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 💌

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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!

Growth Panel

Chief Executive Officer

Inner Health UK

Most recently as Digital Marketing Executive, I provisioned executive leadership over digital marketing strategy, including social media, CRM, SEO, market analysis, and stakeholder engagement. I initiated and further re-inforced long-lasting and conducive client relationships. In doing so, I also acquired technical expertise in Canva, Facebook, Wix, and Google Analytics. Moreover, I interacted with a broad range of partners and stakeholders to assure marketing strategy aligns to corporate vision, in support of long-term goals and objectives. In furtherance of these aims, I demonstrated a strength to lead to quality-driven teams operating in a customer-centric and matrix-driven environment with an emphasis on increasing ROI. Selected achievements, included:
✯ Created a booking system to improve overall SEO initiatives and further expand consumer base.
✯ Utilised SMART targets to consistently reach and exceed key performance indicators.
✯ Architected cutting-edge digital media through utilising Wix to scale engaging web sites.
✯ Played a pivotal role in guiding social media strategy to modernise organisational marketing position.

Head Of Marketing

Floverse

Head of Growth

CMT Group 

My objective was to initiate and reinforce long-lasting customer relationships through high-level blogs, email marketing, and social media. Additionally, I oversaw the planning and early implementation of an ongoing SEO project, providing an on-site and off-site SEO base. Interacting with a broad range of partners and stakeholders, I was a crucial figure in aligning the corporate vision with the marketing strategies. 

 📈  Responsible for handling £15,500 monthly budget. Outsourcing overseas talent to help the business drive more traffic, increase leads and generate more profit. 


✅ Increased digital revenue by 38% (YOY)
✅ £37,000 earned through email marketing in a single month (January 2021)
✅ Implemented weekly marketing reporting
✅ Grew internal marketing team from 2 employees to 9 employees
✅ Migrated 5% of existing cash customers to online customers
✅ Increased SERP visibility - additional 30 keywords visible on page 1 of SERP

Marketing Manager

Currently supporting with the digital transformation project at CMT Group. I provide content for websites, optimise websites for consumer and SEO, and support the marketing team with CMT's future digital strategy.

Digital Marketing Executive

Micheal Spiers

In this role, I collaborated with sales and marketing teams to deliver innovative and robust promotional strategies. I showcased an aptitude in creative branding to generate leads, drive impressions, and improve overall visibility in competitive markets. A key accomplishment, included:
✯ Procured a 15% increase in sales, matched by industry-leading customer relationship management

Sales Marketing Executive

Tesco

At Tesco, I promoted superior service delivery resulting in establishing a reputation as a consistent top-performer committed to enhancing customer experience. I also demonstrated strong cross-functional ability, bolstering operational excellence across multiple departments. In addition, I steered product placement and merchandising tactics to drive efficiency and revenue. As a result, I was integral in positively impacting overall team performance.

Customer Assistant

I help businesses in the UK reduce their energy expenses while hitting ESG & Net-Zero targets. 

If you want me to look over your energy usage, and see what solutions we can bring forward, then book a meeting with me here >>https://app.lemcal.com/@harry-haines

taplio

The Battle

Lena Sesardic

Harry Haines

Followers

Posts

Engagements

Likes

Ready to grow your LinkedIn presence?