated, signal-driven framework capable of determining subsequent actions autonomously.
Key Responsibilities
Design CRM programs and lifecycle journeys that boost adoption and conversion, spanning initial tender discovery to paid conversion for subcontractors, alongside early product adoption and repeat tendering for construction companies.
Collaborate with the Marketing Lead to create an agentic, signal-driven system converting behavioral data, call insights, and enrichment signals into personalized triggers, replacing static paths.
Conduct A/B testing and utilize holdout groups to ensure decisions rely on incremental impact rather than sheer campaign output.
Expand successful initiatives into repeatable systems rather than relying on one-off campaigns.
Align journeys with Sales and Customer Success to facilitate human touchpoints when automation is insufficient.
Utilize CRM tools to drive marketplace liquidity by matching the right subcontractors with appropriate tenders while orchestrating email, in-app messaging, transactional communication, and recommendations alongside Product.
Support growth initiatives like referral programs, managing tasks from initial design through to CRM execution.
Requirements
Demonstrated ownership of CRM, lifecycle, retention, or growth programs with verifiable commercial impact, ideally within B2B SaaS or two-sided business models.
Direct experience influencing conversion, activation, or retention metrics alongside comfort with data and experimentation.
Genuine AI-native background with proven experience building AI-driven automation or agentic CRM systems.
Ability to write and execute SQL queries independently.
Capable of moving from data to insight, idea, implementation, and results autonomously while thriving in ambiguous environments.
Cross-functional collaboration skills across Product, Sales, Customer Success, and Engineering with a focus on measurable business impact.
Proficiency in written and spoken German and English.
Nice to Have
Practical, hands-on experience with ActiveCampaign and Salesforce or comparable CRM tools.
Skills and Tools
SQL
CRM and Lifecycle Management
A/B Testing and Experimentation
AI-driven Automation and Agentic Systems
ActiveCampaign (Preferred)
Salesforce (Preferred)
German and English Languages
Salary and Benefits
Competitive salary ranging from 65,000 to 85,000 EUR per year on a permanent contract with a stable, well-funded company.
High degree of ownership and room to shape lifecycle and CRM strategies as an early marketing hire.
Opportunity to work with cutting-edge internal AI tools and fast decision-making processes.
Flexible working hours with options for fully remote work or from the Berlin Kreuzberg office.
A brand new MacBook Pro for top-notch equipment.
Regular team events, off-sites, and an open, international team culture.
Continuous professional development supported by an open feedback culture and regular 1:1 sessions.
About the Company
Cosuno is a rapidly expanding technology startup digitizing tenders and procurement processes to make the construction industry more efficient and transparent. The company uses AI to analyze millions of price data points to help construction companies bid better, solving complex industry challenges through innovation and simplicity.
How to Apply
Interested candidates should visit the official company careers page at cosuno.com to submit an application.
