Hi, I’m Juan · Demand generation marketer in Houston

I turn messy marketing questions into budget decisions a team can trust.

I plan digital ad budgets, check the reports that judge them, and help Sales find the leads worth a call.

Today I’m an Associate Demand Generation Manager at HMH. On the side I build things, and I show what didn’t work too.

Juan Tellez smiling in a navy jacket and glasses.
6+ yrs in marketing
$65K+ in monthly ad budgets managed
2 promotions at HMH since 2022
7-figure pipeline in my first year at EZLeads
At a glance

Marketing by day. Building on the side.

Six-plus years across agency and in-house teams: planning where the budget goes, checking whether the report is telling the truth, and handing Sales the leads worth a call.

What I do Full-funnel demand generation at HMH: paid media, email, and nurture programs for U.S. and international markets.
Results I’m proud of MQL-to-SQL conversion from 14% to 22% at HMH, and two promotions. A seven-figure pipeline in my first year at EZLeads. $65K+ a month and a team of four at PalmPons.
Tools I work in Google, Meta, LinkedIn, and Microsoft ads; GA4, Salesforce, Marketo, and Power BI.
What I build for fun A gaming clips channel, a blackjack card game, and research labs that test ideas with simulated money.
Career so far: EZLeads from March 2020 to October 2021, PalmPons from October 2021 to October 2022, and HMH from October 2022 to now.
  1. 2020–21EZLeadsDigital Marketing Specialist
  2. 2021–22PalmPonsPaid Media Team Lead
  3. Oct 2022–nowHMHAssociate Demand Generation Manager
What I build

Two marketing projects, three built for fun.

Some answer marketing questions; some are things I wanted to exist. Each one makes sense on its own.

See all five projects →

Marketing

Built for fun

Boulevard 21

A blackjack card game where every rule change is played thousands of times first.

See the game: Boulevard 21 →
Who I am

The work matters. So does the person doing it.

I’m from Houston, the oldest in my family and the first to go to college, and I learned early to figure things out without a perfect playbook. That habit stuck: when something doesn’t make sense, I take it apart until it does.

What I bring A strong sense of audience, and the patience to make complicated work understandable.
What I’m like to work with Quiet at first, direct once I understand the problem, and more interested in a useful answer than a flattering one.
Where I do my best work Demand generation, paid media, and marketing analytics teams that care how results are measured.
What I care about Clear thinking, good handoffs, honest limits, and leaving the next person with something they can use.
Say hello

Start with a real question.

I like talking shop about measurement, paid media, and the things I build on the side. LinkedIn messages reach me fastest.