Valeryia KastamaravaGet in touch

Open to new roles, based in Warsaw

Valeryia Kastamarava

Marketing Manager, product and funnel growth

I launch and scale digital products across B2C and B2B markets. I turn customer, market and competitor insights into acquisition funnels, structured tests and repeatable growth, and I’ve led cross-functional teams of up to 10 specialists.

Get in touchSee my experience
  • 3×D2C revenue
  • 600+IELTS enrollments
  • 15%revenue from a new service
  • 4×subscription LTV
Warsaw

How I work

The same five stages on every launch, from first interview to repeatable growth.

  1. 1Research

    Talk to customers, map competitors and size the opportunity before anything is built.

  2. 2Position

    Turn the insight into an offer, a price and a message people understand in seconds.

  3. 3Launch

    Build the funnel: channels, landing pages, creatives and CRM, then ship the first version.

  4. 4Test

    Run structured tests on creatives, pages and offers, and let funnel data pick the winner.

  5. 5Scale

    Put budget behind what works, then grow LTV and retention with lifecycle marketing.

Work experience

Three roles, each with the problem, what I did and the measured result.

Malyshevich Consulting

Marketing Manager

Overview

Launched new products and scaled existing ones for clients in B2B and B2C niches.

View case study

Problem

Four clients in four niches each needed a new product launched or an existing one scaled.

Tasks and solution

  • Turned customer and competitor research into positioning, pricing and funnel structure, then a focused test plan.
  • Built acquisition funnels across paid social, retargeting, influencers, community and email; tested creatives, landing pages and offers and iterated on performance data.
  • Coordinated up to 10 specialists across paid media, social, design and production.

Results, one per project

  • EdTech · B2C600+enrollments in a new IELTS course in 5 months
  • Beauty services · B2C60%master workload, up from 44%, via content strategy and client-base segmentation
  • Apparel brand · B2C3×revenue in the first 2 months after launch; concept to first sales in 2.5 months
  • HoReCa · B2B2C1.5×turnover in 6 months, via a partner programme and distributor network

Grizzly Digital Company

Marketing Manager

Overview

B2B MarTech company serving European markets.

Problem

A technical AI Research / GEO service needed a clear story and a sales path as an extension of the SEO offer.

Tasks and solution

  • Launched the service and shaped its positioning, turning a technical product into clear customer messaging.
  • Built the full go-to-market kit:
    • Landing page
    • Lead magnets
    • Sales decks
    • Articles
    • Email sequences
    • Follow-ups
  • Coordinated SEO, design, copy and development; supported the B2B community and direct client communication.

Results

  • New service15%of company revenue came from the new service
  • Content+40%organic engagement

LLC Lifestyle

Junior Marketing Manager

Overview

EdTech, fitness and wellness services.

View case study

Problem

Grow demand across fitness and wellness locations, and build an education subscription people keep paying for.

Tasks and solution

  • Supported marketing across locations through paid acquisition, SMM, influencers, partnerships and CRM personalization.
  • Improved lifecycle and sales with CRM segments, tailored offers and retention communications, plus new sales scripts.
  • Built an education subscription product end to end:
    1. Discovery
    2. Offer
    3. Roadmap
    4. Funnel
    5. Lifecycle

Results

  • Subscription4×LTV, from $300 to $1,200
  • Subscription90%retention

Notes and guides

My thoughts, guides and materials I share with the marketing community: what I use, what it changes, and the numbers behind it.

Chart: share of US marketing job posts asking for AI skills, Q1 vs Q3 2026AI in marketing

How I use AI in marketing: one model per job

Which AI model I pick for each marketing job, what it changes in the process, and where I have already done it.26 Oct 2026 · 5 min read
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