I build the data pipelines, enrichment, and cold-email infrastructure that turn untapped audiences into booked meetings, with multiple data sources, automation, and AI.
Tools I work with:
I'm Marielle, a GTM Engineer and outbound specialist. If you're a founder pushing for pipeline or a team that needs systems that actually scale, I bring the technical execution to make it happen.
From Claude Code/Codex workflows and cold email infrastructure to full outbound automation, I handle the build so you can focus on closing.
End-to-end GTM engineering for outbound that actually works
Custom scraping from directories, Google Maps, product databases, and industry-specific sources. Not just Apollo exports.
Multi-source enrichment with AI qualification. Claygent prompts to verify ICP fit, find signals, and score leads.
Segmented messaging based on actual data points. Multiple angles tested simultaneously to find what converts.
Custom automations built with Claude Code and Codex, complex enrichment chains, AI scoring, and CRM integrations. Production-ready systems.
Email and LinkedIn sequences working together. Account-based plays that reach the right person on the right channel.
Every reply, booking, and status change synced to your CRM. Lead routing, pipeline updates, and reporting so nothing falls through the cracks.
Custom AI agents that take the repetitive work off your reps: researching accounts, drafting personalized replies, qualifying inbound, and keeping records updated.
Your SDRs get validated lists, sequences that work, and clean handoffs. I run the ops behind the scenes so their day goes into conversations, not list building.
Real campaigns. Real results. Here's what I've built.
Approach: Scraped LinkedIn Ads using Apify, qualified which companies are B2B.
Why it worked: Personalized first line referencing their actual LinkedIn ad activity made the outreach hyper-relevant.
Approach: Scraped Slicelife and Toasttab restaurant directories. Used Prospeo to find emails associated with domains and reverse prompts to find job titles.
Why it worked: Restaurant prospects are hardly found in LinkedIn/Apollo. These emails are hardly touched by cold email, so they're more open.
Approach: Scraped law firms using Serper, segmented into 3 segments with 3 different messaging angles. Scraped actual Google reviews using Apify.
Why it worked: Created 3 distinct segments (< 80 reviews, 1-2 bad reviews, 100+ reviews) with completely different pain points and messaging.
Approach: Scraped Hotels from Apollo, Directories, and Google Maps using SerpAPI. Referenced their OTA listings.
Why it worked: Referenced their OTA listings (Booking.com, etc.) and offered to reduce commission dependency through direct WhatsApp bookings.
Approach: Scraped software companies offering free trials from Product Hunt, GetLatka, GetApp, Toolify, Sourceforge. Used Pandamatch and Similarweb for traffic data.
Why it worked: AI prompt checked if they actually offer free trial. Companies with free trials want to convert users to paying customers.
Approach: Scraped software directories like Crunchbase, Product Hunt, GetLatka, GetApp, Toolify, Sourceforge. Ran AI prompts to check for free trial offerings.
Why it worked: Targeted companies with specific headcount in phone support/customer support department and heavy website traffic.
Discovery call to understand your ICP, current processes, and goals. Audit existing tools, data sources, and outbound history. Buy domains and inboxes, set up email infrastructure and warmup.
Create copy variations and sequences. Build enrichment workflows for list building. Define target segments and messaging angles. Set up tracking and reporting infrastructure.
Start campaigns with small batches. Monitor deliverability and reply rates. A/B test subject lines and copy. Iterate based on early results. Gradually increase volume as patterns emerge.
Configure CRM integrations and automations. Test everything end-to-end. Double down on winning segments and angles. Expand to new verticals or personas. Add channels (LinkedIn, calls). Build playbooks for your team. Continuous optimization and reporting.
A founder on what it's like working together
What colleagues and clients say about working together
Founder @ oneaway.io
"One of the best hires I've ever made. I recommend Marielle to anyone and everyone under the sun that wants an A player on their team."
Founder @ group-venluto.com
"The best GTM member we've ever had. We brought in 8 clients in just 2 months with Marielle's help. We didn't have to handle the campaigns at all, and she kept us updated daily, providing support that went far beyond simply managing the campaigns."
Founder @ Prospeqt.co
"Working with Marielle made everything feel lighter. You give her the context, tell her the outcome you want, and she just gets it done.
She picked things up fast, Clay workflows, data scraping methods, automation, and kept it all running smoothly. A lot of moving parts, but she made the process feel simple.
She's one of those people you can count on. That alone makes a huge difference when you're building outbound systems at scale."
Founder @ coldlabs.ai
"Marielle is one of the hardest-working people I know. You can give her an incomplete task and trust that she'll figure it out and deliver something even better than expected.
She doesn't just do the work, she finds ways to improve it. That kind of reliability, initiative, and problem-solving capabilities are extremely rare. Hands down - the best in the game."
Founder @ Dreamwell.ai
"Marielle is always on top of the game in her industry. I had the pleasure of working with her as our first sales development representative at dreamwell, and she was awesome at her job.
She's always making sure she's staying up to date with the what's trending in her space, to make sure she's always using the best techniques."
Founder @ pointerstrategy.com
"Elle was an incredible asset to our team and our clients. She consistently went over and above to make sure her work was done to the best of her ability and was extremely coachable in every way.
Elle has a very broad skillset which was greatly needed in our startup with her talking on more than her regular tasks, but also the ones that had 'no home'."
Have an outbound challenge? Let's figure it out together.
Or just email me directly at:
marielle.a.camba@gmail.com