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# Senior Full-Stack Developer (Python, Typescript, PostgreSQL) - PT/FT - NA/LATAM/EU

- **Company:** Arc Full-time
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** Microsoft Excel, Amazon Web Services, Big Data, Customer Data Management, Data Infrastructure, Relational Databases, Design of User Interfaces, Python (Programming Language), PostgreSQL, Conversion Tracking, TypeScript, Backend, Enterprise Integration, Api Design
- **Published:** July 21, 2026
- **Apply:** https://arc.dev/signup?userType=developer&publicRandomKey=p63y1plszg&to=https%3A%2F%2Farc.dev%2Fdashboard%2Fd%2Fverified-jobs%2Fp63y1plszg%2Fapplication

## About the Role

* Strong full-stack experience: Python, TypeScript
 * PostgreSQL / relational DB fluency, comfortable with large-scale data (millions of rows, high update frequency)
 * API design and third-party integration experience
 * AWS hosting familiarity
 * Strong English communication (spoken)
 * Comfortable maintaining/extending an existing codebase rather than rebuilding, * Logistics/fleet ops platform experience
 * Experience with Mac-based teams/back-end compatibility (client team is Mac-based)
 * Eastern/Canada time zone overlap (preferred)

## Description

Client has an in-house-built operational platform (Postgres, Python, TypeScript, hosted on AWS) currently used to manage installer photo uploads, campaign tracking, vehicle/kit availability, and fleet data at scale (millions of data points, multiple large customers). It works but was built by a non-professional team under time pressure. Need someone to take over the existing codebase - not rebuild - and get it production-ready fast.

Responsibilities

 * Build API integration capability (none exists yet - enterprise customers will need to connect their own systems; exact specs not yet defined by those customers)
 * Build out scheduling module (currently managed in Excel - master sheet per campaign/location/target) and unify it with existing data platform as single source of truth
 * Improve UI/UX - functional but rough; needs to look credible to enterprise customers
 * Build a customer-facing view (permissioned, shows only approved/completed data - separate from internal working view)
 * Work within and extend the existing architecture - must preserve prior work, not rearchitect from scratch
 * NDA required before being shown proprietary/customer data (signed after first-stage interview, before technical deep-dive)


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