The GTM Engineer has moved from a niche title to a standard hire at growth-stage software companies. Onfire's analysis of GTM Engineer job postings found that postings grew 205% year over year and that 66% of the roles it reviewed named Clay.
A GTM Engineer builds the systems behind pipeline: Clay enrichment, signal-based scoring, automated outbound, CRM routing and AI agents that research accounts. A company opening this role is about to choose data, enrichment and automation vendors, which makes it one of the more direct buying signals for vendors that sell GTM infrastructure.
This list ranks venture-backed companies that posted a GTM Engineer role in the 90 days before this analysis by their 12-month headcount growth, then checks each against public sources.
How the companies were selected
Every company on the list had to meet four criteria:
- At least one GTM Engineer posting, counting job postings whose titles contain "GTM engineer" or "go-to-market engineer", created in the last 90 days
- 20 to 2,000 employees
- Venture-backed and privately held, with at least one disclosed institutional round; publicly listed and private equity-owned companies were removed
- Hiring for itself, excluding staffing firms, job boards and recruiting marketplaces that post roles for others
Most companies posted a single GTM Engineer role, so posting counts could not separate them. The ranking instead orders companies showing the signal by 12-month headcount growth in Landbase data. Companies already profiled in other Landbase rankings, such as Bobyard, depthfirst and LangChain, were set aside.
Postings measure open requisitions in Landbase's job-posting index over 90 days. Roles can be reposted or filled and removed, and headcount growth comes from professional-profile data that can differ from company figures. The signal shows hiring intent, not a confirmed hire.
1) Hypha
CEO: Peter Wang (co-founder)
Role posted: GTM Engineer
12-month headcount growth: +511%
Latest round: $50 million seed, June 2026, led by TriEdge Investments
HQ: New York, New York
Category: AI asset intelligence for private markets and lenders
What Hypha sells
Hypha sells an AI-native platform that investors and lenders use to monitor assets, manage portfolio risk and make lending and investment decisions faster.
The hiring signal
Landbase recorded a GTM Engineer posting from Hypha in late September 2026. The company's Ashby job board showed no open roles at the time of writing, so the requisition may have been filled or paused.
Funding and growth
Hypha emerged from stealth with a $50 million seed round led by TriEdge Investments and said it would use the capital to expand its engineering, go-to-market, design and marketing teams and its R&D presence in Tel Aviv.
What it means for sellers
Selling into private credit and real estate needs data on lenders, funds and owners. Financial-services contact data, enrichment and CRM setup vendors have an opening.
2) Baseten
CEO: Tuhin Srivastava (co-founder)
Role posted: GTM Engineer
12-month headcount growth: +305%
Latest round: $1.5 billion Series F, June 2026, led by Altimeter Capital, Conviction Partners and Spark Capital
HQ: San Francisco, California
Category: AI inference infrastructure
What Baseten sells
Baseten sells an inference platform that AI companies use to deploy and run models in production.
The hiring signal
Baseten's GTM Engineer role is based in New York and pays $175,000 to $200,000. The listing says the GTM Engineering team builds internal AI products for the field, and asks for someone who knows "when to reach for Clay and when to build something custom in Claude Code." A GTM Systems Manager posting lists Salesforce, Outreach, Clay and Gong in the stack.
Funding and growth
Baseten announced a $1.5 billion Series F at a $13 billion valuation. The company said revenue grew 20 times over the prior year.
What it means for sellers
With a mature stack already in place, the opening is for AI-native GTM tools and agent infrastructure rather than basic enrichment.
3) Avoca
CEO: Tyson Chen (co-founder)
Role posted: GTM Engineer
12-month headcount growth: +279%
Latest round: Series B led by Meritech and General Catalyst, announced April 2026
HQ: New York, New York
Category: AI front office for home services businesses
What Avoca sells
Avoca sells AI agents that answer calls, texts and chats, book jobs and follow up on estimates for HVAC, plumbing, electrical, roofing and other trades businesses.
The hiring signal
Avoca's GTM Engineer posting reports to the Head of Growth and will map and enrich Avoca's target market, find signals that indicate which accounts are likely to buy, and build an autonomous outbound email program to thousands of accounts.
Funding and growth
Fortune reported that Avoca had raised more than $125 million across three rounds at a $1 billion valuation, including a Series A led by Kleiner Perkins. The company says it grew 10 times in 2025.
What it means for sellers
Vendors of local-business data, enrichment waterfalls and email deliverability tools match this brief directly.
4) TextYess
CEO: Riccardo Russo (co-founder)
Role posted: GTM Engineer
12-month headcount growth: +267%
Latest round: €4 million seed extension, October 2026, led by Italian Founders Fund
HQ: Milan, Italy
Category: Conversational commerce for e-commerce brands
What TextYess sells
TextYess sells AI agents that run WhatsApp campaigns, recover abandoned carts and handle customer support for e-commerce brands.
The hiring signal
Landbase recorded a GTM Engineer posting from TextYess in late September 2026. The role no longer appears on the company's job board, which now lists a Business Development Representative and a UK Customer Success Manager.
Funding and growth
Forbes Italia reported that TextYess raised €4 million led by Italian Founders Fund, bringing total funding above €7 million. The company reported more than 350 brand customers, including Ducati and PittaRosso, and plans to expand outside Italy starting with the UK.
What it means for sellers
A small team entering the UK needs local e-commerce contact data and multichannel sequencing.
5) Fireworks AI
CEO: Lin Qiao (co-founder)
Role posted: GTM Engineer; GTM Engineer, Marketing & SDR
12-month headcount growth: +242%
Latest round: $1.5 billion Series D, July 2026, led by Atreides Management, Index Ventures and TCV
HQ: San Mateo, California
Category: AI inference and model customization platform
What Fireworks AI sells
Fireworks AI sells a platform for building, tuning and serving AI models on open-weight models.
The hiring signal
Fireworks has two GTM Engineer requisitions open, one for revenue systems in San Francisco and one for marketing and SDR systems in San Mateo. A separate Head of GTM Engineering & Systems posting says the GTM team is growing 10 times, from roughly 50 to more than 300 people, and names Clay, Harmonic and Sumble in its enrichment layer.
Funding and growth
Fireworks closed a $1.505 billion Series D at a $17.5 billion post-money valuation. The company said it had passed $1 billion in annualized revenue run rate, five times the prior year.
What it means for sellers
A GTM team scaling this fast needs enrichment, routing and agentic tooling built on Salesforce.
6) Langdock
Co-CEOs: Lennard Schmidt (co-founder) and Judith Dada
Role posted: GTM Engineer - m/f/d
12-month headcount growth: +204%
Latest round: $3 million seed, April 2024, led by General Catalyst and La Famiglia (no later round confirmed)
HQ: Berlin, Germany
Category: Enterprise AI platform
What Langdock sells
Langdock sells a model-agnostic AI platform that lets companies roll out chat, agents, workflows and API access across the organization with security controls.
The hiring signal
Langdock's GTM Engineer role sits in the Sales & Partnerships team in Berlin. The listing describes "a builder role, not a CRM administration role" that combines account data, buying signals and AI research to find companies ready for an AI rollout.
Funding and growth
In June 2026, Deutsche Startups reported that Visionaries Club partner Judith Dada was joining as co-CEO and that Langdock said its annual recurring revenue had reached $40 million. One profile reports a later Series A, but it could not be confirmed.
What it means for sellers
European contact coverage, GDPR-compliant enrichment and product-usage signal tooling are the natural fits.
7) DualEntry
CEO: Santiago Nestares (co-founder)
Role posted: GTM Engineer
12-month headcount growth: +197%
Latest round: $90 million Series A, October 2025, led by Lightspeed Venture Partners and Khosla Ventures
HQ: New York, New York
Category: AI-native ERP
What DualEntry sells
DualEntry sells an AI-native ERP that automates accounting from data entry to month-end close for mid-market finance teams.
The hiring signal
DualEntry's GTM Engineer posting in New York City is the most tool-specific listing on this list: HubSpot, Clay, Smartlead, HeyReach, Apollo, FullEnrich, RB2B and Nooks.
Funding and growth
DualEntry raised a $90 million Series A with GV, Contrary and Vesey Ventures participating. Total funding is above $100 million.
What it means for sellers
The listing invites the hire to replace underperforming tools, so contact data, enrichment and LinkedIn automation vendors face open evaluation.
8) hosted·ai
CEO: Ditlev Bredahl (co-founder)
Role posted: Go-to-Market Engineer
12-month headcount growth: +190%
Latest round: $19 million seed, March 2026, led by Creandum
HQ: San Jose, California (per Landbase)
Category: GPU cloud infrastructure software
What hosted·ai sells
hosted·ai sells software that lets GPU cloud operators pool and share GPUs across workloads.
The hiring signal
Landbase recorded a Go-to-Market Engineer posting in early August 2026. The company's careers page no longer lists it, which now lists enterprise sales directors and marketing roles.
Funding and growth
hosted·ai raised $19 million led by Creandum to expand GPU virtualization and its capacity marketplace.
What it means for sellers
Its market of GPU operators is small, so account research and technographic data matter more than volume.
9) Chamelio
CEO: Alex Zilberman (co-founder)
Role posted: Founding GTM Engineer
12-month headcount growth: +186%
Latest round: $26 million Series A, September 2026, led by Entrée Capital
HQ: New York, New York
Category: AI for in-house legal teams
What Chamelio sells
Chamelio sells an AI platform for in-house legal teams that reviews contracts and handles routine legal tasks autonomously.
The hiring signal
Landbase recorded a Founding GTM Engineer posting in late August 2026. The role is no longer on Chamelio's job board, which now lists an Account Executive, a Sales Development Representative, a Head of Demand Gen and a Product Marketing Manager.
Funding and growth
Chamelio raised a $26 million Series A led by Entrée Capital. Other coverage reported that annual recurring revenue had quadrupled since the seed round.
What it means for sellers
A founding GTM Engineer alongside new SDR and demand gen hires means the outbound stack is being chosen at once.
10) Nominal
CEO: Cameron McCord (co-founder)
Role posted: GTM Engineer
12-month headcount growth: +163%
Latest round: $80 million Series B-2, March 2026, led by Founders Fund
HQ: Los Angeles, California (Landbase lists Austin, Texas)
Category: Hardware test and evaluation software
What Nominal sells
Nominal sells software for managing hardware test data to teams building aircraft, satellites, autonomous vehicles and defense systems.
The hiring signal
Landbase recorded GTM Engineer postings from Nominal in early August 2026, listed three times for one role. The role is not on the current careers page, which carries a Senior GTM Recruiter role in Los Angeles and Austin.
Funding and growth
Nominal raised an $80 million Series B-2 at a $1 billion valuation. The company reported roughly sevenfold revenue growth over the prior year.
What it means for sellers
Selling into aerospace and defense requires data on technical buyers across primes and startups.
What the GTM Engineer hiring data shows
First, GTM Engineer hiring is usually a single hire. Of the 89 companies in the candidate pool, 85 posted one distinct GTM Engineer title. Fireworks AI, with two engineers and a head of GTM Engineering, is the exception. Several companies, including Hypha, TextYess, Chamelio and Nominal, had already removed the posting.
Second, the role is concentrated in AI-native companies and in New York. Every company on this list sells an AI product or AI infrastructure. In the wider pool, 65 of 89 companies are U.S.-headquartered and 27 are based in New York, more than in San Francisco.
Third, the job descriptions converge on the same stack. Clay appears in the Baseten, Fireworks and DualEntry listings, alongside HubSpot or Salesforce, sequencing tools and, increasingly, Claude Code and in-house AI agents. Most postings in the pool appeared between August and late September 2026, often within weeks of a funding round.
For GTM teams, a GTM Engineer posting is more useful when paired with funding, SDR hiring, leadership changes and data enrichment signals than when read on its own. Related Landbase rankings cover companies hiring the most SDRs and AI startups adding headcount fastest.
All ten go-to-market hiring signals in this series are collected in GTM Hiring Signals to Watch in 2026.
How to find companies with this hiring signal in Landbase
The ranking in this article was built from Landbase job-posting data. A search found companies with GTM Engineer postings over 90 days, filtered them by employee count and funding, sorted them by 12-month headcount change, and each company was then checked against public sources.
Landbase's web and CLI interfaces access the same account, datasets, and saved work.
For more complex requirements, the Advanced Dataset Creator supports filters, calculations, and custom output fields.
Landbase's data infrastructure includes more than 800 million contacts and more than 40 million companies across more than 1,500 fields, with enrichment from more than 20 providers.
A GTM Engineer workflow could, for example, find companies that posted a GTM Engineer or RevOps role in the last 30 days, raised a Series A or B in the past year, and use Clay or HubSpot, then return the contact details of the head of growth or revenue operations who will manage the hire.
The Landbase CLI setup supports these workflows from a standard terminal and from AI coding environments including Claude Code and Codex.
Frequently Asked Questions
Which companies are hiring GTM Engineers?
Among venture-backed companies with 20 to 2,000 employees that posted a GTM Engineer role in the last 90 days, Hypha, Baseten, Avoca, TextYess and Fireworks AI had the fastest 12-month headcount growth in Landbase data, followed by Langdock, DualEntry, hosted·ai, Chamelio and Nominal.
What does hiring a GTM Engineer indicate about a company?
It usually means the company is building or rebuilding its outbound and revenue systems, including data sources, enrichment, scoring, sequencing and AI automation. Those decisions bring new tool purchases and vendor reviews.
How reliable are job-posting signals?
They show intent, not confirmed hires. Several roles on this list were filled or removed within weeks, and one requisition can be posted more than once, so postings work best combined with funding and headcount data.
Who should sell to companies hiring GTM Engineers?
Vendors of B2B contact and company data, enrichment platforms, sales engagement and email infrastructure, workflow automation, intent and signal data, and AI agents for research and outreach.
How can GTM teams track GTM Engineer hiring?
Teams can monitor job postings by title over a set window and combine them with funding, headcount growth and technology data. Landbase supports this through job-posting data, enrichment, structured datasets and web and CLI workflows.
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