MARKETING MANAGER / GTM STRATEGIST

I turn customer insight into products that grow.

Marketing Manager with 4+ years across EdTech, MarTech, B2B and D2C — from customer research and positioning to GTM, funnels and growth.

Explore my work →Get in touch
FROM INSIGHT TO IMPACT

Research → Positioning → GTM → Funnel → Growth

Outcome-led marketing with business metrics at the center.

SELECTED IMPACT

Numbers that tell the story.

Selected outcomes from launches, commercial-system building and retention work.

15%of total revenue from a new product
+40%digital presence growth
4×LTV growth
90%retention
CASE STUDIES

Selected work

From business context to decisions, execution stack and measurable outcomes.

MARTECH / B2B

Launching a new product and expanding digital presence

Content, community, sales enablement and email marketing for Grizzly Digital Company.

View case →
CONSULTING / B2B

Building commercial systems for growth

Marketing, sales and measurement across client businesses and new offerings.

View case →
FITNESS / SUBSCRIPTION

Turning founder expertise into a subscription product

Research-led product creation, personal brand and a community-led retention model.

View case →
D2C / E-COMMERCE

Taking a D2C brand from concept to first sales

A 2.5-month launch covering product, unit economics, go-to-market and acquisition.

View case →
EXPERIENCE

Where I've worked.

Roles spanning consulting, MarTech, digital products, fitness and EdTech.

2025 — 2026

Malyshevich Consulting · Marketing Manager / GTM Strategist

Built marketing and sales systems for B2B clients; led D2C and product-launch projects.

Commercial strategy · funnels · analytics · GTM
2024 — 2025

Grizzly Digital Company · Marketing Manager

Owned launch communication, content ecosystem, community and sales enablement.

15% of total revenue from new product · +40% digital presence
2022 — 2024

Independent Marketing Manager · Fitness / EdTech

Created and launched an international subscription product around founder expertise.

$20K in first 3 months · 4× LTV · 90% retention
MATERIALS

Room for the work behind the work.

Future pages for project assets are structured and ready; materials will be added when available.

Swipe, drag or scroll to browse — tap a card to open it full-size.
Pifagor School
Pifagor SchoolWebsite overview
Pifagor School
Pifagor SchoolBranded materials
LIFESTYLE
LIFESTYLEFitness club website
Ervia Aesthetic
Ervia AestheticContent grid & socials
Brand Project
Brand ProjectContent grid & socials
Impact Report
Impact ReportCarousel, slides 1–3
Impact Report
Impact ReportCarousel, slides 4–6
CONTACT

Let's get in touch.

Open to marketing, growth and product-focused opportunities.

✉Emailkosstomarova@gmail.com☎Phone+48 573 073 305inLinkedInvaleryia-kastamarava➤Telegram@kosstomarova
← Back to portfolio
CASE / MARTECH / B2B

Launching a new product and expanding Grizzly's digital presence.

Grizzly Digital Company · Marketing Manager · 2024–2025

OVERVIEW / ROLE

Owned the go-to-market communication for a new product alongside the company's content, community and sales-enablement ecosystem.

BUSINESS PROBLEM / GOAL

Bring a new offer to market, expand the digital footprint and equip the commercial team with clear, credible materials.

MY TASKS / ACTIONS + STACK

Built social content and an editorial calendar; wrote blog and Medium articles; led the Telegram community; created educational materials and lead magnets.

MY TASKS / ACTIONS + STACK

Wrote product descriptions and briefs for service pages with copywriters, SEO specialists and developers. Created personalised pitch decks with implementation forecasts and built email marketing for demand generation and sales follow-up.

RESULTS / METRICS

15%of total revenue came from the new product
+40%growth in digital presence
New channelsadded touchpoints for content, community and demand generation
← Back to portfolio
CASE / CONSULTING / B2B

Building commercial systems for B2B companies ready to grow.

Malyshevich Consulting · Marketing Manager / GTM Strategist · 2025–2026

OVERVIEW / ROLE

Built commercial departments for B2B clients: marketing, sales and performance measurement as one operating system.

BUSINESS PROBLEM / GOAL

Solve scaling challenges, launch new products and brands, and establish marketing teams linked to sales and business metrics.

MY TASKS / ACTIONS + STACK

Marketing strategy; audience and competitor research; positioning, packaging and product lines; landing pages, content, social, campaigns, loyalty programmes and communication funnels. CJM, UGC/influencers, automation and business analytics.

PROJECT OUTCOMES

EdTech: launched a new product and enrolled 600 students through fast creative and offer testing, landing pages, content, sales and end-to-end analytics.

B2C services: increased specialist utilisation and generated $290K through content and campaign support, a loyalty programme, segmentation and CRM communications.

B2B wholesale: supported scaling through positioning, product packaging, acquisition channels and measurement.

D2C / e-commerce: took a new brand from research and concept to first sales and early growth.

RESULTS / METRICS

600students enrolled in EdTech
$290Krevenue in B2C services
B2B + D2Ccommercial systems for scaling and launches
← Back to portfolio
CASE / FITNESS / SUBSCRIPTION

Turning founder expertise into a subscription product people stayed with.

Independent Marketing Manager · 2022–2024

OVERVIEW / ROLE

Led product and go-to-market work for an international fitness education business built around the founder's expertise.

BUSINESS PROBLEM / GOAL

Validate the audience need, turn knowledge into a coherent product and create a model that could acquire, retain and grow a member base.

MY TASKS / ACTIONS + STACK

Ran CustDev and translated insight into product creation. Created the site, social-media approach and founder personal-brand platform.

MY TASKS / ACTIONS + STACK

Mapped CJM, planned the product roadmap and designed a subscription model + community with acquisition and member communication flows.

RESULTS / METRICS

4×LTV growth
90%retention
$20Krevenue in the first 3 months
← Back to portfolio
CASE / D2C / E-COMMERCE

Taking a D2C brand from concept to first sales in 2.5 months.

Malyshevich Consulting · D2C / e-commerce launch

OVERVIEW / ROLE

Led an end-to-end D2C launch: from market evidence and product logic to a working acquisition and sales system.

BUSINESS PROBLEM / GOAL

Test a new consumer opportunity quickly, create a financially viable offer and turn early traction into a repeatable growth engine.

MY TASKS / ACTIONS + STACK

Market research and JTBD; concept, positioning, product matrix, pricing, unit economics, GTM, social and UGC, CJM, marketplaces, sales scripts and analytics.

MY TASKS / ACTIONS + STACK

Launched Meta + Google acquisition and iterated creative, offer and sales mechanics from funnel analytics and early demand.

RESULTS / METRICS

2.5months from concept to launch
First salesvalidated after launch
3×growth in the first months