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!

Tim Flood

T-Mobile

As lead digital product manager for a $6B portfolio serving 30M customers and 60M app users, I drive initiatives that fuel growth, elevate customer experience, and enable operational excellence.

•	Launched device diagnostics within T-Life, creating a digital sales channel projected to generate $40M over three years
•	Led a company-wide initiative to shift communications to paperless channels, saving an estimated $4M+ annually
•	Revamped the digital claims experience, improving CSAT, NPS, customer retention, and reducing churn
•	Developed and presented business cases securing VP approval for strategic innovation initiatives
•	Selected as Corporate Strategy Fellow, delivering research-backed growth strategies for T-Mobile for Business
•	Spearheaded the development of an internal project management platform to drive productivity and enhance executive reporting
•	Partner cross-functionally across engineering, legal, cybersecurity, and privacy teams to deliver secure, customer-first products

Key Skills: Agile software development, Product Design (Figma), Customer Insights (Adobe Analytics), Executive Storytelling (PowerPoint), Operational Reporting (Power BI), Project Management (Adobe Workfront)

Senior Product Manager

•	Led a 200%+ increase in user adoption of Adobe Workfront for the T-Mobile Media team with customer-driven features, tailored training & documentation, and ongoing optimizations
•	Conduct extensive requirements gathering and create documentation to translate customer needs into actionable developer inputs.
•	Lead the revamp of the company-wide implementation survey to ensure customer satisfaction and successful software deployment
•	Collaborate with analytics team to develop reporting dashboards for executives, managers, and end users including ROI and Capacity planning
•	Team leader for product & team strategy, candidate screening, and training & development roadmaps

Product Manager

DIRECTV

•	Led the consolidation and modernization for digital account management and bill pay
•	Directed Usability testing, documentation, and redevelopment for digital customer experiences
•	Led the migration of 4M users to a new account management platform with a seamless transition and minimal impact on customer churn and customer service volume
•	Defined roadmaps and built business cases for a team of 5 Product Managers to capitalize on their strengths and deliver expected outcomes to senior management
•	Developed and prioritized an integrated roadmap of products and experiences with an annual budget of $9M including digital CX, billing, onboarding, retention, and personalization.
•	Led executive reporting for the org, made staffing recommendations, and represented my SVP in various capacities

Sr Product Manager

Johnson Controls

•	Spearheaded a product pivot that resulted in 1100% YoY revenue growth for OpenBlue Location Manager
•	Conducted extensive Market Research, conducted and summarized global Voice-of-Customer survey
•	Built a Business Case to Influence Senior Leadership and worked with Engineering on Roadmap Prioritization
•	Redesigned marketing assets including web pages, brochures, videos, and presentations
•	Developed Award-Winning Digital Solutions Sales Training Program
•	Redesigned pricing business process to provide sales and customers pricing in days rather than weeks
•	While embedded at Microsoft, Delivered > 100 Executive Briefings with a rating of 8.57/9 (top 10%)

Microsoft (Unify Consulting)

•	Client: Microsoft
•	Project: Microsoft Global Engagement Programs: Global Reporting Transformation
•	Led the transformation of worldwide reporting for Microsoft Global Engagement Programs
•	Enabled real-time, self-service analytics with a series of Power BI dashboards
•	Consolidated data from disparate data sources catered to stakeholder requirements
•	Leveraged Power BI, Excel, PowerPoint, and SharePoint

•	Client: Microsoft
•	Project: Microsoft Global Engagement Programs: Marketing Influence Model Creation
•	Led cross-functional team in business process design to align the messaging and influence of Marketing with Sales
•	Leveraged data from disparate data sources to perform data mining, enrichment, and analysis
•	Created and presented a proof of concept through data mining, enrichment, analysis, visualization creation and story telling
•	Discovered and documented gaps and blockers to data accuracy and process automation
•	Delivered specific recommendations to address gaps in data collection, accuracy, tagging, and process design
•	Provided data-driven answers to questions from various stakeholders and colleagues
•	Leveraged SQL, Power BI, Excel, PowerPoint, and SharePoint

•	Client: Microsoft
•	Project: Windows Gaming
•	Led regular stakeholder reporting of KPI, trends, and insights to leadership team
•	Performed special research and analysis for ad-hoc reporting including game launches, promotions, and pricing strategy
•	Leveraged data from disparate data sources to perform data mining, enrichment and analysis
•	Improved reporting process design to improve timing and accuracy of reporting
•	Leveraged Cosmos, WSI, Power BI, Excel, PowerPoint, and SharePoint

Senior Consultant / Program Manager

Rosetta Stone

•	Lead monthly stakeholder presentation development for the top 5 products in the organization
•	Collaborate with stakeholders to understand business drivers and translate those into actionable KPI and insights
•	Produce recurring product dashboards and reports used by product owners and C-Suite to make better business decisions
•	Conduct ad-hoc analysis for product owners, product strategy team, and digital marketing team
•	Integrate data from disparate sources involving mobile application adoption, customer engagement, and digital marketing ROI
•	Create visualizations and presentations that distill data, highlight insights, and answer key stakeholder questions
•	Led a team in developing a working prototype of an innovative language learning application I conceived of
•	Led a team of Analysts in producing regular C-Suite presentations for company’s flagship product
•	Created an ETL Script that automated a process that previously took 2 days to complete
 
Tools Used:
•	SQL
•	Excel 
•	Tableau
•	Google Analytics
•	PowerPoint
•	Adobe Analytics
•	Pentaho
•	Distimo
•	MixPanel
•	Responsys
•	Exact Target
•	Convertro

Business Analyst

Syntasa

•	Led the west coast growth of a startup up digital analytics consulting firm
•	Provided Analytics consulting to blue chip clients including Microsoft’s Integrated Marketing Platform (IMP)  and JPMorgan Chase’s Voice of the Customer  
•	Acted as team leader of onsite analytics staff
•	Provided system architecture and staffing guidance, and acted as project manager for system upgrade of world’s largest Omniture Insight deployment
•	Acted as west coast brand ambassador, chief marketer, recruiter, and presenter
•	Created and managed e-mail marketing campaigns to drive awareness, webinar attendance and new business development

Syntasa helps organizations leverage data to make better business decisions.  The exponential growth of digital data, including website, mobile, and social, is creating opportunities for organizations to meet customer desires and expectations like never before.  Syntasa offers technology agnostic analytics consulting and staffing services proven to move the meter on your specific KPI.  Syntasa can help you turn both structured and unstructured data into actionable insights.

Account Director, Digital Analytics Consulting

Microsoft

Q4 MVP Award Winner
Sales Excellence Award Winner

Responsibilities:

•	Lead a virtual team in securing new business and expanding existing relationships with annual Microsoft Premier Services agreements
•	Collaborate in developing and implementing a technology roadmap designed to deliver positive ROI
•	Develop and strengthen executive level relationships to gain understanding of customer IT priorities and initiatives
•	Align customer priorities, problems, and opportunities for improvement with specific services and outcomes available through Microsoft Premier Services
•	Create and deliver compelling sales presentations, proposals, and documentation to influence decision makers
•	Maintain ongoing relationships to ensure desired outcomes are met and ensure the customer is completely satisfied

Account Manager, Premier Services

Qualified Renter, Inc.

•	Conceived of and developed innovative cloud based start up
•	Created and updated original Web Portal
•	Self-Financed and managed all Profit & Loss Responsibilities
•	Determined scope, quality, schedule, budget, resources and risks of new business venture 
•	Managed relationships with web developer, credit bureau API, CRM, CMS, payment vendor, facilities

Founder & CEO

IKON Office Solutions

•	Analyzed and improved customer business processes, monthly forecasting, reporting, and ROI tracking
•	Managed complex implementation projects of hardware and software technology
•	MAE of the Month July 2009,  Regional MAE Demo Certification Champion 2010

Major Account Executive

I’m a Senior Product Manager at T-Mobile, leading digital innovation for a $6B product portfolio serving 30M customers and 60M app users. I build and scale customer-centric solutions that drive revenue growth, improve operational efficiency, and transform the digital experience.

Recently, I launched a new device diagnostics feature within T-Life, creating a digital sales channel projected to generate $40M in incremental revenue. I also led a major shift to paperless communications projected to save $4M+ annually, revamped the digital claims experience to improve CSAT, NPS, and retention, and built an internal platform to streamline project management and executive reporting.

Selected as a Corporate Strategy Fellow for T-Mobile for Business, I conducted deep market research and business casing to drive strategic growth initiatives, strengthening my executive communication and financial modeling skills.

I thrive at the intersection of product innovation, operational excellence, and strategic planning — delivering real results that scale.

Specialties: Product Strategy | Business Case Development | Agile Software Development | Customer Experience | GTM Strategy | Digital Transformation | Figma | Adobe Analytics | Power BI | Executive Communications

Apart from work, my favorite people call me “dad.”  I enjoy staying physically active and volunteering with youth sports and events along with community activities.  

I'm always looking to learn and grow, so feel free to reach out and connect with me.

•	Lead product development strategy & roadmap prioritization for $5B+ product
•	Develop innovative products, features, and channels to improve take rate, churn, revenue, and customer satisfaction
•	Build business cases to evaluate impact of new features and products
•	Create & manage team confluence page to improve governance, collaboration and enable self-serve executive reporting
•	Prepare and lead quarterly executive briefings
•	Generate product documentation and oversee UX design for web and mobile applications used by >30M users

taplio

The Battle

Lena Sesardic

Tim Flood

Followers

Posts

Engagements

Likes

Ready to grow your LinkedIn presence?