GTM Engineer

About Finix Finix is building the global operating system for fintech, starting with payments. From startups to publicly traded companies, Finix processes tens of billions of dollars annually both in-store and online. Finix was founded in 2015 and is headquartered in San Francisco.

To date Finix has raised over $200M, including a $75M Series C led by Acrew Capital and Lightspeed Venture Partners and backed by American Express Ventures, Bain Capital Ventures, Homebrew, Inspired Capital, Visa, and others

About the role

The engineering team owns the delivery and stability of our product end to end. Since Finix serves as the complete payment platform of our customers’, our engineering team owns our customers’ ability to capture revenue. The Sr. Software Engineer role centers around envisioning superior technical solutions to our customers’ payment needs, leading its implementation and continuously ensuring reliable service to our customers. You will have broad autonomy and responsibility for formulating the best solution possible and working with your peers to deliver your vision. Finix is looking for a team member to join our engineering team who brings exceptional technical acumen, attention to detail, interest to grow and an obsession with building excellent, performing and scalable software.

What You'll Be Doing Build GTM Infrastructure

Rebuild and optimize core GTM systems and workflows across Marketing, Sales, and Partnerships that support pipeline generation and customer expansion

Own HubSpot architecture, automation, attribution, enrichment, routing, and reporting

Design scalable lead lifecycle infrastructure and source classification systems

Create and maintain reliable GTM data pipelines across paid ads, CRM, product, and third-party tools

Build API integrations between internal systems and external vendors

Operationalize AI Across GTM

Deploy AI-native workflows and agents across prospecting, enrichment, routing, qualification, and campaign operations

Build systems leveraging tools like Claude, Clay, OpenAI, and workflow orchestration platforms

Develop anomaly detection, QA checks, and automated reporting for GTM data integrity

Identify repetitive operational workflows and automate them end-to-end

Partner Cross-Functionally

Work closely with Marketing to improve campaign measurement, attribution, and funnel visibility

Partner with Sales and Partnerships to improve lead quality, routing, enrichment, and outbound infrastructure

Collaborate with Product and Engineering on product-led growth signals and internal tooling

Document systems, processes, and operational best practices across the GTM organization

Areas of Ownership HubSpot rebuild + administration

Attribution modeling

Lead/source classification

Workflow automation (HubSpot + AI)

Ads data pipelines

CRM enrichment + deduplication

GTM reporting infrastructure

API integrations

AI-powered prospecting workflows

Data quality monitoring + anomaly detection

Revenue systems documentation

What We're Looking For 5+ years of demonstrated experience in RevOps, Growth Ops, Marketing Ops, Sales Ops, GTM Engineering, or related operational roles within a high-growth SaaS environment.

Strong systems thinking and technical curiosity to solve complex business problems with scalable solutions

Expert-level, hands-on experience with HubSpot in a fast-paced environment building and maintaining workflows, audience segments, API connectors and error handling.

Proficient with AI-native GTM tooling (e.g, Claude, OpenAI, Zapier, , etc), agent frameworks (e.g. LangChain, CrewAI, or similar) for building multi-step AI workflows and data enrichment tools (e.g. Apollo, 6Sense or similar)

Comfortable working with APIs, automation tooling, spreadsheets, and low-code workflows

Experience building reporting and attribution systems across advertising solutions including LinkedIn, Google, Meta, 6Senses

Strong analytical skills and attention to operational detail

Excellent verbal and written communication and process documentation skills to clearly articulate complex technical strategies to both technical and non-technical stakeholders

Bias toward action and comfort operating in ambiguity

Nice to Have Experience in fintech, payments, or infrastructure companies

Familiarity with warehouse tooling like Snowflake or BigQuery

Experience supporting outbound and PLG motions simultaneously

Why Finix Finix is reimagining payments infrastructure from the ground up. We believe modern financial systems should be programmable, flexible, and accessible to every business.

You’ll join a low-ego, high-ownership environment where you can shape foundational revenue infrastructure, work alongside exceptional operators, and help define what AI-native GTM looks like inside one of the leading payments platforms in fintech.