Say hello to the state-of-art customer retention ecosystem

I help marketing leaders build bulletproof CRM and retention programs — connecting strategy, people, technology, and operations.

🔥Custom AI agents & microservices for your marketing tech stack. Learn more

🔥Drop the costs of your MarTech stack not compromising on functionality. Explore now

This might sound familiar to you:

Vouchers are not sustainableNo devs to help automate the dataCustomer reach is limited

Fix your problems by organizing your CRM & Retention workflow – build an ecosystem connecting the dots across all attributes for success.

Revenue potential from existing customers

My services

strategy

Strategy & Transformation

I help businesses improve CRM and retention by aligning efforts with clear KPIs, sharpening creative, and using data more effectively. Since effective retention often requires a mindset shift and cross-functional collaboration, I support teams through this transformation.

sdk

Marketing Technology

In the past 10+ years, I've led or supported 9 tech migrations and multiple RFPs. I help you decide what to automate, how to upgrade and when to migrate. From spotting hidden potential to full stack changes, I ensure your tech delivers real value.

groups

Operations

I help build and support high-performing CRM teams — whether by stepping in as an interim leader or assessing talent against your retention goals. With 7 years of leadership experience, I bring structure, clarity, and momentum — ensuring your team has the right skills and setup to deliver on your strategy.

assessment

Audit

Get a comprehensive assessment of your current CRM and retention setup. I'll analyze your strategy, tech stack, team structure, and operations to identify gaps, opportunities, and quick wins. This audit provides a clear roadmap for improving your customer retention.

About me

For 14 years, I focus on one thing: acquiring, retaining, and engaging customers across industries and business models. My growth and retention strategies have delivered up to 3% incremental value and improved team efficiency by more than 10%.

I bring a strong track record in stakeholder collaboration — including C-level executives — and deep expertise in data, marketing technology, and digital strategy. Data-driven and tech-savvy, I help businesses build smart & effective customer relationships.

[Logo]

My profile in numbers

€342k revenuegenerated with a single upsell email campaign

11 CRM channelsI work with campaigns & lifecycle journeys across email, mobile push, browser push, in-app, WhatsApp, SMS, print, phone, retargeting, onsite personalization, on-platform placements & telematics

200% ▲in email reach in Germany by improving consent management — achieved through close collaboration with legal and privacy teams

7-digit MarTech budgetmanaged for the marketing tech stack — balancing cost, performance, and scalability

11% annual savingsachieved during the latest tech stack migration — while expanding functionality and unlocking new use cases

Up to 50 stakeholdersinvolved in cross-functional collaboration on large-scale local and global projects

95% team retentionover a 24-month period — creating an environment where team members felt comfortable and fairly treated both as individuals and employees

1.5 yearsdeep dive into the architecture and technical processes of Customer Data Platform (CDP) software — gained through working experience at a MarTech vendor.

9 MarTech migrationsled or supported since 2015 — covering both strategic planning and technical execution

Industries

eCommerce & SubscriptionsI worked with numerous e-Commerce brands to deliver global lifecycle communications, lead campaign management, and support retention and upsell programs.

SportsWith nearly 6 years at DAZN in DACH and central roles, I deeply understand sports fan behavior across Europe and beyond — turning that into effective engagement and retention strategies.

Travel & LogisticsSupporting Deutsche Bahn’s first CDP experiments and customer profiling at a travel provider, I bring the know-how to drive retention for booking platforms, airlines & mobility services.

FinTech & InsurTechConsulted on customer activation and onboarding flow design for several tech startups in Finance and Insurance industries — focusing on lifetime value from day one.

This is how I work

Complete the self-audit (optional)

Fill out a quick AI-powered online assessment to get a snapshot of your current CRM & retention setup. Select the audit type here.

Book a call

Schedule a free call with me to discuss the outcome of your audit and your goals. Book a call here.

Run the review

I'll review the results of your audit and identify key opportunities and gaps.

Get to the real problem

I'll help you pinpoint your real CRM & retention challenges and next steps.

Let's talk about your growth & retention goals

Schedule a free 30-minute call to discuss your current setup and challenges.

Get in touch

Let's get started.Feel free to reach the way it works best for you.

Connect on LinkedInFollow on Substackhi@romensky.digitalBerlin, Germany 🇩🇪