Fractional CMO
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Fractional CMO for e-commerce, B2C and B2B

I’m a part-time head of marketing. I set the direction and budget, coordinate your team and agencies, and take responsibility for results. No full-time hire and no months of recruiting.

I don’t stop at recommendations. I run strategy and campaigns myself, and for creative, SEO, automation, more complex analytics or IT I have trusted partners. I coordinate them and take responsibility for their work.

  • A plan for the next quarter built on margin, not just ROAS
  • Campaigns in Google, Meta, LinkedIn and TikTok that I run myself, in Poland and abroad
  • One point of contact and one clear report for you and your leadership team, showing all of marketing and its impact on the business
Jędrzej Zarychta, Fractional CMO and Interim Marketing ManagerJędrzej Zarychta
Fractional CMO and Interim Marketing Manager
12+ years of experience150+ projectsE-commerce, B2C, B2B
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    Brands I've worked with

    Selected project results

    E-commerce, beauty
    €15k

    in additional monthly profit from growth initiatives, plus 350+ new customers a month

    Offline business, health
    €1.4M+

    in annual revenue from subscription customers won through campaigns, with 25% of leads turned into sales

    B2B services company
    50 SQLs

    sales-qualified leads in the first month and 10 days to validate the campaign assumptions

    E-commerce, food
    115%

    year-over-year sales growth and 800+ leads a month

    B2B wholesaler, fashion
    14x ROAS

    and 70+ new customers from a one-month campaign

    Online subscription business
    20,000+

    sales leads, 8% of which became customers

    Amounts converted from PLN and rounded. No client names.

    What I do as your fractional CMO

    Strategy and growth management

    • Marketing and e-commerce strategy: target groups, competitors, messaging and brand positioning
    • A market entry (go-to-market) plan and a pilot before you commit a big budget
    • The sales funnel, from the first contact with your brand to purchase and repeat purchase
    • Budget split across channels, and a clear call on where not to spend

    Campaigns and analytics

    • I set up and run campaigns myself in Google, Meta, LinkedIn and TikTok, plus affiliate marketing
    • I set up analytics (GA4, Google Tag Manager, MS Clarity) and dashboards showing sales, margin and marketing costs myself at a basic level, and hand more complex implementations to partners
    • Every month I check costs, CAC, ROAS, ROI, LTV and retention

    Partners: I coordinate them and take responsibility

    • I work as an extension of your team. For creative, SEO, BI, UX/UI and IT I have trusted partners whom I choose for the task, coordinate and hold accountable for results
    • Automation (e.g. Klaviyo, Synerise, HubSpot) and A/B tests are done with partners, under my supervision
    • I help recruit and assess your team. On large projects where another agency is involved, I review its work and coordinate it with everything else

    When does a fractional CMO make sense?

    Most of my engagements start when a company is in one of these situations. If you only need someone to run a single campaign, a specialist or an agency will be a better fit.

    Campaigns run, sales don't move

    Reports look good and leads keep coming, but revenue stays flat. I connect campaigns, CRM and sales into one process and look at margin, not clicks.

    Several vendors, nobody owns the result

    An agency, a freelancer, a software house. Each reports its own metrics, but nobody looks after the overall result. I take that on.

    You need a senior marketer, but not full-time

    Marketing gets done after hours, or a junior runs it with no one senior to guide them. A full-time senior head of marketing is a big cost, and I come in at whatever scope you need.

    You're growing without investors

    You're self-funded, so every euro you spend on marketing has to pay for itself. I start with the channels that pay back fastest and grow the budget together with revenue.

    You're entering a new market

    You want to enter Poland or another country and test the market with a pilot first. I prepare a go-to-market plan, run the pilot and measure whether the model works before you spend a big budget. That's how my work with heycar started. More on entering the Polish market.

    Funding round, investor or exit

    Investors and buyers will ask about CAC, LTV and a repeatable acquisition channel, and after the round they'll ask about results every month. I prepare the numbers for those talks and for due diligence, and then help deliver the growth in the business plan.

    How much does a fractional CMO cost?

    Prices exclude VAT. I invoice in EUR on a simple B2B contract (reverse-charge VAT for EU companies), and we agree the exact scope after a free consultation.

    Start
    from €1,250

    per month, excl. VAT

    A good start when you want to get marketing in order and focus on what matters most.

    • I run an audit and plan the next quarter
    • We focus on 2-3 priorities, e.g. one channel or the sales funnel
    • Ongoing advisory
    • We meet every 2 weeks
    Campaign management
    from €2,500

    per month, excl. VAT

    When you want your campaigns run by someone who looks at margin and sales, not clicks.

    • Everything in Start
    • I set KPIs around margin, not clicks
    • I run campaigns myself in 1-2 channels, e.g. Google and Meta
    • I advise on budget, offer and sales funnel decisions
    • We meet every week
    For companies with a team
    Growth
    from €3,500

    per month, excl. VAT

    When you have a team or partners, but nobody to organize their work and own the result.

    • Everything in Campaign management
    • I coordinate your team's work and oversee partners
    • I set the plan and budget for the quarter and keep an eye on KPIs and margin
    • I run the most important campaigns across channels myself
    • I advise on decisions about your offer, pricing and channels
    • Every month I prepare a report for leadership
    Full scope
    from €6,000

    per month, excl. VAT

    When you want one person to own marketing and need a head of marketing without a full-time hire.

    • Everything in Growth
    • I take full responsibility for marketing, like a CMO
    • I build a complete marketing and e-commerce strategy
    • I manage the budget and campaigns across many channels
    • I manage and build the team, including recruitment

    Which package fits your company?

    A rough guide. We agree the exact scope in a free consultation.

    StartStart
    Campaign managementCampaigns
    GrowthGrowth
    Full scopeFull
    Startupfirst product, small budget
    Small or midsize businessstable business, often without a marketing team
    Growth-stage companyfast growth, often investor-backed
    Entering a new marketa pilot in Poland or abroad
    Large companyin-house team and agencies
    most oftensometimes

    A package is a price for scope and continuity, not for hours. If in a given month we clearly go beyond the scope and you don’t want to upgrade, I bill the extra work at €50 per hour, excl. VAT. One-time projects are priced separately: an audit with priorities from €1,250 and a complete strategy from €6,000, excl. VAT. You pay 50% upfront and 50% on delivery.

    Ongoing work is paid in advance, month by month. You pay the ad budget directly to the platforms, and I only invoice my own work.

    Fractional CMO, interim manager, agency or full-time hire?

    Fractional CMOInterim managerAgencyFull-time CMO
    ModelOngoing work, scope matched to your company’s stageA fixed-term role inside your organizationTasks within an agreed scopeFull-time employee
    Responsible forStrategy and results of all marketingContinuity and running the team during a transitionExecuting the agreed work in its own channelsStrategy, team and results
    StartAfter a consultation and a quoteAfter a consultation and a quoteAfter a brief, a pitch and a proposalAfter a hiring process that takes months
    Works best whenYou need a senior marketer, but not full-timeSomeone has left or the company is going through changeYou already have a strategy and someone to manage itMarketing needs day-to-day leadership of a large team
    Fractional CMO
    ModelOngoing work, scope matched to your company’s stage
    Works best whenYou need a senior marketer, but not full-time
    Interim manager
    ModelA fixed-term role inside your organization
    Works best whenSomeone has left or the company is going through change
    Agency
    ModelTasks within an agreed scope
    Works best whenYou already have a strategy and someone to manage it
    Full-time CMO
    ModelFull-time employee
    Works best whenMarketing needs day-to-day leadership of a large team

    I work in both models. I describe interim work for online stores on the Interim E-commerce Manager page.

    How we start and how we work

    01

    Free consultation

    Send me a message and we'll talk online, or over coffee if you're in Warsaw. We'll discuss your challenges, priorities and budget.

    02

    Proposal

    I'll send you a simple proposal with pricing and scope, along with a short contract template and an NDA.
    03

    Kickoff

    At the kickoff meeting we set up access, materials and one decision-maker on your side. After about 2 weeks I deliver the audit and the plan: goals, KPIs, channels and media plan.

    04

    Regular cadence

    We meet every week (every 2 weeks in Start). You get a report every month, and every 2-3 months we review the plan together.

    Working cadence

    WhatHow oftenWhat you get
    Online meetingWeekly, every 2 weeks in StartI show what I’ve done and what the results are. We agree the plan for the coming weeks and the decisions on your side
    ReportMonthlyKPIs against targets, test learnings and next month’s plan. I measure results with your sales data and GA4, not the ad platforms’ dashboards
    Plan reviewEvery 2-3 monthsI adjust the plan based on the data. After the first 3 months we decide together which package makes sense going forward
    Communication and decisionsOngoingOne email thread with the decision-maker. I write briefs for partners and sign off on their work
    New campaigns and testsAfter about 1, 2 and 4 weeksAfter a week I check tracking, after two I share the first learnings, and after four we decide together on channels and budget

    About me

    Jędrzej Zarychta, Fractional CMO
    12+years of experience
    150+projects
    delivered

    I’m Jędrzej Zarychta, and for more than 12 years I’ve worked where marketing, business and technology meet. At the KERRIS agency I built the digital marketing department from scratch and ran it, responsible for client budgets, the department’s results and the team. At Hemp Juice I went from external advisor to co-owner, and then to selling 100% of the shares to a Swedish corporation.

    As a Fractional CMO, Interim Growth Manager and Interim E-commerce Manager I’ve worked with companies including Holi Health, Tutlo, Natu.Care, heycar Group and ESTYL.pl. I studied e-business at SGH Warsaw School of Economics, and management and sociology at Kozminski University.

    I keep learning, with CXL courses and Google’s Internetowe Rewolucje program behind me. I use AI fluently to improve work and processes, and I also know when it’s better not to.

    How I work

    • I’m your single point of contact and take responsibility for the whole project, including the partners’ work
    • I advise, and when needed, I advise against
    • I base decisions on numbers: CAC, ROAS, LTV and margin
    • I work remotely with clients across Europe and the US, and on-site or hybrid in Warsaw (CET), in English or Polish
    • Invoices in EUR (reverse-charge VAT for EU companies), a simple B2B contract in English, NDA at the quote stage

    What clients say

    In just a few months we saw a steady flow of B2B sales leads

    Working with Jędrzej on B2B marketing translated into a strong flow of sales leads within just a few months. Jędrzej not only developed the right marketing strategy, but also connected it with our sales strategy and then launched ad campaigns in Google, Meta and LinkedIn Ads. At GRANTS.CAPITAL we were looking for a Head of Marketing, but working part-time with Jędrzej has been far more effective than many full-time hires or agencies we have worked with.

    Wojciech Bączyk photo
    Wojciech Bączyk
    Managing Partner, GRANTS CAPITAL · translated from Polish
    Jędrzej is an excellent fit for anyone looking for someone who combines strategic thinking and willingness to execute fast

    I worked with Jędrzej on Holi from the very beginning and he helped us tremendously to gain early traction and understand what need to be done in the Growth area. Jędrzej is very knowledgeable in his field, but was always willing to expand his knowledge in our domain to get the job done. He's an excellent fit for anyone looking for someone who combines strategic thinking and planning with the ability and willingness to execute fast.

    Paweł Seweryn photo
    Paweł Seweryn
    Co-Founder, Holi Health
    Jędrzej helped me open new affiliate channels and improve Meta and Google Ads, remarketing and analytics accuracy
    I had the opportunity to work with Jędrzej as Growth Manager for the Natu.Care brand, where he helped me in several key areas: launching new affiliate channels, improving the performance of paid Meta and Google channels, and improving remarketing and analytics accuracy. Jędrzej showed great energy and was proactive in taking new initiatives from concept to execution, efficiently and in line with the strategy. I recommend Jędrzej to any brand, from early stage to scale.
    Michał Abram photo
    Michał Abram
    CEO, Natu.Care · translated from Polish
    Jędrzej is a top-class expert in digital marketing and marketing strategy

    We worked on a long-term, complex B2B performance campaign where, on the agency side, he helped us choose the most effective solutions for our industry and hit our goals and demanding KPIs, with full commitment and the highest professionalism. 😉 The marketing activities and solutions he proposed were always carefully thought through, matched to our business, properly quantified and then delivered on time. As a result, making decisions and assessing the results of our cooperation was much easier and truly satisfying.

    Żaneta Sharma photo
    Żaneta Sharma
    EMEA Marketing Manager, Siemens Digital Industries Software · translated from Polish
    Never hesitates to challenge the status quo

    As a passionate individual who is interested in growth, Jedrzej brings a passion for it - as well as his personal experience and knowledge - to the game. It is evident that he is a very active and energetic person who constantly contributes new ideas and contributions to the team as well as to the projects and never hesitates to challenge the status quo when necessary.

    In my personal experience, I enjoyed his cheerfulness, positivism, and sense of fellowship.

    Yishai Fried photo
    Yishai Fried
    Senior Growth Marketer, heycar Group
    High commitment, a constant drive to grow and an understanding of business goals

    KERRIS could not have grown so fast or built so many performance marketing capabilities without you on board. High commitment, a constant drive to grow and an understanding of business goals are just a few of the qualities I always valued in our work together. We keep our fingers crossed for your next steps, and if you ever want to come back to agency life, the door is always open 🙂

    Mikołaj Szymański photo
    Mikołaj Szymański
    Co-owner, KERRIS · translated from Polish
    To the point, professional, full of ideas, always on time

    I don't like long speeches, so I'll keep it short. To the point, professional, full of ideas, always on time, always relaxed, always easy to work with and always understanding. Never generic, never rushed and never without keeping the client in the loop.

    Marcin Owsiany photo
    Marcin Owsiany
    Marketing Campaign Manager, Head of CORA CENTER OF EXCELLENCE, SWISS KRONO · translated from Polish
    I'm sure every client will be well "looked after"

    Together with Jędrzej and KERRIS we started our digital marketing journey, which continues to this day. Always open to the client's needs and proactive in proposing solutions. I'm sure every client will be well "looked after". Highly recommended!

    Marek Bubieńko photo
    Marek Bubieńko
    Marketing Director South East Europe, Valeo · translated from Polish
    Jędrzej is good at understanding what the client needs

    We worked with Jędrzej for almost 2 years. In that time he proved to be a very understanding and flexible partner. Real professionalism, courtesy and a knack for understanding the client's needs are what set Jędrzej apart!

    Wiktor Wojtkowski photo
    Wiktor Wojtkowski
    Head of Affiliate Marketing, Meczyki.pl · translated from Polish

    Fractional CMO: frequently asked questions

    Working together

    What is a fractional CMO?

    An experienced head of marketing who works for a company within an agreed scope rather than full-time. They're responsible for marketing strategy, budget and results as if they were part of the leadership team, and measure the work by revenue and margin.

    Is a fractional CMO the same as a head of marketing or head of growth?

    The scope is similar, the model is different. A head of marketing or head of growth is usually a full-time employee. As a fractional CMO I take on that role within an agreed scope, without a full-time contract and without months of hiring.

    How is a fractional CMO different from a marketing agency?

    An agency delivers commissioned work in its own channels and reports its own metrics. I work as an extension of your team: I'm responsible for all of marketing, set priorities and budget, run campaigns myself and hold partners accountable for business results.

    Do you implement, or only advise?

    Both. I set up and run campaigns in Google, Meta, LinkedIn and TikTok myself. I set up analytics in GA4 and Google Tag Manager myself at a basic level, including e-commerce, and hand more complex implementations to partners. Creative, SEO, automation and IT are done with trusted partners whom I coordinate and take responsibility for. You get one point of contact instead of several vendors.

    What kind of companies do you work with?

    Online stores, B2C companies selling services and subscriptions online, and B2B companies, including wholesalers and service businesses. I also work with startups building their first sales. I know industries such as beauty, food, health, fashion, automotive, education and software.

    Do you work with companies outside Poland?

    Yes. I work remotely with companies across Europe and the US, in English, and I'm based in Warsaw (CET). I've run campaigns in markets including Poland, Germany, France, Spain, the UK, Italy, Hungary, the Czech Republic, Slovakia and the US.

    Where should I start if my budget is limited?

    With the Start package. I then focus on 2-3 priorities that will have the fastest impact on results, e.g. a campaign audit and a plan for the next quarter. Once results come in, we expand the scope.

    Will you help me hire a permanent head of marketing?

    Yes. I can design the team structure and job descriptions, run the interviews and onboard the new person.

    When is a fractional CMO no longer enough?

    When marketing needs day-to-day leadership of a larger team. I then help you move to a full-time model and hand over a working system to my successor.

    Pricing and contract

    How much does a fractional CMO cost?

    I offer ongoing work in four packages: Start from €1,250, Campaign management from €2,500, Growth from €3,500 and Full scope from €6,000 per month, excl. VAT. Work clearly beyond the package scope is billed at €50 per hour, excl. VAT.

    Does the package price include the ad budget?

    No. You pay the ad budget directly to the platforms, e.g. Google, Meta or LinkedIn. I only invoice my own work.

    Is analytics setup included in the package?

    I do the basic analytics setup (GA4, Google Tag Manager, pixels) myself, including e-commerce, and price it separately. More complex implementations go to trusted partners.

    How long is the contract?

    The first engagement lasts at least 3 months. After that, we decide together whether to stay with the same package.

    Do you offer one-time consultations?

    No, I don't do one-time consultations. The smallest engagement is the Start package, and one-time projects are priced separately: an audit with priorities from €1,250 and a complete strategy from €6,000, excl. VAT.

    What kind of contract do you use?

    A simple B2B contract in English. I invoice in EUR, and EU companies get a reverse-charge VAT invoice. If you need an NDA, we can sign it at the quote stage.

    Still not sure?

    My business grows through referrals

    Your satisfaction is the foundation of my business. Thank you for every referral!

    Working with me is simple

    I'm easy to reach and easy to work with: a simple B2B contract and invoices in EUR.

    I implement, not just advise

    I run strategy and campaigns myself, and handle the rest with trusted partners I take responsibility for. My hands-on work is backed by education and certifications:

    SGH Warsaw School of EconomicsKozminski UniversityIE Business SchoolCXLGoogle PartnerShopify Partner
    Jędrzej Zarychta
    I manage budgets
    from €2k to €250k
    a month
    I work with e-commerce,
    online and offline
    businesses and agencies

    Book a free consultation

    In a free consultation we’ll check whether I can help and to what extent. If I can, I’ll send you a simple proposal with scope and pricing.

      By sending this form, you accept the Privacy Policy. I will use your details to reply to your inquiry.


      I usually reply within a few business hours