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!

Helen Lee Moon

I’m dedicated to helping you stop wasting your true potential and elevate from a mediocre “I’m fine” life to an outstanding, flourishing life.

Because I know how awesome life can be when we have clarity, vitality, and an empowering mindset!

🏅CERTIFICATIONS🏅
-Designing Your Certified Life Coach
-Certified Neuroencoding Elite Specialist
-National Board Certified Health & Wellness Coach

Mindset & Life Design Coach

Kettlebell Kitchen

Chief of Staff to the founder and co-CEOs of a Series B food startup company in NYC

Chief Of Staff

Gunter Seeger NY

Prepped, cooked, and plated all dishes side by side with Chef Gunter Seeger (renowned Chef with c.50 years of experience).

Member of a 5-person kitchen team at a market driven fine dining restaurant focused on daily changing tasting menu.

Chef de Partie (1 Michelin Star; Fine Dining)

Union Square Hospitality Group

Integral member of the four-person hot-line team, worked as the right hand of the fish roast ensuring all the accompaniments were prepped and cooked perfectly with the correct garnishes without delay.

Recognition: Selected by the Executive Chef to cook in Seoul, South Korea at a 250-cover Omega Watch-sponsored VIP gala to celebrate the 2018 Winter Olympics, as well as at an ultra VIP dinner for 50 guests (Nov. 2017).

Fish Entremetier at The Modern (2 Michelin Stars; Fine Dining)

Eleven Madison Park

Accountable for completing the daily prep list of the entire kitchen team.  Prepped core ingredients used for lunch and dinner services for both winter and spring menus; Fulfilled additional role of supporting sous chefs in various special projects.

Culinary Extern at EMP (3 Michelin Stars; Fine Dining)

Goldman Sachs

Provided business advisory and execution to the Partner & Global Head of Operations Engineering (1500 person organization; ~$450 million annual budget), and led the Chief of Staff team in the US.

Specific responsibilities in relation to achieving Operations Engineering’s business objectives included: Financial Planning and Analysis; Project Portfolio Management; Performance Management: Communication Strategy; Human Capital Strategy.

Selected by senior management to be the principal model on Goldman Sachs’ Careers website in 2014.

Vice President, Co-Chief of Staff – Operations Engineering Mgmt

Delivered the finance, planning and analysis function across the Technology Infrastructure group – prepared the largest annual budget across the division, set / managed global headcount targets, and forecasted monthly costs and accruals.

Partnered with key stakeholders at various levels (global head to budget managers) to ensure real-time and comprehensive understanding of the financial landscape

Optimized and automated the cost allocation model using advanced Excel and Access Database skills.

Associate, Engineering Division CFO Team

Bloomberg LP

Built and grew client relationships in a US Midwest sales team; Advised buy-side traders on trading process and workflow on the terminal.

Handpicked by management to conduct multiple training sessions for key clients (e.g., 1:1 onsite training sessions at hedge funds to teach advanced Bloomberg Terminal functions and group training classes for 30+ investment bankers).

Ranked top 2 overall performer in new analyst training class.

Bloomberg Tradebook Sales and Relationship Management & Analytics Analyst

Life Design Coach for those sick of settling for "fine" | Ex-Goldman Sachs VP & NYC Michelin cook turned Coach | Guiding you to wake up feeling purposeful & excited for clarity, presence, & success!

I became a Coach because I needed it first.
From 8 years at Goldman Sachs, to Michelin-trained chef, to a food startup role, I realized I had:

🔸 Disempowering Mindset: I kept sabotaging myself
🔸 Lack of Clarity: I didn’t know why I was pursuing these high-intensity roles
🔸 Depleted Energy: I lacked the health and vitality to sustain what I wanted to do

So I trained with top experts to coach myself first. Now, I share powerful, easy-to-implement tools with growth-driven leaders like you.

I’m dedicated to helping you stop wasting your true potential and elevate from a mediocre “I’m fine” life to an outstanding, flourishing life.

I’m not sharing this to boast, but because of my varied career and life experiences (and now being in my 40s!) allow me to relate to many types of people, understand your challenges, and truly guide you.

Because I know how awesome life can be when we have clarity, vitality, and an empowering mindset!

🏅CERTIFICATIONS🏅
-Designing Your Certified Life Coach
-Certified Neuroencoding Elite Specialist
-National Board Certified Health & Wellness Coach

taplio

The Battle

Lena Sesardic

Helen Lee Moon

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