Senior Full Stack Engineer, Proxima

$170-210k

+ Equity

SQL

React

AWS

Docker

Kubernetes

CSS

TypeScript

GCP

Python

Airflow

Azure

dbt

Senior and Expert level

New York

Remote from US

More information about location

Predictive data intelligence

Be an early applicant

Predictive data intelligence

21-100 employees

B2BArtificial IntelligenceMarketingAnalyticsSaaSAdvertising

Be an early applicant

$170-210k

+ Equity

SQL

React

AWS

Docker

Kubernetes

CSS

TypeScript

GCP

Python

Airflow

Azure

dbt

Senior and Expert level

New York

Remote from US

More information about location

21-100 employees

B2BArtificial IntelligenceMarketingAnalyticsSaaSAdvertising

Company mission

To help modern brands navigate the ever-changing digital landscape and maximize their marketing performance with AI-powered solutions that have traditionally been out of reach for most companies.

Job

Company

Role

Who you are

If you thrive in fast-paced, startup environments and love pushing the limits of AI-assisted development, we want to talk to you
6+ years of professional software development experience
Proven experience working in startup environments—you’ve shipped products fast and worn multiple hats
Proficiency with TypeScript, Python, and React
Experience writing and maintaining CSS in production-grade web apps
Strong working knowledge of SQL and relational database design
Demonstrated experience building or integrating with AI-powered applications
Daily use of AI-assisted coding tools (e.g., GitHub Copilot, Cursor, Claude Code, etc.) is required
Comfortable owning projects independently in a high-velocity development environment
Bachelor’s degree (or higher) in Computer Science, Engineering, or a related field

Desirable

Familiarity with building or managing AI agent frameworks, orchestration tools, or embeddings
Experience with data engineering workflows (ETL, dbt, Airflow, etc.)
Knowledge of cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes)

What the job involves

Proxima has a unique dataset most companies only dream of: real-time, anonymized cross-brand transaction data at scale
We’re looking for a Senior Full Stack Engineer to join our team building AI-driven products powered by this data to help level the playing field, helping independent brands find their perfect customers while helping consumers discover their next favorite products from businesses they've never heard of
You’ll play a central role in developing intelligent systems from custom AI agents to powerful backend services and sleek user interfaces
This is a true full stack role, ideal for engineers who are as passionate about writing clean CSS as they are about building robust APIs and working with data
Build, maintain, and scale full stack applications using TypeScript, React, and Python
Work on end-to-end features including AI agent interfaces, orchestration layers, and developer-facing tools
Write and style responsive user interfaces using CSS/SCSS
Design, build, and document backend services and APIs
Query and manage relational databases using SQL
Collaborate with cross-functional teams to iterate quickly and deliver high-impact features
Own projects from architecture to deployment in a fast-paced, agile environment
Stay on the cutting edge of modern development practices, especially around AI integration
Be part of a lean team building the next generation of AI-native tools and workflows
High autonomy and ownership from day one

Our take

Proxima AI addresses the challenge faced by consumer technology businesses in effectively leveraging data intelligence for growth. With a proprietary database of over 65M unique shoppers, it allows companies to navigate the complexities of consumer behaviour to inform their marketing.

Essentially, Proxima AI helps users get their ads in front of "high-intent" shoppers by taking shopper data and generating the right audiences for the right product. It also supplies AI-powered business analytics, contributing to increased customer acquisition, revenue and growth.

Recent funding positions Proxima to accelerate its innovation trajectory with the expansion of its technology platform. It will also pursue broader market reach as it expands its network of connections and works to solidify its position as a leader in the data intelligence space.

Steph

Company Specialist at Welcome to the Jungle

Company

Funding (1 round)

Apr 2024

$12m

SERIES A

Total funding: $12m

Company benefits

Unlimited PTO so you can take the time you need
Health, dental, and vision insurance for you and your dependents
Annual membership to OneMedical and Teledoc
Summer Fridays from July 4th Weekend to Labor Day each year
401k program
12 weeks Paid Parental Leave
Commuter pre-tax benefits
Learning & Development Stipend
HSA and FSA pre-tax benefits
Pet-Friendly Office Space in the Heart of Soho

Company HQ

SoHo, New York, NY

Leadership

Alex Song

(CEO)

Co-founder of Grummies, WellPath, Finn and Innovation Department. Previously co-founded DojoMojo. Also worked as an Investment Analyst at Pershing Square Capital Management and as an Associate at Goldman Sachs.

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