Jakub Zajicek

Chief Marketing Officer

JZ Consulting

Helping B2B brands and individuals become more visible and get more clients using LinkedIn. 70% of my clients hire me to help them with content (mostly video), 20% with ads, and 10% with outreach.

Founder

Demandi.co

At Demandi, I helped over 300 B2B founders, execs, and teams create nearly 2,000 videos — from individuals just starting out to people inside publicly traded companies.

I built the MVP, led operations, and was responsible for revenue and pipeline generation. I designed and ran our entire content production system — from idea capture to final delivery — working closely with video editors, automations, and AI tools.

I developed complex AI prompting workflows to turn raw voice notes and videos into high-converting LinkedIn content, and continuously refined our go-to-market strategy through direct experimentation — mostly on LinkedIn.

From product to pipeline, I helped turn Demandi into a repeatable system for scaling thought leadership with speed and clarity.

Co-Founder & COO

Speak On Podcasts

ACQUIRED IN DECEMBER 2022 BY CHAPMAN CAPITAL: Over 3,500 podcast interviews booked with top B2B brands like Gong, Paddle, Genesys, and more. Speak On Podcasts quickly became one of the leading podcast booking agencies in the game.

I stayed on for 12 months post-acquisition, working directly with our clients to ensure everything ran smoothly and our systems kept delivering results.

ACQUIRED AGAIN IN APRIL 2025 BY FAME: After the second acquisition, Speak On Podcasts was fully integrated into Fame as a "Fame Connect".

Co-Founder

PitchGround

Pitchground is a community-first platform for launching and growing Saas companies. We believe in growing sustainable businesses through practical education and providing a ton of value. 

I'm responsible for the overall marketing strategy, lead generation, content marketing (including weekly video shootings), leading team of juniors, and more fun stuff!

Wanna network with entrepreneurs, founders, and marketers? Join our official FB group!
https://www.facebook.com/groups/pitchground/

Back in March 2020, I co-founded Speak On Podcasts with a partner from the UK. We grew it into one of the world’s leading agencies for booking podcast interviews, securing over 2,500 appearances for more than 125 leaders from top B2B brands like Canva, Gong, Paddle, and Toggl.

In December 2022, Chapman Capital acquired the agency (source). I stayed on for over a year to ensure a smooth transition and maintain high service quality for our clients. In April 2025, the business was acquired again — this time by UK company Fame (source), which integrated the agency and team into its portfolio under the name “Fame Connect.”

In 2024, I co-founded Demandi.co with a partner from the US. As COO, I helped over 300 B2B professionals create nearly 2,000 short LinkedIn videos. I built the MVP, ran operations, and drove revenue and pipeline growth. I stepped away voluntarily due to a difference in vision with my co-founder.

LinkedIn has been a key acquisition channel in both businesses. I’ve tested it all — posting daily for 188 days straight, reaching out to 50+ people a day, and most recently, running paid ads. All of it generated deals worth over $1M.

Today, I work independently, helping B2B brands and individuals become more visible and get more clients using LinkedIn. 70% of my clients hire me to help them with content (mostly video), 20% with ads, and 10% with outreach.

I live in the Czech Republic with my wife. I have type 1 diabetes. I run and work out. 🙂

Helping SaaS brands reach new partners with PartnerOutreach.io

Lena Sesardic

Etsy Store Owner & Artist

Baddie Women's Circle

A bi-weekly virtual circle for the women who are letting go of a life, relationship, career or version of themselves that “makes sense” on paper for something that’s unorthodox but feels fully aligned.

Founder & Facilitator

The Authentic Advantage

AI & ChatGPT Business Coach

Tulum Girlies Group 👯‍♀️

Founder, Community Manager & In-Person Events Host

TikTok

I create funny & educational TikTok videos about the "casual" side of LinkedIn (handle: @contently_lena.)

My TikTok wins:
- Went from 0 to 100k likes and 13k followers in 14 days
- 15M+ views to date on TikTok
-50+ viral videos
-2000+ downloads of my free LinkedIn Profile Scorecard in 2 months from TikTok
- Collaboration with LinkedIn Marketing Partner, Transmission agency


Want me to create an engaging TikTok video for your brand? Email me at hello[at]lenasesardic[dot]com. 💌

Content Creator & Influencer

GrowthMentor

I'm a GrowthMentor helping product managers, marketers & founders with product management, content marketing, LinkedIn marketing, customer discovery & idea validation.

𝗖𝗵𝗲𝗰𝗸 𝗼𝘂𝘁 𝗺𝘆 𝗚𝗿𝗼𝘄𝘁𝗵𝗠𝗲𝗻𝘁𝗼𝗿 𝗽𝗿𝗼𝗳𝗶𝗹𝗲 & 𝗯𝗼𝗼𝗸 𝗮 𝗳𝗿𝗲𝗲 𝗰𝗮𝗹𝗹 𝘄𝗶𝘁𝗵 𝗺𝗲 𝗶𝗳 𝘆𝗼𝘂 𝘁𝗵𝗶𝗻𝗸 𝗜 𝗰𝗮𝗻 𝗯𝗲 𝗵𝗲𝗹𝗽𝗳𝘂𝗹. 💜

Growth Mentor

Medium

I contribute my writing on lenasesardic.com to two Medium publications:

Start it Up - the largest Medium publication in the world
Product Coalition - the largest Medium publication for product management

I'm also part of the Medium Partner Program.

Contributing Writer

Aviso Wealth

Managing the new NEI Investments website to make sure all content is up-to-date, on brand, and driving key metrics.

Using my PM mindset to run experiments and find new growth opportunities for the new website.

Senior Content Publisher

Product Owner

Transparent Media Studio

Product management can be a little nebulous if you've never been a PM before. Which is why tech companies hire a PM veteran like me to help them write about the craft in a credible way that converts leads to clients.

With 4+ years experience in the industry, I know the PM principles & concepts like the back of my hand and am familiar with the key thought leaders and schools of thought in the space.

You can hire me to do the following:

◆ SEO-optimized blog posts
◆ Newsletters
◆ Emails
◆ Ebooks
◆ Social media posts
◆ White papers

I also offer ghostwriting services for executives in the PM space.

If you want to work with me, send me an email at hello@lenasesardic.com 💌

--

My clients have included companies like Userpilot.com and Arc.dev. You can check out my writing samples attached here.

Freelance Writer / Ghostwriter

-Mentored/advised venture teams in idea validation, customer discovery and mindset.
-Mentored/advised aspiring product managers in how to break into product management.
-Collaborated with individuals & teams on various startup-related projects or side projects.

Mentor, Advisor & Collaborator

Be your unapologetic self & create epic LinkedIn content that converts 😈 //They call me "the LinkedIn Therapist"

Ready to build your Second Brain? 🧠

The Second Brain Project is a 4-week live cohort to help coaches, creatives, and business owners build a high-functioning network of GPTs that automate their workflows, multiply their time & use AI the way it was meant to be used: as your second brain.

By the end of the 4 weeks, you’ll walk away with:
✅ 5–15 GPTs that think like you
✅ A plug-and-play GPT Playground to use instantly
✅ Systems that actually run without your brain being the bottleneck
✅ Confidence to keep building GPTs that save time, increase capacity, and sound just like you


📌 WHAT'S INCLUDED:

- 4 x live weekly trainings (with replays)
- GPT Builder Pro (your personal GPT-building assistant)
- Playground of plug-and-play GPTs (e.g. Sales Call Decoder, Content Sculptor)
- My 6-Step GPT Your Brain Method
- Second Brain Architecture Template (Google Sheet + Notion)
- Bonus GPT Naming Guide

⏰ FAST PASS BONUS:
If you sign up within 48 hours (by Thursday at 10am PT / 1pm ET / 7pm CEST), you’ll also get:

🔓 Early Access to the GPT Library (April 28)
📞 Bonus Live Q&A Call with Me (May 6)


You're already paying $20/month for ChatGPT Plus, but you're using 5% of what it's actually capable of.

This isn’t just about ChatGPT. This is about you building a real system that:

- Thinks like you
- Speaks in your voice
- Handles work you don’t want to do

A system that scales your business & gives you your brain back.

Join The Second Brain Project: https://natural-temple-f15.notion.site/The-Second-Brain-Project-1d9921c15bdc80d09cb8ef9e0607f1fa?pvs=4

Founder & LinkedIn "Baddie" Business Coach 😈

I can help you confidently sell your 4- or 5- figure offers on LinkedIn and get high-calibre clients so you can generate more revenue for your biz, raise your prices and work less!

I’ve been in Albania the past 3 weeks and here’s what I’ve been up to:

(I left Valencia to explore other cities I may want to live in Europe since my business is 100% remote.)

1. Living in a cash society.

Albania is 90% cash which has made my weekly money ritual where I pull my expenses a nightmare.

I’ve been logging my expenses in the Tricount app to track my expenses accurately.

2. Building out N8N automations.

I’m taking 1-2hrs every day to build out new automations for my business so I can teach my clients to do the same.

This week I ran a temporary Cloudflare tunnel to authenticate Slack with my local N8N instance which was totally new to me (but free.)

3. Running by the beach

I recently went through a medical procedure where I couldn’t work out for 1.5 months so I’m back to moving my body and there’s nothing better than running by the beach.

4. Tonnes of outreach

I’m done doing 100% inbound lead gen and have been doing proactive warm outreach to create more opportunities and it’s been working amazing.

Running a 100% remote business while travelling has been amazing but there’s been a lot of adjustments.

What have you been up to this past month that’s interesting to share? Would love to compare notes in the comments.


P.S. Things are super quiet in Durres, Albania because it’s more of a summer city but we’ve found a fun sheesha bar where 2 Albanian singers are about to come on.

🧠 Build a team of AI employees that think like you & scale as a founder without a big team. //Make AI the operator, you be the visionary 👑 //Ex-product manager in tech 👩‍💻

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Why I proposed using Gemini inside a recent AI pilot I designed for a company instead of building a shiny new AI tool.

A lot of AI consultants want to come into a company guns a’ blazing to build fancy new AI tools because more AI = more ROI, right?

Nope.

With this company, I heard the founder talk about a culture of resistance to AI inside the company. Specifically, a fear of AI taking their jobs.

I also heard him say that the latest procurement of an AI tool got delayed.

So I knew the easiest way to quickly bring in ROI was to train the team to use an AI tool they already were using in their daily workflows, just better.

There’s nothing worse than bloating your organization with more AI tools without first fully leveraging the tools you have at hand.

A Gemini Gem may not be as “fancy” and “impressive” as the latest AI tool on the market, but it’s the perfect way to get a quick ROI lift.

0 friction, 100% adoption.


By the way, if you're a founder, CEO, COO or CPO of a growing company that's looking to unlock revenue by solving for bottlenecks between your CS and/or Product teams, DM me and we can chat about designing a pilot together.

If you think that using AI in your sales means setting up full-blown automations that spam all your connections, let me give you a different perspective.

While yes, there is a lot of that going on LinkedIn (🙄), I want to show you how I use AI in my sales while maintaining a human-centred approach.

Basically, I still write all my outreach messages and DMs myself.

But I use AI as my operator in the background to help me have better conversations.

Here’s what that looked like for me last month:
→ 19 leads generated
→ 9 sales calls booked
→ 6 opportunities generated
→ 3 deals closed, 3 still in the pipeline
→ Every message still written by me

This is what I did behind the scenes with AI:
👉 Used AI to research prospects on LinkedIn to get ideas for potential angles for my outreach messages
👉 Analyzed DM convos to spot buyer intent and guide the convo naturally to a sales convo
👉 Reverse-engineered the posts driving inquiries + profile views to understood why they worked
👉 Prepped for sales calls by uploaded all context into AI + layered in frameworks like Never Split the Difference
👉 Broke down sales call transcripts after to craft sharper follow-ups and spot what I missed in real time

Zero automation I have no control over.
Zero fear that my messages didn't sound like me.
100% confidence I'm still selling as a real human being.

The part I love the most is how using AI as my co-pilot like this allows me to see my blind spots and become way better at sales way faster.

So many of you have been approaching me the past few weeks for help with generating business leads on LinkedIn using AI while maintaining a human-centred approach.

I'm going to be sharing something very soon where I'm not only going to teach you how to elegantly leveraging AI to get clients on LinkedIn (without losing the human touch), but I'm also going to guide you as you implement these strategies alongside other founders just like you.

I'm so excited, I can't wait to share more!

Nov 2024: running a scooter rental business in Tulum, Mexico.

Nov 2025: helping businesses solve revenue bottlenecks with AI systems.

Here's what I've learned about launching & pivoting businesses as a 7x entrepreneur (with lots of failures too.) 👇

1. Move as soon as you sense demand.

I've never waited to have the perfect branding or website to start a business. The moment I detect demand for a service, I take messy action and start serving clients right away.

2. Don't wait until you feel like you know everything.

You learn most things on the job and waiting until you're an "expert" just delays you from getting started.

Remember: there's always someone a few steps behind you and throwing yourself in the deep end is how you're forced to learn quickly.

(Plus, for my scooter rental business I could always ask ChatGPT which handle break controlled which tire so I was good. 🤭)

3. Know that you can always reinvent yourself.

There's nothing more painful than holding onto an old business or old identity. If you've built (or tried to build) a business before, you can totally do it again!

4. Different niches/business models... same foundations.

I thought operating an in-person physical business would be completely different. Like unrecognizably different.

But at the end of the day, it was the same mechanics (pun intended) in the back-end.

5. Pivots can take months to fully complete.

I used to think pivots were something you did in 1-2 months, but this year has taught me that it can take way longer for you to truly settle in your new zone of genius.

Entrepreneurship is such a humbling experience.

Have you launched or pivoted multiple new businesses in your time as an entrepreneur? What have you learned?

taplio

The Battle

Jakub Zajicek

Lena Sesardic

Followers

Posts

Engagements

Likes

Performance ScoreLena Sesardic's LinkedIn Performance

Ready to grow your LinkedIn presence?

taplio

The Battle

Jakub Zajicek

Lena Sesardic

Followers

Posts

Engagements

Likes

Performance Score.css-goub6s{font-size:var(--chakra-fontSizes-md);font-weight:500;color:var(--chakra-colors-gray-600);display:block;margin-top:var(--chakra-space-1);}Lena Sesardic's LinkedIn Performance

Ready to grow your LinkedIn presence?

Performance ScoreLena Sesardic's LinkedIn Performance