Open to full-time GTM Engineer roles

Outbound systems that turn cold lists into booked revenue.

I'm Radhakrishnan, a GTM Engineer who builds B2B outbound systems end to end, from ICP research and enrichment to infrastructure, copy and deliverability, for clients in the US, Canada, UK, UAE and Australia.

Hire me See the results LinkedIn
Available in EST · CST · MST · PST Remote · based in Chennai, India
Portrait of Radhakrishnan
~$1Mclient revenue generated
~$1Mclient revenue generated by systems I've built
250Kemails a month across clients, with no deliverability issues
95%contact coverage from waterfall enrichment before launch
~90%meeting show-up rate with a warm call before every booking

Client results

Pipeline you can see in the dashboards.

A sample of campaigns I've owned end to end. Every screenshot comes straight from the sending platform, with a note underneath explaining what it shows.

US digital marketing agency

Global Growth Networks

5 clients closed and $180K revenue in 60 days

Cold email to waterproofing companies, with separate campaigns for each title band (Owner/CEO, VP/Director, Manager) so I could see exactly which persona was landing.

1,550accounts contacted in month 1
17 → 9qualified leads → meetings
$108Krevenue from 3 clients in month 1
Smartlead global analytics showing 1,550 leads reached, 5,658 emails sent, 147 replies, 17 positive replies and 0 bounces
Month 1 in Smartlead (Oct 15 – Nov 15). 1,550 leads reached with 5,658 emails, 147 replies and 17 positive replies, with 0 bounces. Those 17 leads turned into 9 booked meetings and 3 closed clients at $36K each.
Smartlead campaign list split by persona showing reply rates between 4.76% and 15.08% with 0 bounces
1 campaign per persona. Owner/CEO, VP/Director and Manager each ran as their own sequence, from both standard lists and Clay-enriched lists. VP/Director reached a 15.08% reply rate and Owner/CEO 13.51%, with 0 bounces across every campaign.
Email copy
US-based private equity firm

Liberty Bay Capital

164 leads generated

Targeted investment bankers with the firm's exact deal criteria, so every conversation started on-thesis rather than on volume.

21.4Kemails sent
5.06%reply rate
164leads generated
Instantly analytics showing 21.4K sent, 5.06% reply rate and 164 opportunities
Instantly analytics, 6-month view. 21.4K emails sent to investment bankers at a 5.06% reply rate, producing 164 leads for the firm's deal pipeline.
Email copy
US PPC agency

The Bolton Agency

2 clients closed and $72K added in 30 days

The first 5 appointments were booked inside week 1. Leads grew from 16 in month 1 to 42 in month 2 as the campaign scaled.

16opportunities in the first 7 days
42leads in month 2
$72Knew deals in 30 days
Instantly analytics for the first week showing 2.6K sent, 76.9% open rate, 4.5% reply rate and 16 opportunities
Week 1 in Instantly (Jan 3 – Jan 9). 2.6K emails at a 76.9% open rate and 4.5% reply rate produced 16 opportunities in the first 7 days.
Instantly analytics for month 2 showing 17.7K sent, 47.1% open rate, 2.3% reply rate and 42 opportunities
Month 2 in Instantly (Feb 12 – Mar 13). Volume scaled to 17.7K emails, bringing in 42 opportunities.
Canada · PPC agency

Diamond+

$168K pipeline and 48 qualified leads in 70 days

Multi-segment cold email run through Instantly, with daily opportunity reporting sent straight to the client's team channel.

26.4Kemails sent
4.9%reply rate
48opportunities
Instantly analytics showing 26.4K sent, 52.3% open rate, 4.9% reply rate and 48 opportunities worth $168,000
Instantly analytics (Jan 1 – Mar 31). 26.4K emails at a 52.3% open rate and 4.9% reply rate produced 48 opportunities worth $168,000 in pipeline.
Automation client · ScaleSprint

ScaleSprint automation client

31 opportunities and $31K pipeline in 3 months

A fully automated outbound engine I run at ScaleSprint, from sourcing and enrichment through to sending, at a volume of 37.7K sequences in 3 months.

37.7Ksequences started
1,153total replies (3.01%)
$31Kpipeline from 31 opportunities
Campaign analytics for the last 3 months showing 37.7K sequences started, 3.01% reply rate, 2.73% positive reply rate and 31 opportunities worth $31K
Last 3 months (Jul 22 – Sep 29). 37.7K sequences started with a 3.01% reply rate (1,153 replies) and a 2.73% positive reply rate, producing 31 opportunities worth $31K.
LinkedIn outreach · Sendpilot

LinkedIn post campaign

$51K pipeline from 186 connection requests

A LinkedIn campaign run through Sendpilot: connection request, then a follow-up message once accepted. 31% of messaged prospects replied.

45%connection acceptance (84 of 186)
31%reply rate (26 replies)
17opportunities worth $51K
Sendpilot LinkedIn campaign dashboard showing 186 connections sent, 84 accepted, 85 messages sent, 26 replies and 17 opportunities worth $51,000
Sendpilot, 30 days (Apr 20 – May 20). 186 connection requests, 84 accepted (45%), 85 messages sent and 26 replies (31%), producing 17 opportunities worth $51,000.
~6 clients

ScaleSprint, every month

I run the full GTM automation for the agency's client roster, from sourcing to sending.

406 leads

Digital agency · 5 months

Cold email systems built as a freelancer, with $0 ad spend.

0 → 55K AED

Khibra Technologies · 1 month

Monthly revenue (~$15K) from a predictable client acquisition system.

The system

10 steps from blank domain to booked meeting.

The same playbook runs behind every result above. More of it is automated in Claude Code each month, so hand-offs between steps don't depend on anyone doing them by hand.

Infrastructure setup

Domains, inboxes (typically 10 domains / 30 inboxes), warmup and platform config for deliverability.

Deep market research

Build the GTM context: market, buyers, competitors and triggers.

TAM mapping

Map industries and sub-industries by size, value and growth potential.

ICP validation

Prioritise segments, define personas and pin down core pains.

Account sourcing

Apollo, Clay, Ocean.io lookalikes and industry directories.

Targeting keywords

Precise keyword lists so database filters return exact-fit companies.

Signal-based lead gen

Job posts, LinkedIn activity and news triggers, then waterfall enrichment and verification.

Offers & messaging

Front-end offers and multiple spintax variants built on ICP pains and social proof.

Campaign execution

Launch within safe volume limits, then monitor replies and deliverability daily.

Booking & nurture

Handle positive replies, warm-call every meeting and nurture the rest.

Experience

7 years in revenue, 3 in GTM engineering.

Jul 2026 – PresentDubai, UAE · Remote

GTM Engineer ScaleSprintCurrent

  • Building a GTM automation system in Claude Code & VS Code that connects the full tech stack into 1 workflow, removing manual hand-offs between sourcing, enrichment, qualification and sending.
  • Sending around 250K emails a month across clients without deliverability issues.
  • Researching and scoring accounts to build ICP-fit target lists across client campaigns.
  • Writing and testing outbound copy, and tracking which angles land and which get ignored.
  • Partnering directly with leadership on GTM strategy for new and existing clients.
Sep 2023 – Jun 2026Wyoming, US · Remote

GTM Engineer Brandly Studio

Full outbound ownership for US clients across digital marketing, PPC, private equity and B2B services.

  • Owned the full motion per client: ICP, TAM, list build, enrichment, infrastructure, copy, launch and optimisation.
  • Set up cold email infrastructure from scratch, typically 10 domains and 30 inboxes per client, including warmup and monitoring.
  • Ran waterfall enrichment across Prospeo, Leadmagic and others to reach 95% contact coverage before any sequence went live.
  • Built Clay workflows for signal-based targeting (LinkedIn activity, job posts, news triggers) plus Ocean.io lookalike modelling.
  • LinkedIn alongside email: 90 requests → 25 accepts → 24 conversations → 5 booked meetings in week 1.
  • Added a warm call before every booked meeting, which took show-up rates to around 90%.
Sep 2022 – Aug 2023Upwork · Freelance

Email Marketing Specialist

  • Built cold email systems that generated 406 leads for a digital agency over 5 months with $0 ad spend.
  • Designed cold email and LinkedIn funnels delivering 10–20 booked calls a month for B2B clients.
  • Ran outbound audits and 1:1 offer coaching to improve client close rates.
Jan 2020 – Aug 2022Fiverr · Freelance

Social Media & Video Marketing

  • Ran social and paid Meta campaigns for restaurants, real estate and local service businesses.
  • Produced video sales letters, marketing videos and eLearning content for B2B businesses.
Jul 2019 – Jan 2020Dubai, UAE

Business Development Manager Khibra Technologies

  • Scaled the agency from 0 to 55K AED (about $15K) in monthly revenue in 1 month.
  • Closed multiple AED 50K deals covering web design and ERP implementation for UAE SMEs.
  • Managed the pipeline from inbound handling through consultative discovery to close.

Tech stack

The tools behind the pipeline.

Build & orchestration

Claude CodeVS CodeCodexMaken8n

Lead databases

ApolloSales NavigatorAI ArkOcean.ioGetLeadsOutscraperExa

Scraping & research

ApifySerper.devSpider.cloudInstant Data Scraper

Waterfall enrichment

ClayProspeoLeadmagic

AI qualification

ClaudeOpenAI

Email verification

ZeroBounceMillionVerifierBounceBan

Sending & outreach

InstantlySmartleadPlusVibeEmail BisonHeyReach

CRM

HubSpotAttio
GTM AutomationAI & Agentic WorkflowsClay Workflow DevelopmentOutbound InfrastructureWaterfall EnrichmentWeb Scraping & Data ExtractionICP Research & TAM MappingSignal-Based TargetingLead ScoringABM StrategyList BuildingMulti-Touch SequencingCold Email CopywritingLinkedIn Outreach AutomationCampaign OptimisationCRM OperationsPipeline Reporting

Education & certifications

Always learning the next layer of the stack.

Bachelor of Engineering

Pavai College of Technology
Namakkal, Tamil Nadu · 2016
7.9 CGPA

  • Signals & ABMClay
  • GTM AutomationClay
  • Claude Code 101Anthropic
  • Claude 101Anthropic
  • Google Analytics CertificationGoogle
  • B2B Remote Closing MasteryPixelTrack
  • Digital Marketing AssociateSMstudy

Open to work

Want to hire me? Let's talk.

I'm looking for a full-time GTM Engineer role on a team that wants outbound to be a real, measurable growth channel. If you're hiring, I'd love to show you how I'd build yours.

Email me about a role Message me on LinkedIn

Available in your time zone

ESTCSTMSTPSTGMTGST

How I work

Full-time, remote. I work US & Canada business hours.